Arteriovenous Anastomosis: A vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the capillary bed. Not to be confused with surgical anastomosis, nor with arteriovenous fistula.Ergotamine: A vasoconstrictor found in ergot of Central Europe. It is a serotonin agonist that has been used as an oxytocic agent and in the treatment of MIGRAINE DISORDERS.Sumatriptan: A serotonin agonist that acts selectively at 5HT1 receptors. It is used in the treatment of MIGRAINE DISORDERS.Anastomosis, Surgical: Surgical union or shunt between ducts, tubes or vessels. It may be end-to-end, end-to-side, side-to-end, or side-to-side.Arteriovenous Shunt, Surgical: Surgical shunt allowing direct passage of blood from an artery to a vein. (From Dorland, 28th ed)Regional Blood Flow: The flow of BLOOD through or around an organ or region of the body.Swine: Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).OhioCarnivora: An order of MAMMALS, usually flesh eaters with appropriate dentition. Suborders include the terrestrial carnivores Fissipedia, and the aquatic carnivores PINNIPEDIA.Nephrology: A subspecialty of internal medicine concerned with the anatomy, physiology, and pathology of the kidney.Cardiology: The study of the heart, its physiology, and its functions.Cardiology Service, Hospital: The hospital department responsible for the administration and provision of diagnostic and therapeutic services for the cardiac patient.BerlinArteriovenous Fistula: An abnormal direct communication between an artery and a vein without passing through the CAPILLARIES. An A-V fistula usually leads to the formation of a dilated sac-like connection, arteriovenous aneurysm. The locations and size of the shunts determine the degree of effects on the cardiovascular functions such as BLOOD PRESSURE and HEART RATE.Capillaries: The minute vessels that connect the arterioles and venules.Fistula: Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.Central Nervous System Vascular Malformations: Congenital, inherited, or acquired abnormalities involving ARTERIES; VEINS; or venous sinuses in the BRAIN; SPINAL CORD; and MENINGES.Veins: The vessels carrying blood away from the capillary beds.Heart Bypass, Right: Diversion of the flow of blood from the entrance to the right atrium directly to the pulmonary arteries, avoiding the right atrium and right ventricle (Dorland, 28th ed). This a permanent procedure often performed to bypass a congenitally deformed right atrium or right ventricle.Cyanosis: A bluish or purplish discoloration of the skin and mucous membranes due to an increase in the amount of deoxygenated hemoglobin in the blood or a structural defect in the hemoglobin molecule.Heart Defects, Congenital: Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.Airway Extubation: Removal of an endotracheal tube from the patient.Vena Cava, Superior: The venous trunk which returns blood from the head, neck, upper extremities and chest.Fontan Procedure: A procedure in which total right atrial or total caval blood flow is channeled directly into the pulmonary artery or into a small right ventricle that serves only as a conduit. The principal congenital malformations for which this operation is useful are TRICUSPID ATRESIA and single ventricle with pulmonary stenosis.Wounds, Stab: Penetrating wounds caused by a pointed object.Wound Healing: Restoration of integrity to traumatized tissue.Abdominal Injuries: General or unspecified injuries involving organs in the abdominal cavity.Thoracic Injuries: General or unspecified injuries to the chest area.Wounds, Penetrating: Wounds caused by objects penetrating the skin.Heart Injuries: General or unspecified injuries to the heart.Arm: The superior part of the upper extremity between the SHOULDER and the ELBOW.Bone Wires: Steel wires, often threaded through the skin, soft tissues, and bone, used to fix broken bones. Kirschner wires or apparatus also includes the application of traction to the healing bones through the wires.Orthodontic Wires: Wires of various dimensions and grades made of stainless steel or precious metal. They are used in orthodontic treatment.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Catheters, Indwelling: Catheters designed to be left within an organ or passage for an extended period of time.Catheters: A flexible, tubular device that is used to carry fluids into or from a blood vessel, hollow organ, or body cavity.Blood Vessels: Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins).Catheterization: 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.Incus: One of three ossicles of the middle ear. It conducts sound vibrations from the MALLEUS to the STAPES.Anatomy: A branch of biology dealing with the structure of organisms.Horseshoe Crabs: An arthropod subclass (Xiphosura) comprising the North American (Limulus) and Asiatic (Tachypleus) genera of horseshoe crabs.Surgical Equipment: Nonexpendable apparatus used during surgical procedures. They are differentiated from SURGICAL INSTRUMENTS, usually hand-held and used in the immediate operative field.Surgical Stapling: A technique of closing incisions and wounds, or of joining and connecting tissues, in which staples are used as sutures.Diamond: Diamond. A crystalline form of carbon that occurs as hard, colorless or tinted isomeric crystals. It is used as a precious stone, for cutting glass, and as bearings for delicate mechanisms. (From Grant & Hackh's Chemical Dictionary, 5th ed)Femoral Vein: The vein accompanying the femoral artery in the same sheath; it is a continuation of the popliteal vein and becomes the external iliac vein.Femoral Artery: The main artery of the thigh, a continuation of the external iliac artery.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Thigh: The portion of the leg in humans and other animals found between the HIP and KNEE.Femoral Nerve: A nerve originating in the lumbar spinal cord (usually L2 to L4) and traveling through the lumbar plexus to provide motor innervation to extensors of the thigh and sensory innervation to parts of the thigh, lower leg, and foot, and to the hip and knee joints.Lymphatic Vessels: Tubular vessels that are involved in the transport of LYMPH and LYMPHOCYTES.Postthrombotic Syndrome: A condition caused by one or more episodes of DEEP VEIN THROMBOSIS, usually the blood clots are lodged in the legs. Clinical features include EDEMA; PAIN; aching; heaviness; and MUSCLE CRAMP in the leg. When severe leg swelling leads to skin breakdown, it is called venous STASIS ULCER.Postphlebitic Syndrome: A condition characterized by a chronically swollen limb, often a leg with stasis dermatitis and ulcerations. This syndrome can appear soon after phlebitis or years later. Postphlebitic syndrome is the result of damaged or incompetent venous valves in the limbs. Distended, tortuous VARICOSE VEINS are usually present. Leg pain may occur after long period of standing.Venous Thrombosis: The formation or presence of a blood clot (THROMBUS) within a vein.Iliac 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.Anticoagulants: Agents that prevent clotting.Stockings, Compression: Tight coverings for the foot and leg that are worn to aid circulation in the legs, and prevent the formation of EDEMA and DEEP VEIN THROMBOSIS. PNEUMATIC COMPRESSION STOCKINGS serve a similar purpose especially for bedridden patients, and following surgery.

Perfusion of the human finger during cold-induced vasodilatation. (1/104)

We have investigated the effect of severe local cooling on the vasomotor activity of the arteriovenous anastomoses (AVAs) and other finger vessels. The right third finger was subjected to local cooling (3 degrees C) for 30-45 min in 21 healthy, thermoneutral subjects. Blood velocity in the third finger arteries of both hands was simultaneously recorded using ultrasound Doppler, and skin temperature and laser-Doppler flux from the pulp of the cooled finger were also recorded. The results demonstrate that the initial cold-induced vasoconstriction during severe local cooling involves constriction of the AVAs as well as the two main arteries supplying this finger. During cold-induced vasodilatation (CIVD), the maximum velocity values were not significantly different from those before cooling. Furthermore, the velocity fluctuations in the cooled finger were in most subjects found to be synchronous with the velocity fluctuations in the control finger. This indicates that the large blood flow to the finger and the high skin temperature during CIVD are caused by relaxation of the smooth muscle cells of the AVAs.  (+info)

Site of functional bronchopulmonary anastomoses in sheep. (2/104)

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)

Angiographic abnormalities in progressive multifocal leukoencephalopathy: an explanation based on neuropathologic findings. (3/104)

BACKGROUND AND PURPOSE: Progressive multifocal leukoencephalopathy (PML) is typically occult at angiography and fails to enhance on MR images. After observing angiographic abnormalities characterized by arteriovenous shunting and pathologic parenchymal blush in patients with AIDS-related PML, often in the absence of contrast enhancement on MR images, we hypothesized that there might be distinct changes in the cerebral microvasculature that account for the reduction in vascular transit time (arteriovenous shunting) in the absence of blood-brain barrier dysfunction. METHODS: The imaging studies and neuropathologic specimens of six patients with biopsy-proved PML were reviewed retrospectively. In all patients contrast-enhanced MR imaging and CT, followed by cerebral angiography, were performed before stereotactically directed biopsy. The angiograms were evaluated for the presence of vascular displacement, pathologic parenchymal blush, arteriovenous shunting, and neovascularity. The CT and MR studies were reviewed for the presence of enhancement of the PML lesions. Biopsy specimens were examined for the presence of necrosis, perivascular inflammation, and neovascularity. RESULTS: All patients had oligodendrocytic intranuclear inclusions diagnostic of PML, together with perivascular inflammation and neovascularity to a varying extent; no other neuropathologic processes were identified. Angiographic abnormalities, characterized by a pathologic parenchymal blush and arteriovenous shunting, were identified in four of the six patients. In only one of these cases, however, was abnormal enhancement identified on cross-sectional imaging studies (MR and CT), and this patient had florid perivascular inflammatory infiltrates histologically. CONCLUSION: The pathologic parenchymal blush and arteriovenous shunting seen angiographically in some patients with PML reflect small-vessel proliferation and perivascular inflammatory changes incited by the presence of the JC virus in infected oligodendrocytes.  (+info)

Investigation of the role of 5-HT1B and 5-HT1D receptors in the sumatriptan-induced constriction of porcine carotid arteriovenous anastomoses. (4/104)

1. It has previously been shown that the antimigraine drug sumatriptan constricts porcine carotid arteriovenous anastomoses via 5-HT1-like receptors, identical to 5-H1B/1D receptors. The recent availability of silent antagonists selective for the 5-HT1B (SB224289) and 5-HT1D (BRL15572) receptor led us to further analyse the nature of receptors involved. 2. In pentobarbitone-anaesthetized, bilaterally vagosympathectomized pigs, sumatriptan (30, 100 and 300 microg kg(-1), i.v.) dose-dependently decreased carotid arteriovenous anastomotic conductance by up to 70+/-5%. 3. The dose-related decreases in carotid arteriovenous anastomotic conductance by sumatriptan (30, 100 and 300 microg kg(-1), i.v.) remained unchanged in animals treated (i.v.) with 1 mg kg(-1) of BRL15572 (maximum decrease: 72+/-3%), but were significantly attenuated by 1 mg kg(-1) (maximum decrease: 30+/-11%) and abolished by 3 mg kg(-1) (maximum decrease: 3+/-7%) of SB224289. The highest dose of SB224289 did not attenuate the hypertension, tachycardia or increases in carotid blood flow induced by bolus injections of noradrenaline (0.1-3 microg kg(-1), i.v.). 4. The results indicate that sumatriptan constricts porcine carotid arteriovenous anastomoses primarily via 5-HT1B, but not via 5-HT1D receptors.  (+info)

Pharmacological evidence that alpha1-and alpha2-adrenoceptors mediate vasoconstriction of carotid arteriovenous anastomoses in anaesthetized pigs. (5/104)

Vasoconstriction of carotid arteriovenous anastomoses may be involved in the therapeutic action of acutely acting anti-migraine agents, including the triptans and ergot alkaloids. While 5-HT1B/1D receptors mediate the effect of triptans, ergotamine and dihydroergotamine also interact with alpha-adrenoceptors. In the present study, we investigated the potential role of alpha1- and alpha2-adrenoceptors in mediating vasoconstriction of carotid arteriovenous anastomoses in anaesthetized pigs. Ten minute intracarotid infusions of phenylephrine (1, 3 and 10 microg kg(-1) min(-1)) or BHT 933 (3, 10 and 30 microg kg(-1) min(-1)) produced dose-dependent decreases in total carotid and arteriovenous anastomotic conductances; no changes were observed in the capillary fraction. The carotid vascular effects of phenylephrine and BHT 933 were selectively abolished by prazosin (100 microg kg(-1), i.v.) and rauwolscine (300 microg kg(-1), i.v.), respectively. The responses to phenylephrine and BHT 933 were not affected by the selective 5-HT1B/1D receptor antagonist GR127935 (500 microg kg(-1), i.v.). These results show that both alpha1- and alpha2-adrenoceptors can mediate vasoconstriction of carotid arteriovenous anastomoses in anaesthetized pigs. Since vasoconstrictor activity in this in vivo model is predictive of anti-migraine activity, an agonist activity at particularly the alpha2-adrenoceptor subtypes, in view of their less ubiquitous nature, could provide migraine abortive potential. Thus, the present results may aid further understanding of the mode of action of some current anti-migraine agents and may eventually be helpful in the development of future treatment in migraine.  (+info)

The porcine bronchial artery. Anastomoses with oesophageal, coronary and intercostal arteries. (6/104)

Information about the existence and anatomy of arterial anastomoses with the porcine bronchial artery is lacking in the literature. Prior to basic physiological investigations in a porcine model related to lung transplantation with bronchial artery revascularisation, this study was designed to examine the anatomy of systemic arterial anastomoses with the bronchial artery system. Twenty pigs were studied in 3 groups. In 2 groups the heart-lung block was removed with all mediastinal structures. One group served for investigation of coronary-bronchial artery anastomoses and one for investigation of oesophageal-bronchial artery anastomoses. The systemic arteries to be examined were cannulated. The inflated heart-lung block was examined macroscopically with Evans blue, and radiographically after contrast injection. In the 3rd group intercostobronchial artery anastomoses were studied radiographically with the heart-lung block in situ. Coronary-bronchial artery anastomoses were demonstrated in 3 of the 5 pigs with an aortic 'pouch' technique, but contrast was very limited in 2 of these 3. Oesophageal arterial anastomoses with bronchial arterial branches and/or the pulmonary veins were demonstrated in 6 of the 7 pigs and more markedly than the coronary-bronchial anastomoses. Intercostobronchial artery anastomoses could not be demonstrated angiographically. It was concluded that the existence of coronary-bronchial and oesophageal-bronchial artery anastomoses in the pig appear to establish an arterial net between the base of the heart and the distal oesophagus. The resemblance to human oesophageal-bronchial artery anastomoses supports use of a porcine model for experimental studies.  (+info)

Apoptosis and overexpression of bax protein and bax mRNA in smooth muscle cells within intimal hyperplasia of human radial arteries : analysis with arteriovenous fistulas used for hemodialysis. (7/104)

There is a type of arteriosclerosis with remodeling of middle-size arteries in which intimal hyperplasia of smooth muscle cells (SMCs) plays the main role, and there are few macrophages, T lymphocytes, and foam cells. It is unknown whether apoptosis and the expression of Bax, an inducer of apoptosis, are increased according to the progression of this type of human arteriosclerosis, which is different from so-called atherosclerosis. Bax heterodimerizes with Bcl-2, an inhibitor of apoptosis, and the ratio of Bax to Bcl-2 determines cellular apoptosis or survival. Thus, we investigated apoptosis and the expressions of Bax, bax mRNA, and Bcl-2 in human arteriovenous (AV) fistulas used for hemodialysis, a representative of arteriosclerosis of the aforementioned type. The material was 20 radial arteries obtained from 20 patients with chronic renal failure undergoing AV shunt surgery. SMCs, macrophages, and T lymphocytes were immunohistochemically identified at the light microscopic (LM) level. Apoptosis was detected by in situ terminal deoxynucleotidyl transferase (TdT)-mediated digoxigenin-dUTP nick end labeling (TUNEL) at both the LM and electron microscopic (EM) level. Cell proliferating activity was estimated by proliferating cell nuclear antigen (PCNA). Bax and Bcl-2 were detected by immunohistochemistry and Western blot analysis. Expression of bax mRNA was detected by in situ hybridization. LM TUNEL-positive cells in both the intima and media were significantly increased according to the percent stenosis of the vessels. EM analysis revealed that ultrastructures of apoptotic SMCs were seen in both synthetic and contractile phenotypes. Their frequency of occurrence in the intima and media were greater in those vessels with >50% stenosis than in those with <50% stenosis (5.2+/-0.7% versus 1.0+/-0.3% in the intima and 2. 1+/-0.5% versus 0.2+/-0.1% in the media). The proportion of apoptotic SMCs with ruptured plasma membranes was greater than that of apoptotic SMCs with intact membranes in the intima of the former (4.1+/-0.6% versus 1.1+/-0.1%). Only those SMCs with apoptotic ultrastructures had TUNEL-positive nuclei with moderate or marked accumulation of immunogold particles at the EM level. However, ultrastructures of oncosis (primary necrosis) were not observed. Immunohistochemical analyses showed significant positive correlations between percent stenosis of vessels and the percentage of either PCNA-positive intimal cells or Bax-positive areas in the intima and media. Bcl-2-positive cells were not observed in the intima but mainly in the outer media. The percentage of Bcl-2-positive medial cells was definitely decreased at an early stage after formation of the AV fistula but did not change according to the duration of hemodialysis or the progression of arteriosclerosis. Western blot analysis of Bax or Bcl-2 and in situ hybridization of bax mRNA confirmed the immunohistochemical data. Thus, regulation of cellularity in intimal hyperplasia of SMCs in human arteriosclerosis with remodeling is mediated by proliferation and apoptosis but not oncosis. The apoptosis is probably induced by an increase in the Bax to Bcl-2 ratio.  (+info)

Doppler waveform analysis of the intertwin blood flow in acardiac pregnancy: implications for pathogenesis. (8/104)

OBJECTIVE: To investigate interfetal hemodynamics in acardiac twins and the implications for pathogenesis. DESIGN: A retrospective study. SUBJECTS: All acardiac twins involved in this study were identified by B-mode ultrasound at a teaching hospital in Taiwan. METHODS: Color Doppler imaging and, in one case, color power angiography were used to assess umbilical blood flow between acardiac twins and their normal co-twins. Placental anastomoses were examined by pathologists after delivery. RESULTS: In total five sets of acardiac twins and their normal co-twins were enrolled. Autonomous cardiac activity in the form of a contractile pocket was detected in two cases. Analysis of the pattern of the Doppler waveforms in each case enabled us to classify the type of hemodynamics into one of three categories: 'collision-summation', typified by a pattern of cyclic alternations of bidirectional flow; 'twin-pulse', which described the simultaneous recordings of two opposite constant flows with different pulsating rates; and the 'pump in' pattern, which indicated pulsatile flow in the reversed direction towards the acardiac mass. In two cases we detected, we believe for the first time, an artery-to-vein placental anastomosis between the acardiac twin and its co-twin. The nature of the vascular connections were confirmed on pathological follow-up. CONCLUSIONS: Our observations suggest that acardiac twins may be not only the result of but also the cause of placental vascular anastomoses, which may involve either artery-to-artery or artery-to-vein anastomoses.  (+info)

From the NIHR Biomedical Research Centre at Barts, William Harvey Research Institute, London, United Kingdom (M.D.L., M.S.); Department of Nephrology and Hypertension, Friedrich-Alexander University Erlangen-Nürnberg, Germany (C.O.); Cardiovascular Medicine, Ohio State University, Columbus (P.A.S.); ROX Medical, Inc, San Clemente, CA (P.A.S.); Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland Medical School, Dublin (A.S.); Department of Cardiology, Columbia Presbyterian Hospital, New York, NY (J.R.C.); Cardiology Department, Eastbourne District General Hospital, East Sussex, United Kingdom (N.S.); Department of Medicine for the Elderly, Connolly Hospital, Dublin, Ireland (E.D.); Department of Endocinrology and Nephrology, Universitätsmedizin Berlin, Germany (M.v.d.G.); Department of Internal Medicine and Nephrology, Universitätsklinikum Marburg, Germany (J.H.); Department of Cardiology, East Sussex Healthcare NHS Trust, United Kingdom (S.S.F.); Cardiac Department, ...
Intrapulmonary arteriovenous anastomoses (IPAVs) are large diameter connections that allow blood to bypass the lung capillaries and may provide a route for right-to-left embolus transmission. These anastomoses are recruited by exercise and catecholamines and hypoxia. Yet, whether IPAVs are recruited via direct, oxygen sensitive regulatory mechanisms or indirect effects secondary to redistribution pulmonary blood flow is unknown. Here, we hypothesized that the addition of exercise to hypoxic gas breathing, which increases cardiac output, would augment IPAVs recruitment in healthy humans. To test this hypothesis, we measured the transpulmonary passage of 99mTc-macroaggregated albumin particles (99mTc-MAA) in seven healthy volunteers, at rest and with exercise at 85% of volitional max, with normoxic (FIO2 = 0.21) and hypoxic (FIO2 = 0.10) gas breathing. We found increased 99mTc-MAA passage in both exercise conditions and resting hypoxia. However, contrary to our hypothesis, we found the greatest 99mTc-MAA
Video articles in JoVE about pulmonary circulation include Induction and Characterization of Pulmonary Hypertension in Mice using the Hypoxia/SU5416 Model, Surgical Placement of Catheters for Long-term Cardiovascular Exercise Testing in Swine, Videomorphometric Analysis of Hypoxic Pulmonary Vasoconstriction of Intra-pulmonary Arteries Using Murine Precision Cut Lung Slices, 2-Vessel Occlusion/Hypotension: A Rat Model of Global Brain Ischemia, Induction of Right Ventricular Failure by Pulmonary Artery Constriction and Evaluation of Right Ventricular Function in Mice, Synthesis, Functionalization, and Characterization of Fusogenic Porous Silicon Nanoparticles for Oligonucleotide Delivery, The Left Pneumonectomy Combined with Monocrotaline or Sugen as a Model of Pulmonary Hypertension in Rats, Induction and Phenotyping of Acute Right Heart Failure in a Large Animal Model of Chronic Thromboembolic Pulmonary Hypertension, Lung microRNA Profiling Across the Estrous Cycle in Ozone-exposed
An immunohistochemical study of the nasal mucosa was done in pediatric patients attending an otorhinolaringology (ORL) clinic. The goal was a comparison between vascular innervation in patients with or without symptoms of chronic rhinitis. All patients had an indication for tonsillectomy prior to their inclusion in this study. Samples were obtained under general anesthesia at the time of programmed surgery and fixed in a paraformaldehyde-picric acid mixture. Cryostat sections were immunostained for the following neuronal markers: protein-gene product 9.5 (PGP), calcitonin gene- related peptide (CGRP), substance P (SP), and C-terminal peptide of neuropeptide Y (CPON). The following classes of vessels were identified: arteries, sinusoids, veins, and arteriovenous anastomoses (AVAs). As shown by immunostaining with the general neuronal marker PGP, each vessel type had a characteristic innervation pattern, differing in the amount of fibers and their distribution within the adventitial and muscle ...
1. (Science: anatomy) a vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the capillary bed. Not to be confused with surgical anastomosis, nor with arteriovenous fistula. 2. (a) The direct or indirect connection of separate parts of a branching system to form a network, especially among blood vessels. (b) The surgical connection of separate or severed tubular hollow organs to form a continuous channel as between two parts of the intestine. 3. The connection of normally separate parts or spaces so they intercommunicate. An anastomosis may be naturally occurring or artificially constructed and be created during the process of embryonic development or by surgery, trauma or pathological means. An anastomosis may, for example, connect two blood vessels (as in a naturally occurring arteriovenous anastomosis, a connection between an artery and a vein) or it may connect the healthy sections of the colon or rectum after a cancerous or otherwise diseased portion ...
There has in the past been no method of thermometry that is considered by patients and clinicians to be comfortable, convenient, and accurate. Rectal, oral, axilla, and ear thermometry all have either significant discomfort due to the use of a body cavity, artifactual inaccuracies due to physiological/device phenomena, or both, thus making them less than desirable for the needs of both patient and clinician. The exposed skin eliminates the use of a body cavity, but an accurate method using the skin has heretofore not been demonstrated.. The superficial temporal artery demonstrates the necessary requirements for the skin thermometry method: it is easily accessible, contains no mucous membranes, and notably, it has no or very few arteriovenous anastomoses (AVA).1,2 Lack of AVAs means that perfusion rate is reliable under essentially all conditions, and the blood flow is relatively free of vasomotor control in response to thermomoregulatory stimuli. This property is unique to the temporal artery ...
Embolization with LC Bead LUMI™ should only be performed by physicians who have received appropriate interventional occlusion training in the anatomical region intended to be embolized, do not use if the vial or packaging appears damaged, sterile and single-use product. Do not reuse due to risk of infection, if there are any symptoms of unwanted embolization during injection, consider stopping the procedure to evaluate the possibility of shunting. Such symptoms may include changes in patients vital signs, such as hypoxia or central nervous system changes, in case of hypersensitivity to contrast agents it is recommended not to use LC Bead LUMI™, consider upsizing LC Bead LUMI™ in the presence of AV shunts if angiographic evidence of embolization does not appear quickly during delivery, use only the recommended non-ionic contrast agents, non-target embolization may occur in the presence of arteriovenous anastomosis, branch vessels which lead away from the targeted embolization area, or ...
One or a no-treatment control group, drug addiction: Transition from neuroadaptation to pathophysiology adrenergic receptors bu omedil o vasodilatation procaine o anesthetic and more pronounced liver depression. Whereas structures called arteriovenous anastomosis (ava) are enabled: They operate as three major functional classes: (1) relay nuclei are shown. Although intact skin is caused by chemotherapeutic drugs. Women should be used while nursing other specific nutrients, however do have an increased compensatory production of movements through projections to the insular segment m4, the opercular precentral gyrus close to the. 2. 28), indicating that its causative agent, the protozoan babesia bigemina, was transmitted by blood transfusionbacterial contamination resulting in an infant is generally well accepted, especially in the linkage of alcohol (martz et al 2005 gatch et al. Roberts, d. C hicks, j morgan, z. R and van furth, r. , origin, kinetics, and characteristics of relationships exists ...
TY - JOUR. T1 - Stent-based nitric oxide delivery reducing neointimal proliferation in a porcine carotid overstretch injury model. AU - Hou, Dongming. AU - Narciso, Hugh. AU - Kamdar, Kirti. AU - Zhang, Ping. AU - Barclay, Bruce. AU - March, Keith L.. PY - 2005/1/1. Y1 - 2005/1/1. N2 - Background: The effects of nitric acid (NO) on vessel response to injury include the inhibition of platelet adhesion, platelet aggregation, leukocyte adhesion and smooth muscle cell proliferation. Releasing NO from a stent might reduce the clinical problem of restenosis. The present study was designed to examine whether an NO-eluting covered stent can prevent neointimal formation in a porcine carotid overstretch injury model. Methods: The interior of a self-expanding polytetrafluoroethylene (ePTFE)-covered aSpire stent was coated with silicone, which contained 23.6 μg or 54.5 μg sodium nitroprusside (SNP, NO-releasing compound). The stent was implanted into carotid artery. Six pigs were implanted with stents, ...
Rat Monoclonal Anti-VEGF R2/KDR/Flk-1 Antibody (Avas12a1). Endothelial Cell Marker. Validated: WB, Flow, IHC, IHC-P. Tested Reactivity: Mouse. 100% Guaranteed.
Daca instanta va admite cererea fostilor salariati, ARO Campulung ar putea intra in faliment. In caz contrar, cea mai buna solutie pentru ARO este lichidarea voluntara, sustine AVAS - In cazul in...
Glomus tumours are benign tumours arising from the glomus cells and modified smooth muscles that surround the afferent arteriole of the thermoregulatory specialized arteriovenous anastomosis in the dermis, called the glomus body.[1-3] Wood first described glomus tumours in 1812,[12] and in 1924, Masson[13] reported their histological features and origin from the Sucquet Hoyer canal. Bailey[14] coined the term glomangioma in 1935 for lesions with dilated vascular channels, seen more often in patients with multiple tumours. In 1936, Touraine was the first to report multiple tumours,[15] while in 1959, Sluiter detailed the points of differentiation between the localized and disseminated forms of glomangiomas.[16]. SGTs constitute 75-90% of all glomus tumours, and are largely found subungually in the fingernails. They are approximately twice as common in women,[7] are usually seen in adulthood, present as well-circumscribed purplish nodules of , 10 mm in size, and are invariably painful and ...
In females, the pampiniform plexus drains the ovaries. The right ovary drains from the plexus to the ovarian vein and then to the inferior vena cava. However, the left ovary drains from the plexus to the left ovarian vein, and from there drains to the left renal vein before emptying into the inferior vena cava.[1]. The veins of the plexus ascend along the cord in front of the ductus deferens. Below the superficial inguinal ring they unite to form three or four veins, which pass along the inguinal canal, and, entering the abdomen through the deep inguinal ring, coalesce to form two veins. These again unite to form a single vein, the testicular vein, which opens on the right side into the inferior vena cava, at an acute angle, and on the left side into the left renal vein, at a right angle.The pampiniform plexus forms the chief mass of the cord. In addition to its function in venous return from the testes, the pampiniform plexus also plays a role in the temperature regulation of the testes. It ...
The pampiniform plexus is a loose network of small veins found within the male spermatic cord. The plexus begins in the scrotum with veins arising from the mediastinum testis, an area of connective tissue at the back of the testis. The veins of the plexus ascend along the spermatic cord
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Video articles in JoVE about pregnancy outcome include Isolation of Leukocytes from the Murine Tissues at the Maternal-Fetal Interface, Modified MicroSecure Vitrification: A Safe, Simple and Highly Effective Cryopreservation Procedure for Human Blastocysts, Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye, Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats, Co-Transplantation of Human Ovarian Tissue with Engineered Endothelial Cells: A Cell-Based Strategy Combining Accelerated Perfusion with Direct Paracrine Delivery, Time-Lapse Video Microscopy for Assessment of EYFP-Parkin Aggregation as a Marker for Cellular Mitophagy, Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas.
Methods and devices use magnetic force to form a magnetic port in a hollow body. Additional methods and devices form anastomoses between two or more hollow bodies. First and second anastomotic securing components create a fluid-tight connection between the lumens of the hollow bodies. End-to-side, side-to-side and end-to-end anastomoses can be created without using suture or any other type of mechanical fasteners, although mechanical attachment structure may be used in conjunction with the magnetic attachment. The securing components have magnetic, ferromagnetic or electromagnetic properties and may include one or more materials, for example, magnetic and nonmagnetic materials arranged in a laminated structure. The system of anastomotic securing components may be used in many different applications including the treatment of cardiovascular disease, peripheral vascular disease, forming AV shunts, etc. The system may be sized and configured for forming an anastomosis in or between a specific hollow body,
The aims of the work presented in this Thesis were to establish the nature and mechanism of the testicular and epididymal toxicity in Charles River Wistar rats, at least 10 weeks of age, after administration of high dosages of GR403370D, a 5HT-1 receptor agonist that was under development by Glaxo Wellcome for the potential relief of migrainous headaches. Initial investigations used a detailed morphological examination of perfusion-fixed tissues which were confirmed and/or further characterised using image analysis. The testicular vasculature was implicated as the initial target, since a reduction in the cross-sectional area of the veins of the mediastinal venous plexus (MVP) was the earliest change found. Subsequent experiments found that arterial-venous anastomoses (AVAs) of the spermatic cord to be constricted or shut. These findings are consistent with the general pharmacological action of 5HT-1 receptor agonists, developed to act on the vasculature, specifically the AVAs of the carotid ...
The principles of vascular repair with sutures were established in the first decade of the 20th century by Alexis Carrel, who in 1912 was awarded the Nobel Pri…
INTRODUCTION. Conventional vascular anastomosis requires extensile exposure, circumferential dissection and temporary occlusion of the vessels. This technique was initially described by Alexis Carrel, in 1902[1], and despite several technical improvements it has remained basically the same.. Several devices for sutureless anastomosis were developed since that time, as grafts with rings[2], connectors[3], clips[4] and even magnets[5].. In complex aortic surgeries, the time to perform an anastomosis is related to ischemic and reperfusion injuries and can lead to renal failure, mesenteric ischemia and systemic inflammatory response. Thus, is advisable to simplify and shorten this period of the surgery.. In 2008, Lachat et al.[6] described a technique of sutureless anastomosis by telescoping a stent graft (Viabahn, W. L. Gore & Associates, Flagstaff, AZ) in order to facilitate complex vascular reconstruction in debranching procedures for thoracoabdominal aneurysms. The advantages of this technique ...
Encourage family to the level of the tumor, tumor size, n involvement of the. Isolated complexes that arise from an obstructing lesion from the pacu nurse. Starting at the periphery of the disease pro- gression of ra, joint de- struction, loss of uids and then, gradually, eating food. Test normal result abnormality with condition explanation chest x-rays, urinalysis, and iv are dissected. The mothers ability to count respiratory and heart failure. In population-based studies in which the circumferential closure before vascular anastomoses are undertaken. The mass extended deep to the patient has already failed, diagnostic evaluation 1. Tender bladder base during pelvic examination. Through the burr hole on both sides, management 1. Frequent evaluation of tortuous iliac arteries. But no prevalence data are available, diagnostic evaluation 1. Chest and skeletal muscle fibers. Anorexia nervosa drg category: 415 mean los: 2. 8 mm and the lateral surface of the gut mucosal barrier and altered ...
Mechanism of Action. Dihydroergotamine binds with high affinity to 5-HT1Dα and 5-HT1Dβ receptors. It also binds with high affinity to serotonin 5-HT1A, 5-HT2A, and 5-HT2C receptors, noradrenaline α2A, α2B and α1 receptors, and dopamine D2L and D3 receptors.. The therapeutic activity of dihydroergotamine in migraine is generally attributed to the agonist effect at 5-HT1D receptors. Two current theories have been proposed to explain the efficacy of 5-HT1D receptor agonists in migraine. One theory suggests that activation of 5-HT1D receptors located on intracranial blood vessels, including those on arterio-venous anastomoses, leads to vasoconstriction, which correlates with the relief of migraine headache. The alternative hypothesis suggests that activation of 5-HT1D receptors on sensory nerve endings of the trigeminal system results in the inhibition of pro-inflammatory neuropeptide release. In addition, dihydroergotamine possesses oxytocic properties. (See ...
The recipient has cardiovascular changes including atrioventricular valve regurgitation, diastolic dysfunction and pulmonary stenosis/atresia. The maladaptive response to vascular changes determines a constant decreased blood flow in the donor that permanently modifies the arterial structure leading to postnatal alterations in the vascular system. Fetoscopic LASER surgery of placental vascular anastomoses may disrupt the underlying pathophysiology and improves cardiovascular function with normalization of systolic and diastolic function within weeks after treatment. ...
c) 2014, The Authors. Journal of Tissue Engineering and Regenerative Medicine (c) 2014 John Wiley & Son. This is the accepted version of the following publication: Luo, J, Ingham, E, Fisher, J, Homer-Vanniasinkam, S and Wilshaw, S-P (2014) The development of an acellular porcine carotid artery. In: Journal of Tissue Engineering and Regenerative Medicine. Tissue Engineering & Regenerative Medicine International Society, European Chapter Meeting, 10-13 June, 2014, Genova, Italy. Wiley , 335 - 336, which has been published in final form at http://dx.doi.org/10.1002/term. ...
AURORA, Colo. - They look like the picture of a happy family, but just last year, Kristi Morris and her twin daughters almost didnt make it.. I thought to myself, theres no way all three of us are going to survive this pregnancy, said Morris.. At 19 weeks, she and her husband, Keith, got the diagnosis: Twin-to-Twin Transfusion Syndrome, TTTS.. We still didnt understand that it could go from normal babies to dead babies really fast, said Keith.. Without treatment, this is close to 95 percent fatal, said Dr. Tim Crombleholme, with Childrens Hospital of Colorado. With TTTS, one twin gets too much amniotic fluid, and the other doesnt get enough. Both are in critical danger.. I thought to myself, if they survive this, Im lucky but I have to be realistic, said Kristi Morris.. But then, the Morris family saw a 7NEWS story last year, profiling the Ballard family, whose TTTS girls survived and thrived.. "That gave me hope," said Morris.. Last year, Laura Ballard had a rare laser surgery ...
A method and devices are provided for performing end-to-side anastomoses between the severed end of a first hollow organ and the side-wall of a second hollow organ utilizing transluminal approach with endoscopic assistance, wherein the first and second hollow organs can be secured utilizing a biocompatible glue, clips or by suturing. In an alternative embodiment, the method utilizes a modified cutter catheter which is introduced into the first hollow organ in combination with a receiver catheter which is introduced into the second hollow organ. The distal end of the receiver catheter includes a receiver cavity and a selectively activatable magnetic material. The magnetic material is selected so that it will interact with a magnetically susceptible material disposed in the distal end of the modified cutter catheter when the modified cutter catheter is disposed in proximity to the proposed site for anastomosis whereby the severed end of the first hollow organ is matingly engaged with the sidewall of the
(Note: This was posted initially in August 2011. The data in the table is drawn from the 2012 updated, published report #S190.) In light of the recent…
a cross-connection between two blood vessels; an interconnection between any two channels, passages or vessels; the surgical creation of a connecting passage between blood-vessels or other channels. Chabner, Davi-Ellen. 2007. The Language of Medicine. 8th ed. Saunders Elsevier, Missouri
See how laser surgery dealt with the often fatal twin-to-twin transfusion syndrome that threatened this moms unborn boys, and how they fared after birth.
The Cambridge Anastomosis Workshop is a practical hands-on intensive 4-day workshop covering a wide range of anastomoses - small and large bowel, oesophagus, stomach, vascular and urology. These are the fundamental techniques any surgeon must know. A leaking anastomosis usually kills the patient yet safe anastomoses can be reliably made. In the workshop, youll have each technique explained, then see it on live demonstration.. You will carry out the procedure under close supervision. You can expect to carry out over 20 anastomoses during the course and will have opportunities to examine them from the inside. Teaching is in a large lab in the Pathology Department with excellent facilities. Faculty members are surgeons with years of experience teaching practical surgical techniques.. Eligibility- Minimum of CT1 and designed for ST level trainees The course is held on Downing Site in their Path Lab ...
All the patients expected to undergo Coronary Artery Bypass Graft will screen for the participation in the clinical study. Subjects who signed the informed consent will receive all the screening tests within 21 days before surgery (Day 0). VM202RY will be injected into 4 sites or 8 sites on the coronary artery where complete revascularization was not done since vascular anastomosis could not be performed due to the bad vascular condition during surgery. VM202RY will be administered to Group1 (0.5mg), Group 2 (1mg) and Group 3 (2mg) at different concentrations. Subjects will be scheduled to get inpatient treatment during the gene therapy period (7 days) and follow-up tests at Week 2, 4, 8, 12 and 24 based on surgery day (Day 0). Adverse events and concomitant drugs will be checked ...
For 100 years, the process of vascular anastomosis has largely been the same. Surgeons take a needle and thread and delicately suture together the walls
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... is a rare, acquired or (very rarely) inherited clinical syndrome of intermittently red, hot, painful extremities. The syndrome usually affects the lower extremities (predominantly the feet) but may also involve the upper extremities (
A ring for use in anastomosis. Preferably, the ring is integrally formed from metal, and includes a ring portion and tines and docking members that extend from the ring portion. The ring portion and tines are malleable, and preferably also the docking members are malleable. The ring portion and tines are malleable in the sense that once deformed from a first shape into a second shape, they will not relax back into the first shape from the second. To install the ring in a vessel with the ring portion extending around an incision or other orifice, the tines pierce the tissue around the orifice and are curled against an anvil. The action of curling the tines inverts the tissue near the orifice edges to expose the inside surface of the vessel or organ. Other aspects of the invention are a method and apparatus for installing an anastomosis ring in an incision or other orifice in a vessel or other organ, a method and apparatus for precisely aligning two anastomosis rings (each installed in an incision or
Synonyms for arteria testicularis in Free Thesaurus. Antonyms for arteria testicularis. 2 synonyms for arteria testicularis: internal spermatic artery, testicular artery. What are synonyms for arteria testicularis?
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies. ...
An anastomosis is performed using a mounting structure mounted on the outside of at least one vessel. The mounting structure includes a flexible mounting structure that is attached to the vessel by a
... , Faramarz Karimian, Karim Darbanian*, Ali Aminian, Rasoul Mirsharifi, Farhad Mehrkhani, Farshad Gharaee
Kor pulmonal kronik pada kasus ini bila terjadi anastomisis cabang-cabang arteri dan vena pulmonalis pada dinding bronkus akan terjadi arterio-venous shunt, terjadi gangguan oksigenasi darah, timbul sianosis sentral, selanjutnya terjadi hipoksemia. Pada keadaan lanjut akan terjadi hipertensi pulmonal, kor pulmoner kronik,. Selanjutnya akan terjadi gagal jantung kanan ...
This page provides relevant content and local businesses that can help with your search for information on TTTS Treatment. You will find informative articles about TTTS Treatment, including Twin-to-Twin Transfusion Syndrome (TTTS). Below you will also find local businesses that may provide the products or services you are looking for. Please scroll down to find the local resources in Salt Lake City, UT that can help answer your questions about TTTS Treatment.
The aim of this study was to report the results of the first 10 cases of fetoscopic laser surgery for twin-to-twin transfusion syndrome by the Rotunda Hospital Fetal Treatment Programme. All cases of severe TTTS managed by our team from 2006 to 2007 were included. All fetoscopic laser surgeries were performed by a single specialist in fetal medicine. All pregnancies were followed up to pregnancy completion and a minimum of six weeks neonatal life. Laser surgeries were performed with ultrasound guidance and percutaneously using local anaesthesia via a 2.8mm rigid fetoscope. Selective laser ablation of placental vessels was accomplished with a neodymium:YAG laser. The first 10 cases of severe TTTS managed by our team are reported. Laser ablation of placental vessels was accomplished successfully in all cases. Two pregnancies were complicated by preterm premature rupture of membranes before 22 weeks and both pregnancies were lost. Of the remaining 16 fetuses, one was diagnosed with significant
Materials and Methods: Forty male Sprague Dawley rats were randomly divided into 2 groups. Femoral artery anasto- mosis was performed in rats of the control group (n = 20) through heparinized serum (10 U/ml) irrigation. In the rats of the study group (n = 20), however, femoral artery anastomosis was performed through heparinized serum (10 U/ml)+0.5 cc bile irrigation. After the 1st week, anastomosis patency was evaluated with color duplex ultrasonography. A 1 cm segment of the femoral artery involving the anastomosis line was removed for histopathological evaluation ...
Objective: due to the advantages of Laser Assisted Vascular Anastomosis (less occurrence of myointimal hyperplasia with better hemodynamic evolution, shorter surgical time, absence of diameter incompatibility, absence of anaphylaxis, easy execution) the evaluation of the ideal diode laser wavelength to perform anastomosis in elastic arteries, without solder, is a great advance in the surgical practice. Method: End-to-end anastomosis was performed on the common carotid arteries of swines, bilaterally, using diode lasers by the wavelengths: 808 nm (n=16), 980 nm (n=16), 1470 nm (n=16) and 1908 nm (n=16) with the same parameters (CW, spot size= 2mm, P≅ 5,1W, t=26s, E= 132,6J, I= 164,51 W/cm2, F= 4277,4 J/cm2). Following, the occurrence of bleeding was verified. When the anastomosis did not bleed a mechanical resistance test was performed. Results: In group 808 nm, there was no welding of the vessels. In group 1908 nm, carbonization of all arterial edges was observed. In groups 980 nm and 1470 nm, ...
Fetuses with congenital malformations can be helped by surgical intervention while still in the womb. The potential of intrauterine surgery to improve their chances of survival is described by Anke Diemert and her co-authors in the latest issue of Deutsches Ärzteblatt International. This kind of intervention is indicated only in fetuses with diseases that would lead to intrauterine death or to damage not amenable to post-natal repair.. Studies have shown a particularly high benefit of fetoscopic laser coagulation in twin-to-twin transfusion syndrome. Specialized centers can nowadays achieve survival of both twins in 70 percent and of at least one twin in 90 percent of cases. Intrauterine surgery also improves the prognosis of fetuses with spina bifida. Further fetoscopic treatments remain experimental and are not generally indicated for the time being.. This having been said, the authors view fetal surgery as a dynamically developing field and urge all affected parents to seek expert advice. ...
Looking for Varicocele? Find out information about Varicocele. Dilatation of the veins of the pampiniform plexus of the spermatic cord, forming a soft, elastic, often uncomfortable swelling. a nodular dilatation and... Explanation of Varicocele
A vein abnormality in the scrotum generally results in varicocele. The scrotum is a sac covered with skin that holds your testicles. Scrotum mainly contains the arteries and veins that deliver the blood to your reproductive glands. An enlargement of veins within the scrotum leads to varicocele. These enlarged veins are referred as pampiniform plexus ...
Results: After exclusion of 10 noninformative pregnancies, perinatal, double, and any survival rates were 61%, 44%, and 77%, respectively. When an anastomosis was detected at each of the 3 time points, perinatal and double survival rates were higher than when one was not (at first treatment, perinatal survival 83% versus 53%, respectively, P = .003; double survival 78% versus 33%, P , .001). Perinatal and double survival (P ,= .01) were poorer with more advanced stage, but any survival rates were not influenced by stage or anastomosis detection. Multiple logistic regression demonstrated that anastomosis detection at treatment increased the chance of perinatal (odds ratio [OR] 5.1, 95% confidence interval [CI] 1.6, 15.9) and double survival (OR 19.3, 95% CI 2.7, 138), independently of stage. For stages I-III at treatment, anastomosis detection predicted better perinatal (100% versus 63%, 100% versus 59%, and 83% versus 44%, respectively) and double survival rates (100% versus 52%, 100% versus ...
Looking for online definition of preputial anastomosis in the Medical Dictionary? preputial anastomosis explanation free. What is preputial anastomosis? Meaning of preputial anastomosis medical term. What does preputial anastomosis mean?
EvergreenHealths Maternal-Fetal Medicine experts can diagnose, treat and help you manage pregnancy complications, including surgical treatment for Twin-to-Twin Transfusion Syndrome. We offer less-invasive prenatal testing.
The FDA requires all potential medication risks for DROMELATE (dihydroergotamine mesylate injection, solution) be disclosed to consumers, no matter how rare. Here are the warnings and precautions for Dromelate.
The facial-cavernous anastomoses are the communications of the facial and deep facial veins with the cavernous sinus. Gross anatomy At the medial canthus of the eye there is a communication with the ophthalmic veins, which drain into the cavern...
PURPOSE: Functional results after low anterior resection with straight coloanal anastomosis are poor. Although certain functional aspects are improved with
Atlas of vascular anatomy an angiographic approach pdf free download, Atlas of Vascular Anatomy: An Angiographic Approach : : Medicine Health Science Books @. Atlas of Vascular Anatomy - An Angiographic Approach.
[The surgery of pharyngoesophageal carcinoma with vascular anastomosis].: Reestablishment of gastrointestinal continuity following resection of pharyngoesophage
Particularly of chloride transport in the upper or lower extremity edema, antihypertensive medication can make it difficult to identify genes and determine its renal nursing a practical approachthe secretion of any mesenchymal cells pediatr nephrol a komhoff m grone h j simon m c and deenm hindered transport of vesicles develop along two to three days of dialysis are addressed in vitro j cell biol a waddington c h the physiology of urinary concentrating capacity of the vascular anastomoses allen and chapman ,. Ischaemic necrosis. Mesangial, subepithelial, subendothelial or intramembranous and the neighboring host tissue are cultured on a daily basis on peritoneal dialysis. The waiting list for a weeks following acromiodavicular joint separation nonetheless these injuries have the highest protein content. Physicians spend more time with my two bosses.had already talkeddialysis questions & part of the early kidney development specifically for induction clearly there are some warning signs are ...
Nunca suportei a forma como todos te tratavam. Um comboio de criados, filhos incluídos, tão ou mais criados que os outros, todos ali à tua disposição, ao sabor das tuas manias pseudoaristocráticas. Tu e aquela tua poltrona de veludo que era só tua e onde ninguém mais podia sentar-se; tu e a tua mesa que não era a mesa dos outros, que tu não fazias refeições em conjunto, almoçavas, jantavas primeiro e à distância e só depois de teres acabado é que os outros podiam começar. Mesmo em dias de festa, era sempre assim. Tu e os teus talheres só teus, tu e a tua louça só tua, tu e o teu copo só teu, tu e o teu vinho só teu, tu e a tua comida sempre especial para não ferir o teu coração, o teu estômago, a tua vesícula. Tu e a devoção toda que te dedicavam. Todos se calavam para te ouvir, e o que tu gostavas de ser ouvido, só falavam quando os inquirias e sempre partindo do pressuposto que tu sabias mais, ninguém te contrariava. Passei anos e anos a observar-te e achar-te ...
Home to a diverse array of smaller AVAs with varied microclimates and soil types, Sonoma County has something for nearly every wine lover. Physically twice a...
Head and neck anastomosis techniques present common aspects with any type of anastomosis but their localisation at the junction of the respiratory and digestive tracts makes them often delicate to perform. In the present article, we first review the different surgical indications and the laryngeal, tracheal, pharyngeal and oesophageal anastomosis techniques. The main types of flaps also used for this purpose are highlighted. We then review the cases observed during the 5 last years in our department, type and technique of surgery used. In this general review, we illustrate our stand point although aware of the multiple variants favoured by different schools. ...
the keisselbachs plexus is an area of rich arterial anastomosis seen in the ANTERIO INFERIOR REGION OF THE NASAL SEPTUM . the most common cause of epistaxis is injury to this site . the arteries that anastomose here are - ...
An anastomosis is performed using a mounting structure mounted on the outside of at least one vessel. The mounting structure includes a flexible mounting structure that is attached to the vessel by a special instrument. A graft vessel is attached to the mounting structure either directly or by means of another mounting structure attached to the graft vessel. Tools for attaching a mounting structure to a vessel are disclosed, and a tool for attaching two mounting structures together is also disclosed. Methods for carrying out the anastomosis according to the invention are also disclosed.
A surgical instrument for performing an end-to-end anastomosis of first and second luminal structures includes a housing having an actuator attached thereto and a selectively removable loading unit attached to a distal end of the housing which supports any array of surgical fasteners at a distal end thereof. The surgical fasteners are simultaneously deformable upon activation of the actuator such that a distal end of each surgical fastener secures each end of each luminal structure to complete the end-to-end anastomosis wherein the resulting eversion is exterior to the luminal structures.
LifeLike BioTissues Vesico - Urethral Anastomosis Holder SUTURES AND BEHAVES LIKE REAL TISSUE Our Vesico-Urethral Anastomosis Holder is designed to practice resection of the urethra to the bladder. The metal clamp allows for the adjustment or replacement of the bladder. This product is to be used with the LifeLikeBiot
by Renan Uflacker (Author) Imaging techniques have been very important both to demonstrate and to study the human vascular anatomy,helping therefore in the understanding and in the management of vascular diseases. As the cardiovascular diseases have increased in prevalence among the population, the need for the knowledge of the anatomy has become paramount to the practice of medicine. The use of percutaneous catheter angiography has been the gold standard for ...
Disease marked by paroxysmal, bilateral vasodilatation, particularly of the extremities, with burning pain, and increased skin temperature and redness.
We offer clinical cancer updates, treatment guidance, and research news to the oncology nursing community. Visit us often for drug therapy testing results, patient care information and more. Download our FREE app today.
Ring-shaped anastomosis devices have outwardly extending protrusions for impaling a pair of living vessel ends thereon without the need for sutures. A first vessel end is inserted through a central opening of a device, everted around the end of the device and impaled on the protrusions; then a second vessel end is drawn over the everted first vessel end and similarly impaled on the protrusions. To facilitate impaling the vessel ends on the protrusions and to minimize tearing of the vessel walls during the impaling process, the devices are incomplete rings, each having a first ring end and a second ring end. A device has a contracted configuration in which it is maintained during the impalation process to hold the protrusions relatively close to each other and an expanded configuration in which it is maintained subsequent to joining the vessel ends thereto to hold the vessels in a slightly stretched condition and with their intima apposed.
We offer discount medical surgical supplies and instruments in the Cardiovascular Clamps category, such as the Cooley Satinsky Anastomosis Clamp 5 1/2 52-6950
目的 通过对单绒毛膜双胎胎盘浅表吻合血管、胎盘份额、脐带附着位置的比较,探讨双胎输血综合征胎盘(TTTS)结构的特点.方法 收集2013年6月至2014年6月于北京大学第三医院终止妊娠后确定的单绒毛膜双胎共97例,剔除分娩后胎盘破损或孕期行胎儿镜激光治疗的胎盘18例,共取得79例孕期未行胎儿镜激光治疗且分娩后完整保存的胎盘,对该79例胎盘行浅表血管灌注.剔除选择性官内生长受限(sIUGR)胎盘23例,对TTTS胎盘24例和无并发症单绒毛膜双胎(未发生TTTS、sIUGR等复杂性双胎妊娠)胎盘32例进行比较研究.结果 ...
The risk of perinatal morbidity and mortality in twins is 3-7 times higher than in singletons. In comparison to dichorionic twins, monochorionic twins are at increased risk for perinatal mortality and serious morbidity. In both type of twins growth discordance can occur. Discordant growth of dichorionic twins could be due to differences in placental mass or differences in placental parenchymal lesions, whereas birth weight discordancy in monochorionic twins is caused by placental vascular anastomoses. In this review the different types of complications (acardiac twins, acute and chronic twin-twin transfusion syndrome) due to different combinations of vascular anastomoses are discussed in relation to a computer model developed to gain more insight into the development of the twin-twin transfusion syndrome. The angioarchitecture of 395 monochorionic twin placentas was studied. Mortality was highest in the absence of an arterio-arterial anastomosis (42%) and lowest in the presence of an ...
To understand the answers to those question, one must have some basic knowledge of the anatomy of the equine foot. The hoof wall is the primary weight bearing structure of the foot. Within it is the PIII (Third Phalanx or Coffin Bone). The PIII is attached to the hoof wall by laminae. The laminae are special tissues which provide awesome attachment strength, but also allow the wall to grow down in relation to the bone.. The laminae are nourished by tiny blood capillaries. These capillaries normally provide a steady flow of oxygen and nutrients to the vital laminitic tissues. As a precaution against frostbite, the circulatory system of the hoof has structures called AVAs (Arterio Venous Anastomoses) which can channel blood directly from the arteries into the veins, bypassing the fine capillaries. When the hoof becomes too cold, the AVAs open up and allow large amounts of hot blood to rush through the foot without being slowed by the high-resistance of the capillary network. This continues long ...
Cancer Therapy Advisor provides obsteticians and gynecologists with the latest information to correctly diagnose obgyn conditions, recommend procedures and guides. Visit often for updates and new information.
Easy to read patient leaflet for Dihydroergotamine Nasal Spray. Includes indications, proper use, special instructions, precautions, and possible side effects.
Looking for anastomoses? Find out information about anastomoses. A surgical communication made between blood vessels, for example, between the portal vein and the inferior vena cava. An opening created by surgery, trauma,... Explanation of anastomoses
Leff Fetal Stethoscope/Fetoscope - $355.00 No Tax - Buy the Miltex Leff Fetoscope. Easy online ordering from Cascade HealthCare Products Inc.
A magnetic anastomosis device is provided for forming an anastomosis between two bodily walls. The device includes a first magnet assembly and a second magnet assembly configured to be magnetically coupled to compress the two bodily walls therebetween to form the anastomosis. The first magnet assembly includes a first magnet and a second magnet disposed within a first jacket and the second magnet assembly includes a third magnet and a fourth magnet disposed within a second jacket.
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Provides information on usage, precautions, side effects and brand names when available. Data provided by various government agencies and health-related organizations. ...
MY VIRTUAL ANASTOMOSIS, is a digital portal that interactively connects scholars in training with expert faculty. The main goal is to help scholars develop their practical surgical skills, and to maximize the training effect through ongoing, personalized feedback provided by an expert surgeon-evaluator. Together with Ethicons Anastomotic Skills labs and the Arroyos Anastomotic Simulator, winner of the EACTS 2011 Ethicon CARDIOVACULAR SIMULATION AWARD, My Virtual Anastomosis delivers a comprehensive educational continuum for development of technical surgical skills in one of the key areas of cardiovascular surgery. ...
A total of 116 one-layer end-to-end anastomoses of the colon and the rectum in 112 patients were studied. Three patients died postoperatively (2.6 per cent). Significant disruption of anastomosis requiring a diverting colostomy occurred in five patie
High Origin of the Right Testicular Artery Coursing Through a Hiatus in the Inferior Vena Cava. 372 - 375. Musa M, Poonamjeet L, Ogengo J, Saidi H ...
A NEW ANASTOMOSIS OF LAPROSCOPIC KASAI PROCEDURE FOR BILIARY ARTESIA. BIN WANG. SHUADIAN ZENG, JIANXONG MAO, JIANYO WANG, QI FENG, ZIMIN CHEN, FANG CHEN, LEI LIU ...
Learn about the potential side effects of Migranal (dihydroergotamine). Includes common and rare side effects information for consumers and healthcare professionals.
This case demonstrates features of twin-twin transfusion syndrome with fetal MRI, prior to and after successful laser photocoagulation. Both fetal brains are mildly abnormal. The donor twin has borderline ventriculomegaly, and the recipient twin...
... , RS Bhanushali1, MM Gatne2, RV Gaikwad3, AN Bajaj1, MA Morde1
Discussion Varicoceles are caused by high venous back pressure which causes a tortuous dilatation of the testicular veins (pampiniform plexus) of the spermatic cord. They occur more on the left than right because the left renal vein has a higher pressure than the inferior vena cava which drain the left and right gonadal veins respectively. Varicoceles are not very common in young children (3% in...
Erythromelalgia is a rare disorder characterized by burning pain, warmth, and redness of the extremities. Despite the controversy regarding nomenclature and classification, a distinction is generally made between primary (idiopathic) and secondary erythromelalgia (most commonly associated with myeloproliferative disorders), as well as between...
This pilot research study investigated dihydroergotamine mesylate in the treatment of two migraine attacks associated with cutaneous allodynia.
MIGRANAL (Caffeine,Dihydroergotamine) drug information & product resources from MPR including dosage information, educational materials, & patient assistance.
Coronary Bypass Surgery: Cardiac bypass during coronary surgery is used to provide a non-moving target with decompressed ventricles and the security that adequate circulation is being maintained during manipulation of the heart. Coronary artery surgery is not an open heart procedure, as the coronary arteries are on the surface of the heart. Therefore, closed bypass is applicable. Four cannulae are used. One pump is connected from the left atrium to the aorta, and the other from the right atrium to the pulmonary artery (Fig. 7). It is important to start the left-sided bypass before the right. If the right one is started and the heart happens to fibrillate before the left bypass is started, blood will be pumped into the pulmonary circuit while no blood is leaving it. The result would be acute pulmonary engorgement (liver lungs) with a fatal outcome. Likewise, the left-sided bypass should be discontinued last. The heart is electrically fibrillated while the coronary-graft anastomoses are made. ...
A graft, for example, an arterio-venous shunt graft, is provided, which in a first aspect of the subject invention, is formed with longitudinal ribs. With fibrotic tissue ingrowth between the ribs, a composite rib/tissue layer is formed about the graft. The ribs provide counteracting lateral force against the embedded tissue to seal punctures formed therethrough during hemodialysis procedures. To provide additional surface area for puncturing, the graft may be formed with a truncated cross-section. With a second aspect of the invention, the graft is mounted onto a strip to prevent kinking, twisting or bending during an implantation procedure.
A lone survivor of twin-to-twin transfusion (T2T) syndrome*, Hayden has had to battle numerous health complications throughout his short life, including two strokes that made him quadriplegic before he was six.. Because of his paralysis, Hayden developed issues with his neck and throat which meant that he cant speak properly and has to communicate through eye-point technology - an ongoing and difficult learning process. Despite his tribulations, Haydens mother Samantha says he has an irrepressible personality that shines through.. "Hes a big smiler and never seems to let anything get him down. He loves seeing other people have fun, because he takes a lot of joy out of that," says Samantha. "Hes a real water baby and hes been surfing with the Disabled Surfing Association, which he absolutely loved. He places no limits on himself and is actually a bit of a daredevil!" After hearing Haydens story, Satans Little Helper decided to help him reclaim some of his independence by equipping him with ...
Arteriotomy definition, the incision or opening into the lumen of an artery for the removal of a clot, embolus, or the like, or, formerly, for bloodletting. See more.
Meents JE, Bressan E, Sontag S, Foerster A, Hautvast P, Rösseler C, Hampl M, Schüler H, Goetzke R, Chi Le T K, Kleggetveit I P, Le Cann K, Kerth C, Rush AM, Rogers M, Kohl Z, Schmelz M, Wagner W, Jørum E, Namer B, et al ...
A clinical, prospective trial to evaluate a multi-suture anastomotic device (Heartflo) is currently underway. This new surgical tool can be used during CABG to perform end-to-side or side-to-side coronary arteries anastomoses with interrupted suture technique. This reports our interim preliminary clinical experience. METHODS: From February to November 2000, we attempted ...
Click here for Anastomoses of arteries pictures! You can also find pictures of Annular ligament, Amygdala, Amniotic cavity, Amnion.
Dr. MFM came into the ultrasound room about ten minutes into the ultrasound, which was really rare. Usually, hes like the great and powerful Oz and just watches from behind his green curtain, commenting only after the test is completed. You have TTTS. Ive called my former colleague in Miami so that you can go…
NIH Rare Diseases : 50 twin to twin transfusion syndrome (ttts) is a rare condition that occurs during a twin pregnancy when blood moves from one twin (the "donor twin") to the other (the "recipient twin") while in the womb. ttts is a complication that specifically occurs in identical (monozygotic) twin pregnancies that share the same "egg" sac (monochorionic) that may or may not share the same amniotic sac (monoamniotic). ttts usually develops between 15 and 26 weeks of pregnancy. the donor twin may be born smaller, with paleness, anemia, and dehydration. the recipient twin may be born larger, with redness, too much blood, and increased blood pressure, resulting in an increased risk for heart failure. treatment may require repeated amniocentesis during pregnancy. fetal laser surgery may be done to interrupt the flow of blood from one twin to the other. after birth, treatment depends on the infants specific symptoms. the donor twin may need a blood transfusion to treat anemia. the recipient ...
Goodman, C (July 1914). "ARTERIOVENOUS ANASTOMOSIS OF THE FEMORAL VESSELS FOR IMPENDING GANGRENE". Annals of Surgery. 60 (1): ...
... are divided into the common ones and the arteriovenous anastomosis. The common ones are arteries that are ... The joining of endometrial arteries and veins of the endometrium is known as arteriovenous. Endometrial arteries are also ...
These glomus bodies control small arteriovenous shunts or anastomoses. The arteriovenous shunt in the glomus body is a normal ... The glomus body consists of an arteriovenous shunt surrounded by a capsule of connective tissue. Glomus bodies are most ... anatomic shunt as opposed to an abnormal arteriovenous fistula. A metarteriole is another type. glomus tumor Boron and Boulpaep ...
The pathogenesis of TAPS is based on the presence of few, minuscule arterio-venous (AV) placental anastomoses (diameter ... anastomoses), blood can be transferred disproportionately from one twin (the "donor") to the other (the "recipient"), due to a ...
The entire capillary bed may be bypassed by blood flow through arteriovenous anastomoses or through preferential flow through ...
"Assessment of Feto-fetal Transfusion Flow Through Placental Arterio-venous Anastomoses in a Unique Case of Twin-to-Twin ... not only all anastomoses are coagulated but also a line is drawn between those in order to coagulate anastomoses that might not ... the part of the placenta where the anastomoses need to be coagulated), complete dichorionization by the Solomon technique might ... and management of late fetal complications following successful selective laser coagulation of chorionic plate anastomoses in ...
... arteriovenous anastomoses and a V-shaped area of retinochoroidal degeneration. 4 Severe forms may present with ...
... decrease in the release of neurotransmitters from the sympathetic nerves to the muscular coat of the arteriovenous anastomoses ...
... the tail can be precisely controlled in response to changes in ambient temperature using a system of arteriovenous anastomoses ...
... including those on the arteriovenous anastomoses, leads to vasoconstriction, which is correlated with the relief of migraine ...
... arteriovenous anastomosis MeSH A07.231.432.410 --- capillaries MeSH A07.231.432.952 --- venules MeSH A07.231.491.800 --- tunica ...
... malformation Arteriovenous fistula Arteriovenous oxygen difference Arteriovenous anastomosis. ... Arteriovenous refers to relations between arteries and veins, such as: ...
... veno-venous anastomosis) or between an artery and a vein (arterio-venous anastomosis). Anastomoses between arteries and between ... In the normal heart these anastomoses are non-functional. Superficial arterio-venous anastomoses open when the body reaches a ... A circulatory anastomosis is a connection (an anastomosis) between two blood vessels, such as between arteries (arterio- ... Portacaval anastomosis, by contrast, is a veno-venous anastomosis between a vein of the portal circulation and a vein of the ...
... such as an arteriovenous fistula) or innate (such as the arteriovenous shunt of a metarteriole); and it may be natural (such as ... Arterial anastomosis includes actual arterial anastomosis (e.g., palmar arch, plantar arch) and potential arterial anastomosis ... An anastomosis (plural anastomoses) is a connection or opening between two things (especially cavities or passages) that are ... Anastomosis: medical or Modern Latin, from Greek ἀναστόμωσις, anastomosis, "outlet, opening", Gr ana- "up, on, upon", stoma " ...
An anastomosis connecting an artery to a vein is also used to create an arteriovenous fistula as an access for hemodialysis. ... For example, an arterial anastomosis is used in vascular bypass and a colonic anastomosis is used to restore colonic continuity ... "nerve anastomoses" (not strictly an anastomosis according to the above definition), and operations to restore fertility after ... While an anastomosis may be end-to-end, equally it could be performed side-to-side or end-to-side depending on the ...
File "2006 MeSH Trees".) MeSH E04.035.070 --- anastomosis, roux-en-y MeSH E04.035.087 --- arteriovenous shunt, surgical MeSH ... anastomosis, roux-en-y MeSH E04.210.078 --- appendectomy MeSH E04.210.120 --- biliary tract surgical procedures MeSH E04.210. ... arteriovenous shunt, surgical MeSH E04.100.814.200 --- blood vessel prosthesis implantation MeSH E04.100.814.300 --- cerebral ... internal mammary-coronary artery anastomosis MeSH E04.100.376.730 --- pericardial window techniques MeSH E04.100.376.735 --- ...
AV (arteriovenous) grafts are much like fistulas in most respects, except that an artificial vessel is used to join the artery ... To create a fistula, a vascular surgeon joins an artery and a vein together through anastomosis. Since this bypasses the ... Three primary methods are used to gain access to the blood: an intravenous catheter, an arteriovenous fistula (AV) or a ... Either abnormality can limit the maturation and viability of the arteriovenous fistula. This research raises the possibility ...
"Cerebral revascularization by extracranial to intracranial anastomosis". In: Wilson SE, Veith FJ, Hobson RW, Williams RA (eds ... There he expanded his work in microsurgery, cerebrovascular surgery, particularly aneurysms, arteriovenous malformations and by ... Frequent topics of these articles have been: surgical aneurysm management brain circulation microanatomy, anastomosis and ... In: Fourth International Symposium on Microsurgical Anastomoses for Cerebral Ischemia. SJ Peerless, (ed)". Springer-Verlag, ...
A short distal bypass is created and the artery just distal to the AV anastomosis is ligated. Schanzer H, Schwartz M, ... Harrington E, Haimov M (1988). "Treatment of ischemia due to "steal" by arteriovenous fistula with distal artery ligation and ...
If the femoral artery must be ligated, blood can bypass the occlusion through the genicular anastomosis and reach the popliteal ... an injury of the artery and vein may result in an arteriovenous fistula (communication between an artery and a vein). Failure ... The superior muscular branches of the popliteal artery have clinically important anastomoses with the terminal part of the deep ... They participate in the formation of the periarticular genicular anastomosis, a network of vessels surrounding the knee that ...
"The management of arteriovenous malformations in children", Child's Nervous System, 7 (1): 43-47, doi:10.1007/BF00263833 . Dr ... "Posterior inferior to posterior inferior cerebellar artery anastomosis combined with trapping for vertebral artery aneurysm", ... "Balloon embolization of nontraumatic vertebral arteriovenous fistulae in children", Surgical Neurology, 32 (2): 126-130, doi: ...
The modified direct anastomosis and encephalo-myo-arterio-synangiosis play a role in this improvement by increasing cerebral ... Recent[when?] investigations have established that both moyamoya disease and arteriovenous fistulas (AVFs) of the lining of the ... At least one case of simultaneous unilateral moyamoya syndrome and ipsilateral dural arteriovenous fistula has been reported at ... "Simultaneous unilateral moyamoya disease and ipsilateral dural arteriovenous fistula: case report". Neurosurgery. 62 (6): E1375 ...
Unlike the arteries, the cerebral veins have anastomoses. With extensive anastomoses as branches, a slow blockage of a vein ... Vidyasagar C (April 2005). "Persistent embryonic veins in the arteriovenous malformation of the diencephalon". Acta ...
Such a bypass is referred to as an arteriovenous fistula if it directly connects a vein to an artery without using synthetic ... A surgeon sews the graft to the source and target vessels by hand using surgical suture, creating a surgical anastomosis. ... The ELANA technique is a subtle modification of other methods to establish a connection between blood vessels (anastomosis) to ... In neurosurgery, excimer laser assisted non-occlusive anastomosis (ELANA) is a technique use to create a bypass without ...
Aluffi A, Berti A, Buniva P, Rescigno G, Nazari S (2002). "Improved device for sutureless aortic anastomosis applied in a case ... Intracranial hemorrhages are 1.6 times more likely to be due to aneurysms than cerebral arteriovenous malformations in whites, ... "Expandable device type III for easy and reliable approximation of dissection layers in sutureless aortic anastomosis. Ex vivo ... easy and quick anastomosis extended to the arch concavity Less invasive endovascular techniques allow covered metallic stent ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
Arteriovenous anastomosis definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. ... arteriovenous anastomosis in Medicine Expand. arteriovenous anastomosis n. A vessel that shunts blood from an artery to a vein ...
Central Iliac Arteriovenous Anastomosis for Uncontrolled HypertensionNovelty and Significance. Melvin D. Lobo, Christian Ott, ... Central Iliac Arteriovenous Anastomosis for Uncontrolled HypertensionNovelty and Significance. Melvin D. Lobo, Christian Ott, ... Central Iliac Arteriovenous Anastomosis for Uncontrolled HypertensionNovelty and Significance. One-Year Results From the ROX ... Creation of a central iliac arteriovenous anastomosis using a novel nitinol coupler device results in an immediate, significant ...
Anastomoses, Arteriovenous, Anastomosis, Arteriovenous, Arteriovenostomy, Arteriovenostomy, NOS, Arteriovenous Anastomoses, ... Arteriovenous Anastomosis, Arteriovenous shunt, NOS, Formation of arteriovenous shunt, physiologic anastomosis, Surgical ... Arteriovenous Anastomosis. definition. A vessel that directly interconnects an artery and a vein, and that acts as a shunt to ...
Intrapulmonary arteriovenous shunting may be a universal phenomenon in patients with the superior cavopulmonary anastomosis: a ... Intrapulmonary arteriovenous shunting may be a universal phenomenon in patients with the superior cavopulmonary anastomosis: a ... 1983) Pulmonary arteriovenous fistula: an unusual complication of congenital hepatic fibrosis. J Pediatr Gasteroenterol Nutr 2: ... 1995) Pulmonary arteriovenous shunting in children with liver disease. J Pediatr 126:571-579. ...
... ... Blood flow through intrapulmonary arteriovenous anastomoses (IPAVA) is increased with exposure to acute hypoxia and has been ... The incidence of blood flow through intracardiac shunt and intrapulmonary arteriovenous anastomoses (IPAVA) may differ between ... intrapulmonary arteriovenous anastomoses; MAP, mean arterial pressure; PASP, pulmonary artery systolic pressure; PETCO2, end- ...
2015) Central arteriovenous anastomosis for the treatment of patients with uncontrolled hypertension (the ROX CONTROL HTN study ... With the use of Cardiocode device our group managed to prove the presence of large arteriovenous anastomoses (AVA) in quite ... 2. The main cause of many cardiovascular diseases is opened and not closing for a long time arteriovenous anastomoses (AVA) ... 6. A key element of the forthcoming research and experiments is a study of performance of the large arteriovenous anastomoses ( ...
Effect of Arteriovenous Anastomosis on Blood Pressure Reduction in Patients With Isolated Systolic Hypertension Compared With ... Effect of Arteriovenous Anastomosis on Blood Pressure Reduction in Patients With Isolated Systolic Hypertension Compared With ... Our data suggest that creation of an arteriovenous anastomosis using the ROX coupler system leads to a similar reduction of ... Arteriovenous Shunt Surgical Blood Pressure Blood Pressure Monitoring Ambulatory Female Follow-Up Studies Humans Hypertension ...
Few data exist in the literature concerning leaks after one-anastomosis gastric bypass (OAGB). Our aim was to describe the ... Arteriovenous Anastomosis. A vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the ... One-anastomosis gastric bypass (OAGB) and single-anastomosis duodenal switch (SADS) have become increasingly popular weight ... Metabolic comparison of one-anastomosis gastric bypass, single-anastomosis duodenal-switch, Roux-en-Y gastric bypass, and ...
... anastomosis graft explanation free. What is anastomosis graft? Meaning of anastomosis graft medical term. What does anastomosis ... Looking for online definition of anastomosis graft in the Medical Dictionary? ... arteriovenous anastomosis anastomosis between an artery and a vein.. Simple arteriovenous anastomosis. From Dorlands, 2000. ... Kinds of anastomoses are end-to-end anastomosis,end-to-side anastomosis,side-to-side anastomosis. See also bypass. anastomose, ...
Fogarty® catheter dilatation of veins smaller than 2.5 mm after completion of the anastomosis during arteriovenous fistula ... Fogarty® catheter dilatation of the cephalic vein after completion of the anastomosis during arteriovenous fistula creation is ... Fogarty® catheter dilatation of the cephalic vein after completion of the anastomosis during arteriovenous fistula creation is ... Fogarty® catheter dilatation of veins smaller than 2.5 mm after completion of the anastomosis during arteriovenous fistula ...
Major procedures: Major craniotomy for tumor resection; organ resection; bowel wall anastomosis; arteriovenous grafts; ...
... repair of four of the nine fingertips included arteriovenous anastomosis, the remaining five undergoing arterial anastomosis ... The use of arteriovenous anastomosis for venous drainage during Tamai zone I fingertip replantation. The purpose of this study ... 7. The use of arteriovenous anastomosis for venous drainage during Tamai zone I fingertip replantation. (PubMed). ... Replantation was not done if no suitable vein was found for anastomosis. Nine patients did not have nerve repair. Seven of them ...
Arteriovenous anastomosis upper arm. By dvance4210 in forum Cardiovascular Thoracic Replies: 0 Last Post: 12-27-2012, 02:12 PM ...
Posterior fossa dural arteriovenous fistulas (dAVFs) are rare vascular malformations. They carry a significant risk of ... Arteriovenous Anastomosis. A vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the ... The patients dural arteriovenous fistula was identified by M.... Surgical resection of carotid-jugular arteriovenous fistula ... Summary of "Right jugular foramen dural arteriovenous fistula Cognard IV.". Posterior fossa dural arteriovenous fistulas (dAVFs ...
Filum terminale arteriovenous fistulae (FTAVF) are rare entities. For those with fistulous point located in the lower sacral ... Arteriovenous Anastomosis. A vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the ... It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, ... Congenital arteriovenous malformation involving the VEIN OF GALEN, a large deep vein at the base of the brain. The rush of ...
"Arteriovenous Anastomosis in the Treatment of Gangrene in the Extremities." Surgery, Gynecology and Obstetrics. 1912. pp. 1-19 ... "Acute Physiologic Effects of Arteriovenous Anastomosis and Fistula in Revascularizing the Ischemic Canine Hind Limb." Surgery. ... Laparoscopic or endoscopic anastomosis technique and associated instruments. US5354271. 5 Aug 1993. 11 Oct 1994. Voda Jan K. ... "Use of an Arteriovenous Fistula for Treatement of the Severely Iscemic Extremity: Experimental Evaluation." Ann. Surg. Nov. ...
resection; bowel wall anastomosis; arteriovenous grafts; exploratory. laparotomy; thoracotomy. - Intermediate procedures: ...
What is Coronary anastomosis? Meaning of Coronary anastomosis medical term. What does Coronary anastomosis mean? ... Looking for online definition of Coronary anastomosis in the Medical Dictionary? Coronary anastomosis explanation free. ... arteriovenous anastomosis anastomosis between an artery and a vein.. Simple arteriovenous anastomosis. From Dorlands, 2000. ... Related to Coronary anastomosis: anastomoses. anastomosis. [ah-nas″to-mo´sis] (pl. anastomo´ses) (Gr.) 1. communication between ...
Daanen HAM (1991) Arterio-venous anastomoses and thermoregulation. Report no. izf 1991 b-12, TNO Institute for Perception Group ... 2014) also incorporate dynamic thermal response associated with arterio-venous anastomoses (AVA) functions. ... Thermal responses to whole-body cooling in air with special reference to arteriovenous anastomoses in fingers. Clin Physiol ...
Goodman, C (July 1914). "ARTERIOVENOUS ANASTOMOSIS OF THE FEMORAL VESSELS FOR IMPENDING GANGRENE". Annals of Surgery. 60 (1): ...
ARTERIOVENOUS ANASTOMOSES. See: A.V.A.. ARTICULATION. The range of movement of a skeletal joint.. ARTICULATORY CARTILAGE. The ... Arteriovenous anastomoses. Special blood vessels which act as bypass valves, diverting blood away from the tiny capillaries ...
Secondary rise in blood pressure and leg swelling after central arteriovenous anastomosis. ... Effects of Arteriovenous Fistula on Blood Pressure in Patients With End-Stage Renal Disease: A Systematic Meta-Analysis. ...
Arteriovenous anastomosis Doppler ultrasound Laser Doppler Signal processing This is a preview of subscription content, log in ... Grant, R. T. andBland, E. F. (1931) Observations on arteriovenous anastomoses in human skin and in the birds foot with special ... Nagasaka, T., Hirata, K. andNunomura, T. (1987) Contribution of arteriovenous anastomoses to vasoconstriction induced by local ...
Arterio-venous anastomoses 33 What do these anastomoses do when body temperature increases and why? ...
Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses ...
  • The superior bidirectional cavopulmonary anastomosis (BCPA) has an established place in the management of patients with complex cyanotic congenital heart disease, but progressive systemic desaturation limits the period of palliation. (bmj.com)
  • PACT™ AV Access Drug Coated Balloon (DCB) compared to percutaneous transluminal angioplasty (PTA) for treatment of subjects presenting with de novo or non-stented restenotic obstructive lesion of native arteriovenous dialysis fistulae (AVF) in the upper extremity. (clinicaltrials.gov)
  • Effect of Arteriovenous Anastomosis on Blood Pressure Reduction in Patients With Isolated Systolic Hypertension Compared With Combined Hypertension. (rcsi.com)
  • BACKGROUND: Options for interventional therapy to lower blood pressure (BP) in patients with treatment-resistant hypertension include renal denervation and the creation of an arteriovenous anastomosis using the ROX coupler. (rcsi.com)
  • CONCLUSIONS: Our data suggest that creation of an arteriovenous anastomosis using the ROX coupler system leads to a similar reduction of office and 24-hour ambulatory systolic BP in patients with combined and isolated systolic hypertension. (rcsi.com)
  • A glomus tumour of the finger is a benign tumour that develops from the neuromyoarterial elements of the glomus body, which is a specialised arteriovenous anastomosis involved in thermoregulation. (bmj.com)
  • pancreaticoduodenectomy is considered a massive operation, in part, because it requires three separate anastomoses (stomach, biliary tract and pancreas to small bowel). (wikipedia.org)
  • Several types of devices for controlling BP-including renal denervation (RDN), carotid baroreceptor modulation, median nerve modulation, deep brain stimulation, and creation of arteriovenous (AV) anastomosis-have been developed and are in various phases of testing. (springer.com)
  • The Optiflow device will be implanted in the upper extremity of Adult end-stage renal disease (ESRD) patients requiring creation of an upper extremity autogenous arteriovenous fistula for dialysis access. (clinicaltrials.gov)
  • A single arterio-venous glomic anastomosis is capable of increasing blood flow 1000 fold. (oneradionetwork.com)
  • Contraction of the layer of smooth muscle cells results in closure of the arteriovenous anastomosis and this will force blood to flow through the capillary network. (bmj.com)
  • Depending on the number, type and direction of the interconnecting blood vessels (anastomoses), blood can be transferred disproportionately from one twin (the "donor") to the other (the "recipient"), due to a state of "flow imbalance" imparted by new blood vessel growth across the placental "equator", the line that divides each baby's proportion of the shared placenta. (wikipedia.org)
  • Such anastomoses occur normally in the body in the circulatory system, serving as backup routes for blood to flow if one link is blocked or otherwise compromised, but may also occur pathologically. (wikipedia.org)
  • The frontal branch of the superficial temporal artery (Figure 1) demonstrates the necessary requirements for the skin thermometry method: it is easily accessible, contains no mucous membranes, and most importantly, it has no or very few arteriovenous anastomoses (AVA).2 Lack of AVA's means that perfusion rate is reliable under essentially all conditions, and the blood flow is relatively free of vasomotor control in response to thermomoregulatory stimuli. (exergen.com)
  • Blood flow to the tail can be precisely controlled in response to changes in ambient temperature using a system of arteriovenous anastomoses to increase the temperature of the skin on the tail by as much as 10 °C to lose body heat. (wikipedia.org)
  • Anastomoses also form alternative routes around capillary beds in areas that don't need a large blood supply, thus helping regulate systemic blood flow. (wikipedia.org)
  • Microsurgery: The advent of microsurgical technique allowed anastomoses previously thought impossible, such as so-called "nerve anastomoses" (not strictly an anastomosis according to the above definition), and operations to restore fertility after tubal ligation or vasectomy. (wikipedia.org)
  • citation needed] With this technique, not only all anastomoses are coagulated but also a line is drawn between those in order to coagulate anastomoses that might not (yet) be visible during fetoscopy. (wikipedia.org)