The veins that return the oxygenated blood from the lungs to the left atrium of the heart.
Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias.
Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.
Pathological process resulting in the fibrous obstruction of the small- and medium-sized PULMONARY VEINS and PULMONARY HYPERTENSION. Veno-occlusion can arise from fibrous proliferation of the VASCULAR INTIMA and VASCULAR MEDIA; THROMBOSIS; or a combination of both.
The vessels carrying blood away from the capillary beds.
The chambers of the heart, to which the BLOOD returns from the circulation.
Methods to induce and measure electrical activities at specific sites in the heart to diagnose and treat problems with the heart's electrical system.
The vein which drains the foot and leg.
The use of freezing as a special surgical technique to destroy or excise tissue.
A short thick vein formed by union of the superior mesenteric vein and the splenic vein.
Enlarged and tortuous VEINS.
An impulse-conducting system composed of modified cardiac muscle, having the power of spontaneous rhythmicity and conduction more highly developed than the rest of the heart.
Recording of regional electrophysiological information by analysis of surface potentials to give a complete picture of the effects of the currents from the heart on the body surface. It has been applied to the diagnosis of old inferior myocardial infarction, localization of the bypass pathway in Wolff-Parkinson-White syndrome, recognition of ventricular hypertrophy, estimation of the size of a myocardial infarct, and the effects of different interventions designed to reduce infarct size. The limiting factor at present is the complexity of the recording and analysis, which requires 100 or more electrodes, sophisticated instrumentation, and dedicated personnel. (Braunwald, Heart Disease, 4th ed)
Abnormally rapid heartbeats originating from one or more automatic foci (nonsinus pacemakers) in the HEART ATRIUM but away from the SINOATRIAL NODE. Unlike the reentry mechanism, automatic tachycardia speeds up and slows down gradually. The episode is characterized by a HEART RATE between 135 to less than 200 beats per minute and lasting 30 seconds or longer.
The vein accompanying the femoral artery in the same sheath; it is a continuation of the popliteal vein and becomes the external iliac vein.
Catheters inserted into various locations within the heart for diagnostic or therapeutic purposes.
Veins in the neck which drain the brain, face, and neck into the brachiocephalic or subclavian veins.
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
The venous trunk which returns blood from the head, neck, upper extremities and chest.
The return of a sign, symptom, or disease after a remission.
Radiographic visualization or recording of a vein after the injection of contrast medium.
Abnormally rapid heartbeats with sudden onset and cessation.
Production of an image when x-rays strike a fluorescent screen.
Veins which return blood from the intestines; the inferior mesenteric vein empties into the splenic vein, the superior mesenteric vein joins the splenic vein to form the portal vein.
An anomalous pulmonary venous return in which the right PULMONARY VEIN is not connected to the LEFT ATRIUM but to the INFERIOR VENA CAVA. Scimitar syndrome is named for the crescent- or Turkish sword-like shadow in the chest radiography and is often associated with hypoplasia of the right lung and right pulmonary artery, and dextroposition of the heart.
Short thick veins which return blood from the kidneys to the vena cava.
The condition of an anatomical structure's being constricted beyond normal dimensions.
Venous vessels in the umbilical cord. They carry oxygenated, nutrient-rich blood from the mother to the FETUS via the PLACENTA. In humans, there is normally one umbilical vein.
A vein on either side of the body which is formed by the union of the external and internal iliac veins and passes upward to join with its fellow of the opposite side to form the inferior vena cava.
The thin membrane-like muscular structure separating the right and the left upper chambers (HEART ATRIA) of a heart.
Agents used for the treatment or prevention of cardiac arrhythmias. They may affect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers. Anti-arrhythmia agents are often classed into four main groups according to their mechanism of action: sodium channel blockade, beta-adrenergic blockade, repolarization prolongation, or calcium channel blockade.
Surgical procedures conducted with the aid of computers. This is most frequently used in orthopedic and laparoscopic surgery for implant placement and instrument guidance. Image-guided surgery interactively combines prior CT scans or MRI images with real-time video.
Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY.
The removal or interruption of some part of the autonomic nervous system for therapeutic or research purposes.
A type of cardiac arrhythmia with premature atrial contractions or beats caused by signals originating from ectopic atrial sites. The ectopic signals may or may not conduct to the HEART VENTRICLES. Atrial premature complexes are characterized by premature P waves on ECG which are different in configuration from the P waves generated by the normal pacemaker complex in the SINOATRIAL NODE.
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
Veins which drain the liver.
Ear-shaped appendage of either atrium of the heart. (Dorland, 28th ed)
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
The vein formed by the union of the anterior and posterior tibial veins; it courses through the popliteal space and becomes the femoral vein.
The hemodynamic and electrophysiological action of the HEART ATRIA.
Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.
An involuntary or voluntary pause in breathing, sometimes accompanied by loss of consciousness.
The hemodynamic and electrophysiological action of the LEFT ATRIUM.
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.
Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).
Method in which prolonged electrocardiographic recordings are made on a portable tape recorder (Holter-type system) or solid-state device ("real-time" system), while the patient undergoes normal daily activities. It is useful in the diagnosis and management of intermittent cardiac arrhythmias and transient myocardial ischemia.
Regulation of the rate of contraction of the heart muscles by an artificial pacemaker.
A vein which arises from the right ascending lumbar vein or the vena cava, enters the thorax through the aortic orifice in the diaphragm, and terminates in the superior vena cava.
The electrical properties, characteristics of living organisms, and the processes of organisms or their parts that are involved in generating and responding to electrical charges.
A group of cardiac arrhythmias in which the cardiac contractions are not initiated at the SINOATRIAL NODE. They include both atrial and ventricular premature beats, and are also known as extra or ectopic heartbeats. Their frequency is increased in heart diseases.
Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.
The continuation of the axillary vein which follows the subclavian artery and then joins the internal jugular vein to form the brachiocephalic vein.
The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs.
Radiography of blood vessels after injection of a contrast medium.
Vein formed by the union (at the hilus of the spleen) of several small veins from the stomach, pancreas, spleen and mesentery.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Veins draining the cerebrum.
The small mass of modified cardiac muscle fibers located at the junction of the superior vena cava (VENA CAVA, SUPERIOR) and right atrium. Contraction impulses probably start in this node, spread over the atrium (HEART ATRIUM) and are then transmitted by the atrioventricular bundle (BUNDLE OF HIS) to the ventricle (HEART VENTRICLE).
The circulation of the BLOOD through the LUNGS.
Elements of limited time intervals, contributing to particular results or situations.
A transient dilatation of the lymphatic vessels.
Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.
Developmental abnormalities in any portion of the ATRIAL SEPTUM resulting in abnormal communications between the two upper chambers of the heart. Classification of atrial septal defects is based on location of the communication and types of incomplete fusion of atrial septa with the ENDOCARDIAL CUSHIONS in the fetal heart. They include ostium primum, ostium secundum, sinus venosus, and coronary sinus defects.
A short vein that collects about two thirds of the venous blood from the MYOCARDIUM and drains into the RIGHT ATRIUM. Coronary sinus, normally located between the LEFT ATRIUM and LEFT VENTRICLE on the posterior surface of the heart, can serve as an anatomical reference for cardiac procedures.
Methods of creating machines and devices.
Computed tomography where there is continuous X-ray exposure to the patient while being transported in a spiral or helical pattern through the beam of irradiation. This provides improved three-dimensional contrast and spatial resolution compared to conventional computed tomography, where data is obtained and computed from individual sequential exposures.
The period of time following the triggering of an ACTION POTENTIAL when the CELL MEMBRANE has changed to an unexcitable state and is gradually restored to the resting (excitable) state. During the absolute refractory period no other stimulus can trigger a response. This is followed by the relative refractory period during which the cell gradually becomes more excitable and the stronger impulse that is required to illicit a response gradually lessens to that required during the resting state.
Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.
Central retinal vein and its tributaries. It runs a short course within the optic nerve and then leaves and empties into the superior ophthalmic vein or cavernous sinus.
A congenital heart defect characterized by the narrowing or complete absence of the opening between the RIGHT VENTRICLE and the PULMONARY ARTERY. Lacking a normal PULMONARY VALVE, unoxygenated blood in the right ventricle can not be effectively pumped into the lung for oxygenation. Clinical features include rapid breathing, CYANOSIS, right ventricle atrophy, and abnormal heart sounds (HEART MURMURS).
Large veins on either side of the root of the neck formed by the junction of the internal jugular and subclavian veins. They drain blood from the head, neck, and upper extremities, and unite to form the superior vena cava.
Timing the acquisition of imaging data to specific points in the breathing cycle to minimize image blurring and other motion artifacts. The images are used diagnostically and also interventionally to coordinate radiation treatment beam on/off cycles to protect healthy tissues when they move into the beam field during different times in the breathing cycle.
Clusters of neurons and their processes in the autonomic nervous system. In the autonomic ganglia, the preganglionic fibers from the central nervous system synapse onto the neurons whose axons are the postganglionic fibers innervating target organs. The ganglia also contain intrinsic neurons and supporting cells and preganglionic fibers passing through to other ganglia.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
The inferior and superior venae cavae.
Types of spiral computed tomography technology in which multiple slices of data are acquired simultaneously improving the resolution over single slice acquisition technology.
Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project.
A conical fibro-serous sac surrounding the HEART and the roots of the great vessels (AORTA; VENAE CAVAE; PULMONARY ARTERY). Pericardium consists of two sacs: the outer fibrous pericardium and the inner serous pericardium. The latter consists of an outer parietal layer facing the fibrous pericardium, and an inner visceral layer (epicardium) resting next to the heart, and a pericardial cavity between these two layers.
The venous trunk of the upper limb; a continuation of the basilar and brachial veins running from the lower border of the teres major muscle to the outer border of the first rib where it becomes the subclavian vein.
A spectrum of congenital, inherited, or acquired abnormalities in BLOOD VESSELS that can adversely affect the normal blood flow in ARTERIES or VEINS. Most are congenital defects such as abnormal communications between blood vessels (fistula), shunting of arterial blood directly into veins bypassing the CAPILLARIES (arteriovenous malformations), formation of large dilated blood blood-filled vessels (cavernous angioma), and swollen capillaries (capillary telangiectases). In rare cases, vascular malformations can result from trauma or diseases.
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.

Transcatheter occlusion of a post-Fontan residual hepatic vein to pulmonary venous atrium communication using the Amplatzer septal occluder. (1/1323)

A residual hepatic vein to left atrial communication may result in progressive cyanosis after the Fontan procedure. This problem has usually been treated surgically by ligation or re-inclusion of the residual hepatic vein in the Fontan circulation. Previous attempts at transcatheter closure of such veins have been unsuccessful. An Amplatzer septal occluder was successfully used for transcatheter closure of a post-Fontan hepatic vein to pulmonary venous atrium fistula in an 8 year old boy.  (+info)

Effects of respiratory cycle on pulmonary venous flow and cardiac cycle on pulmonary venous diameter of dogs: a transesophageal echocardiography study. (2/1323)

We investigated 12 anesthetized normal dogs using transesophageal echocardiography to understand the effects of respiration on the pulmonary venous flow. Additionally, we observed whether the diameter of the pulmonary vein changes with the heart beat. The pulsed Doppler wave form of pulmonary venous flow predominantly demonstrated two backward flows, with one peak occurring during ventricular systole and another during ventricular diastole. Sometimes a small forward flow occurred during left atrial contraction. In comparison with expiration, the peak velocity and velocity-time integral of the flow wave under inspiration occurred during both systole and diastole were significantly smaller. The diameter of the pulmonary vein decreased during left atrial contraction and increased during left ventricular systole and diastole.  (+info)

Site of functional bronchopulmonary anastomoses in sheep. (3/1323)

The location of bronchopulmonary anastomoses has long been a topic of discussion, and pre-, post-, and capillary sites have all been demonstrated in postmortem examinations. However, there have been few studies that have provided insight into the patency and function of these anastomoses in the intact lung. To identify these functional sites where the bronchial circulation anastomoses with the pulmonary circulation, we studied sheep lungs in situ serial sectioned with high-resolution computed tomography (CT). Differences in radiodensities of blood, air, and nonionic contrast medium were used to differentiate and localize airways and vessels and to identify the effluent from the bronchial circulation. After an initial series of scans to identify the pulmonary arteries and veins adjacent to airways 2-12 mm in diameter, contrast material was infused into the bronchial artery. In three sheep, the major accumulation of contrast medium was found in pulmonary veins. In one of the sheep, a comparable number of pulmonary arteries and veins contained contrast medium. Serial histologic sections were able to identify small bronchial venules lying within subepithelial bronchial folds that drain directly into pulmonary veins. These results using serial CT and histologic images suggest that drainage from the intraparenchymal bronchial vasculature is predominantly into postcapillary pulmonary vessels.  (+info)

Pulmonary venous flow in hypertrophic cardiomyopathy as assessed by the transoesophageal approach. The additive value of pulmonary venous flow and left atrial size variables in estimating the mitral inflow pattern in hypertrophic cardiomyopathy. (4/1323)

AIMS: This study was conducted to assess the characteristics of the pattern of pulmonary venous flow and to document the interaction of this flow and left atrial function with the pattern of mitral inflow in hypertrophic cardiomyopathy. METHODS AND RESULTS: Pulmonary venous and mitral flows were evaluated by the transoesophageal approach in 80 patients with hypertrophic cardiomyopathy. Left atrial size and function were measured by the transthoracic approach. Their values were compared with those obtained from 35 normal controls. Twelve patients showed significant (> 2+) mitral regurgitation. As a group, hypertrophic cardiomyopathy patients showed increased atrial reversal flow and longer deceleration time of the diastolic wave, but a wide variability of pulmonary venous flow patterns were observed. Thirty patients (37.5%) had pseudonormal mitral flow patterns. Stepwise multilinear regression analysis identified the ratio of systolic to diastolic pulmonary venous flow velocity, the ratio of velocity-time integrals of both flow waves at atrial contraction, the left atrial minimal volume and the systolic fraction as independent predictive variables of the mitral E/A wave velocity ratio (r = 0.82). By logistic regression, the former three variables were selected as independent predictive covariates of a pseudonormal mitral flow pattern (sensitivity: 83%, specificity: 90%). The ratio of velocity-time integrals of both atrial waves was the most important predictive variable in both analyses. CONCLUSIONS: The observed variability in the configuration of pulmonary venous flow velocity waveform is related to what occurs in transmitral flow in patients with hypertrophic cardiomyopathy. Significant mitral regurgitation is not an independent correlate of pseudonormal mitral inflow patterns in these patients. Our results further emphasize the complementary, additive value of the pulmonary venous flow velocity pattern and left atrial size in the interpretation of the mitral flow velocity pattern, and indirectly suggest the underlying increased left ventricular filling pressures of patients with hypertrophic cardiomyopathy and pseudonormal mitral flow patterns.  (+info)

The functional anatomy of the bronchial circulation of the domestic fowl. (5/1323)

The bronchial circulation was studied in 25 adult domestic fowls. The right and left bronchial arteries originated caudal to the syrinx from a bronchoesophageal artery which is a branch of the right common carotid artery. Each bronchial artery ramified on the wall of the extrapulmonary part of the corresponding primary bronchus and finally anastomosed directly with a branch of the pulmonary artery at the hilus of the lung. Thr bronchial artery did not accompany the intrapulmonary part of the primary bronchus. The branches of each bronchial artery formed an anastomosing network on the wall of the extrapulmonary part of the primary bronchus. The calibre of the bronchial artery at its anastomosis with the branch of the pulmonary artery was greater than at its origin from the bronchoesophageal artery. Intravenous injections of Lycopodium spores indicated that the blood flows from the pulmonary artery into the bronchial artery. Small bronchial veins drained the extrapulmonary part of the primary bronchus into the pulmonary vein and the oesophageal veins. The intrapulmonary part of the primary bronchus was supplied by branches of the pulmonary artery and drained by tributaries of the pulmonary vein. The blood supply to the primary bronchus could constitute a shunt capable of passing blood from the pulmonary artery into the pulmonary vein without going through the exchange tissue. The parabronchial (atrial) muscles received a blood supply directly from the exchange tissue via septal venules which formed a network underneath the muscle bundles, without actually penetrating between the muscle cells. These venules drained into atrial veins which were tributaries of the pulmonary vein. The atrial muscles probably also received oxygen by direct diffusion from the parabronchial lumen. The pleura was supplied by the oesophageal branches of the bronchoesophageal artery, and by small twigs from the internal thoracic and intercostal arteries.  (+info)

Defibrillation-guided radiofrequency ablation of atrial fibrillation secondary to an atrial focus. (6/1323)

OBJECTIVES: Our aim was to evaluate a potential focal source of atrial fibrillation (AF) by unmasking spontaneous early reinitiation of AF after transvenous atrial defibrillation (TADF), and to describe a method of using repeated TADF to map and ablate the focus. BACKGROUND: Atrial fibrillation may develop secondary to a rapidly discharging atrial focus that the atria cannot follow synchronously, with suppression of the focus once AF establishes. Focus mapping and radiofrequency (RF) ablation may be curative but is limited if the patient is in AF or if the focus is quiescent. Early reinitiation of AF has been observed following defibrillation, which might have a focal mechanism. METHODS: We performed TADF in patients with drug-refractory lone AF using electrodes in the right atrium (RA) and the coronary sinus. When reproducible early reinitiation of AF within 2 min after TADF was observed that exhibited a potential focal mechanism, both mapping and RF ablation were performed to suppress AF reinitiation. Clinical and ambulatory ECG monitoring was used to assess AF recurrence. RESULTS: A total of 44 lone AF patients (40 men, 4 women; 32 persistent, 12 paroxysmal AF) with a mean age of 58+/-13 years underwent TADF. Sixteen patients had early reinitiation of AF after TADF, nine (20%; 5 paroxysmal) exhibited a pattern of focal reinitiation. Earliest atrial activation was mapped to the right superior (n = 4) and the left superior (n = 3) pulmonary vein, just inside the orifice, in the seven patients who underwent further study. At the onset of AF reinitiation, the site of earliest activation was 86+/-38 ms ahead of the RA reference electrogram. The atrial activities from this site were fragmented and exhibited progressive cycle-length shortening with decremental conduction to the rest of the atrium until AF reinitiated. Radiofrequency ablation at the earliest activation site resulted in suppression of AF reinitiation despite pace-inducibility. Improved clinical outcome was observed over 8+/-4 months' follow-up. CONCLUSIONS: Transvenous atrial defibrillation can help to unmask, map, and ablate a potential atrial focus in patients with paroxysmal and persistent AF. A consistent atrial focus is the cause of early reinitiation of AF in 20% of patients with lone AF, and these patients may benefit from this technique.  (+info)

Prostanoid receptors involved in the relaxation of human pulmonary vessels. (7/1323)

1. To characterize the prostanoid receptors on human pulmonary smooth muscle involved in vasodilatations, isolated arteries and veins were contracted with norepinephrine (10 microM) and vessels were subsequently challenged with different prostanoid-receptor agonists in the absence or presence of selective antagonists. 2. Prostaglandin D2 (PGD2) and the selective DP-receptor agonist, BW245C, induced relaxations in the contracted human pulmonary venous preparations. The pD2 values were: 6.88+/-0.11 (n=17) and 7.31+/-0.12 (n=5), respectively. The relaxant responses induced by PGD2 were reduced by the selective DP-receptor antagonist, BWA868C, and the estimated pA2 value was 7.84+/-0.16 (n=4). PGD2 and BW245C did not relax contracted human pulmonary arteries. 3. The selective IP-receptor agonists, iloprost and cicaprost, both induced relaxations in the contracted human vascular preparations. The pD2 values for iloprost were: 7.84+/-0.08 (n=6) and 8.25+/-0.06 (n=4) and for cicaprost: 8.06+/-0.12 (n=5) and 8.11+/-0.09 (n=5) in arteries and veins respectively. 4. Prostaglandin E2 (PGE2) and the EP2/EP3-receptor agonist, misoprostol, partially relaxed the contracted venous preparations and the pD2 values were: 8.10+/-0.15 (n=15) and 6.24+/-0.33 (n=3), respectively. These relaxations suggest the presence of an EP receptor in the human pulmonary veins. The contracted human pulmonary arteries did not relax when challenged with PGE2. 5. In human pulmonary venous preparations, the PGE2-induced relaxations were neither modified by treatment with TP/EP4-receptor antagonist, AH23848B (10 and 30 microM, n=6), nor by the DP/EP1/EP2-receptor antagonist, AH6809 (3 microM, n=6). 6. These data suggest that the relaxation induced by prostanoids involved DP-, IP-receptors and to a lesser extent an EP-receptor on human pulmonary venous smooth muscle. In contrast, only the IP-receptor is involved in the prostanoid induced relaxations on human pulmonary arterial smooth muscle.  (+info)

Fetal pulmonary venous flow into the left atrium relative to diastolic and systolic cardiac time intervals. (8/1323)

OBJECTIVE: To establish the nature and gestational age dependency of the pulmonary venous flow velocity pattern into the left atrium relative to systolic and diastolic phases of the cardiac cycle. DESIGN: This was a cross-sectional study of Doppler measurements of fetal pulmonary venous inflow velocities, which were correlated with simultaneous recordings of transmitral and aortic flow velocity waveforms based on an equal cardiac cycle length (+/- 5%). RESULTS: Successful recordings were obtained in 28 out of 60 (47%) normal singleton pregnancies at 20-36 weeks of gestation. Reproducibility of waveform analysis of the various phases of the cardiac cycle was satisfactory, within-patient variance ranging between 1.7% and 6.5%. A statistically significant increase (p < 0.05) in pulmonary venous time average velocity and velocity integral with advancing gestational age was established. A statistically significant increase (p < 0.05) of the pulmonary flow velocity integral was also found when related to each of the systolic and diastolic segments of the cardiac cycle, with the exception of isovolemic relaxation time. The duration of each of the diastolic and systolic segments of the cardiac cycle, as well as the pulmonary venous velocity integral expressed as a percentage of the cardiac cycle, remained constant with advancing gestational age. CONCLUSIONS: The second half of pregnancy is characterized by pulmonary venous inflow into the left atrium throughout the cardiac cycle. Pulmonary venous inflow into the left atrium occurs predominantly during the filling and ejection phases of the cardiac cycle. Absolute cardiac diastolic and systolic time intervals as well as the percentage distribution of pulmonary venous flow velocity integrals between these cardiac time intervals remain unchanged with advancing gestational age.  (+info)

The goal of the trial was to evaluate treatment with high-frequency source ablation compared with circumferential pulmonary vein isolation among patients with symptomatic drug-refractory atrial fibrillation (AF).. Contribution to the Literature: The RADAR-AF trial showed that high-frequency source ablation plus circumferential pulmonary vein isolation was not superior to circumferential pulmonary vein isolation alone.. ...
A unique case of infradiaphragmatic total anomalous pulmonary venous return in a 10-year-old girl is described. A persistent ductus arteriosus, ventricular septal defect, and large atrial septal defect were also present. Corrective surgery was performed at 10 years of age, with an excellent clinical result. The factors which permitted this unprecedented period of survival included non-obstructed drainage of the pulmonary venous blood into the inferior vena cava and a large atrial septal defect. ...
Four critically ill infants aged 3, 5, 5, and 13 months; weighing 3.7, 4.6, 5.3, and 6.5 kg, respectively; with total anomalous pulmonary venous drainage, underwent complete correction of their lesions with the utilization of surface-induced deep hypothermia. Although this series is small, we are not aware of any other consecutive series in this age group with a comparable mortality rate. Rectal temperatures of 17.5 to 20.2 C were utilized, with periods of cardiac arrest and total circulatory interruption of 32 to 41 minutes. Important aspects of the technique are surface cooling, deep ether anesthesia, intravenous low-molecular-weight dextran, induced respiratory alkalosis during cooling, and electrical pacing during resuscitation. This method works well in the infant, in contrast with perfusion techniques in which surgical mortality is excessively high.. ...
MRKH is a rare malformation (incidence 1/4000 living newborns) characterized by congenital agenesis of the uterus and vagina in women with normal ovaries, secondary sex characteristics and karyotype.1-4 The etiopathogeny lies in a lack of development of the Müllerian ducts, with the consequent alteration in the structures derived from them.1 The diagnosis is based on primary amenorrhea and the inability to allow for vaginal penetration, confirmed by ultrasound and MRI.1,4 It is divided into two types: typical or I (agenesis of the uterus and vagina) and atypical or II, associated with other malformations (renal, skeletal, digital and cardiac, as well as deafness).1-4 The associated pulmonary malformations that have been published are practically anecdotal, including a case of pulmonary hypoplasia4 and a case of total anomalous pulmonary venous drainage.3 We describe a case of partial anomalous pulmonary venous drainage where the vein of the upper left lobe drains into the innominate vein ...
Total anomalous pulmonary venous return (TAPVR) is a congenital heart defect. This means that your child is born with it. It happens as the babys heart develops during the first 8 weeks of pregnancy.
Total anomalous pulmonary venous return (TAPVR) is a congenital heart defect. This means that your child is born with it. It happens as the babys heart develops during the first 8 weeks of pregnancy.
Total anomalous pulmonary venous return is a congenital heart defect in which the vessels that bring oxygen-rich (red) blood back to the heart from the lungs are improperly connected.
We report on a male neonate born at 37 weeks' gestation with severe respiratory distress immediately after birth. The child was cyanosed, requiring high oxygen pressures and continuous positive airway pressure. The pulmonary pattern on the earliest radiographs was difficult to definitively diagnose but, with serial radiographs, it became clear that the radiographic pattern was that of pulmonary venous congestion (pulmonary oedema). However, at no stage during serial radiographs over 8 days was the cardiothoracic ratio (CTR) greater than 60%. This suggested a likely specific diagnosis - infra-cardiac totally anomalous pulmonary venous drainage (TAPVD) with obstruction. An echocardiogram confirmed an atrial septal defect (ASD) and suggested anomalous pulmonary venous drainage, but the pulmonary veins were incompletely visualised owing to acoustic window limitations. Multidetector computed tomography (CT) of the thorax confirmed infra-cardiac TAPVD with common venous channel obstruction at the
TY - JOUR. T1 - Additional linear ablation from the superior vena cava to right atrial septum after pulmonary vein isolation improves the clinical outcome in patients with paroxysmal atrial fibrillation. T2 - Prospective randomized study. AU - Kang, Ki Woon. AU - Pak, Hui Nam. AU - Park, Junbeom. AU - Park, Jin Gyu. AU - Uhm, Jae Sun. AU - Joung, Boyoung. AU - Lee, Moon Hyoung. AU - Hwang, Chun. PY - 2014/10/8. Y1 - 2014/10/8. N2 - Aims Although circumferential pulmonary vein isolation (CPVI) has been considered as the cornerstone for paroxysmal atrial fibrillation (PAF) ablation, there has been a substantial recurrence rate. We conducted a prospectively randomized study to evaluate whether additional linear ablation from the superior vena cava (SVC) to the right atrial (RA) septum (SVC-L) improves the clinical outcome. Methods and results This study enroled 200 patients with PAF (male 74.5%, 56.8±11.7 years old) randomly assigned to either the CPVI (n = 100) or CPVI + SVC-L (n = 100) groups. ...
Canine Pulmonary Vein Endothelial Cells from Creative Bioarray are isolated from Pulmonary Vein of pathogen-free laboratory Canine. Canine Pulmonary Vein Endothelial Cells are grown in T25 tissue culture flasks pre-coated with gelatin-based coating solution for 2 min and incubated in Creative Bioarray Culture Complete Growth Medium generally for 3-7 days. Cultures are then expanded. Prior to shipping, cells at passage 3 are detached from flasks and immediately cryo-preserved in vials. Each vial contains at least 1x10^6 cells per ml and are delivered frozen. The method we use to isolate endothelial cells was developed based on a combination of established and our proprietary methods ...
Anomalous pulmonary venous connection (partiel) | Surgical correction of partiel anomalous pulmonary venous connection. Cardiosurgery: Treatment in Würzburg, Germany ✈. Prices on BookingHealth.com - booking treatment online!
Anomalous pulmonary venous connection (partiel) | Surgical correction of partiel anomalous pulmonary venous connection. Cardiosurgery: Treatment in Bonn, Germany ✈. Prices on BookingHealth.com - booking treatment online!
Details of the image Total anomalous pulmonary venous return: infracardiac Modality: DSA (angiography) (Common carotid artery)
TY - JOUR. T1 - Electrophysiologic characteristics of atrial tachycardia originating from the right pulmonary veins or posterior right atrium. T2 - Double potentials obtained from the posterior wall of the right atrium can be useful to predict foci of atrial tachycardia in the right pulmonary veins or posterior right atrium. AU - Yamada, Takumi. AU - Murakami, Yoshimasa. AU - Muto, Masahiro. AU - Okada, Taro. AU - Okamoto, Mitsuhiro. AU - Toyama, Junji. AU - Yoshida, Yukihiko. AU - Tsuboi, Naoya. AU - Ito, Teruo. AU - Kondo, Takahisa. AU - Inden, Yasuya. AU - Hirai, Makoto. AU - Murohara, Toyoaki. N1 - Copyright: Copyright 2008 Elsevier B.V., All rights reserved.. PY - 2004/7. Y1 - 2004/7. N2 - Introduction: The right pulmonary veins (RPVs) and posterior wall of the right atrium (PRA) are anatomically located adjacent to each other. The aim of this study was to demonstrate the electrophysiologic characteristics of atrial tachycardia (AT) originating from the PRA or RPVs. Methods and Results: A ...
TY - JOUR. T1 - Long-term outcomes of cryoballoon-based left atrial appendage isolation in addition to pulmonary vein isolation in persistent atrial fibrillation. AU - Yorgun, Hikmet. AU - Canpolat, Ugur. AU - Oksul, Metin. AU - Sener, Yusuf Ziya. AU - Ates, Ahmet Hakan. AU - Crijns, Harry J. G. M.. AU - Aytemir, Kudret. PY - 2019/11. Y1 - 2019/11. KW - Atrial fibrillation. KW - Pulmonary vein isolation. KW - Cryoballoon. KW - Left atrial appendage isolation. KW - CATHETER ABLATION. KW - ELECTRICAL ISOLATION. KW - FLOW. U2 - 10.1093/europace/euz232. DO - 10.1093/europace/euz232. M3 - Article. C2 - 31504432. VL - 21. SP - 1653. EP - 1662. JO - EP Europace. JF - EP Europace. SN - 1099-5129. IS - 11. ER - ...
DefinitionTotal anomalous pulmonary venous return (TAPVR) is a heart disease in which the 4 veins that take blood from the lungs to the heart do not attach normally to the left atrium (left upper chamber of the heart).
This paper reports a 31-month-old child with isolated partial anomalous pulmonary venous drainage from the upper lobe of the left lung into a left ascending superior vena cava (vertical vein) with normal drainage of the other pulmonary veins.
The proportion of optimal, partial, and absent visualization, as well as the true positive rate for catheter location by RT3DTEE compared with EAMS, was analyzed using logistic regression.. No periprocedural or post-procedural complication was reported through 6 months of follow-up. In 4 patients, visualization of all PVs was possible, and 3 of 4 PVs were visualized in 11 patients. In 2 patients, no PV could be visualized. The visualization was optimal in 0.63 (95% confidence interval [CI]: 0.52 to 0.73) of the LSPV cases and in 0.77 (95% CI: 0.67 to 0.85) of the right superior pulmonary vein (RSPV) cases. One-half of the right inferior pulmonary vein (RIPV) (95% CI: 0.39 to 0.60) and 0.47 of the LIPV (95% CI: 0.35 to 0.59) cases could not be seen. No chest deformity distorting the heart was present in any case. The overall true positive rate for localization of the ablation catheter tip per vein was low: 0.38 (95% CI: 0.31 to 0.46). The result was highly dependent on the vein (logistic model p ...
BACKGROUND: Radiofrequency ablation (RFA) of paroxysmal atrial fibrillation (PAF) has focused on pulmonary vein isolation (PVI). However, despite initial positive results, significant recurrences have occurred, partly because of pulmonary vein (PV) reconnection or non-PV ectopic foci, including the superior vena cava (SVC).. OBJECTIVES: This prospective, randomized study sought to investigate the efficacy of additional SVCI combined with PVI in symptomatic PAF patients referred for ablation.. METHODS: From November 2011 to May 2013, RFA was performed remotely using a CARTO(®) 3 System in patients randomized to undergo PVI for symptomatic drug-refractory PAF, with (PVI+SVCI group) or without (PVI alone group) SVCI. PVI and SVCI were confirmed by spiral catheter recording during ablation. Procedural data, complications and freedom from atrial tachycardia (AT) and atrial fibrillation (AF) were assessed.. RESULTS: Over an 18-month period, 100 consecutive patients (56±9years; 17 women) with ...
As above, diagnosis is usually made soon after birth, and is confirmed by diagnostic imaging. Echocardiography (a form of ultrasound) will usually confirm the diagnosis. It is extremely helpful in the context of TAPVD, as the problem is associated with blood flow and liquid flow shows up quite clearly on ultrasound. The time of diagnosis will usually depend upon how quickly symptoms appear and what these are.. It may be necessary to clarify the structures further by additional imaging studies, possibly including MRI.. Once the diagnosis has been made and clarified, corrective surgical treatment will be required.. Surgery is conducted on cardiopulmonary bypass. A median sternotomy (a large cut down the centreline of the chest and through the breastbone) is made. The ribs are spread. The pulmonary veins are reconnected to the left atrium, and the sites at which they joined the supply to the right heart (the inferior and/or superior vena cavae) will be surgically closed. The atrial septal defect(s) ...
Introduction: There is a known association between Tetrology of Fallot (ToF) and partial anomalous pulmonary venous connection (PAPVC).. Hypothesis: We hypothesize that patients with ToF and PAPVC have diminished right ventricular ejection fraction (RVEF) in comparison to ToF patients without PAPVC.. Methods: We reviewed all cardiac magnetic resonance imaging (CMR) at our institution for ToF from 1/1/2004 to 5/1/2014. We included patients with repaired ToF and unrepaired PAPVC. We used sex and age matched repaired ToF patients without PAPVC as controls. We performed comparative statistics to find differences between the groups.. Results: There were 9 patients with repaired ToF and unrepaired PAPVC and 18 controls. In all 9 cases, the PAPVC was not detected on preoperative echocardiography. There were no significant differences in surgical course and body surface area between the two groups (Table 1). Repaired ToF patients with unrepaired PAPVC showed significantly higher indexed RVEDV, RV to LV ...
Learn more about Total Anomalous Pulmonary Venous Connection -- Child at Medical City Dallas DefinitionCausesRisk FactorsSymptomsDiagnosisTreatmentPreventionrevision ...
Learn more about Total Anomalous Pulmonary Venous Connection -- Child at TriStar Centennial DefinitionCausesRisk FactorsSymptomsDiagnosisTreatmentPreventionrevision ...
What does papvd stand for? Hop on to get the meaning of papvd. The Acronym /Abbreviation/Slang papvd means partial anomalous pulmonary venous drainage. by AcronymAndSlang.com
Introduction: Pulmonary veins isolation (PVI) is useful method in patients (pts) with mitral valve disease (MVD) and chronic atrial fibrillation (AF) during prosthetic valve implantation. The aim of the study: To evaluate e.ectiveness of PVI in the treatment of AF in pt with MVD during valve implantation. Material and methods: 45 pts (mean age 55 yrs) with AF were operated on for MVD.RF ablation around the pulmonary veins, a lesion between them and to the mitral annulus were performed. There were 44 prostheses implanted, 1 case of mitral valve annuloplasty, associated with tricuspid valve repair (5 pts), aorto-coronary bypass procedure (2 pts), ASD II closure (1 pt). Results: SR was achieved in 2 (44,5%) pts, 21 (46,5%)pts were in AF, 4 (9%) pts needed pacing. No correlation between SR restoration and preoperative echocardiographic parameters, age, gender, NYHA functional class were found. In long-term follow-up 1 pt have reversed AF to SR spontaneously. There were 6 cases of paroxysmal AF,1 pt ...
The patient with complex congenital heart disease, severe pulmonary outflow obstruction, and visceral heterotaxia, may have silent obstruction of the pulmonary venous return. Severe reduction of pulmonary blood flow secondary to pulmonary stenosis or atresia in such patients may prevent the usual radiographic appearance of pulmonary oedema. If such obstructed anomalous pulmonary venous connections are not diagnosed before operation, construction of a systemic to pulmonary artery anastomosis will unmask the obstruction, usually resulting in pulmonary oedema and death. We have recently challenged a neonate with dextrocardia, vesceral heterotaxia, presumed asplenia, and complex congenital heart disease including pulmonary atresia, with an infusion of prostaglandin E1 to increase pulmonary blood flow via his ductus arteriosus. This resulted in severe pulmonary oedema which partially resolved after the infusion was discontinued. This was interpreted as consistent with obstructed total anomalous ...
BACKGROUND: Both segmental ostial and circumferential extraostial pulmonary vein (PV) isolation have been proven effective in the treatment of atrial fibrillation (AF). However, the recurrence of AF and PV conduction after the 2 ablation strategies h
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Centers RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.. ...
Total anormal pulmoner ven z d n (TAPVD) anomalisi nadir ve o unlukla izole bir durumdur, b t n konjenital kalp hastal klar n n %1-3 n olu turur. Bildi imiz kadar yla, TAPVD anomalisi ile ili kili portal ven trombozu (PVT) literat rde daha nce yay nlanmam t r. Burada ba ar ile tedavi edilen infrakardiak tipte TAPVD anomalisine e lik eden PVT li bir yenido an olgusu literat r bilgileri nda sunulmaktad r. Tromboz progresyonunu engellemek i in yenido an d nemi boyunca antikoag lan tedaviler uygulanm t r. PVT, TAPVD anomalisi olan ve tam d zeltici a k kalp onar m yap lan hastalarda ak lda tutulmal d r. Her bir yenido an i in tedavi, risk ve yarar g z n nde tutularak bireyselle tirilmelidir.. Anahtar Kelimeler: Total pulmoner ven z d n anomalisi, Portal ven trombozu, Antikoag lan tedavi, D k molek ler a rl kl ...
Total anormal pulmoner ven z d n (TAPVD) anomalisi nadir ve o unlukla izole bir durumdur, b t n konjenital kalp hastal klar n n %1-3 n olu turur. Bildi imiz kadar yla, TAPVD anomalisi ile ili kili portal ven trombozu (PVT) literat rde daha nce yay nlanmam t r. Burada ba ar ile tedavi edilen infrakardiak tipte TAPVD anomalisine e lik eden PVT li bir yenido an olgusu literat r bilgileri nda sunulmaktad r. Tromboz progresyonunu engellemek i in yenido an d nemi boyunca antikoag lan tedaviler uygulanm t r. PVT, TAPVD anomalisi olan ve tam d zeltici a k kalp onar m yap lan hastalarda ak lda tutulmal d r. Her bir yenido an i in tedavi, risk ve yarar g z n nde tutularak bireyselle tirilmelidir.. Anahtar Kelimeler: Total pulmoner ven z d n anomalisi, Portal ven trombozu, Antikoag lan tedavi, D k molek ler a rl kl ...
We are reporting a case of a 5-year-old asymptomatic boy who had grade 3 ejection systolic murmur in pulmonary area on cardiac examination. 2D echocardiography showed dilated right atrium (RA) and right ventricle (RV) suggesting increased pulmonary to systemic flow. Suprasternal echocardiographic view raised doubt of vertical vein. There was no visible atrial septic defect (ASD) or significant pulmonary arterial hypertension. Partial anomalous pulmonary venous connection (PAPVC) was suspected without an associated ASD. This pulmonary venous anomaly is extremely rare and difficult to diagnose. Clinically, PAPVC is often asymptomatic and tends to go unnoticed until adulthood, and usually diagnosed during investigation of another illness.1 Left untreated, long-standing PAPVC predisposes the patient to right-sided volume overload, tricuspid regurgitation, arrhythmias, pulmonary hypertension, irreversible pulmonary vascular disease, right ventricular dysfunction/ failure. The development of symptoms ...
Introduction: Esophageal injury is a potential complication after catheter ablation of the posterior left atrium (LA). Therefore, we describe a new approach for complete isolation of the posterior LA including all pulmonary veins (PVs) without vertical lesions along the esophageal aspect of the posterior LA, namely Box isolation.. Methods and Results: Ninety-one patients with paroxysmal atrial fibrillation (AF) underwent Box isolation. Continuous lesions at the anterior portions of the ipsilateral PVs were initially created and then linear ablation of LA roof and bottom was performed to isolate the posterior LA. Continuous vertical lesions at the posterior portions of PVs along the esophageal aspect of the posterior LA were not created. Ablation was performed with an 8-mm-tip catheter. The endpoint was the absence of electrical activity and the inability to pace the posterior LA and all PVs in sinus rhythm. Complete isolation of the posterior LA was achieved in 82 patients (90%). Ablation ...
Multiple factors have been found to be associated with shortterm and longterm outcomes of periviable births in addition to gestational age at birth table 1. View pdf annual return made up to 30 july 2015 with full list of shareholders. The preterm rate decreased during the study period, from 8. View download pdf file, link opens in new window 23 apr 2019.. After birth, the ductus venosus becomes an important route connecting the pulmonary and systemic venous systems for survival in infracardiac total anomalous pulmonary venous connection. Annual return made up to 30 july 2015 with full list of shareholders statement of capital on 20150925. We present two rare cases of aberrant coronary anatomy. To the authors knowledge, this is only the second case of this. The fetus has all the recognizable external characteristics of a human being. Total anomalous pulmonary venous return tapvr pronounced tohtl uhnomuhluhs puhlmuhneree veenuhs riturn, or connection tapvc is a birth defect of the heart in which ...
This guidance has been updated and replaced by percutaneous endoscopic laser balloon pulmonary vein isolation for atrial fibrillation
This study aims to examine the long-term success rate of catheter ablation in non-paroxysmal atrial fibrillation patients using different ablation strateg
Total anomalous pulmonary venous return (TAPVR) is a congenital heart defect. This means that your child is born with it. It happens as the babys heart develops during the first 8 weeks of pregnancy. In this condition, the 4 blood vessels (pulmonary veins) that carry oxygen-rich (red) blood to the heart from the lungs arent connected correctly. Normally these blood vessels should be connected to left upper chamber (atrium) of the heart. Instead theyre connected somewhere else.. There are different types of TAPVR. The type your child has depends on where the pulmonary veins are connected.. This condition causes oxygen-rich blood from the lungs to mix with oxygen-poor (blue) blood from the body. This keeps oxygen-rich blood from being carried all over the body. Your child cant live with TAPVR long-term. He or she needs oxygen-rich blood all over the body.. Other heart defects often occur with TAPVR. They actually help infants have enough oxygen in their blood until they can have surgery. These ...
Haissaguerre and colleagues (8,9) reported successful termination of AF in humans by radiofrequency catheter ablation at focal sites within the atrium. These sites were identified by double potentials around the pulmonary veins, especially near the left superior pulmonary vein (LSPV) (4). The left superior pulmonary vein is adjacent to the LOM. Rapid focal discharges from those sites trigger AF. These studies support a proposal made by Prinzmetal et al. (10) in 1950, who showed that a focal source of activation could explain the mechanisms of atrial arrhythmias, including AF.. The area near the LSPV or the LOM may serve as a source of AF, but the mechanisms by which rapid activations occur in that region remain unclear. Based on the anatomical data of this study, there are at least two possibilities. Because abundant sympathetic nerve fibers co-localize with muscle bundles within the LOM, it is possible that sympathetic activity may bring these muscle bundles to threshold by increased ...
A female neonate, born at term, presented with complex cardiac anatomy dominated by right isomerism and infra-diaphragmatic totally anomalous pulmonary venous connection. Surgical repair was performed using circulatory arrest under deep hypothermia.
The visualization of heart rhythm disturbance and atrial fibrillation therapy allows the optimization of new cardiac catheter ablations. With the simulation software CST (Computer Simulation Technology, Darmstadt) electromagnetic and thermal simulations can be carried out to analyze and optimize different heart rhythm disturbance and cardiac catheters for pulmonary vein isolation. Another form of visualization is provided by haptic, three-dimensional print models. These models can be produced using an additive manufacturing method, such as a 3d printer. The aim of the study was to produce a 3d print of the Offenburg heart rhythm model with a representation of an atrial fibrillation ablation procedure to improve the visualization of simulation of cardiac catheter ablation. The basis of 3d printing was the Offenburg heart rhythm model and the associated simulation of cryoablation of the pulmonary vein. The thermal simulation shows the pulmonary vein isolation of the left inferior pulmonary vein ...
The visualization of heart rhythm disturbance and atrial fibrillation therapy allow the optimization of new cardiac catheter ablations. With the simulation software CST (Computer Simulation Technology, Darmstadt) electromagnetic and thermal simulations can be carried out to analyze and optimize different heart rhythm disturbance and cardiac catheters for pulmonary vein isolation. Another form of visualization is provided by haptic, three-dimensional print models. These models can be produced using an additive manufacturing method, such as a 3D printer. The aim of the study was to produce a 3D print of the Offenburg heart rhythm model with a representation of an atrial fibrillation ablation procedure to improve the visualization of simulation of cardiac catheter ablation. The basis of 3D printing was the Offenburg heart rhythm model and the associated simulation of cryoablation of the pulmonary vein. The thermal simulation shows the pulmonary vein isolation of the left inferior pulmonary vein ...
Vol 47: Surgery for Partial Anomalous Pulmonary Venous Connections: Modification of the Warden Procedure with a Right Atrial Appendage Flap.. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
This chapster discusses anomalies of systemic venous drainage and anomalies of pulmonary venous drainage. It discusses superior vena cava (SVC) anomalies, inferior vena cava (IVC), total anomalous pulmonary venous drainage (TAPVD), partial anomalous pulmonary venous drainage (PAPVD), and scimitar syndrome.
AIMS: To evaluate the effects of pulmonary vein isolation (PVI) in terms of feasibility, safety and success rate on a midterm follow-up period in septuagenarians undergoing ablation with the Arctic Front Cryoballoon for atrial fibrillation (AF). METHODS AND RESULTS: We prospectively enrolled 21 patients aged 70 years or older (14 male; age 73 +/- 2.5 years) elected to circumferential PVI with the 28mm cryoballoon for symptomatic drug resistant paroxysmal AF. A total number of 82 pulmonary veins (PV) were evidenced. Successful isolation could be obtained in all 82 (100%) PV ostia at the end of procedure. No major complication occurred during procedure. At a mean follow-up of 11.5 +/- 4.7 months following ablation, 62% of patients did not present recurrence of atrial arrhythmias. CONCLUSION: Cryoballoon ablation may be feasible and safe in older patients. Moreover a large proportion of the latter did not present AF recurrence during follow-up ...
Aims For catheter ablation of atrial fibrillation (AF), proper catheter positioning is crucial and depends on knowledge of pulmonary vein (PV) anatomy. The aim of this study was to assess PV spatial orientation and ostial shape by contrast-enhanced magnetic resonance angiography (CE-MRA).. Methods and results In 30 consecutive AF patients, CE-MRA was performed prior to ostial ablation. Using a centre-line technique, the PV ostium was defined perpendicular to this centre-line. Minimal and maximal ostial diameters, ostial perimeter, and angles in the anatomical frontal and transverse planes were measured. Twenty-one patients had four separate PVs. In four patients, there was a distinct right-middle PV and in five a common left common PV was found. Left-sided PV ostia were smaller and more elliptical than right-sided PVs. In the transverse plane, the ostia of both superior PVs were directed anteriorly (LS −15±13°, RS −13±11°) and both inferior PV ostia were directed posteriorly (LI ...
Kitkungvan D et al.. J Am Coll Cardiol Img. 2016;():. doi:10.1016/j.jcmg.2015.11.029 Link: https://imaging.onlinejacc.org/article.aspx?articleid=2524096. Objectives The goal of this study was to evaluate the diagnostic performance of a comprehensive, multicomponent cardiac magnetic resonance (CMR) study for assessment of left atrial (LA) and left atrial appendage (LAA) thrombus.. Background Pre-operative evaluation for pulmonary vein isolation (PVI) typically requires tomographic imaging to define pulmonary venous anatomy and transesophageal echocardiogram (TEE) to assess for the presence of LA/LAA thrombus. CMR is increasingly being used to define pulmonary venous anatomy before PVI. Limited data are available on the utility of a multicomponent CMR protocol in assessing LA/LAA thrombus.. Methods We studied patients who underwent multicomponent CMR for evaluation of pulmonary venous anatomy before PVI and underwent TEE within 7 days. LA and LAA thrombi were evaluated by using CMR as follows: 1) ...
Partial anomalous pulmonary venous return (PAPVR) is a congenital anomaly in which some of the pulmonary veins drain erroneously into the superior vena cava (SVC) or directly into the right atrium (RA). We present four cases of PAPVR presenting in adults. We discussed various presentations, diagnostic approaches and challenges in the management of these patients. Our first case had anomalous drainage from the right upper lobe of lung to SVC and was managed medically with riociguat and ambrisentan. The second patient had an unsuccessful attempt at repair of the anomalous vein. Our other two patients had right upper lobe veins draining into SVC. One of them had a successful surgical repair whereas the other patient declined surgery and is being monitored. In PAPVR patients, the decision for surgical repair depends on symptoms, shunt fraction, recurrent pulmonary infections, and concurrent indication for cardiac surgery.
Learn more about Anomalous Pulmonary Venous Return - TAPVR or PAPVR symptoms, diagnosis, and treatments from experts at Boston Childrens, ranked best Childrens Hospital by US News.
TY - JOUR. T1 - Elimination of triggers without an additional substrate modification is not sufficient in patients with persistent atrial fibrillation. AU - Park, Junbeom. AU - Pak, Hui Nam. PY - 2015/2/1. Y1 - 2015/2/1. N2 - Atrial fibrillation (AF) is a multifactorial disease with complex pathophysiology. Although restoring sinus rhythm delays the progression of atrial remodeling, non-pharmacologic intervention, such as radiofrequency catheter ablation (RFCA), should be done based on the background pathophysiology of the disease. While circumferential pulmonary vein isolation (CPVI) has been known to be the cornerstone of AF catheter ablation, a clinical recurrence rate after CPVI is high in patients with persistent AF (PeAF). Step-wise linear ablation, complex fractionate atrial electrogram (CFAE)-guided ablation, rotor ablation, ganglionate plexus ablation, and left atrial appendage isolation may improve the ablation success rate after CPVI. But, there are still substantial AF recurrences ...
Pulmonary vein thrombosis (PVT) and cerebral infarction are rare but critical complications after video-assisted thoracic surgery (VATS). We experienced two cases of massive middle cerebral artery infarction after VATS for the left upper lobe. Although the precise source of their embolus was never identified, both cases were clinically suspected PVT. Unfortunately, case 2 died because of progressive cerebral herniation. We decided to perform contrast-enhanced computed tomography routinely after VATS for the left upper lobectomy (VATS-LUL) after these cases. Case 3, a 79-year-old female patient, underwent VATS-LUL for lung cancer. She developed PVT in the stump of the left upper pulmonary vein on postoperative day 4. Anti-coagulation therapy was begun immediately and continued for 3 months. She was free of complications 7 months after the operation. PVT and cerebral infarction may occur after VATS-LUL. Appropriate postoperative management is required to recognize PVT and to prevent life-threatening
Ventricular septal defect (VSD), Atrial septal defect (ASD), Patent ductus arteriosus (PDA), Mitral insufficiency (MI), Anterior mitral valve cleft (AMVC), Mitral valve cleft (MVC), Tricuspid insufficiency (TI), Aortic coarctation (AC), Bicuspid aortic valve (BAV), Mitral valve prolapsed (MVP), Cor triatriatum (CTA), Partial anomalous pulmonary venous connection (PAPVC), Total anomalous pulmonary venous connection (TAPVC) ...
A diagnosis of congenital unilateral pulmonary vein atresia (CUPVA) was made. The patient experienced shortness of breath only after intense exercise and there was no pulmonary infection or recurrent haemoptysis. She was closely monitored, and light-intensity physical activity was permitted.. Unilateral diffuse pulmonary parenchymal lesions are clinically rare. The causes of these lesions include focal chronic inflammatory diseases, such as bronchiectasis and gastro-oesophageal reflux, radiation pneumonitis and mechanical ventilation of a unilateral lung.1 Unilateral diffuse pulmonary parenchymal lesions have also been reported in diseases, such as Sjogrens syndrome and systemic sclerosis.1 Additional rare causes of unilateral lesions include pulmonary circulatory diseases, such as proximal PA blockage (eg, PA sarcoma), venous thrombosis and unilateral pulmonary vein stenosis due to mediastinal fibrosis. In adult patients with CUPVA, long-term pulmonary circulation abnormalities can cause ...
CONCLUSIONS Circumferential pulmonary vein ablation is more successful than ADT for prevention of PAF with few complications. Atrial fibrillation ablation warrants consideration in selected patientsin whom ADT had already failed and maintenance of sinus rhythm is desired. (A ControlledRandomized Trial of CPVA Versus Antiarrhythmic Drug Therapy in for Paroxysmal AF:APAF/01; NCT00340314) (J Am Coll Cardiol 2006;48: 2340 -7) 2006 by the American College of Cardiology Foundation Currently, antiarrhythmic drug therapy (ADT) is consid- study that confined the analysis to untreated patients with ered as first line therapy to prevent recurrent and symptom- an initial history of paroxysmal AF (PAF), who represent atic atrial fibrillation (AF), but antiarrhythmic drugs only a minority of the wide AF population. In another (AADs) are frequently ineffective and may be associated randomized study, Stabile et al. reported that ablation with serious adverse effects Atrial fibrillation ablation therapy combined ...
The target group of patients are subjects ages ,65 years, with paroxysmal or persistent atrial fibrillation, who have out of range hypertension (systolic ,140 mmHg or ,130/80 mmHg in diabetics and patients with chronic renal disease) or signs of sympathetic overdrive. Patients should use at least 2 anti-hypertensives or should be intolerant for antihypertensive medication.. Atrial fibrillation terminology: If atrial fibrillation recurs more than once but terminates spontaneously within seven days, the term paroxysmal AF is used. This is also used when the episode is less than 48 hours in duration and is terminated with electrical or pharmacological cardioversion. Persistent AF is defined as recurrent AF that is sustained for more than seven days. A patient that is electrically or pharmacologically cardioverted after more than two days is also diagnosed with persistent AF.. After the exclusion of apparent secondary causes of hypertension, patients will be randomized to one of the following ...
Congenital pulmonary venolobar syndrome is a group of congenital malformations of the thorax. Major components are hypogenetic lung, partial anomalous pulmonary venous return, pulmonary sequestration, absence of the pulmonary artery, systemic arterialisation of the lung without sequestration, absence or interruption of the inferior vena cava and duplication of the diaphragm [1]. Hypogenetic lung and partial anomalous pulmonary venous return (PAPVR) are the most common of this group, both of which come together in rare cases. Hypogenetic lung may occur not only on the right side, but also in the left pulmonary Lobe [2-4]. Right pulmonary hypoplasia could explain dextroposition of the heart and the mediastinum shift. PAPVR is always termed scimitar syndrome, that is, the anomalous pulmonary venous return of all or most of the right lung to the inferior vena cava just below or above the right hemi-diaphragm creates the image of a Turkish sword on the chest X-radiography [5]. Scimitar syndrome is ...
Asymmetric ventricles , with left ventricle smaller than right is seen occasionally. The following conditions should be thought of : 1. Co-arctation of Aorta 2. T.A.P.V.D. - Total Anomalous Pulmonary Venous Drainage ( or Connections ) 3.Persistent Left Superior Vena Cava 4.Dilated Coronary Sinus and rarely due to 5. Restricted Ductal Flow due to kinking…
Asymmetric ventricles , with left ventricle smaller than right is seen occasionally. The following conditions should be thought of : 1. Co-arctation of Aorta 2. T.A.P.V.D. - Total Anomalous Pulmonary Venous Drainage ( or Connections ) 3.Persistent Left Superior Vena Cava 4.Dilated Coronary Sinus and rarely due to 5. Restricted Ductal Flow due to kinking…
Disorders considered include patent ductus arteriosus, coarctation of the thoracic aorta, pulmonary stenosis, aortic stenosis, atrial septal defect, ventricular septal defect, tetralogy of Fallot, total anomalous pulmonary venous return, transposition of the great vessels, tricuspid and pulmonary atresia, truncus arteriosus, anomalies of coronary arteries, and vascular ring of the aorta. Text briefly considers case history, anatomy, embryology, and diagnosis. Most of the text is given to indications for operation, to surgical methods and complications, and to results. Generously illustrated with drawings of surgical procedure, less generously with plain and angiocardiographic roentgenograms. No electrocardiograms. Inadequate for the medical cardiologist as reference ...
SEE PAGE 14 D urable isolation following pulmonary vein (PV) ablation may not be necessary for effective suppression of atrial fibrillation (AF) in certain patients with AF. However, most patients are thought to benefit from durable PV isolation, because PV reconnection seems to by and large underlie the mechanism of AF following catheter ablation (1). A recent study found that among patients undergoing $3 radiofrequency (RF) catheter ablations for AF, presence of durable isolation in all PVs was only noted in w8% (2). It has been shown that in most cases, PV conduction recovery occurs rapidly, with as many as one-third of targeted PVs and four-fifths of those that recover electrical conduction reconnecting in as little as 30 min (3). Moreover, there still remains the possibility that conduction block may be observed despite presence of a conduction gap. Ranjan et al. (4) created a 2-dimensional model of the cardiac syncytium simulating RF ablation lines with gaps of varying lengths, conductivity, and
The study protocol was carried out within a 30-min waiting period after successful ablation of the AP, which is routinely performed in our institution for the detection of early conduction recurrences.. The protocol included the following steps: 1) ERP assessment of the PVs, the LA, and the RA, respectively; 2) induction and sustaining AF for 15 min (including immediate reinduction in case of spontaneous termination and cardioversion if the arrhythmia did not terminate spontaneously after 15 min); and 3) reassessment of the ERPs of the PVs, the RA, and the LA immediately after AF termination.. The protocol discussed in the preceding text was realized as follows: first, the ERPs of all PVs, the left atrial appendage (LAA), and the right atrial appendage (RAA) were determined by programmed stimulation using a basic drive cycle length of 440 ms. Pulmonary vein stimulation was performed as described previously in detail (8). Briefly, a circumferential decapolar PV mapping catheter (Lasso, Biosense ...
Iatrogenic ATs have been reported after either surgical or catheter ablation of AF.7-14 After ablation of paroxysmal AF (wherein the initial ablation procedure is predominantly directed to PV isolation), the mechanism of AT is virtually always focal, originating from reconnected PVs.10 However, ablation of persistent AF typically involves LA, and sometimes RA, substrate ablation (linear lesions and ablation of sites of complex fractionated electrograms) beyond simple PV isolation. Here, we report a novel approach to mapping these postablation scar-related ATs by using a combination of activation mapping with a multielectrode array mapping catheter and targeted entrainment mapping.. The mechanisms of postablation ATs depend to a large extent on the ablation performed in the index procedure. A segmental approach to PV isolation, confirmed with a circular mapping catheter, resulted in most postablation ATs being of a focal mechanism from reconnected PV ostia.10,12 Anatomic approaches have been ...
View details of top pulmonary arteriovenous fistula hospitals in New Delhi. Get guidance from medical experts to select best pulmonary arteriovenous fistula hospital in New Delhi
Pulmonary arteriovenous fistulas.: Previously reported from our institution has been a series of 63 patients with pulmonary arteriovenous fistula who were seen
PAFIB - Paroxysmal atrial fibrillation. Looking for abbreviations of PAFIB? It is Paroxysmal atrial fibrillation. Paroxysmal atrial fibrillation listed as PAFIB
This study is a prospective, multicenter, randomized (2:1) controlled study to evaluate the safety and effectiveness of the LARIAT System to percutaneously isolate and ligate the Left Atrial Appendage from the left atrium as an adjunct to planned pulmonary vein isolation (PVI) catheter ablation in the treatment of subjects with symptomatic persistent or longstanding persistent atrial fibrillation.. This study will be conducted in two stages:. ...
Thanks to the TRACERx nationwide team effort, including adoption of pulmonary vein (PV) blood sampling at surgery, we enriched and enumerated epithelial cells from the PV of 100 patients. These putative tumour cells were found in 48/100 patients and their prevalence was associated with poorer disease-free survival, confirming our pilot data. Whilst analysis in a larger cohort is required to validate this finding, the implication is that epithelial cell number in the PV at surgery could identify those patients at higher risk of relapse who need more frequent monitoring with serial ctDNA analysis4. We also discovered across the patient cohort that the majority of epithelial cells in the PV blood harboured few or no genomic aberrations. This mixed population of bona fide CTCs with cancer genomes and apparently normal epithelial cells in the bloodstream may have diluted the strength of lung cancer recurrence prediction. Further studies using more sensitive CTC technologies, including detection of ...
Congenital Pulmonary Veins Atresia or Stenosis: Read more about Symptoms, Diagnosis, Treatment, Complications, Causes and Prognosis.
Have you ever published using Cynomolgus Monkey Pulmonary Vein Smooth Muscle Cells? Submit your publication and earn rewards points which can be used for merchandise & discounts. Please include the product used, your name, email, publication title, author(s), PUBMED ID, Journal and issue in your submission ...
While airway endoscopy and bronchoalveolar lavage are the methodsof choice for diagnosing exercise-induced pulmonary hemorrhage (EIPH), these techniques do not allow accurate evaluation of the severity of bleeding. EIPH pathology is characterized by occlusive remodeling of pulmonary veins. Affected …
Editors Note: This is a series of extremely cogent presentations delivered by ISECT (Indian Society of Extracorporeal Circulation). The source article can be viewed here- http://www.isect.org/ASD.pdf. Right Superior Vena Cava Draining to Roof of Left Atrium The preoperative diagnosis in this patient was sinus venosus ASD with possible partial anomalous pulmonary venous connection. = - […]. ...
Author Response.pdf. Reviewer 2 Report. This paper tests the hypothesis that the Kolmogorov complexity of a single atrial bipolar electrogram recorded during AF within the coronary sinus at the beginning of the catheter ablation may predict AF termination directly after pulmonary vein isolation (PVI). Results show significant differences in Kolmogorov complexity between patients with AF termination directly after PVI compared to patients undergoing additional ablation. Therefore, authors affirm that Kolmogorov complexity of electrograms measured at baseline before PVI can predict self-termination of AF directly after PVI. Overall, I believe that the goal of this study is very interesting and the tools used are appropriate. However, I have several major comments regarding the paper:. Authors talk about complexity measures, however they are different types of measurements and they do not measure complexity. Additional 30 second electrograms recorded 30 prior to AF termination were analyzed as the ...
The contrast enhancement of the heart and lung after intravenous injection follows certain anatomical rules. First the right atrium (video 1, RA), right ventricle (video 1, RV), pulmonary artery, lung parenchyma (video 2, LUNG) and pulmonary veins are enhancing followed by the left atrium (video 1, LA), left ventricle (video 1, LV), coronary arteries & myocardium (video 1, MYO), aorta (video 2, AORTA), bronchial arteries (BA) and the systemic vessels (video 2 including hepatic arteries, portal venous system and liver parenchyma). In other words the venous blood from the heart to the lung parenchyma is featured, which is mandatory for the gaseous exchange. Thereafter, the systemic arterial vascular system is enhancing. In the lung the analysis of the dual blood supply allows the differentiation of lung emboli (pulmonary artery vascular supply followed by pulmonary vein washout) and neoplasia (bronchial artery vascular supply followed by bronchial vein washout). In the liver the dual blood supply ...
A free platform for explaining your research in plain language, and managing how you communicate around it - so you can understand how best to increase its impact.
Thomson, Sereen Rose and Ommurugan, Balaji and Patil, Navin (2017) Ceftriaxone induced hypersensitivity reactions following intradermal skin test: case series. Journal of Clinical and Diagnostic Research, 11 (10). FR01-FR04. ISSN 0973-709X Agarwal, Saurabh and Balaji, O and Priya, Amita and Patil, Navin (2017) Warfarin-induced alopecia: A rare case report. Asian Journal of Pharmaceutical and Clinical Research, 10 (10). pp. 17-18. ISSN 0974-2441 Balaji, O and Bairy, KL and Priya, Amita and Thomas, Joseph and Patil, Navin (2017) A fatal case of bilateral interstitial pneumonia (blip): Interferon alpha 2 a induced. Asian Journal of Pharmaceutical and Clinical Research, 10 (10). pp. 15-16. ISSN 0974-2441 Rao, Karthik N and Patil, Navin and Balaji, O and Kotian, Rahul P (2017) Hypertrophic cardiomyopathy with partial anomalous pulmonary venous connection and atrial septal defect: A rare presentation. Asian Journal of Pharmaceutical and Clinical Research, 10 (8). pp. 5-7. ISSN 0974-2441 Anuhya, TV and ...
BACKGROUND Even with a low energy setting, radiofrequency energy applications on the left atrial (LA) posterior wall may cause excessive transmural injury (ETI) during catheter ablation of atrial fibrillation (AF). OBJECTIVE The purpose of this study was to clarify the prevalence and characteristics of ETI. METHODS This study included 104 patients with AF who underwent extensive encircling pulmonary vein isolation (EEPVI) followed by an endoscopic examination (≤48 hours after EEPVI). EEPVI was performed under conscious sedation, and the ablation settings at the LA posterior wall were a maximum energy of 20 to 25 W and duration of ≤30 seconds. The ETI was defined as any injury that resulted from EEPVI, including esophageal damage or periesophageal nerve injury. RESULTS ETIs were found in 10 (9.6%) patients and were all asymptomatic; esophageal damage in 4 patients and periesophageal nerve injury in the remaining 6. All patients with ETI were below normal weight (body mass index [BMI] | 24.9 kg
0108] While there may be some coverage on the sidewall surfaces (not shown) of the trenches of the electrical isolation segments 116a-116h, there is not continuous coverage across the electrical isolation segments 116a-116h. (In some other implementations, some amount of continuous coverage that is insufficient to carry a current or otherwise provide an electrical connection may be present.) FIGS. 13A and 13B show examples of schematic illustrations of an electrical isolation trench at various stages in a manufacturing process. FIG. 13A shows an example of schematic illustrations of top views of the electrical isolation segment 116a prior to and after metallization. A top view 261 of the electrical isolation segment 116a prior to metallization is shown. The electrical isolation segment 116a separates the support structure segments 102a and 102b, forming a trench between the support structure segments 102a and 102b. The trench has a bottom surface 258 and may be formed, for example, during block ...
0059] Now referring to FIG. 17b, an exemplary method of use of the device shown in FIG. 17a is illustrated. In particular, the catheter 34 may be positioned and subsequently operated to thermally treat a targeted tissue area, such as an ostium 170 of a pulmonary vein in the atrium of the heart. For example, the catheter 34 may be delivered to or otherwise positioned within an atrium of a heart intravascularly or otherwise as described herein. The catheter 34 may be positioned such that at least a portion of the second balloon 152 is disposed within a pulmonary vein or other vascular conduit. The second balloon 152 may then be expanded or otherwise inflated to substantially occlude the pulmonary vein or other vessel in which it resides. The expansion of the second balloon 152 may be achieved by delivering a fluid, such as a non-cryogenic fluid, saline, or the like, from the second fluid source 162b through the second inflation lumen 154 and into the interior of the balloon 152. Further, as there ...
Background The incidence and predictors of atrial fibrillation (AF) progression are currently not well defined, and clinical AF progression partly overlaps with rhythm control interventions (RCIs). Methods and Results We assessed AF type and intercurrent RCIs during yearly follow-ups in 2869 prospectively followed patients with paroxysmal or persistent AF. Clinical AF progression was defined as progression from paroxysmal to nonparoxysmal or from persistent to permanent AF. An RCI was defined as pulmonary vein isolation, electrical cardioversion, or new treatment with amiodarone. During a median follow-up of 3 years, the incidence of clinical AF progression was 5.2 per 100 patient-years, and 10.9 per 100 patient-years for any RCI. Significant predictors for AF progression were body mass index (hazard ratio [HR], 1.03; 95% CI, 1.01-1.05), heart rate (HR per 5 beats/min increase, 1.05; 95% CI, 1.02-1.08), age (HR per 5-year increase 1.19; 95% CI, 1.13-1.27), systolic blood pressure (HR per 5 mm Hg ...
Baroreceptors in low pressure receptor zones (mainly in the venae cavae and the pulmonary veins, and in the atria) result in ... Pulmonary pressure[edit]. Main article: Pulmonary artery pressure. Normally, the pressure in the pulmonary artery is about 15 ... Venous pressure is the vascular pressure in a vein or in the atria of the heart. It is much less than arterial pressure, with ... What Is Pulmonary Hypertension? From Diseases and Conditions Index (DCI). National Heart, Lung, and Blood Institute. Last ...
... right and left pulmonary veins,[e] great cardiac vein, middle cardiac vein, small cardiac vein, anterior cardiac veins[f]. ... The pulmonary trunk branches into the left and right pulmonary arteries that carry the blood to each lung. The pulmonary valve ... pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... In the left heart, oxygenated blood is returned to the left atrium via the pulmonary veins. It is then pumped into the left ...
Another characteristic histologic finding is the presence of a pulmonary vein located next to a pulmonary artery and bronchus ... The characteristic findings of misplaced pulmonary veins adjacent to pulmonary arteries, and abnormal alveolar and capillary ... misplaced pulmonary veins adjacent to pulmonary arteries, abnormal alveoli with thickened interstitia and abnormal capillary ... "Nitric oxide inhalation therapy for an infant with persistent pulmonary hypertension caused by misalignment of pulmonary veins ...
The collapse of the pulmonary veins. J.L. Duomarco; R. Rimini; C.E. Giambruno; Acta Physiologica Latino Americana, 1957, VII, p ... The notion that veins do not behave as rigid tubes but as eminently collapsible tubes suffering from the process of collapse in ... Energy and hydraulic gradients along systemic veins J.l. Duomarco R. Rimini The American Journal of Physiology Vol 178. No. 2 ... as are the cava veins..." "La Regulación del Retorno Venoso". Conferencia por José L. Duomarco en la Mesa Redonda sobre " ...
These anticoagulants are used to treat patients with deep-vein thrombosis (DVT), pulmonary embolism (PE) and to prevent emboli ... Di Nisio, Marcello; van Es, Nick; Büller, Harry R (December 2016). "Deep vein thrombosis and pulmonary embolism". The Lancet. ... can lead to pulmonary embolism Ischemic stroke Hypercoagulable states (e.g., Factor V Leiden) - can lead to deep vein ... "A meta-analysis of bed rest versus early ambulation in the management of pulmonary embolism, deep vein thrombosis, or both". ...
van Beek, Edwin J. R.; Büller, Harry R.; Oudkerk, Matthijs (2009). Deep Vein Thrombosis and Pulmonary Embolism. John Wiley and ... Peabody's sign is a clinical sign which may be found in patients with deep vein thrombosis (DVT). The sign is positive when ...
A multiple anomaly of the human heart and pulmonary veins. Anat. Record 78(3): 383-388, 1940. ... Lambertsen CJ, Clark JK (December 1949). "The pulmonary oxygen diffusion coefficient". Am. J. Med. Sci. 218 (6): 715. PMID ... Wright WB, Fisher AB, Hendricks PL, Brody JS, Lambertsen CJ (July 1973). "Pulmonary function studies during a 14-day continuous ... "Pulmonary function in men after oxygen breathing at 3.0 ATA for 3.5 h". J. Appl. Physiol. 71 (3): 878-85. PMID 1757324 ...
Schematic view of a pulmonary vein ablation. The catheter reaches (from below) through the inferior vena cava, the right atrium ... The latter are connecting veins that transport blood from the superficial veins to the deep veins. Branch varicose veins are ... Radiofrequency ablation is used to treat the great saphenous vein, the small saphenous vein, and the perforator veins. ... atrium to pulmonary artery Fontan procedure. left ventricle to aorta Rastelli procedure. right ventricle to pulmonary artery ...
Bronchial veins Pulmonary thromboendarterectomy Leslie, Kevin O.; Wick, Mark R. (2018-01-01), Leslie, Kevin O.; Wick, Mark R. ( ... Note that much of the oxygenated blood supplied by the bronchial arteries is returned via the pulmonary veins rather than the ... They anastomose with the branches of the pulmonary arteries, and together, they supply the visceral pleura of the lung in the ... It is easy to confuse the bronchial arteries with the pulmonary arteries, because they both supply the lungs with blood, but ...
... nonpyogenic mesenteric pulmonary The risk of developing deep vein thrombosis, or pulmonary embolism is different than the total ... "Deep Vein Thrombosis & Pulmonary Embolism, Chapter 2, Travelers' Health". CDC. Retrieved 2016-12-25. This article incorporates ... Risk assessment and intervention for those with one or more episodes of deep vein thrombosis or blood clots in the veins ... Estimates of the incidence of pulmonary embolism in the US is 0.1% persons/year. Hospital admissions in the US for pulmonary ...
ATP1A2 Alveolar capillary dysplasia with misalignment of pulmonary veins; 265380; FOXF1 Alveolar soft part sarcoma; 606243; ... ZFHX4 Pulmonary alveolar microlithiasis; 265100; SLC34A2 Pulmonary alveolar proteinosis; 300770; CSF2RA Pulmonary fibrosis, ... MADH9 Pulmonary hypertension, primary, fenfluramine-associated; 178600; BMPR2 Pulmonary veno occlusive disease; 265450; BMPR2 ... pulmonary, 1; 265120; SFTPB Surfactant metabolism dysfunction, pulmonary, 2; 610913; SFTPC Surfactant metabolism dysfunction, ...
"Total Anomalous Pulmonary Venous Drainage Into the Portal Vein." American Heart Journal. vol. 53, no. 4, 1957, pp. 616-623. ... "Pulmonary Interstitial Emphysema in the Newborn Infant Precursors and Sequelae: A Clinical and Pathologic Study." Disease of ...
A prospective, randomized comparison of modified pulmonary vein isolation versus conventional pulmonary vein isolation in ... They are typically numerous at the pulmonary veins antrum. Several evidences have shown that the AFNs represent the true ... Arruda M, Natale A. Ablation of permanent AF: adjunctive strategies to pulmonary veins isolation: targeting AF NEST in sinus ...
I28.0) Arteriovenous fistula of pulmonary vessels *Pulmonary arteriovenous fistula: between an artery and vein of the lungs, ... surgical creation of a portacaval fistula produces an anastomosis between the hepatic portal vein and the inferior vena cava ...
Issuing from each lung is a pair of pulmonary veins; each pair unites to form a single vessel, and these in turn join in a ... so that in the adult all four veins open separately into the left atrium. This article incorporates text in the public domain ...
Ding, Xueqin; Murray, Paul A. (November 2005). "Cellular mechanisms of thromboxane A2-mediated contraction in pulmonary veins ...
Manscill, D.C. (2018). "Intermittent Pneumatic Compression and Preventing Deep Vein Thrombosis & Pulmonary Embolism". Top Sport ... The primary functional aim of the device "is to squeeze blood from the underlying deep veins, which, assuming that the valves ... or pulmonary embolism (PE). In use, an inflatable jacket (sleeve, glove, trousers or boot) encloses the limb requiring ... or boots in a system designed to improve venous circulation in the limbs of patients who suffer edema or the risk of deep vein ...
... to relax very quickly after each contraction so as to quickly fill with the oxygenated blood flowing from the pulmonary veins. ... Its upper and left angle forms a conical pouch, the conus arteriosus, from which the pulmonary artery arises. A tendinous band ... The right ventricle receives deoxygenated blood from the right atrium via the tricuspid valve and pumps it into the pulmonary ... the typical five times greater pressure workload this chamber performs while accepting blood returning from the pulmonary veins ...
"Electrophysiologic and Antiarrhythmic Effects of AZD1305 in Canine Pulmonary Vein Sleeves". Journal of Pharmacology and ...
"Pathological Effects of Pulmonary Vein beta-Radiation in a Swine Model". Journal of Cardiovascular Electrophysiology. 17 (6): ... there is continued interest in vascular brachytherapy for persistent restenosis in failed stents and vein grafts. The therapy ...
... risk of deep vein thrombosis but not of pulmonary embolism. Multidetector-row computed tomography in suspected pulmonary ... Perrier, A.; Bounameaux, H. "Cost-effective diagnosis of deep vein thrombosis and pulmonary embolism". Thrombosis and ... Diagnosis of pulmonary embolism by a noninvasive decision analysis-based strategy including clinical probability, D-Dime levels ... His main contribution to the field relates to the non-invasive work-up of suspected pulmonary embolism, particularly the use of ...
Over a three-year period, his pulmonary vein was converted into an aorta. Head first gained popularity by playing Bo Miller, a ...
Blood clots may include venous thromboembolism (deep vein thrombosis and pulmonary embolism), anaphylaxis. These rare side ... It is taken either orally or injection into a vein. Side effects are rare. Some include changes in color vision, blood clots, ...
He pioneered the use of catheter ablation to treat atrial fibrillation using the technique of pulmonary vein isolation to ... "Spontaneous Initiation of Atrial Fibrillation by Ectopic Beats Originating in the Pulmonary Veins". New England Journal of ... atrial fibrillation is triggered by abnormal electrical impulses originating from the pulmonary veins, structures hitherto ...
Phillips III MT, Waldo K, Kirby ML (1989). "Neural crest ablation does not alter pulmonary vein development in the chick embryo ... There is no visible difference in the pulmonary veins of chick embryos that developed persistent truncus arteriosus and embryos ... Ablation of the cardiac neural crest complex do not play a role in the systemic or pulmonary venous system as no visible venous ... This arises when the arterial trunk fails to divide and cause the separation of pulmonary artery and aorta. This results in a ...
... via the pulmonary artery, to the lungs and returned, oxygenated, to the heart via the pulmonary vein. Oxygen-deprived blood ... The human venous system develops mainly from the vitelline veins, the umbilical veins and the cardinal veins, all of which ... The pulmonary vein returns the now oxygen-rich blood to the left atrium. A separate system known as the bronchial circulation ... The left atrium receives newly oxygenated blood from the lungs as well as the pulmonary vein which is passed into the strong ...
... the junction is at the pulmonary veins.[citation needed] Low pressure baroreceptors respond to changes in the wall tension, ... Low pressure baroreceptors are baroreceptors located in large systemic veins and in the walls of the atria of the heart. They ... Low pressure baroreceptors are located in large systemic veins and the atria of the heart. In the right atrium, the stretch ...
EP4 protein is found in humans as measured by immunochemistry in pulmonary veins; kidney glomeruli and Tunica media of kidney ... The ductus operates in the fetus to shunt blood from the pulmonary artery to the proximal descending aorta thereby allowing ... mice die within 3 days of birth due to the pulmonary congestion and heart failure caused by a patent ductus arteriosis. ...
No increased risk of deep vein thrombosis, pulmonary embolism, stroke, or myocardial infarction. Minimal drug interactions ( ... Multiple risk factors for arterial cardiovascular disease Current deep vein thrombosis or pulmonary embolus Migraine headache ... strokes and pulmonary embolism. When combined with CEEs, MPA has been associated with an increased risk of breast cancer, ... nor does either increase the risk of pulmonary embolism. The two medications have not been adequately compared in direct tests ...
It is given by slow injection into a vein.[2] ... Pulmonary toxicity[30]. *Bowel obstruction and perforation[31] ...
The most common severe adverse reactions were pulmonary edema/deep vein thrombosis, splenic rupture, and myocardial infarction ... Blood was drawn peripherally in a majority of patients, but a central line to jugular/subclavian/femoral veins may be used in ... There is now a greater appreciation of the generalized cellular injury and obstruction in hepatic vein sinuses, and hepatic VOD ...
Blood is oxygenated in the lungs and returns to the left atrium through the pulmonary veins. ... Deoxygenated blood is then pumped by the right ventricle to the lungs via the pulmonary artery which is divided in two branches ... Veins and arteries appear similar when skin is removed and are seen directly.[4][5] ... The blue appearance of surface veins is caused mostly by the scattering of blue light away from the outside of venous tissue if ...
Deep vein thrombosis - a blood clot in a large vein, like a leg vein - is a risk factor for pulmonary embolism ... The worst kind of pulmonary embolism is caused by a saddle embolus. This kind of embolus blocks the pulmonary artery, which ... There are a few treatments for pulmonary embolism. The choice of which treatments to use depends on how serious the pulmonary ... Having had a deep vein thrombosis (DVT) - a blood clot in a large vein - before ...
... pulmonary veins, and paired aortic arches.[69]. Some squamate species (e.g., pythons and monitor lizards) have three-chambered ... Tegu lizards are known to possess a proto-diaphragm, which separates the pulmonary cavity from the visceral cavity. While not ... separation of pulmonary and systemic pressures". The Journal of Experimental Biology. 206 (Pt 23): 4242-4245. doi:10.1242/jeb. ... but also have two systemic aortas and are therefore capable of bypassing their pulmonary circulation.[71] ...
pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... pulmonary valve → (pulmonary artery and pulmonary circulation) ... while anteriorly it is hidden by the pulmonary artery and aorta ...
... aorta for oxygenated blood and pulmonary vein for deoxygenated blood. The spiral valve is essential to keeping the mixing of ... as is the case for the pulmonary artery (which delivers de-oxygenated blood from the heart to the lungs) and the arteries that ...
Arteries or veins. *Angiopathy *Macroangiopathy. *Microangiopathy. *Embolism *Pulmonary embolism. *Cholesterol embolism. * ...
It is therefore used to indicate deep-vein thrombosis, pulmonary embolism, DIC and efficacy of treatment in acute myocardial ... and in the event of a massive pulmonary embolism. ...
... and bulging neck veins.[5] COPD is more common than any other lung disease as a cause of cor pulmonale.[37] Cor pulmonale has ... Wikimedia Commons has media related to Chronic obstructive pulmonary disease.. *Chronic obstructive pulmonary disease at Curlie ... "Chronic obstructive pulmonary disease (COPD)". WHO. Retrieved 5 June 2019. Chronic Obstructive Pulmonary Disease (COPD) is not ... pulmonary rehabilitation appears to improve the overall quality of life and the ability to exercise.[109][110] If pulmonary ...
Heparin, low molecular weight heparin and physical methods for preventing deep vein thrombosis and pulmonary embolism following ...
Arteries or veins. *Angiopathy *Macroangiopathy. *Microangiopathy. *Embolism *Pulmonary embolism. *Cholesterol embolism. * ...
... forming the ligamentum arteriosum between the pulmonary trunk and aortic arch. It also plays a role in the constriction and ... eventual occlusion of a number of other fetal vessels, including the umbilical arteries and vein. The differential ...
Any accessible vein can be used although arm and hand veins are used most commonly, with leg and foot veins used to a much ... Possible consequences include hypertension, heart failure, and pulmonary edema. Hypothermia[edit]. The human body is at risk of ... Central IV lines have their catheters that are advanced through a vein and empty into a large central vein (a vein within the ... The most convenient site is often the arm, especially the veins on the back of the hand, or the median cubital vein at the ...
The azygos vein arches over it from behind; and the right pulmonary artery lies at first below and then in front of it. About 2 ... Eparterial refers to its position above the right pulmonary artery. The right bronchus now passes below the artery, and is ... It can have multiple variations and, although usually asymptomatic, it can be the root cause of pulmonary disease such as a ... Many sufferers of chronic bronchitis also suffer from chronic obstructive pulmonary disease (COPD), and this is usually ...
... that pulmonary thrombi are transported from the veins of the leg and that the blood has the ability to carry such an object. He ... Virchow is also known for elucidating the mechanism of pulmonary thromboembolism (a condition of blood clotting in the blood ... His autopsy on a baby in 1856 was the first description of congenital pulmonary lymphangiectasia (the name given by K. M. ... "Pneumonectomy case in a newborn with congenital pulmonary lymphangiectasia". Journal of Korean Medical Science. 29 (4): 609-13 ...
After absorption, the alcohol passes to the liver through the hepatic portal vein, where it undergoes a first pass of ...
... and manifested as abrupt collapse of the neck veins or marked descent of the central venous pressure waveform. ... pulmonary embolism (McConnell's sign). *radial artery sufficiency (Allen's test). *pseudohypertension (Osler's sign) ...
Pulmonary veins attach to the left atrium separately, and also the opening to the pulmonary veins are separated by a septum.[68 ... There is a double circulatory plan in place possessing both a pulmonary circuit and systemic circuit.[64] ... Together, the ventrobronchi and dorsobronchi are connected by intra-pulmonary airways, the parabronchi, which form an arcade ... and caudal sections by large veins.[61] The caudal section is the largest, extends into the middle of the pelvis.[61] The ...
... pulmonary artery and pulmonary vein) and therefore is considered the approach of choice for pulmonary resection (pneumonectomy ... When performed over the fifth intercostal space, it allows optimal access to the pulmonary hilum ( ...
Atrial fibrillation can also be treated through a procedure, e.g. pulmonary vein isolation. This is performed by a cardiologist ...
In a similar vein, psychiatrist Jonathan Shay has proposed that Lady Percy's soliloquy in the William Shakespeare play Henry IV ...
Beta-receptor antagonists should be avoided in patients with reactive pulmonary disease to avoid asthma attacks. Also Beta- ... The nitric oxide increase in the blood resulting from these drugs also causes dilation of systemic veins which in turn causes a ...
... , edema, is a severe and generalized edema with widespread subcutaneous tissue swelling.[1] It is usually caused by liver failure (cirrhosis of the liver), renal failure/disease, right-sided heart failure, as well as severe malnutrition/protein deficiency. The increase in salt and water retention caused by low cardiac output can also result in anasarca as a long term maladaptive response. It can also be created from the administration of exogenous intravenous fluid. Certain plant-derived anticancer chemotherapeutic agents, such as docetaxel, cause anasarca through a poorly understood capillary leak syndrome.[2] In Hb Barts, the high oxygen affinity results in poor oxygen delivery to peripheral tissues, resulting in anasarca. ...
The skin of the face, normally around the mouth, and the mucosa of the mouth and/or throat, as well as the tongue, swell over the period of minutes to hours. The swelling can also occur elsewhere, typically in the hands. The swelling can be itchy or painful. There may also be slightly decreased sensation in the affected areas due to compression of the nerves. Urticaria (hives) may develop simultaneously. In severe cases, stridor of the airway occurs, with gasping or wheezy inspiratory breath sounds and decreasing oxygen levels. Tracheal intubation is required in these situations to prevent respiratory arrest and risk of death. Sometimes, the cause is recent exposure to an allergen (e.g. peanuts), but more often it is either idiopathic (unknown) or only weakly correlated to allergen exposure. In hereditary angioedema, often no direct cause is identifiable, although mild trauma, including dental work and other stimuli, can cause attacks.[4] There is usually no associated itch or urticaria, as it ...
pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and ... the pressure in the pulmonary artery will close the pulmonary valve. The closure of the pulmonary valve contributes the P2 ... Pulmonary semilunar valve 3 (half-moon shaped) flaps at the opening between the right ventricle and the pulmonary trunk ... The aortic and pulmonary valves are located at the base of the aorta and the pulmonary trunk respectively. These are also ...
A radioactive tracer is injected through any accessible vein and then allowed to circulate to the liver, where it is excreted ... Pulmonary CT. *Head CT. *Thyroid CT. *Whole body imaging *Full-body CT scan ...
Arteries or veins. *Angiopathy *Macroangiopathy. *Microangiopathy. *Embolism *Pulmonary embolism. *Cholesterol embolism. * ... The most common clinical presentations of hypertensive emergencies are cerebral infarction (24.5%), pulmonary edema (22.5%), ... Cardiovascular system damage can include myocardial ischemia/infarction, acute left ventricular dysfunction, acute pulmonary ... left ventricular failure and pulmonary edema or myocardial ischemia may occur. [9] ...
There are many connections between the prostatic venous plexus and the vertebral veins. The veins forming the prostatic plexus ... As the average life expectancy increases due to advances in the treatment of cardiovascular, pulmonary and other chronic ... to bone is thought to be venous as the prostatic venous plexus draining the prostate connects with the vertebral veins.[59] ... is thought that straining to urinate causes prostatic venous blood to flow in a reverse direction and enter the vertebral veins ...
However, when the blood circulates through the lungs a pulmonary capillary endothelial enzyme called angiotensin-converting ... and great veins.[25][26] Apart from the internal regulation of temperature, a process called allostasis can come into play that ... and returned to the trunk via the deep veins which lie alongside the arteries (forming venae comitantes).[24][28][30] This acts ... The subcutaneous limb veins are tightly constricted,[13] not only reducing heat loss from this source, but also forcing the ...
Deep Vein Thrombosis & Pulmonary Embolism. Nimia L. Reyes, Michele G. Beckman, Karon Abe ... Deep vein thrombosis (DVT) is a condition in which a blood clot develops in the deep veins, most commonly in the lower ... A pulmonary embolism occurs when a part of the clot breaks off and travels to the lungs, a potential life threat. Venous ... Computed tomographic pulmonary angiography is the standard imaging procedure for diagnosis of PE. Ventilation-perfusion scan is ...
... and deep vein thrombosis (DVT) in people aged 16 and over ... Varicose vein surgery. 1.15.8 Be aware that VTE prophylaxis is ... Venous thromboembolism in over 16s: reducing the risk of hospital-acquired deep vein thrombosis or pulmonary embolism NICE ... the signs and symptoms of deep vein thrombosis (DVT) and pulmonary embolism ... 1.15.11 If using anti-embolism stockings for people undergoing varicose vein surgery, continue until the person no longer has ...
pulmonary veins Pulmonary veins are the four veins that return blood from the lungs to the heart. They empty into the left ...
Pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the left atrium of the heart. ... Veins are the blood vessels that carry blood to the heart. ... This differentiates the pulmonary veins from other veins in the ... Humans have four pulmonary veins in total, two from each lung. There are two right pulmonary veins, known as the right superior ... Veins are the blood vessels that carry blood to the heart. Pulmonary veins are responsible for carrying oxygenated blood from ...
The left superior pulmonary vein returns blood from the upper left lobe of the lung back to the heart. ...
Alveolar capillary dysplasia with misalignment of pulmonary veins (ACD/MPV) is a disorder affecting the development of the ... The veins that carry blood from the lungs into the heart (pulmonary veins) are improperly positioned and may be abnormally ... Learn more about the gene and chromosome associated with Alveolar capillary dysplasia with misalignment of pulmonary veins. * ... Alveolar capillary dysplasia with misalignment of pulmonary veins (ACD/MPV) is a disorder affecting the development of the ...
... there are a total of four pulmonary veins, and all of them connect to the left atrium of the heart. The heart pumps oxygen- ... depleted blood into the lungs via the pulmonary arteries. ... Left pulmonary veins. Left pulmonary veins. Medically reviewed ... In this way, pulmonary veins are different from other veins in the body, which are used to carry deoxygenated blood from the ... The left pulmonary veins connect with the left lung, and the lungs themselves are filled with hollow air sacs called alveoli. ...
These can dislodge and cause conditions such as deep vein thrombosis (DVT), heart attack, and stroke. Here, we look at the ... A deep vein thrombosis - a clot, usually in a lower leg - is one major cause of pulmonary embolism. It occurs when a DVT ... What is pulmonary embolism (PE)?. A pulmonary embolism (PE) is a blocked artery in the chest that occurs when a blood clot is ... www.merckmanuals.com/professional/pulmonary-disorders/pulmonary-embolism-pe/pulmonary-embolism-pe. ...
Pulmonary vein isolation - Overview covers risks, what to expect during this procedure to correct atrial fibrillation using ... Pulmonary vein isolation for atrial fibrillation. In: Catheter Ablation of Cardiac Arrhythmias. 3rd ed. Philadelphia, Pa.: ... Pacemaker insertion, Atrial flutter ablation, Pulmonary vein isolation, SVT ablation, Cardioversion, EP study, Cardiac ... ...
EIPH pathology is characterized by occlusive remodeling of pulmonary veins. Affected … ... While airway endoscopy and bronchoalveolar lavage are the methodsof choice for diagnosing exercise-induced pulmonary hemorrhage ... Exercise-induced pulmonary hemorrhage in horses: the role of pulmonary veins Compend Contin Educ Vet. 2011 Apr;33(4):E6. ... EIPH pathology is characterized by occlusive remodeling of pulmonary veins. Affected veins have large collagen deposits in ...
at least one in 10 people with deep vein thrombosis have a pulmonary embolism. that number may actually be much higher, though ... What causes pulmonary embolism in deep vein thrombosis?. NEXT QUESTION: When should you call 911 about pulmonary embolism in ... How common is a pulmonary embolism in deep vein thrombosis?. ANSWER At least one in 10 people with deep vein thrombosis have a ... What causes postthrombotic syndrome in deep vein thrombosis?. *What are the long-term effects of postthrombotic syndrome in ...
Pulmonary vein stenosis as a post-surgical complication is somewhat more common and better understood, according to the authors ... A step in that direction is the multicenter Pulmonary Vein Stenosis Network registry study, led by The Hospital for Sick ... The more veins that are involved, the worse the prognosis is. Mortality incidence in infants with one to two vein stenoses was ... Depending on the publication, the mortality rate for primary infant pulmonary vein stenosis could be anywhere from 30 percent ...
The 4th ablation was planned because the physician was unable to ablate the foci in all 5 branches of the pulmonary vein at ...
Learn more about a pulmonary vein ablation, and what to expect during and after the procedure from the doctors at the Cleveland ... What is pulmonary vein ablation?. Pulmonary vein ablation (also called pulmonary vein antrum isolation or PVAI), is a treatment ... Who should have pulmonary vein ablation?. Pulmonary vein ablation may be the best treatment option for patients who:. *Still ... Research has shown that atrial fibrillation usually begins in the pulmonary veins or at the point where they attach to the left ...
Pulmonary vein isolation - Overview covers risks, what to expect during this procedure to correct atrial fibrillation using ... Pulmonary vein isolation and other cardiac ablation procedures are performed by heart specialists (cardiologists) with special ... Pulmonary vein isolation for atrial fibrillation. In: Catheter Ablation of Cardiac Arrhythmias. 3rd ed. Philadelphia, Pa.: ... Your Mayo Clinic care team is experienced in using pulmonary vein isolation to treat atrial fibrillation and performs many ...
pulmonary veins, pathology. Pulmonary vein stenosis is a fascinating yet frustrating and difficult to manage condition with an ... Cases of pulmonary vein stenosis after cardiovascular surgery for lesions not in proximity to the pulmonary veins have also ... Pulmonary vein stenosis may also be secondary in pediatric patients and occurs most often after anomalous pulmonary vein ... Pulmonary Vein Stenosis in Adults. Primary pulmonary vein stenosis, with a pathological appearance similar to the childhood ...
Home / For Patients and Families / Rare Disease Information / Alveolar Capillary Dysplasia with Misalignment of Pulmonary Veins ... Alveolar capillary dysplasia with misalignment of the pulmonary veins (ACDMPV, OMIM# 265380) is a very rare disorder that is ... Novel FOXF1 mutations in sporadic and familial cases of alveolar capillary dysplasia with misaligned pulmonary veins imply a ... A familial case of alveolar capillary dysplasia with misalignment of pulmonary veins supports paternal imprinting of FOXF1 in ...
Deep Vein Thrombosis, Pulmonary EmbolismAStudy To Evaluate Safety And Eficacy Of Apixaban In Japanese Acute Deep Vein ... Deep Vein Thrombosis, Pulmonary EmbolismA Study of Adverse Events and Suspected Adverse Drug Reactions of Patients Under ... Deep Vein Thrombosis, Pulmonary EmbolismThe D-KAF (Dalteparin in Knee-to-Ankle Fracture) Trial NCT00187408 ... AStudy To Evaluate Safety And Eficacy Of Apixaban In Japanese Acute Deep Vein Thrombosis (DVT) And Pulmonary Embolism (PE) ...
If patients could recognise themselves, or anyone else could recognise a patient from your description, please obtain the patients written consent to publication and send them to the editorial office before submitting your response [Patient consent forms] ...
Architecture of the pulmonary veins: relevance to radiofrequency ablation Message subject: (Your Name) has forwarded a page to ...
Home » Topics » Pulmonary » Research » Pulmonary Vein (PV) -Isolation: Arrhythmogenic Vein(s) Versus All Veins ... pulmonary vein ablation approach, (1) with empiric isolation of all pulmonary veins or (2) Segmental Isolation of the ... Pulmonary Vein (PV) -Isolation: Arrhythmogenic Vein(s) Versus All Veins. 2014-07-24 14:19:01 , BioPortfolio ... More From BioPortfolio on "Pulmonary Vein (PV) -Isolation: Arrhythmogenic Vein(s) Versus All Veins". *Related Companies*Related ...
RMPV stands for Right Middle Pulmonary Vein (cardiology). RMPV is defined as Right Middle Pulmonary Vein (cardiology) rarely. ... How is Right Middle Pulmonary Vein (cardiology) abbreviated? ... www.acronymfinder.com/Right-Middle-Pulmonary-Vein-(cardiology ... www.acronymfinder.com/Right-Middle-Pulmonary-Vein-(cardiology)-(RMPV).html ... www.acronymfinder.com/Right-Middle-Pulmonary-Vein-(cardiology)-(RMPV).html ...
Recurrence of Arrhythmias After Pulmonary Veins Isolation Detected by ICM (RAPID XT). The safety and scientific validity of ...
Clinical predictors and outcomes associated with acute return of pulmonary vein conduction during pulmonary vein isolation for ... Interstitial Cajal-like cells (ICLC) in myocardial sleeves of human pulmonary veins. J. Cell. Mol. Med. 12:1777-1781. View this ... Melanocyte-like cells in the heart and pulmonary veins contribute to atrial arrhythmia triggers. Mark D. Levin,1,2 Min Min Lu,1 ... Spontaneous initiation of atrial fibrillation by ectopic beats originating in the pulmonary veins. N. Engl. J. Med. 339:659-666 ...
W. M. Decampli, "Pulmonary vein stenosis: plea for a multi-institutional registry," The Journal of Thoracic and Cardiovascular ... "Isolated congenital left-sided pulmonary vein stenosis in an adult patient misdiagnosed as primary pulmonary hypertension," ... D. B. Holt, J. H. Moller, S. Larson, and M. C. Johnson, "Primary pulmonary vein stenosis," The American Journal of Cardiology, ... C.-C. J. Sun, T. Doyle, and R. E. Ringel, "Pulmonary vein stenosis," Human Pathology, vol. 26, no. 8, pp. 880-886, 1995. View ...
I have an OP report where my CT surgeon isolated the bilateral superior and inferior pulmonary veins during CABG surgery using ... Hello all - I have an OP report where my CT surgeon isolated the bilateral superior and inferior pulmonary veins during CABG ... Hello all - I have an OP report where my CT surgeon isolated the bilateral superior and inferior pulmonary veins during CABG ... I normally bill 33259 when the ablation involves the atria but have not encountered the ablation of pulmonary veins themselves ...
... Gijs E. De Maat,1 Yoran M. ... To isolate the pulmonary veins, a bipolar radiofrequency clamp (Isolator, AtriCure, Cincinnati, Ohio, USA) was used to create ... Thoracoscopic surgical pulmonary vein isolation (sPVI) has been added to the treatment of atrial fibrillation (AF), showing ... A. Yilmaz, B. P. van Putte, and W. J. van Boven, "Completely thoracoscopic bilateral pulmonary vein isolation and left atrial ...
Evidence-based recommendations on percutaneous endoscopic laser balloon pulmonary vein isolation for atrial fibrillation in ... Percutaneous endoscopic laser balloon pulmonary vein isolation for atrial fibrillation. Interventional procedures guidance [ ... Evidence-based recommendations on percutaneous endoscopic laser balloon pulmonary vein isolation for atrial fibrillation in ... This guidance replaces NICE interventional procedures guidance on percutaneous endoscopic catheter laser balloon pulmonary vein ...
See how the experts at UC San Diego Health treat pulmonary embolism and deep vein thrombosis. ... Pulmonary embolism is a blockage in an artery in the lungs as a result of a blood clot (thrombus). ... Pulmonary Vascular Disease Care *CTEPH - Chronic Thromboembolic Pulmonary Hypertension. *Pulmonary Thromboendarterectomy (PTE) ... Pulmonary Vascular Disease Care *CTEPH - Chronic Thromboembolic Pulmonary Hypertension. *Pulmonary Thromboendarterectomy (PTE) ...
PubMed journal article Ventricular Tachycardia Storm After Standard Radiofrequency Pulmonary Vein Isolatio were found in PRIME ... "Ventricular Tachycardia Storm After Standard Radiofrequency Pulmonary Vein Isolation." The American Journal of Case Reports, ... Ventricular Tachycardia Storm After Standard Radiofrequency Pulmonary Vein Isolation. Am J Case Rep. 2019 Oct 19;20:1536-1539. ... Ventricular Tachycardia Storm After Standard Radiofrequency Pulmonary Vein Isolation.. Am J Case Rep 2019; 20:1536-1539AJ ...
  • A pulmonary embolism occurs when a part of the clot breaks off and travels to the lungs, a potential life threat. (cdc.gov)
  • A deep vein thrombosis - a clot, usually in a lower leg - is one major cause of pulmonary embolism. (medicalnewstoday.com)
  • How common is a pulmonary embolism in deep vein thrombosis? (webmd.com)
  • At least one in 10 people with deep vein thrombosis have a pulmonary embolism. (webmd.com)
  • When should you call 911 about pulmonary embolism in deep vein thrombosis? (webmd.com)
  • What is Pulmonary Embolism? (ucsd.edu)
  • Pulmonary embolism (PE) is a blockage in an artery in the lungs as a result of a blood clot (thrombus). (ucsd.edu)
  • Pulmonary embolism is often caused by deep venous thrombosis (DVT), a condition where blood clots form in the deep veins of the legs. (ucsd.edu)
  • Venous thromboembolism, a term that includes both pulmonary embolism and deep venous thrombosis, can be provoked by a combination of hereditary and acquired risk factors. (ucsd.edu)
  • Shortness of breath is often the first warning sign of pulmonary embolism. (ucsd.edu)
  • Why is Treating Pulmonary Embolism Critical? (ucsd.edu)
  • Acute pulmonary embolism can be life-threatening. (ucsd.edu)
  • Acute pulmonary embolism requires immediate treatment with anticoagulant medications. (ucsd.edu)
  • Despite treatment with anticoagulants, nearly a third of people with acute pulmonary embolism will have some amount of scarring in the lung arteries that can cause chronic problems. (ucsd.edu)
  • Approximately 1-3 percent of people with pulmonary embolism will progress to CTEPH. (ucsd.edu)
  • It can be difficult to diagnose pulmonary embolism (PE) as symptoms overlap with many other diseases and conditions (e.g. (ucsd.edu)
  • The first step of diagnosis is determining how likely it is that you have pulmonary embolism. (ucsd.edu)
  • This involves ruling out other possible causes of your symptoms, as well as evaluating your risk factors for pulmonary embolism and deep vein thrombosis (DVT). (ucsd.edu)
  • Our team has advanced diagnostic tools to diagnose pulmonary embolism. (ucsd.edu)
  • A pulmonary embolism that does not resolve on its own can be life-threatening. (ucsd.edu)
  • Modern treatment of deep vein thrombosis and pulmonary embolism. (medworm.com)
  • Direct oral anticoagulants are approved for the treatment of venous thrombosis and pulmonary embolism, but not during pregnancy or in children. (medworm.com)
  • Patient outcomes after deep vein thrombosis and pulmonary embolism: the Worcester Venous Thromboembolism Study. (nih.gov)
  • Despite advances in the management of deep vein thrombosis (DVT) and pulmonary embolism (PE), relatively few contemporary data describe and compare outcomes in patients with these common conditions from a more generalizable community-based perspective. (nih.gov)
  • This study evaluates whether CMS's refusal to pay for hospital-acquired pulmonary embolism (PE) or deep vein thrombosis (DVT) resulted in a lower incidence of these conditions. (rand.org)
  • The outcome was the incidence proportion of hip and knee replacement surgery admissions that developed pulmonary embolism or deep vein thrombosis. (rand.org)
  • At baseline, pulmonary embolism or deep vein thrombosis were present in 0.81 % of all hip or knee replacement surgeries for Medicare patients aged 65-69 years old. (rand.org)
  • CMS payment reform resulted in a 35 % lower incidence of hospital-acquired pulmonary embolism or deep vein thrombosis in these patients ( p = 0.015). (rand.org)
  • CMS's refusal to pay for hospital-acquired conditions resulted in a lower incidence of hospital-acquired pulmonary embolism or deep vein thrombosis after hip or knee replacement surgery. (rand.org)
  • Since then we have found that using tight stockings (we call them anti embolism stockings) and mechanical devices that squeeze the calf further reduce the chance of clotting in the leg veins. (healthcentral.com)
  • WASHINGTON) - The American Society of Hematology has released three critical recommendations, developed from a national workshop held in partnership with the Centers for Disease Control and Prevention (CDC), to address deep-vein thrombosis (DVT) and pulmonary embolism (PE), a growing public health problem estimated to affect nearly 1 million Americans each year. (hematology.org)
  • There, doctors discovered that Burgess's superficial blood clot had turned into deep vein thrombosis (DVT), which developed into a potentially deadly pulmonary embolism (PE). (everydayhealth.com)
  • If the DVT blood clot breaks off and travels up to the lungs, it becomes a pulmonary embolism (PE). (everydayhealth.com)
  • In 2009 the Department of Health in England estimated that every year there were 25,000 preventable deaths from pulmonary embolism in English Hospitals. (qualitysolicitors.com)
  • Pulmonary Embolism is a blockage in the main artery of the lung by a substance that has migrated from elsewhere in the body. (qualitysolicitors.com)
  • The pulmonary embolism occurs when the clot breaks off and travels up to the lungs. (qualitysolicitors.com)
  • If a DVT goes unrecognised and undiagnosed a pulmonary embolism can be the result. (qualitysolicitors.com)
  • If treatment is not administered, it is estimated that 26% of patients who suffer a pulmonary embolism will die. (qualitysolicitors.com)
  • Occasionally pulmonary embolism suffered in hospital could have been prevented with the provision of reasonable medical treatment. (qualitysolicitors.com)
  • If you or someone you know has suffered a pulmonary embolism as a result of possible negligence contact one of our expert team to discuss your options for a claim. (qualitysolicitors.com)
  • All patients completed a questionnaire about a diagnosis of deep-vein thrombosis (DVT) and pulmonary embolism (PE) in the past, their risk factors, history of asthma and medication use. (ersjournals.com)
  • Severe asthma greatly enhances the risk of pulmonary embolism, particularly if chronic corticosteroids are used. (ersjournals.com)
  • What is Deep Vein Thrombosis (DVT) & Pulmonary Embolism (PE)? (circulationfoundation.org.uk)
  • this is called a pulmonary embolism. (circulationfoundation.org.uk)
  • Because so few people without risk factors ever develop DVT or pulmonary embolism as a result of long journeys, there is no definite evidence about other measures which reduce the risk. (circulationfoundation.org.uk)
  • Below is the transcript from the chat session, which focused on deep vein thrombosis (DVT) and pulmonary embolism (PE). (clotcare.com)
  • The standard diagnostic approach in patients suspected of having pulmonary embolism starts with perfusion-ventilation lung scanning. (annals.org)
  • The use of tests for deep venous thrombosis has been advocated as an adjunct to establishing the diagnosis of pulmonary embolism, but no prospective studies have provided adequate information about the value of these tests. (annals.org)
  • To determine the accuracy and potential clinical utility of compression ultrasonography in the diagnosis of pulmonary embolism. (annals.org)
  • 397 consecutive inpatients and outpatients in whom pulmonary embolism was clinically suspected. (annals.org)
  • Perfusion-ventilation scanning and angiography were the conjoint gold standard for determining the presence or absence of pulmonary embolism. (annals.org)
  • Turkstra F, Kuijer PM, van Beek EJ, Brandjes DP, ten Cate JW, Buller HR. Diagnostic Utility of Ultrasonography of Leg Veins in Patients Suspected of Having Pulmonary Embolism. (annals.org)
  • The only text available to provide both the doctor's and patient's views, 100 Questions & Answers About Deep Vein Thrombosis and Pulmonary Embolism gives you authoritative, practical answers to your questions. (powells.com)
  • DVT is the formation of a blood clot in a deep vein, and which most commonly occurs in the legs, while PE is the embolism of a pulmonary artery. (medgadget.com)
  • NEW YORK, May 30, 2011 /- Reportlinker.com announces that a new market research report is available in its catalogue: Epidemiology: Major Abdominal Surgery - A key risk factor for deep vein thrombosis and pulmonary embolism. (mdtmag.com)
  • LOVENOX treatment lowered the risk of deep vein thrombosis (DVT) which may lead to pulmonary embolism (PE). (lovenox.com)
  • The last section of the animation shows the embolus lodging in the lung tissue to form a potentially life-threatening pulmonary embolism. (doereport.com)
  • Already green-lighted for use to reduce the risk of DVT and pulmonary embolism (PE) after knee or hip replacement surgery-and reduce the risk of stroke in non-valvular atrial fibrillation patients-the anticoagulant therapy has been approved for use in the treatment of acute DVT and PE, and to reduce the risk of recurrent DVT and PE after initial treatment. (the-hospitalist.org)
  • It can cause swelling and pain in the leg and may lead to pulmonary embolism (PE). (rbht.nhs.uk)
  • If a piece of the blood clot breaks off into the blood stream, and blocks one of the blood vessels in the lungs, it is called pulmonary embolism (PE). (rbht.nhs.uk)
  • This leaflet gives general information on reducing the risk of developing deep vein thrombosis (DVT) and pulmonary embolism (PE). (rbht.nhs.uk)
  • Pulmonary vein ablation (also called pulmonary vein antrum isolation or PVAI), is a treatment for atrial fibrillation. (clevelandclinic.org)
  • Research has shown that atrial fibrillation usually begins in the pulmonary veins or at the point where they attach to the left atrium. (clevelandclinic.org)
  • Between 75 and 80 percent of these patients whose atrial fibrillation is not related to any other heart disease are completely cured with one pulmonary vein ablation procedure. (clevelandclinic.org)
  • At Mayo Clinic, experts in atrial fibrillation provide compassionate, whole-person care to people considering pulmonary vein isolation. (mayoclinic.org)
  • Mayo Clinic doctors are respected for their expertise in using pulmonary vein isolation to treat atrial fibrillation. (mayoclinic.org)
  • Your Mayo Clinic care team is experienced in using pulmonary vein isolation to treat atrial fibrillation and performs many procedures. (mayoclinic.org)
  • However, with the advent of aggressive treatment strategies for atrial fibrillation, we have seen a new group of pulmonary vein stenosis patients. (ahajournals.org)
  • In most hearts, approximately half of the left atrium is comprised of the common pulmonary vein and the other half, which includes the left atrial appendage, forms from the primitive left atrium. (ahajournals.org)
  • BACKGROUND Atrial fibrillation ablation procedures typically involve isolation of all pulmonary veins (PVs), yet the need for such an extensive ablation strategy in all patients is unclear. (bioportfolio.com)
  • We conduct a randomized study comparing the safety and effectiveness of two interventional ablation techniques for treatment of paroxysmal atrial fibrillation: the segmental pulmonary vein ablation approach, (1) with empiric isolation of all pulmonary veins or (2) Segmental Isolation of only the arrhythmogenic pulmonary vein(s). (bioportfolio.com)
  • In ablation strategy for persistent Atrial Fibrillation (PsAF), ablation limited to Pulmonary Vein (PV) isolation is the most straightforward approach but the result give only 50% of arrhy. (bioportfolio.com)
  • Objective: This prospective study aims to examine the outcome of atrial fibrillation (AF) ablation after permanent pulmonary vein antrum isolation or pulmonary vein antrum isolation plus l. (bioportfolio.com)
  • Thoracoscopic surgical pulmonary vein isolation (sPVI) has been added to the treatment of atrial fibrillation (AF), showing excellent efficacy outcomes. (hindawi.com)
  • Evidence-based recommendations on percutaneous endoscopic laser balloon pulmonary vein isolation for atrial fibrillation in adults. (nice.org.uk)
  • This guidance replaces NICE interventional procedures guidance on percutaneous endoscopic catheter laser balloon pulmonary vein isolation for atrial fibrillation (IPG399). (nice.org.uk)
  • In some people, pulmonary vein stenosis occurs after pulmonary vein ablation for the treatment of atrial fibrillation. (wikipedia.org)
  • The objective of this clinical investigation is to assess the safety and acute effectiveness of the multi-electrode radiofrequency balloon catheter and multi-electrode circular diagnostic catheter when used for the isolation of the pulmonary veins in the treatment of Paroxysmal Atrial Fibrillation (PAF). (clinicaltrials.gov)
  • Selected for atrial fibrillation (AF) ablation procedure for pulmonary vein isolation. (clinicaltrials.gov)
  • Introduction: Imbalanced autonomic activity in the area of the pulmonary veins (PVs) can result in spontaneous atrial fibrillation (AF). (doaj.org)
  • Complete isolation of the pulmonary veins (PV) is considered the cornerstone of catheter intervention to treat atrial fibrillation (AF). (acc.org)
  • In addition to energy delivery to PV tissue, a deep position inside the vein results in the combined effect of close proximity to adjacent structures and deeper freezing temperatures due to less convective heating of the balloon by atrial blood flow. (acc.org)
  • Adenosine infusion during atrial fibrillation ablation is often used to evaluate for dormant pulmonary vein (PV) conduction. (springer.com)
  • Clinical predictors and outcomes associated with acute return of pulmonary vein conduction during pulmonary vein isolation for treatment of atrial fibrillation. (springer.com)
  • Acute pulmonary vein isolation is achieved by a combination of reversible and irreversible atrial injury after catheter ablation: evidence from magnetic resonance imaging. (springer.com)
  • Adenosine-guided pulmonary vein isolation for the treatment of paroxysmal atrial fibrillation: an international, multicenter, randomized superiority trial. (springer.com)
  • One of the most serious complications post-catheter ablation of atrial fibrillation is the development of pulmonary vein stenosis. (ovid.com)
  • We report the case of a 28-year-old man who developed recurrent left inferior pulmonary vein stenosis following radiofrequency ablation for atrial fibrillation. (ovid.com)
  • A special part of this chapter is dedicated to the left atrium and pulmonary veins with the venoatrial junction, important structures for catheter ablation of atrial fibrillation. (intechopen.com)
  • New strategies for pulmonary vein isolation appeared and made the procedure safety and efficient, after a meticulous characterization of the atrial muscular sleeves that prolong inside the veins. (intechopen.com)
  • The pulmonary veins are covered by a short (~9 mm) myocardial layer, which is often the electrical focus of atrial fibrillation with the left superior pulmonary vein being the foci for almost half of cases. (radiopaedia.org)
  • MDCT of the left atrium and pulmonary veins in planning radiofrequency ablation for atrial fibrillation: a how-to guide. (radiopaedia.org)
  • Multi-detector row CT of the left atrium and pulmonary veins before radio-frequency catheter ablation for atrial fibrillation. (radiopaedia.org)
  • Transesophageal echocardiographic evaluation of pulmonary vein diastolic wave deceleration time - As a predictor of left atrial pressure. (nih.gov)
  • This study was conducted to correlate deceleration time of pulmonary venous diastolic wave, DT (D) , and left atrial pressure (LAP), obtained noninvasively from mitral early diastolic inflow velocity-to-early diastolic mitral annulus velocity ratio (E/e'), and to assess the ease of each method in patients with coronary artery disease undergoing off-pump coronary artery bypass grafting (OPCAB) by transesophageal echocardiography. (nih.gov)
  • This is a multi-site, randomized, investigator-initiated pilot study to evaluate the efficacy of investigational techniques to reduce fluoroscopy time or radiation dose and the amount of radio opaque contrast used during a cryoballoon pulmonary vein isolation procedure for atrial fibrillation. (clinicaltrials.gov)
  • Surgical and catheter based technologies target triggers that initiate atrial fibrillation located in the pulmonary veins (PV). (clinicaltrials.gov)
  • In order to isolate these triggers, radiofrequency energy or freezing is used to destroy the atrial tissue which propagate electrical impulses into and out of the pulmonary veins (PV), to achieve pulmonary vein isolation (PVI). (clinicaltrials.gov)
  • Observation of pressure waveform change at the tip of the cryoballoon catheter from left atrial pressure to pulmonary vein pressure waveform. (clinicaltrials.gov)
  • Fibrosis explains atrial fibrillation recurrences after pulmonary vein isolations. (inria.fr)
  • HealthDay)-For patients with atrial fibrillation (AF) with two or more failed pulmonary vein isolation (PVI) procedures, ablating non-PV triggers is associated with improved outcomes, according to a study published online Aug. 25 in the Journal of Cardiovascular Electrophysiology . (medicalxpress.com)
  • Studies on patients with drug-refractory paroxysmal atrial fibrillation identified potential triggers of AF from electrically active cardiomyocytes localized in the ostia of pulmonary veins [ 12 ]. (medsci.org)
  • Pulmonary vein (PV) isolation is a cornerstone of atrial fibrillation (AF) ablation. (go.jp)
  • Pulmonary vein isolation (PVI) is a widely utilized invasive approach to treatment of atrial fibrillation. (jove.com)
  • Given the more rapid vein isolation achieved with the utilization of the cryoballoon, this latter approach has gained widespread acceptance by operators and is currently performed in most centers specializing in atrial fibrillation ablation. (jove.com)
  • All patients undergo cardiac MRI or cardiac CT imaging before the procedure to assess the left atrial and pulmonary vein anatomy and allow for measurement of PV diameter. (jove.com)
  • Over the past decade, cryoballoon therapy has evolved into a well-recognized and recommended ablation method to perform pulmonary vein isolation (PVI) in the treatment of atrial fibrillation (AF) 1 . (utwente.nl)
  • In the article by Fender et al, "Severe Pulmonary Vein Stenosis Resulting From Ablation for Atrial Fibrillation: Presentation, Management, and Clinical Outcomes," which published online before print October 28, 2016, and appeared in the December 6, 2016, issue of Circulation ( Circulation . (ahajournals.org)
  • It has been suggested that changes in pulmonary veins (PV) and left atrium (LA) anatomy may have an influence on initiating atrial fibrillation (AF) and the effectiveness of pulmonary vein isolation (PVI) in patients (pts) with atrial fibrillation. (springer.com)
  • Pulmonary veins anatomy variants were observed more frequently in the atrial fibrillation group - 83 pts. (springer.com)
  • Depending on the publication, the mortality rate for primary infant pulmonary vein stenosis could be anywhere from 30 percent to 80 percent. (nationwidechildrens.org)
  • But beyond those key points, it can be difficult to draw conclusions about pulmonary vein stenosis. (nationwidechildrens.org)
  • Pulmonary vein stenosis as a post-surgical complication is somewhat more common and better understood, according to the authors. (nationwidechildrens.org)
  • A step in that direction is the multicenter Pulmonary Vein Stenosis Network registry study, led by The Hospital for Sick Children in Toronto, with a goal of enrolling 500 children. (nationwidechildrens.org)
  • Nationwide Children's has also begun a multidisciplinary pulmonary vein stenosis program to better implement risk stratification and other care protocols for patients. (nationwidechildrens.org)
  • Pulmonary vein stenosis is a fascinating yet frustrating and difficult to manage condition with an exceptionally high mortality rate. (ahajournals.org)
  • Pulmonary vein stenosis is a relatively rare condition. (ahajournals.org)
  • Pulmonary vein stenosis in the adult population is even more rare, and the small number of reported cases has often been associated with mediastinal processes such as neoplasms or fibrosing mediastinitis. (ahajournals.org)
  • The stenosis appears as a complication of radiofrequency ablation procedures around the pulmonary veins. (ahajournals.org)
  • Small series of new surgical and interventional catheterization procedures for treatment of both the pediatric and adult forms of pulmonary vein stenosis suggest an improving prognosis in centers with specialized expertise. (ahajournals.org)
  • However, the prognosis of patients affected with pulmonary vein stenosis remains guarded and requires diligent follow-up and often repeated procedures. (ahajournals.org)
  • The syndrome of "primary" endoluminal pulmonary vein stenosis with no preceding surgery or catheter intervention has been postulated to result from abnormal incorporation of the common pulmonary vein into the left atrium in the later stages of cardiac development. (ahajournals.org)
  • 4-6 The most commonly associated congenital heart defects are septal defects, but pulmonary vein stenosis has been seen in conjunction with all major types of congenital cardiac malformations. (ahajournals.org)
  • Stenosis of the pulmonary veins may appear as a relatively discrete shelf, as a longer segment of narrowing at the junction of the pulmonary vein to the left atrium that extends slightly into the pulmonary vein, or as diffuse hypoplasia of the pulmonary veins. (ahajournals.org)
  • J. T. Benjamin, C. R. Hamm, M. Zayek, F. G. Eyal, S. Carlson, and E. Manci, "Acquired left-sided pulmonary vein stenosis in an extremely premature infant: a new entity? (hindawi.com)
  • H. J. Heching, M. Turner, C. Farkouh-Karoleski, and U. Krishnan, "Pulmonary vein stenosis and necrotising enterocolitis: is there a possible link with necrotising enterocolitis? (hindawi.com)
  • Pulmonary vein stenosis: severity and location predict survival after surgical repair," The Journal of Thoracic and Cardiovascular Surgery , vol. 151, no. 3, pp. 657-666.e2, 2016. (hindawi.com)
  • Clinical characteristics and prognostic factors of primary pulmonary vein stenosis or atresia in children," Annals of Thoracic Surgery , vol. 95, no. 1, pp. 229-234, 2013. (hindawi.com)
  • Pulmonary vein stenosis in neonates with severe bronchopulmonary dysplasia," American Journal of Perinatology , vol. 33, no. 7, pp. 671-677, 2016. (hindawi.com)
  • Outcomes of surgery for young children with multivessel pulmonary vein stenosis," The Journal of Thoracic and Cardiovascular Surgery , vol. 150, no. 4, pp. 911-917, 2015. (hindawi.com)
  • Lung transplant is a viable treatment option for patients with congenital and acquired pulmonary vein stenosis," The Journal of Heart and Lung Transplantation , vol. 32, no. 6, pp. 621-625, 2013. (hindawi.com)
  • Pulmonary vein stenosis is a rare cardiovascular disorder. (wikipedia.org)
  • It is recognized as being the stenosis of one or more of the four pulmonary veins that return blood from the lungs to the left atrium of the heart. (wikipedia.org)
  • 1 Additional rare causes of unilateral lesions include pulmonary circulatory diseases, such as proximal PA blockage (eg, PA sarcoma), venous thrombosis and unilateral pulmonary vein stenosis due to mediastinal fibrosis. (bmj.com)
  • We sought to develop a regimen that might successfully suppress myofibroblastic proliferation in infants and children with progressive pulmonary vein stenosis. (knowcancer.com)
  • A number of factors need to be considered when proposing novel treatment options for patients with multivessel pulmonary vein stenosis. (knowcancer.com)
  • Over the last five years, methotrexate and vinblastine have been used to treat 9 children with recurrent desmoid tumor, a lesion similar although not identical to the abnormality present in patients with pulmonary vein stenosis. (knowcancer.com)
  • The diagnosis must be consistent with multivessel pulmonary stenosis. (knowcancer.com)
  • There must be evidence of severe pulmonary vein stenosis in at least two pulmonary veins. (knowcancer.com)
  • Congenital pulmonary vein stenosis in an adult patient treated with transcatheter balloon angioplasty. (biomedsearch.com)
  • Congenital pulmonary vein stenosis (PVS) is a very rare cardiac malformation and commonly associated with cardiac or extracardiac abnormalities. (biomedsearch.com)
  • The most important complications in RF and cryoballoon PVI have been pulmonary vein (PV) stenosis, thrombi and (silent) stroke, tamponade and damage to surrounding tissues. (utwente.nl)
  • Pulmonary vein stenosis is a very rare and serious condition in which there is a blockage in the blood vessels that bring oxygen-rich blood from the lungs back to the heart. (nih.gov)
  • Stenosis occurs when there is an abnormal thickening and narrowing of the walls of the veins. (nih.gov)
  • Pulmonary vein stenosis is a progressive condition and may lead to total obstruction to a blood vessel. (nih.gov)
  • ClinicalTrials.gov lists trials that are related to Pulmonary vein stenosis. (nih.gov)
  • A registry supports research by collecting of information about patients that share something in common, such as being diagnosed with Pulmonary vein stenosis. (nih.gov)
  • Pulmonary vein stenosis: expression of receptor tyrosine kinases by lesional cells. (harvard.edu)
  • There are two right pulmonary veins, known as the right superior and right inferior veins. (healthline.com)
  • Hello all - I have an OP report where my CT surgeon isolated the bilateral superior and inferior pulmonary veins during CABG surgery using cryoablation. (aapc.com)
  • An inferior and superior main vein drains each lung, so there are four main veins in total. (wikipedia.org)
  • The superior pulmonary veins take an oblique inferomedial course whereas the inferior pulmonary veins run horizontally peripherally before taking a more vertical course. (radiopaedia.org)
  • The ostia of the inferior pulmonary veins are more posteromedial and the left pulmonary veins being more superior. (radiopaedia.org)
  • tributaries include the superior and common basal veins (branches) from the inferior lobe. (thefreedictionary.com)
  • Pulmonary embolectomy (unproven), inferior vena cava filter. (anaesthesiauk.com)
  • Meandering right pulmonary vein to the left atrium and inferior vena cava: the first case with associated anomalies. (springermedizin.at)
  • B) CT angiography images (axial) showed a smaller right pulmonary artery (black arrows) compared with the left pulmonary artery (white arrow). (bmj.com)
  • Findings of pulmonary angiography. (bmj.com)
  • A) Selective right pulmonary artery angiography shows a thin right pulmonary artery (white arrow) and reversed contrast medium flow to the left side (black arrow). (bmj.com)
  • One group of subjects will have the procedure performed with intracardiac echo maneuvers to assess cryoballoon occlusion of the pulmonary vein and will be compared to a group of subjects who will receive the standard medical treatment with fluoroscopy and angiography. (clinicaltrials.gov)
  • If the resulting scan is not diagnostic, pulmonary angiography should be done. (annals.org)
  • Medium probability scan, or a low probability scan with PE symptoms, is unhelpful, and the patient may continue in this instance to have pulmonary angiography. (anaesthesiauk.com)
  • Less invasive than pulmonary angiography, more accurate than chest-X-ray. (anaesthesiauk.com)
  • A detailed visualization of the left atrium (LA) and pulmonary vein (PV) anatomy can be obtained by several different imaging methods including transesophageal or intracardiac echocardiography, rotational angiography, multislice computed tomography (MSCT) or three-dimensional gadolin-enhanced magnetic resonance. (springer.com)
  • VTE is often recurrent, and long-term complications, such as postthrombotic syndrome after a DVT or chronic thromboembolic pulmonary hypertension after a PE, are frequent. (cdc.gov)
  • These changes restrict normal blood flow, which causes high blood pressure in the pulmonary arteries (pulmonary hypertension) and requires the heart to pump harder. (medlineplus.gov)
  • High blood pressure in the blood vessels of the lungs (pulmonary hypertension) will also occur. (rarediseases.org)
  • Very rarely, infants may not show signs of the disorder until weeks or even months after birth, usually when severe, untreatable pulmonary hypertension is noted. (rarediseases.org)
  • In a small portion of people, scarred lung arteries eventually develop into chronic thromboembolic pulmonary hypertension (CTEPH). (ucsd.edu)
  • It is usually found during the newborn period and survival to maturity is very rare due to either of progressive pulmonary hypertension or associated cardiac anomalies. (biomedsearch.com)
  • It would seem that if a person has become old enough to scuba dive and is without symptoms of cardiorespiratory failure or pulmonary hypertension - then diving should be considered after conduction deficits, shunts and pulmonary hypertension have been ruled out. (scuba-doc.com)
  • Echocardiography revealed 46×30 mm pedunculated homogenous mass attached to free wall of the left atrium prolapsing into left ventricle during diastole, severe pulmonary hypertension and right ventricular dysfunction (figure 1). (bmj.com)
  • can ultimately progress to pulmonary hypertension and cor pulmonale. (anaesthesiauk.com)
  • Most commonly, all of the pulmonary veins of one lung are affected, causing pulmonary hypertension and pulmonary arterial hypertension . (nih.gov)
  • Distinguishing pulmonary arterial and venous (A/V) trees via in vivo imaging is a critical first step in the quantification of vascular geometry for purposes of determining, for instance, pulmonary hypertension, detection of pulmonary emboli and more. (spie.org)
  • The veins that carry blood from the lungs into the heart (pulmonary veins) are improperly positioned and may be abnormally bundled together with arteries that carry blood from the heart to the lungs (pulmonary arteries). (medlineplus.gov)
  • The muscle tissue in the walls of the pulmonary arteries may be overgrown, resulting in thicker artery walls and a narrower channel. (medlineplus.gov)
  • The heart pumps oxygen-depleted blood into the lungs via the pulmonary arteries. (healthline.com)
  • CTEPH refers to repeated blood clots in the pulmonary arteries that do not dissolve with medication. (ucsd.edu)
  • The pulmonary veins course in the intersegmental septa and as such do not run with the bronchi like the pulmonary arteries do. (radiopaedia.org)
  • They pass through the lung hilum , antero-inferiorly to the pulmonary arteries, forming a short intrapericardial segment, to drain into the left atrium. (radiopaedia.org)
  • Immediate consequences of large PEs are less from occlusion of pulmonary arteries, and more from release of vasoactive mediators and neurogenic reflexes (e.g. 5HT and thromboxane A2). (anaesthesiauk.com)
  • These cause vasoconstriction of pulmonary and coronary arteries and vasodilation of peripheries. (anaesthesiauk.com)
  • You will also discover that these arteries and veins follow a somewhat unusual pattern. (study.com)
  • This trunk is very short, and it only spans about two inches (or about five centimeters) before it branches off into the right and left pulmonary arteries , which are the arteries that carry deoxygenated blood from the heart to the lungs. (study.com)
  • Failure of the out-pouching of the left atrium to connect with the pulmonary venous plexus may result in persistence of the connections of the pulmonary veins to portions of the systemic venous system, 3 which leads to the various forms of partial or total anomalous pulmonary venous return. (ahajournals.org)
  • There may also be partial anomalous pulmonary venous return (PAPVR) where the pulmonary veins drain into a structure besides the left atrium and rarely total anomalous pulmonary venous return (TAPVR) occurs where there is no drainage of pulmonary veins into the left atrium. (radiopaedia.org)
  • Total anomalous pulmonary venous return is a condition where the veins returning blood to the heart from the lungs do not empty correctly into the arterial circulation. (scuba-doc.com)
  • Pulmonary veins are the four veins that return blood from the lungs to the heart. (heart.org)
  • Pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the left atrium of the heart. (healthline.com)
  • Alveolar capillary dysplasia with misalignment of pulmonary veins (ACD/MPV) is a disorder affecting the development of the lungs and their blood vessels. (medlineplus.gov)
  • The left pulmonary veins connect with the left lung, and the lungs themselves are filled with hollow air sacs called alveoli . (healthline.com)
  • During the physical exam, the blood pressure of your heart and lungs will be checked, and your legs assessed for signs of deep venous thrombosis (e.g., swelling of leg or along a vein). (ucsd.edu)
  • Pulmonary vessels, seen in a dorsal view of the heart and lungs. (wikipedia.org)
  • At some point during my trip, my superficial blood clot must have become so large that it connected to my deep vein system, broke off and traveled to my lungs," Burgess says. (everydayhealth.com)
  • The pulmonary veins drain oxygenated blood from the lungs to the left atrium . (radiopaedia.org)
  • A large pulmonary embolus which blocks the main blood vessels to the lungs can be fatal. (circulationfoundation.org.uk)
  • You can recall this by remembering that 'pulmonary' is the anatomical term that we use when we're referring to the lungs. (study.com)
  • In mice, PVCs extend along the pulmonary vein into the lungs, and are accessible in a lung slice preparation. (open.ac.uk)
  • A rare genetic defect of the pulmonary veins can cause them to drain into the pulmonary circulation in whole or in part, this is known as a total anomalous pulmonary venous connection (or drainage), or partial anomalous pulmonary connection, respectively. (wikipedia.org)
  • Total and partial anomalous pulmonary vein connections are distinguished. (dhzb.de)
  • Bronchial anatomy Transverse section of thorax, showing relations of pulmonary artery. (wikipedia.org)
  • A variance from normal anatomy was discovered intraoperatively, in that the superior pulmonary vein could not be identified. (ctsnet.org)
  • The anomalies of pulmonary vein anatomy occurred more often in pts. (springer.com)
  • Behind the pulmonary artery is the bronchus. (wikipedia.org)
  • When a clot or 'thrombus' breaks off from the vein in the upper thigh or pelvis, it migrates through the veins to the right side of the heart and into the pulmonary artery. (healthcentral.com)
  • coronal maximum intensity projection image, figure 1C ) showed a thin right pulmonary artery (PA), with fewer and thinner branches than normal. (bmj.com)
  • When this right ventricle contracts, it forces the pulmonary semilunar valve to open, allowing a rush of blood into the pulmonary trunk , which is the large artery that leaves the right ventricle. (study.com)
  • During exercise, venous occlusion increases regional pulmonary capillary pressure, likely causing capillary rupture and resulting in bleeding. (nih.gov)
  • Pulmonary vein total occlusion (PVO) is an uncommon complication of pulmonary vein isolation (PVI). (ahajournals.org)
  • Effective pulmonary vein isolation utilizing a cryoballoon depends on complete pulmonary vein occlusion. (jove.com)
  • The point of occlusion can be effectively predicted by direct analysis of pulmonary vein pressure waveform analysis during balloon inflation using a simple and reproducible technique. (jove.com)
  • Pulmonary vein (PV) occlusion is essential for achieving antral contact and PV isolation and is typically assessed by contrast injection. (jove.com)
  • Complete pulmonary vein occlusion as assessed with this technique has been confirmed with concurrent contrast utilization during the initial testing of the technique and has been shown to be highly accurate and readily reproducible. (jove.com)
  • Significant differences between the two techniques include, among others, the requirement of complete pulmonary vein (PV) occlusion with the cryoballoon in order to achieve effective electrical isolation. (jove.com)
  • This case describes a patient who presented with central retinal vein occlusion (CRVO) who was subsequently diagnosed with tuberculosis. (bmj.com)
  • Alveolar capillary dysplasia with misalignment of the pulmonary veins (ACDMPV, OMIM# 265380) is a very rare disorder that is present at birth (congenital). (rarediseases.org)
  • Mayo Clinic doctors perform pulmonary vein isolation procedures using the latest and most advanced technology. (mayoclinic.org)
  • This 3D medical animation depicting Deep Vein Thrombosis (DVT or Deep Venous Thrombosis) begins by showing a blood clot forming in a lower leg vein. (doereport.com)
  • In a paper , published in 2010, it was estimated that blood clots in the veins are "a major public health problem that affects an estimated 300,000-600,000 individuals in the United States each year. (medicalnewstoday.com)
  • According to the CDC , deep vein clots are a serious condition that is underdiagnosed but preventable. (medicalnewstoday.com)
  • Superficial 'spider veins' that discolor the legs (called telangiectasia) and may to some people be unsightly, are not varicose veins, and do not cause blood clots, thrombophlebitis, or pulmonary emboli. (healthcentral.com)
  • Thrombophlebitis is an inflammatory condition in which the vein has been injured and as a result of this injury accumulates clots within it. (healthcentral.com)
  • We were able to reduce the number of clots and pulmonary emboli initially by doing foot exercises that started right after surgery. (healthcentral.com)
  • How taking a road trip set the stage for one woman's journey with deadly vein clots - and what you can learn from it. (everydayhealth.com)
  • Clots in deep veins can cause significant morbidity or mortality. (arupconsult.com)
  • Additionally, ostia of the right superior pulmonary vein were unclear, and pulmonary arterial systolic pressure was normal. (bmj.com)
  • We measured the following variables: (1) distance between the ostia of the pulmonary veins (PVs) and the ipsilateral esophageal border, (2) presence of a pericardial fat pad around each PV, and (3) contact width/length and presence of a fat pad between the LA and the esophagus. (springer.com)
  • Right additional (middle) pulmonary vein was the most important anomaly detected in AF patients as well as enlargered diameters of the LA and PV ostia. (springer.com)
  • Anatomic varations of left atrium such as common ostia, additional pulmonary vein or early branching are common and previously described. (springer.com)
  • Normative analysis of pulmonary vein drainage patterns on multidetector CT with measurements of pulmonary vein ostial diameter and distance to first bifurcation. (radiopaedia.org)
  • Deep vein thrombosis (DVT) is a condition in which a blood clot develops in the deep veins, most commonly in the lower extremities. (cdc.gov)
  • DVT is a blood clot in a vein, usually in the lower leg, thigh, or pelvis, which partially or totally blocks the flow of blood. (drugs.com)
  • however, in DVT a clot forms inside a deep vein, usually in the lower limbs. (hematology.org)
  • In the hospital emergency department in Ouray, Colorado, Burgess was diagnosed with a superficial vein blood clot - a clot just below the surface of the skin - in her leg. (everydayhealth.com)
  • As the road trip continued, the group stopped in another hospital emergency department, where Burgess was told her superficial vein blood clot was getting bigger, but that she would feel better in the morning after a dose of aspirin and a painkiller. (everydayhealth.com)
  • But if your circulation becomes sluggish, which can happen after you sit for hours without moving, a gel-like clot can form inside the veins. (everydayhealth.com)
  • If a blood clot develops in a deep vein, usually in the legs, it's known as deep vein thrombosis (DVT). (everydayhealth.com)
  • As red blood cells flow through the vein, slower moving cells and other blood elements accumulate on the venous valves, creating a stationary blood clot, or thrombus, blocking the blood flow in the vein. (doereport.com)
  • Deep vein thrombosis (DVT) is a blood clot in a vein and usually forms in a leg vein. (rbht.nhs.uk)
  • The success rate for a single pulmonary vein ablation procedure depends on several factors. (clevelandclinic.org)
  • A diagnosis of congenital unilateral pulmonary vein atresia (CUPVA) was made. (bmj.com)
  • Medical records and catheterization reports were reviewed for: symptoms, flow to affected lung quadrant, time from PVI to diagnosis of PVO, anatomic characteristics of occluded veins, and procedural details. (ahajournals.org)
  • Congenitally absent pulmonary veins are a rare phenomenon and the diagnosis is often missed or delayed. (journals.co.za)
  • When children present with haemoptysis and/or recurrent respiratory infections with no obvious underlying cause, absence of the pulmonary veins must be part of the differential diagnosis. (journals.co.za)
  • Electrical Activity of the Mouse Pulmonary Vein Myocardium. (biomedsearch.com)
  • The present study revealed that the mouse pulmonary vein myocardium shows diverse electrical activity, which is influenced by autonomic neurotransmitters. (biomedsearch.com)
  • If the connection between the left atrium and the pulmonary veins fails to occur at a time in development after connections of the pulmonary venous system to the systemic venous system have become obliterated, the result is the very rare condition of complete pulmonary vein agenesis. (ahajournals.org)
  • 3 Affected patients most often become symptomatic in the first few months to years of life, frequently have 1 or more additional cardiac anomalies, and have no active inflammation in or around the involved segments of vein. (ahajournals.org)
  • The investigators prospectively investigate the differences between contact-force guided pulmonary vein isolation (PVI) and conventional pulmonary vein isolation in patients with paroxysma. (bioportfolio.com)
  • Patients with severely hypoplastic veins had staged intervention with initial balloon angioplasty followed by stenting 2-4 months later to allow for vessel growth. (ahajournals.org)
  • In 35 patients, a 12-mg bolus resulted in AV block and 16/155 (10 %) veins exhibited reconnection requiring additional ablation. (springer.com)
  • Two patients with partial absence of the right and left pulmonary veins respectively are descriptionbed. (journals.co.za)
  • Increase pulmonary arterial pressure leading to right ventricular dilatation. (anaesthesiauk.com)
  • Right pulmonary venous drainage was not visible. (bmj.com)
  • During the procedure, it was important to preserve the aberrant vein so as to not disturb the drainage of the remaining segments. (ctsnet.org)
  • People with varicose veins, certain cancers, and hereditary or acquired clotting disorders are also more likely to suffer from pulmonary emboli. (healthcentral.com)
  • According to recent statistics more than 600,000 people in the US have pulmonary emboli each year, and more than 60,000 die. (healthcentral.com)
  • Small pulmonary emboli may cause chest pain, and sometimes coughing up of blood. (circulationfoundation.org.uk)
  • Multiple or larger pulmonary emboli may cause breathlessness. (circulationfoundation.org.uk)
  • The majority are caused by dislodged deep vein thrombi in the legs or pelvis, but emboli can also consist of amniotic tissue, fat, nitrogen or parasites. (anaesthesiauk.com)
  • Acute procedural success is defined as confirmation of entrance block in treated pulmonary veins (PV) after adenosine and/or isoproterenol challenge (with or without the use of a focal catheter). (clinicaltrials.gov)
  • After pulmonary vein isolation, 20mg Iv adenosine will be given to treatment group, will evaluate pulmonary vein reconnection. (clinicaltrials.gov)
  • In the caudodorsal regions, pulmonary vein wall remodeling is associated with hemosiderin accumulation, bronchial circulation angiogenesis, and fibrosis of the alveolar interstitium, bronchovascular bundle, septa, and pleura. (nih.gov)
  • Two main pulmonary veins emerge from each lung hilum, receiving blood from three or four bronchial veins apiece and draining into the left atrium. (wikipedia.org)
  • There is extensive communication with deep bronchial veins within the lung and with the superficial bronchial veins at the hilum. (radiopaedia.org)
  • The right pulmonary veins pass behind the right atrium and another large blood vessel known as the superior vena cava. (healthline.com)
  • In both, the connection of the pulmonary veins is abormal, either to a systemic vein or directly into the right atrium. (dhzb.de)
  • They are born with the pulmonary veins draining into the right atrium instead of the usual left auricle. (scuba-doc.com)
  • This differentiates the pulmonary veins from other veins in the body, which are used to carry deoxygenated blood from the rest of the body back to the heart. (healthline.com)
  • As part of the pulmonary circulation they carry oxygenated blood back to the heart, as opposed to the veins of the systemic circulation which carry deoxygenated blood. (wikipedia.org)
  • The patient presented with bilateral adenocarcinoma, therefore an apical and posterior segmentectomy was the procedure of choice in order to conserve pulmonary tissue and function. (ctsnet.org)
  • This occurs when material lodges in the pulmonary circulation, impeding pulmonary blood flow. (anaesthesiauk.com)
  • The following may be signs and symptoms of a deep vein thrombosis. (medicalnewstoday.com)
  • Symptoms, quadrant flow, and status of the vein at last follow-up were ascertained. (ahajournals.org)
  • If you have any of these symptoms, don't wait for an appointment with one of our pulmonary specialists - go to the ER ! (ucsd.edu)
  • People who spend most of the day on their feet may develop worse symptoms from these veins then people who do not. (healthcentral.com)
  • What is deep vein thrombosis? (medicalnewstoday.com)
  • Gel-like clumps of congealed blood can form in one of the veins, most commonly deep in the leg. (medicalnewstoday.com)
  • This is a deep vein thrombosis (DVT). (medicalnewstoday.com)
  • NHS Choices: "Deep vein thrombosis - Complications. (webmd.com)
  • Deep vein thrombosis, or DVT: it's more than just a one-time complication from taking a long plane ride. (medicalxpress.com)
  • As opposed to the superficial problem, deep veins in the leg can also become inflamed and a sourced of clotting. (healthcentral.com)
  • ClotCare is a member organization of the Coalition to Prevent Deep Vein Thrombosis. (clotcare.com)
  • Click here to learn more about the Coalition to Prevent Deep Vein Thrombosis and DVT Awareness Month, which is held each March. (clotcare.com)
  • People have become concerned about the risks of deep vein thrombosis (DVT) during long air flights, following reports in the press of occasional deaths due to fatal pulmonary embolisms. (circulationfoundation.org.uk)
  • Deep vein thrombosis (DVT) means thrombosis (clotting) of blood in the deep veins of the legs. (circulationfoundation.org.uk)
  • 2. The thrombosis can cause chronic blockage in the deep veins or damage to their valves, leading to long term swelling and sometimes skin problems at the ankle. (circulationfoundation.org.uk)
  • Why does deep vein thrombosis occur? (circulationfoundation.org.uk)
  • The deep veins lie between the muscles, and muscular activity (moving the legs, walking, or any leg exercise) helps to pump the blood up these veins. (circulationfoundation.org.uk)
  • When the legs are inactive, and particularly when sitting or standing, blood tends to stagnate in the deep veins. (circulationfoundation.org.uk)
  • Who is at risk of deep vein thrombosis? (circulationfoundation.org.uk)
  • Stretching and moving your legs stops blood stagnating in the deep veins of the calf, and is the simplest and most effective thing you can do. (circulationfoundation.org.uk)
  • Nearly two million Americans are affected annually by deep vein thrombosis. (powells.com)
  • Cothera , a subsidiary of United Orthopedic Group , recently launched the VPULSE, a compression and cold therapy therapy system for prevention of deep vein thrombosis (DVT) and pulmonary embolisms (PE), but which can also be used as a device for problematic knees and shoulders. (medgadget.com)
  • Understand the key epidemiologic risk factors associated with major abdominal surgery and how it is related to deep vein thrombosis. (mdtmag.com)