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 Marburg, Germany ✈. Prices on BookingHealth.com - booking treatment online!
Anomalous pulmonary venous connection (partiel) | Surgical correction of partiel anomalous pulmonary venous connection. Cardiosurgery: Treatment in Tuebingen, 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
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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 ...
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 ...
TY - JOUR. T1 - Dilated left atrium and pulmonary veins in patients with calcified coronary artery. T2 - A potential contributor to the genesis of atrial fibrillation. AU - Pan, Nan Hung. AU - Tsao, Hsuan Ming. AU - Chang, Nen Chung. AU - Lee, Chih Ming. AU - Chen, Yi Jen. AU - Chen, Shih Ann. PY - 2009/2. Y1 - 2009/2. N2 - Ischemic Remodeling of Left Atrium and Pulmonary Vein. Introduction: Coronary artery disease (CAD) is an important etiology of atrial fibrillation (AF). Coronary artery calcification is a marker of coronary atherosclerosis and coronary events. The purpose of this study was to investigate whether larger left atrium (LA) and pulmonary veins (PVs) were seen by multidetector computed tomography (MDCT) scans in those patients with higher coronary calcium scores. Methods and Results: A total of 166 patients undergoing MDCT for general check-up (n = 128, 77%) or suspected CAD (n = 38, 23%) were enrolled and divided into a control (calcium score = 0, n = 60), medium calcium score ...
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 ...
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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.
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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 ...
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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 ...