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.
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.
A serotonin agonist that acts selectively at 5HT1 receptors. It is used in the treatment of MIGRAINE DISORDERS.
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.
Surgical shunt allowing direct passage of blood from an artery to a vein. (From Dorland, 28th ed)
The flow of BLOOD through or around an organ or region of the body.
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).
An order of MAMMALS, usually flesh eaters with appropriate dentition. Suborders include the terrestrial carnivores Fissipedia, and the aquatic carnivores PINNIPEDIA.
A subspecialty of internal medicine concerned with the anatomy, physiology, and pathology of the kidney.
The study of the heart, its physiology, and its functions.
The hospital department responsible for the administration and provision of diagnostic and therapeutic services for the cardiac patient.
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.
The minute vessels that connect the arterioles and venules.
Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.
Congenital, inherited, or acquired abnormalities involving ARTERIES; VEINS; or venous sinuses in the BRAIN; SPINAL CORD; and MENINGES.
The vessels carrying blood away from the capillary beds.
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.
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.
Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.
Removal of an endotracheal tube from the patient.
The venous trunk which returns blood from the head, neck, upper extremities and chest.
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.
A mass of tissue for transplantation that includes the skin and/or the SUBCUTANEOUS FAT, and the perforating blood vessel that traverses the underlying tissue to supply blood to the skin. Perforator flaps are named after the anatomical region or muscle from where they are transplanted and/or the perforating blood vessel.
A dead body, usually a human body.
Transducers that are activated by pressure changes, e.g., blood pressure.
Tongues of skin and subcutaneous tissue, sometimes including muscle, cut away from the underlying parts but often still attached at one end. They retain their own microvasculature which is also transferred to the new site. They are often used in plastic surgery for filling a defect in a neighboring region.
A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.
The vein accompanying the femoral artery in the same sheath; it is a continuation of the popliteal vein and becomes the external iliac vein.
The main artery of the thigh, a continuation of the external iliac artery.
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)
The portion of the leg in humans and other animals found between the HIP and KNEE.
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.
Tubular vessels that are involved in the transport of LYMPH and LYMPHOCYTES.
Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins).
Penetrating wounds caused by a pointed object.
Restoration of integrity to traumatized tissue.
General or unspecified injuries involving organs in the abdominal cavity.
General or unspecified injuries to the chest area.
Wounds caused by objects penetrating the skin.
General or unspecified injuries to the heart.
The superior part of the upper extremity between the SHOULDER and the ELBOW.
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.
Wires of various dimensions and grades made of stainless steel or precious metal. They are used in orthodontic treatment.
Exclusive legal rights or privileges applied to inventions, plants, etc.
Catheters designed to be left within an organ or passage for an extended period of time.
A flexible, tubular device that is used to carry fluids into or from a blood vessel, hollow organ, or body cavity.
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.
One of three ossicles of the middle ear. It conducts sound vibrations from the MALLEUS to the STAPES.
A branch of biology dealing with the structure of organisms.
An arthropod subclass (Xiphosura) comprising the North American (Limulus) and Asiatic (Tachypleus) genera of horseshoe crabs.
Nonexpendable apparatus used during surgical procedures. They are differentiated from SURGICAL INSTRUMENTS, usually hand-held and used in the immediate operative field.
A technique of closing incisions and wounds, or of joining and connecting tissues, in which staples are used as sutures.
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)

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 ...
Earlier, in 2010-2011, our group of researchers proposed a New Theory of Cardiovascular Disease (CVD). According to this theory, many CVDs are caused by the malfunctioning of large arteriovenous anastomoses (AVA). Normally working AVA should open with a significant increase in blood pressure (BP) in order to ease pressure in the arteries and prevent damage to the walls of the arteries. But, on the other hand, AVA should be closed too on time, so that there are no significant losses of arterial blood and do not overload the venous pool.. ...
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 ...
Avas Flowers Florists interview details: 4 interview questions and 5 interview reviews posted anonymously by Avas Flowers Florists interview candidates.
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, ...
Nontraditional sites for vascular anastomoses to enable kidney transplantation in patients with major systemic venous thromboses.
Rat Monoclonal Anti-VEGF R2/KDR/Flk-1 Antibody (Avas12a1). Endothelial Cell Marker. Validated: WB, Flow, IHC, IHC-P. Tested Reactivity: Mouse. 100% Guaranteed.
Ripoff Report on: Avas Flowers - Avas flowers they lied about the price of and charged me an additional then sameday delivery service when i contacted them via ...
Blood vessels deliver oxygen, nutrients, hormones and immunity factors throughout the body. To perform these vital functions, vascular cords branch, lumenize and interconnect. Yet, little is known about the cellular, molecular and physiological mechanisms that control how circulatory networks form and interconnect. Specifically, how circulatory networks merge by interconnecting in parallel along their boundaries remains unexplored. To examine this process we studied the formation and functional maturation of the plexus that forms between the Dorsal Longitudinal Anastomotic Vessels (DLAVs) in the zebrafish. We find that the migration and proliferation of endothelial cells within the DLAVs and their Segmental (Se) vessel precursors drives DLAV plexus formation. Remarkably, the presence of Se vessels containing only endothelial cells of the arterial lineage is sufficient for DLAV plexus morphogenesis, suggesting that endothelial cells from the venous lineage make a dispensable or null contribution ...
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...
The Authority for State Assets Recovery (AVAS) announced its intention to examine whether the buyer of press distribution company Rodipet SA fulfilled contract obligations when refusing to distribute
TY - JOUR. T1 - Twin to twin transfusion syndrome. AU - Bhat, R.. PY - 2010/1/1. Y1 - 2010/1/1. N2 - Twin to twin transfusion syndrome (TTTS) is a specific condition complicating 10-15% of monochorionic multiple pregnancy. Intertwin vascular anastomoses and transfusion is a normal event. Syndrome develops when blood flow is unbalanced. Recent studies suggest a paucity of bi-directional superficial anastomoses failing to compensate for hemodynamic imbalance resulting from unidirectional transfusion along deeper arterio-venous anastomoses. TTTS is associated with high rates of perinatal mortality. Acute and chronic forms exist and severity varies. The donor twin is often smaller, hypovolemic, anemic and develops congestive heart failure. The recipient is usually heavier and polycythemic. Antenatally, second trimester ultrasound usually detects the condition. Serial amnioreduction is the recommended therapy. Postnatally, intertwin haemoglobin and birth weight differences along with pallor in one ...
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 ...
A blue-red, extremely painful vascular neoplasm involving a glomeriform arteriovenous anastomosis (glomus body), which may be found anywhere in the skin, most often in the distal portion of the fingers and toes, especially beneath the nail. It is composed of specialized pericytes (sometimes termed glomus cells), usually in single encapsulated nodular masses which may be several millimeters in diameter (From Stedman, 27th ed). CHEMODECTOMA, a tumor of NEURAL CREST origin, is also sometimes called a glomus tumor ...
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
We analyzed the functional outcome and self-evaluation of the voice of patients with T1 glottic carcinoma treated with endoscopic laser surgery and …
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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…
Students often approach learning about plants and flowers with exuberant energy. By using a variety of teaching techniques, you can help youngsters...
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 ...
TY - JOUR. T1 - Twin-twin transfusion syndrome in a dizygotic monochorionic-diamniotic twin pregnancy. AU - Quintero, R. A.. AU - Mueller, O. T.. AU - Martínez, J. M.. AU - Arroyo, J.. AU - Gilbert-Barness, E.. AU - Hilbelink, D.. AU - Papenhausen, P.. AU - Sutcliffe, M.. PY - 2003/10. Y1 - 2003/10. N2 - We present a case of twin-twin transfusion syndrome with discordant gender. Monochorionicity was confirmed by surgical pathology. Cytogenetic analysis showed normal 46,XX and 46,XY karyotypes. Microsatellite analysis using reliable pericentromeric markers was consistent with dispermic fertilization of two separate ova. This suggests that monochorionicity, rather than zygosity, may be responsible for the development of placental vascular anastomoses.. AB - We present a case of twin-twin transfusion syndrome with discordant gender. Monochorionicity was confirmed by surgical pathology. Cytogenetic analysis showed normal 46,XX and 46,XY karyotypes. Microsatellite analysis using reliable ...
Ultrasonography of each testicle was used to capture a coronal-saggital image of the veins of the pampiniform plexus (PP) and the testicular artery of 239 boars at approximately 6 months of age. Three to 10 vessels of the PP were used to derive the average area of right PP vessels (AAR) and the average area of the left PP vessels (AAL) and the standard deviation for each testicle for each boar. Within boar ratios, as well as boar to population ratios of vessel size were then calculated to identify boars with suspect varicocele. Suspect varicocele was defined as vessel area 1.5 times larger than the other testicle within a boar or compared to the average vessel size for that testicle in the population. Utilizing the within boar ratio, 34% of boars presented with suspect varicocele, with 85% of the varicocele occurring in the left testicle PP. Heritability estimates from a sire model were 0.39 and 0.34 for AAR and AAL, respectively. These moderate heritability estimates suggest that varicocele ...
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. ...
Background: DNA methylation (DNAm), is an important transcriptional regulation mechanism, relevant to various diseases. Twin-to-twin transfusion syndrome (TTTS) is a complication in twin pregnancies resulting from disproportionate blood circulation. Survivors of TTTS show a hi...
TY - JOUR. T1 - [Development of hemostatic sealant for arterial anastomosis; clinical application].. AU - Morita, Shigeki. AU - Matsuda, Takehisa. AU - Eto, Masataka. AU - Oda, Shinichiro. AU - Tominaga, Ryuji. PY - 2013/5. Y1 - 2013/5. N2 - For the purpose of examining the clinical applicability of a newly developed surgical sealant, animal experiments were performed, and clinical trial was followed. In animal experiments, several animal models, including carotid artery anastomosis model and coronary artery bypass grafting model were undertaken. In each model, complete hemostasis of the anastomoses using four simple interrupted sutures, was obtained. In addition, elastomeric property of the sealant prevented thinning of the arterial wall. The clinical trial performed in patients with thoracic aortic surgery showed significantly better hemostasis even under heparinized condition. Based on these excellent results, clinical usage of the sealant was approved.. AB - For the purpose of examining the ...
Background: It has been proposed that hyperperfusion of perforators and distension of anastomotic vessels may be a mechanism by which large perforator flaps are perfused. This study investigates whether increasing perfusion pressure of radiographic contrast in cadaveric studies altered the radiographic appearance of vessels, particularly by distending their anastomotic connections. Methods: From 10 fresh cadavers, bilateral upper limbs above the elbow were removed. Three cadavers were excluded. Seven pairs of limbs were injected with lead oxide solutions via the brachial artery while distally monitoring intravascular pressure in the radial artery using a pressure transducer. One limb was injected slowly (0.5 mL/s) and the other rapidly (1.5 mL/s) to produce low and high perfusion pressures, respectively. Skin and subcutaneous tissue were then removed and radiographed. Results: The filling of perforators and their larger caliber branches appeared unchanged between low- and high-pressure ...
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. ...
TY - JOUR. T1 - Probabilistic visual and electromagnetic data fusion for robust drift-free sequential mosaicking. T2 - application to fetoscopy. AU - Tella-Amo, Marcel. AU - Peter, Loic. AU - Shakir, Dzhoshkun I. AU - Deprest, Jan. AU - Stoyanov, Danail. AU - Iglesias, Juan Eugenio. AU - Vercauteren, Tom. AU - Ourselin, Sebastien. PY - 2018/4/1. Y1 - 2018/4/1. N2 - The most effective treatment for twin-to-twin transfusion syndrome is laser photocoagulation of the shared vascular anastomoses in the placenta. Vascular connections are extremely challenging to locate due to their caliber and the reduced field-of-view of the fetoscope. Therefore, mosaicking techniques are beneficial to expand the scene, facilitate navigation, and allow vessel photocoagulation decision-making. Local vision-based mosaicking algorithms inherently drift over time due to the use of pairwise transformations. We propose the use of an electromagnetic tracker (EMT) sensor mounted at the tip of the fetoscope to obtain camera ...
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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Erythromelalgia 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
Low rectal anastomosis leakage, keep it or move it, 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 ...
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 ... Depending on the number, type and direction of the interconnecting blood vessels (anastomoses), blood can be transferred ...
"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 (closed) but also a line is drawn between those in order to coagulate anastomoses that ... 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 ...
In some tissues, the entire capillary bed may be bypassed by blood flow through arteriovenous anastomoses or through ...
... 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 media ...
... malformation Arteriovenous fistula Arteriovenous oxygen difference Arteriovenous anastomosis This disambiguation ... Arteriovenous refers to relations between arteries and veins, such as: ... page lists articles associated with the title Arteriovenous. If an internal link led you here, you may wish to change the link ...
... 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 ... Hand Sewn Anastomosis, End-to-End Anastomosis (EEA). Anastomosis can be performed by hand or with an anastomosis assist device ... 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 ...
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 ...
MeSH E04.035.070 - anastomosis, roux-en-y MeSH E04.035.087 - arteriovenous shunt, surgical MeSH E04.035.188 - cerebrospinal ... 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 ...
Frequent topics of these articles have been: surgical aneurysm management brain circulation microanatomy, anastomosis and ... There he expanded his work in microsurgery, cerebrovascular surgery, particularly aneurysms, arteriovenous malformations and by ... blood gases and pH in surgical patients cerebral arteriovenous malformations Ausman is a pioneer in the field of ... Fourth International Symposium on Microsurgical Anastomoses for Cerebral Ischemia. Springer-Verlag. pp. 325-327. Slavin KV, ...
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 ...
Even when other anastomoses from the circle of Willis were blocked off, the whole cerebral arterial tree could be filled. Later ... Kim, D.J.; Krings, T. (2011-09-01). "Whole-Brain Perfusion CT Patterns of Brain Arteriovenous Malformations: A Pilot Study in ... Inter-territorial end to end anastomoses exist between branches of the anterior cerebral artery and middle cerebral artery, the ... Vander Eecken HM, Adams RD (April 1953). "The anatomy and functional significance of the meningeal arterial anastomoses of the ...
Stage of peripheral arteriolar-venular anastomoses: Arteriolar-venular anastomoses develop as blood is diverted from blocked ... Arteriovenous shunting from the retinal periphery may cause venous tortuosity. Since the same occur in many other ocular ... Stage of neovascularization and fibrous proliferation: Neovascularization starts from the arteriolar-venular anastomoses, and ...
Malik, Ghaus M.; Sadasivan, Balaji; Knighton, Robert S.; Ausman, James I. (1991), "The management of arteriovenous ... "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 ... At least one case of simultaneous unilateral moyamoya syndrome and ipsilateral dural arteriovenous fistula has been reported at ... investigations have established that both moyamoya disease and arteriovenous fistulas (AVFs) of the lining of the brain, the ... "Simultaneous unilateral moyamoya disease and ipsilateral dural arteriovenous fistula: case report". Neurosurgery. 62 (6): E1375 ...
Coronary arteriovenous fistula, acquired (I28.0) Arteriovenous fistula of pulmonary vessels Pulmonary arteriovenous fistula: ... As a radical treatment for portal hypertension, surgical creation of a portacaval fistula produces an anastomosis between the ... I67.1) Cerebral arteriovenous fistula, acquired (I77.0) Arteriovenous fistula, acquired (I77.2) Fistula of artery (J86.0) ... Head trauma can lead to perilymph fistulas, whereas trauma to other parts of the body can cause arteriovenous fistulas.[ ...
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 ...
A pulmonary shunt occurs as a result of blood flowing right-to-left through cardiac openings or in pulmonary arteriovenous ... alveoli or deoxygenated blood flowing directly from pulmonary arterioles to nearby pulmonary veins through anastomoses, ...
"Expandable device type III for easy and reliable approximation of dissection layers in sutureless aortic anastomosis. Ex vivo ... 235 Intracranial hemorrhages are 1.6 times more likely to be due to aneurysms than cerebral arteriovenous malformations in ... easy and quick anastomosis extended to the arch concavity[28][29][30] Less invasive endovascular techniques allow covered ... "Expandable device type III for easy and reliable approximation of dissection layers in sutureless aortic anastomosis. Ex vivo ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
Coarctation of the aorta is also a known risk factor,[5] as is arteriovenous malformation.[7] Genetic conditions associated ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
Systemic embolism of venous origin can occur in patients with an atrial or ventricular septal defect, or an arteriovenous ...
ಹೆಚ್ಚಿನ ದೃಷ್ಟಾಂತಗಳಲ್ಲಿ, ಹೆಪ್ಪುಕಾರಕ ವಿರೋಧಿ ಚಿಕಿತ್ಸೆಯು ಚಿಕಿತ್ಸೆಯ ಪ್ರಧಾನ ಆಧಾರವಾಗಿರುತ್ತದೆ. ಹೆಪಾರಿನ್, ಕಡಿಮೆ ಅಣುಗಳಿಗೆ ಸಂಬಂಧಿಸಿದ ತೂಕದ ಹೆಪಾರಿನ್‌ಗಳು (ಉದಾಹರಣೆಗೆ ಎನಾಕ್ಸೋಪಾರಿನ್ ಮತ್ತು ಡಾಲ್ಟೆಪರಿನ್), ಅಥವಾ ಫಂಡಾಪ್ಯಾರಿನಕ್ಸ್ ಇದು ಮೊದಲ ಹಂತದಲ್ಲಿ ಲೇಪಿಸಲ್ಪಡುತ್ತದೆ, ಹಾಗೆಯೇ ವಾರ್‌ಫಾರಿನ್, ಆಸಿನೋಕ್ಯುಮರಲ್, ಅಥವಾ ಫೆನ್‌ಪ್ರೊಕೌಮನ್ ಚಿಕಿತ್ಸೆಯು ಪ್ರಾರಂಭಗೊಳಿಸಲ್ಪಡುತ್ತದೆ (ಇದು ಹಲವಾರು ದಿನಗಳನ್ನು ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
I28.0) Arteriovenous fistula of pulmonary vessels. *(I28.1) Aneurysm of pulmonary artery. *(I28.8) Other specified diseases of ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
Arteriovenous fistula. *Arteriovenous malformation. *Telangiectasia *Hereditary hemorrhagic telangiectasia. Vascular nevus. * ...
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 ...
... central arteriovenous anastomosis, dietary sodium, Elecsys Troponin T high-sensitive assay, high-sensitivity cardiac troponin, ...
... and importance of velocity fluctuations within the venous anastomosis of an arteriovenous graft. The motivation of this work is ... Transitional flow at the venous anastomosis of an arteriovenous graft: potential activation of the ERK1/2 mechanotransduction ... and importance of velocity fluctuations within the venous anastomosis of an arteriovenous graft. The motivation of this work is ... Steady-flow in vitro studies (Re = 1060 and 1820) were conducted within a graft model that represents the venous anastomosis 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. ...
Application of human type I pancreatic elastase (PRT-201) to the venous anastomosis of arteriovenous grafts in patients with ... Purpose: To explore the safety and efficacy of PRT-201 applied to the outflow vein of a newly created arteriovenous graft (AVG ... applied to the graft-vein anastomosis and adjacent outflow vein immediately after AVG placement. The primary outcome measure ...
Novo Matos, J; Malbon, A; Dennler, Matthias; Glaus, Toni M (2016). Intrapulmonary arteriovenous anastomoses in dogs with severe ... Intrapulmonary arteriovenous anastomoses in dogs with severe Angiostrongylus vasorum infection: clinical, radiographic, and ... Download PDF Intrapulmonary arteriovenous anastomoses in dogs with severe Angiostrongylus vasorum infection: clinical, ... CONCLUSIONS: These results suggest that dogs may open IPAVAs and that opening of such anastomoses may play a regulatory role in ...
arteriovenous anastomosis. Naturally occuring, flow adjustable connection vessels between small veins and arteries that can ...
... ... 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 ( ...
... ... did not convert choke to true anastomoses; and (3) revealed arteriovenous shunting between major vessels with retrograde ... Increasing Perfusion Pressure Does Not Distend Perforators or Anastomoses but Reveals Arteriovenous Shuntings. PLASTIC AND ... with no significant increase in true anastomoses (P = 0.32) and no association between maximum perfusion pressure and number (P ...
Arteriovenous anastomosis (ROX Coupler). Withdrawn because of high rates of venous stenosis and volume overload (heart failure) ...
Effect of Arteriovenous Anastomosis on Blood Pressure Reduction in Patients With Isolated Systolic Hypertension Compared With ... Effect of Arteriovenous Anastomosis on Blood Pressure Reduction i. .pdf (. 261.41 kB. ) ... 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 ...
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 ...
... superior cavopulmonary anastomosis). ... The mechanism of formation of pulmonary arteriovenous ... Arteriovenous Fistula, Arteriovenous Shunt, Surgical, Hepatopulmonary Syndrome, Humans, Microcirculation, Nitric Oxide, ... The mechanism of formation of pulmonary arteriovenous malformations associated with the classic Glenn shunt ( ...
Read on to learn more about anastomosis and what it involves. ... Anastomosis is when surgeons connect two tube-like structures ... Arteriovenous anastomosis connects an artery to a vein. This procedure can occur to create durable dialysis access for people ... Bowel anastomosis and vascular anastomosis. Bowel anastomosis. Bowel anastomosis connects two sections of the bowel or connects ... Vascular anastomosis. Vascular anastomosis connects blood vessels. There are three types:. *Arterioarterial anastomosis ...
... 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 ...
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, ...
Arteriovenous anastomosis upper arm. By dvance4210 in forum Cardiovascular Thoracic Replies: 0 Last Post: 12-27-2012, 02:12 PM ...
Blood flow through intrapulmonary arteriovenous anastomoses (QIPAVA ) is elevated during exercise at sea level (SL) and at rest ... Reduced blood flow through intrapulmonary arteriovenous anastomoses at rest and during exercise in lowlanders during ... Reduced blood flow through intrapulmonary arteriovenous anastomoses during exercise in lowlanders during acclimatization to ...
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 ...
Major procedures: Major craniotomy for tumor resection; organ resection; bowel wall anastomosis; arteriovenous grafts; ...
"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. ...
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 ...
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 ...
Goodman, C (July 1914). "ARTERIOVENOUS ANASTOMOSIS OF THE FEMORAL VESSELS FOR IMPENDING GANGRENE". Annals of Surgery. 60 (1): ...
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 ...
  • The mechanism of formation of pulmonary arteriovenous malformations associated with the classic Glenn shunt (superior cavopulmonary anastomosis). (ox.ac.uk)
  • A surgical arteriovenous shunt was created in adult male Sprague-Dawley rats to induce HF. (portlandpress.com)
  • The first reaction to hypothermia is vasoconstriction in the arteriovenous shunt, primarily located in fingers and toes. (signavitae.com)
  • Not to be confused with surgical anastomosis, nor with arteriovenous fistula. (dermis.net)
  • At 15th day visit, 21 of 23 patients (91.3%) had patent arteriovenous fistula. (viamedica.pl)
  • Fogarty® catheter dilatation of the cephalic vein after completion of the anastomosis during arteriovenous fistula creation is effective and safe in patients with small calibrated veins. (viamedica.pl)
  • Right jugular foramen dural arteriovenous fistula Cognard IV. (bioportfolio.com)
  • Spontaneous disappearance of a spinal dural arteriovenous fistula. (bioportfolio.com)
  • We report a case of an unusual spontaneous obliteration of a spinal dural arteriovenous fistula after diagnosis confirmation through spinal angiography. (bioportfolio.com)
  • Far lateral approach for microsurgical ligation of C1 dural arteriovenous fistula: surgical anatomy and technical nuances. (bioportfolio.com)
  • This video demonstrates the diagnosis and surgical ligation of a C1 dural arteriovenous fistula via a far lateral, transcondylar approach. (bioportfolio.com)
  • The patient's dural arteriovenous fistula was identified by M. (bioportfolio.com)
  • Surgical resection of carotid-jugular arteriovenous fistula after multiple failed embolisation. (bioportfolio.com)
  • Carotid-jugular fistula is a rare presentation of arteriovenous fistula. (bioportfolio.com)
  • Spotting inferior petrosal sinus for embolizing cavernous dural arteriovenous fistula with the help of preoperative computed tomography angiography. (bioportfolio.com)
  • Inferior petrosal sinus (IPS) is commonly adopted as a route in embolizing cavernous dural arteriovenous fistula (cDAVF). (bioportfolio.com)
  • Venous interruption through surgical clip ligation is the gold standard treatment for ethmoidal dural arteriovenous fistula (e-dAVF). (bioportfolio.com)
  • The primary objective of this study is to demonstrate the safety and efficacy of the PHIL® liquid in endovascular treatment of dural arteriovenous fistula. (bioportfolio.com)
  • In the case of chronic care, 78% of patients have an arteriovenous fistula. (bioportfolio.com)
  • The native arteriovenous fistula (AVF) is the preferred vascular access because of the lower thrombosis and infe. (bioportfolio.com)
  • BACKGROUND: In both humans and dogs the pulmonary vasculature is able to recruit large-diameter anatomical intrapulmonary arteriovenous anastomoses (IPAVAs). (uzh.ch)
  • Blood flow through intrapulmonary arteriovenous anastomoses (IPAVA) is increased with exposure to acute hypoxia and has been associated with pulmonary artery systolic pressure (PASP). (cardiffmet.ac.uk)
  • Blood flow through intrapulmonary arteriovenous anastomoses (QIPAVA ) is elevated during exercise at sea level (SL) and at rest in acute normobaric hypoxia. (cardiffmet.ac.uk)
  • 9.Arterio-venous malformations after superior cavopulmonary anastomosis in the sheep model. (stanford.edu)
  • We present experimental and computational results that describe the level, distribution, and importance of velocity fluctuations within the venous anastomosis of an arteriovenous graft. (nih.gov)
  • Steady-flow in vitro studies (Re = 1060 and 1820) were conducted within a graft model that represents the venous anastomosis to measure velocity by means of laser Doppler anemometry. (nih.gov)
  • We also report results of a porcine animal study in which the distribution and magnitude of vein-wall vibration on the venous anastomosis were measured at the time of graft construction. (nih.gov)
  • and (3) revealed arteriovenous shunting between major vessels with retrograde filling of venous tributaries as pressure increased. (edu.au)
  • A single arterio-venous glomic anastomosis is capable of increasing blood flow 1000 fold. (oneradionetwork.com)
  • Retinal arteriovenous malformation (AVM) is a rare congenital vascular anomaly characterized by marked arterial and venous dilatation with an aberrant-to-absent capillary bed. (healio.com)
  • Arterio-venous anastomoses in mice affect perfusion measurements with dynamic contrast enhanced CT. (biomedsearch.com)
  • The resulting small proximal gastric pouch is joined to any parts of the SMALL INTESTINE by an end-to-side SURGICAL ANASTOMOSIS, depending on the amounts of intestinal surface being bypasses. (bioportfolio.com)
  • A procedure consisting of the SURGICAL ANASTOMOSIS of the proximal part of the JEJUNUM to the distal portion of the ILEUM, so as to bypass the nutrient-absorptive segment of the SMALL INTESTINE. (bioportfolio.com)
  • ileorectal anastomosis surgical anastomosis of the ileum and rectum after total colectomy, as is sometimes performed in the treatment of ulcerative colitis. (thefreedictionary.com)
  • These findings suggest a potential relationship between the associated turbulence-induced vein-wall vibration and the development of intimal hyperplasia in arteriovenous grafts. (nih.gov)
  • To explore the safety and efficacy of PRT-201 applied to the outflow vein of a newly created arteriovenous graft (AVG). (nih.gov)
  • Randomized, double-blind, placebo-controlled, single-dose escalation study of PRT-201 (0.01 to 9 mg) applied to the graft-vein anastomosis and adjacent outflow vein immediately after AVG placement. (nih.gov)
  • Arteriovenous anastomosis connects an artery to a vein. (medicalnewstoday.com)
  • We aimed to report our results using a different technique consisting of Fogarty® catheter dilatation of the cephalic vein after completion of the anastomosis. (viamedica.pl)
  • A total of 23 patients, aged between 35 to 70 years, with a cephalic vein diameter of ≤ 2.5 mm received a dilatation technique for arteriovenous creation. (viamedica.pl)
  • anastomosis between an artery and a vein. (thefreedictionary.com)
  • arteriovenous anastomosis one between an artery and a vein. (thefreedictionary.com)
  • 2) The surgical connection between two tubular structures (e.g., end-to-end anastomosis of the colon or rectum) after a cancerous segment has been excised, or end-to-side anastomosis of a saphenous vein during a CABG. (thefreedictionary.com)
  • Grade II, an anastomosis between a branch artery and a branch vein, and Grade III, a diffuse marked dilation of the whole vascular system. (bmj.com)
  • Long-Term Patency of Arteriovenous Fistulae Salvaged by Balloon Angioplasty with and without Accessory Vein Embolization: A Retrospective Study. (amedeo.com)
  • Multimodal imaging of an impending retinal vein occlusion in an arteriovenous malformation associated with optic nerve drusen (OND) in a 16-year-old girl affected by Wyburn-Mason Syndrome. (healio.com)
  • arteriovenous anastomosis anastomosis between an artery and a vein. (myfaircredit.com)
  • This configuration differs from the configuration of human AVFs, which are usually created through anastomoses between the end of a vein and the side of an artery. (asnjournals.org)
  • One of the factors implicated is the development of macroscopic pulmonary arteriovenous malformations (PAVM) seen in some of these patients. (bmj.com)
  • Anastomosis in the vascular system creates a backup pathway for blood flow if a blood vessel becomes blocked. (medicalnewstoday.com)
  • 1. an anastomosis connecting the end of an artery and that of some other vessel, either directly or with a synthetic graft. (thefreedictionary.com)
  • end-to-side anastomosis an anastomosis connecting the end of one vessel with the side of a larger one. (thefreedictionary.com)
  • Patent vessel anastomosis. (zeiss.com)
  • INFRARED 800 from ZEISS enables intraoperative visual assessment of blood flow and vessel patency during arteriovenous malformation (AVM), bypass, aneurysm and anastomosis surgery. (zeiss.com)
  • INFRARED 800 for OPMI PENTERO 800 from ZEISS supports the assessment of vessel patency following vessel anastomosis ensuring vascularization of the transplanted tissue flap - typically performed during free-flap and perforator-flap transplants. (zeiss.com)
  • Bifrontal approach for clip ligation of bilateral ethmoidal dural arteriovenous fistulas: operative video. (bioportfolio.com)
  • Patients with Dural Arteriovenous Fistulas (dAVF) have a few choice for safe treatment. (bioportfolio.com)
  • Results of Stent Graft Placement to Treat Cephalic Arch Stenosis in Hemodialysis Patients with Dysfunctional Brachiocephalic Arteriovenous Fistulas. (amedeo.com)
  • intestinal anastomosis establishment of a communication between two formerly distant portions of the intestine. (thefreedictionary.com)
  • The procedure is known as an intestinal anastomosis. (medlineplus.gov)
  • The embryological steps of MSA development, anastomosis formation and anatomical variations are linked, but not fully understood. (springermedizin.de)
  • Nagasaka, T., Hirata, K. and Nunomura, T. (1987) Contribution of arteriovenous anastomoses to vasoconstriction induced by local heating of the human finger. (springer.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)
  • OBJECTIVES: The aims of the present study were to characterize severely affected, naturally infected dogs with Angiostrongylus vasorum, to evaluate if these dogs can open IPAVAs, and to assess if the recruitment of such anastomoses affects the severity of pulmonary hypertension (PH). (uzh.ch)
  • 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)
  • The normal glomus body is a specialized arteriovenous anastomosis that plays a role in thermoregulation [ 1 ]. (hindawi.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)
  • Anastomosis occurs naturally in the body, where veins and arteries connect to transport blood around the body. (medicalnewstoday.com)
  • Arterioarterial anastomosis connects two arteries. (medicalnewstoday.com)
  • heterocladic anastomosis one between branches of different arteries. (thefreedictionary.com)
  • anastomosis of Riolan anastomosis of the superior and inferior mesenteric arteries. (thefreedictionary.com)
  • Endometrial arteries are divided into the common ones and the arteriovenous anastomosis. (wikipedia.org)
  • The joining of endometrial arteries and veins of the endometrium is known as arteriovenous. (wikipedia.org)
  • Hypoplastic vertebral artery terminating as posterior inferior cerebellar artery was observed in 9 patients, while transversal anastomosis between vertebral arteries was seen in only 1 patient. (medscimonit.com)
  • Anastomoses between the MSA and the internal pudendal arteries and the superior rectal artery were detected. (springermedizin.de)
  • The terminology "arteriovenous" aneurysm or anastomosis with reference to the great vessels leaving the heart is not preferable. (annals.org)
  • In healthy people the opening of these anastomoses affects the degree of exercise-induced increase in pulmonary arterial pressure. (uzh.ch)
  • crucial anastomosis an arterial anastomosis in the upper part of the thigh, formed by the anastomotic branch of the sciatic artery, the internal circumflex artery, and the first perforating and transverse portions of the external circumflex artery. (thefreedictionary.com)
  • crucial anastomosis an arterial anastomosis in the upper part of the thigh. (thefreedictionary.com)
  • People may need anastomosis to join blood vessels or sections of the bowel. (medicalnewstoday.com)
  • There are two main types of anastomosis: Bowel anastomosis and vascular anastomosis. (medicalnewstoday.com)
  • Bowel anastomosis connects two sections of the bowel or connects the bowel to other structures within the body. (medicalnewstoday.com)
  • Stapling is the more common method for most bowel anastomosis, as it is quicker than sewing and easier to master. (medicalnewstoday.com)
  • Roux-en-Y anastomosis any Y-shaped anastomosis in which the small intestine is included. (thefreedictionary.com)
  • Multidisciplinary Management of Leaks After One-Anastomosis Gastric Bypass in a Single-Center Series of 2780 Consecutive Patients. (bioportfolio.com)
  • Few data exist in the literature concerning leaks after one-anastomosis gastric bypass (OAGB). (bioportfolio.com)
  • Metabolic comparison of one-anastomosis gastric bypass, single-anastomosis duodenal-switch, Roux-en-Y gastric bypass, and vertical sleeve gastrectomy in rat. (bioportfolio.com)
  • One-anastomosis gastric bypass (OAGB) and single-anastomosis duodenal switch (SADS) have become increasingly popular weight loss strategies. (bioportfolio.com)
  • One anastomosis gastric bypass (OAGB) is increasingly used in the treatment of morbid obesity. (bioportfolio.com)
  • Outcomes of One Anastomosis Gastric Bypass in the IFSO Middle East North Africa (MENA) Region. (bioportfolio.com)
  • Since it was first described in 2001, the one anastomosis gastric bypass (OAGB) has been gaining popularity in the Middle East region and worldwide. (bioportfolio.com)
  • One of the more common effective surgical procedures performed today for obesity is the Roux-en-Y gastric bypass. (bioportfolio.com)
  • This study try to identify differences in cost, length of operation and results between two different bariatric surgical techniques, the laparoscopic Roux-en-Y gastric bypass and the Singl. (bioportfolio.com)
  • Could Single-anastomosis Gastric Bypass Be a Curative Treatment for Type II Diabetes? (bioportfolio.com)
  • Single- Anastomosis gastric bypass (SAGB) is a potentially curative line of treatment for type II diabetes mellitus (T2DM) patients with BMI 25-30 kg/m2. (bioportfolio.com)
  • The aim of this prospective randomized controlled trial is to compare the two procedures One-anastomosis gastric Bypass/Mini-gastric Bypass (OAGB/MGB) and Roux-en Y gastric bypass (RYGB) i. (bioportfolio.com)
  • 150 morbidly obese patients divided into to equal groups, group A underwent single anastomosis sleeve jejunal bypass with biliary limb length of 200 cm from the duodenal-jejunal flexure an. (bioportfolio.com)
  • A search for arteriovenous anastomoses in human skin using ultrasound Doppler. (exergen.com)
  • Vascular access dysfunction is a major source of morbidity for patients treated with maintenance hemodialysis, and the need for novel treatment approaches for hemodialysis arteriovenous (AV) access failure is well recognized. (asnjournals.org)
  • The connectors are preferably adapted to produce an end-to-side anastomosis at a graft/coronary artery junction. (google.co.uk)
  • There are no arteriovenous shunts in the normal retina, but some arteriovenous communications of the retina have been described and classified. (bmj.com)
  • Vascular fistulae are abnormal anastomoses, where blood vessels join together through injury, inflammation, or disease. (medicalnewstoday.com)
  • 3-5 If the integrity of the pulmonary vasculature is dependent on hepatic factor then its abrupt elimination from the pulmonary circulation after BCPA would lead to early diffusion-perfusion impairment and arteriovenous intrapulmonary shunting before the development of PAVM. (bmj.com)
  • Results: The filling of perforators and their larger caliber branches appeared unchanged between low- and high-pressure injections, with no significant increase in true anastomoses (P = 0.32) and no association between maximum perfusion pressure and number (P = 0.94) or caliber (P = 0.10). (edu.au)
  • 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)
  • Archer et al proposed a classification for arteriovenous communications of the retina. (bmj.com)
  • Mansour AM, Walsh JB, Henkind P. Arteriovenous anastomoses of the retina. (healio.com)
  • Surgeons often use staples or stitches when connecting tissues during an anastomosis. (medicalnewstoday.com)
  • The Use of Arteriovenous Anastomosis for Replantation of the Distal Phalanx of the Fingers. (wheelessonline.com)
  • Distal anastomosis devices and associated methodology are described herein. (google.co.uk)
  • Retinal Arteriovenous Malformation Occlusion and Optic Nerve Drusen: Casuality or Causality? (healio.com)
  • This article reviews the substantial progress and ongoing challenges in developing novel treatments for arteriovenous vascular access failure and focuses on localized rather than systemic interventions. (asnjournals.org)
  • 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)
  • In medical terminology, anastomosis is when surgeons connect two tube-like structures inside the body. (medicalnewstoday.com)
  • In surgery, an anastomosis occurs when a surgeon or interventionalist connects two tube-like structures in the body. (medicalnewstoday.com)
  • An anastomosis is a surgical connection between two structures. (medlineplus.gov)
  • 2. anastomosis of two sections of colon, such as with partial colectomy or when an ileostomy is closed. (thefreedictionary.com)
  • 2. anastomosis of two sections of colon, as with partial colectomy or closure of an ileostomy. (thefreedictionary.com)
  • Augmenting BCPA with an additional source of blood flow containing hepatic factor limits the degree of intrapulmonary arteriovenous shunting and may help provide successful longer term palliation. (bmj.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)