Arteriovenous shunt surgical. Medical search

Surgical shunt allowing direct passage of blood from an artery to a vein. (From Dorland, 28th ed)

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.

Large endothelium-lined venous channels situated between the two layers of DURA MATER, the endosteal and the meningeal layers. They are devoid of valves and are parts of the venous system of dura mater. Major cranial sinuses include a postero-superior group (such as superior sagittal, inferior sagittal, straight, transverse, and occipital) and an antero-inferior group (such as cavernous, petrosal, and basilar plexus).

Congenital, inherited, or acquired abnormalities involving ARTERIES; VEINS; or venous sinuses in the BRAIN; SPINAL CORD; and MENINGES.

Abnormal formation of blood vessels that shunt arterial blood directly into veins without passing through the CAPILLARIES. They usually are crooked, dilated, and with thick vessel walls. A common type is the congenital arteriovenous fistula. The lack of blood flow and oxygen in the capillaries can lead to tissue damage in the affected areas.

Veins draining the cerebrum.

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.

Congenital vascular anomalies in the brain characterized by direct communication between an artery and a vein without passing through the CAPILLARIES. The locations and size of the shunts determine the symptoms including HEADACHES; SEIZURES; STROKE; INTRACRANIAL HEMORRHAGES; mass effect; and vascular steal effect.

Duration of blood flow after skin puncture. This test is used as a measure of capillary and platelet function.

The outermost of the three MENINGES, a fibrous membrane of connective tissue that covers the brain and the spinal cord.

An indandione that has been used as an anticoagulant. Phenindione has actions similar to WARFARIN, but it is now rarely employed because of its higher incidence of severe adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p234)

A method of hemostasis utilizing various agents such as Gelfoam, silastic, metal, glass, or plastic pellets, autologous clot, fat, and muscle as emboli. It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, gastrointestinal bleeding, epistaxis, hypersplenism, certain highly vascular tumors, traumatic rupture of blood vessels, and control of operative hemorrhage.

Surgical creation of a communication between a cerebral ventricle and the peritoneum by means of a plastic tube to permit drainage of cerebrospinal fluid for relief of hydrocephalus. (From Dorland, 28th ed)

Formation and development of a thrombus or blood clot in the blood vessel.

Tubes inserted to create communication between a cerebral ventricle and the internal jugular vein. Their emplacement permits draining of cerebrospinal fluid for relief of hydrocephalus or other condition leading to fluid accumulation in the ventricles.

The TEMPERATURE at the outer surface of the body.

A branch of the celiac artery that distributes to the stomach, pancreas, duodenum, liver, gallbladder, and greater omentum.

Radiography of the vascular system of the brain after injection of a contrast medium.

Veins in the neck which drain the brain, face, and neck into the brachiocephalic or subclavian veins.

A genus of the subfamily CERCOPITHECINAE, family CERCOPITHECIDAE, consisting of five named species: PAPIO URSINUS (chacma baboon), PAPIO CYNOCEPHALUS (yellow baboon), PAPIO PAPIO (western baboon), PAPIO ANUBIS (or olive baboon), and PAPIO HAMADRYAS (hamadryas baboon). Members of the Papio genus inhabit open woodland, savannahs, grassland, and rocky hill country. Some authors consider MANDRILLUS a subgenus of Papio.

Surgical venous shunt between the portal and systemic circulation to effect decompression of the portal circulation. It is performed primarily in the treatment of bleeding esophageal varices resulting from portal hypertension. Types of shunt include portacaval, splenorenal, mesocaval, splenocaval, left gastric-caval (coronary-caval), portarenal, umbilicorenal, and umbilicocaval.

The flow of BLOOD through or around an organ or region of the body.

Radiography of blood vessels after injection of a contrast medium.

Surgical portasystemic shunt between the portal vein and inferior vena cava.

An operation for the continuous emptying of ascitic fluid into the venous system. Fluid removal is based on intraperitoneal and intrathoracic superior vena cava pressure differentials and is performed via a pressure-sensitive one-way valve connected to a tube traversing the subcutaneous tissue of the chest wall to the neck where it enters the internal jugular vein and terminates in the superior vena cava. It is used in the treatment of intractable ascites.

The attachment of PLATELETS to one another. This clumping together can be induced by a number of agents (e.g., THROMBIN; COLLAGEN) and is part of the mechanism leading to the formation of a THROMBUS.

The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)

Excessive accumulation of cerebrospinal fluid within the cranium which may be associated with dilation of cerebral ventricles, INTRACRANIAL HYPERTENSION; HEADACHE; lethargy; URINARY INCONTINENCE; and ATAXIA.

Abnormal increase of resistance to blood flow within the hepatic PORTAL SYSTEM, frequently seen in LIVER CIRRHOSIS and conditions with obstruction of the PORTAL VEIN.

Dilated blood vessels in the ESOPHAGUS or GASTRIC FUNDUS that shunt blood from the portal circulation (PORTAL SYSTEM) to the systemic venous circulation. Often they are observed in individuals with portal hypertension (HYPERTENSION, PORTAL).

A syndrome characterized by central nervous system dysfunction in association with LIVER FAILURE, including portal-systemic shunts. Clinical features include lethargy and CONFUSION (frequently progressing to COMA); ASTERIXIS; NYSTAGMUS, PATHOLOGIC; brisk oculovestibular reflexes; decorticate and decerebrate posturing; MUSCLE SPASTICITY; and bilateral extensor plantar reflexes (see REFLEX, BABINSKI). ELECTROENCEPHALOGRAPHY may demonstrate triphasic waves. (From Adams et al., Principles of Neurology, 6th ed, pp1117-20; Plum & Posner, Diagnosis of Stupor and Coma, 3rd ed, p222-5)

Developmental abnormalities in any portion of the ATRIAL SEPTUM resulting in abnormal communications between the two upper chambers of the heart. Classification of atrial septal defects is based on location of the communication and types of incomplete fusion of atrial septa with the ENDOCARDIAL CUSHIONS in the fetal heart. They include ostium primum, ostium secundum, sinus venosus, and coronary sinus defects.

Vein formed by the union (at the hilus of the spleen) of several small veins from the stomach, pancreas, spleen and mesentery.

A system of vessels in which blood, after passing through one capillary bed, is conveyed through a second set of capillaries before it returns to the systemic circulation. It pertains especially to the hepatic portal system.

A short thick vein formed by union of the superior mesenteric vein and the splenic vein.

Accumulation or retention of free fluid within the peritoneal cavity.

Abnormalities in any part of the HEART SEPTUM resulting in abnormal communication between the left and the right chambers of the heart. The abnormal blood flow inside the heart may be caused by defects in the ATRIAL SEPTUM, the VENTRICULAR SEPTUM, or both.

Bleeding in any segment of the GASTROINTESTINAL TRACT from ESOPHAGUS to RECTUM.

A form of compensated hydrocephalus characterized clinically by a slowly progressive gait disorder (see GAIT DISORDERS, NEUROLOGIC), progressive intellectual decline, and URINARY INCONTINENCE. Spinal fluid pressure tends to be in the high normal range. This condition may result from processes which interfere with the absorption of CSF including SUBARACHNOID HEMORRHAGE, chronic MENINGITIS, and other conditions. (From Adams et al., Principles of Neurology, 6th ed, pp631-3)

Short thick veins which return blood from the kidneys to the vena cava.

The circulation of the BLOOD through the LUNGS.

A condition in which the FORAMEN OVALE in the ATRIAL SEPTUM fails to close shortly after birth. This results in abnormal communications between the two upper chambers of the heart. An isolated patent ovale foramen without other structural heart defects is usually of no hemodynamic significance.

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 specialty in which manual or operative procedures are used in the treatment of disease, injuries, or deformities.

Analog or digital communications device in which the user has a wireless connection from a telephone to a nearby transmitter. It is termed cellular because the service area is divided into multiple "cells." As the user moves from one cell area to another, the call is transferred to the local transmitter.

Various branches of surgical practice limited to specialized areas.

Hospital department which administers all departmental functions and the provision of surgical diagnostic and therapeutic services.

Operations carried out for the correction of deformities and defects, repair of injuries, and diagnosis and cure of certain diseases. (Taber, 18th ed.)

Changing an open-chain hydrocarbon to a closed ring. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)

Organic compounds containing a carbonyl group in the form -CHO.

Sites of stenosis in AV fistulae for haemodialysis access. (1/955)

BACKGROUND: A large proportion of late failures of radiocephalic arteriovenous fistulae are related to the progression of intimal hyperplasia. The aetiology of this process is still unknown but the fistula configuration and resultant haemodynamics have been implicated. This clinical study was devised to identify sites of stenosis in patients with fistulae and relate the findings to various clinical and geometrical parameters. METHOD: Measurement of anastomotic length and angle was made intraoperatively in 25 consecutive fistulae. Post-operative assessment was carried out at regular intervals using duplex and colour-flow ultrasonography. RESULTS: Stenoses were present in all 25 of the fistulae studied at 3 months. The stenoses could be classified to three specific sites: at the anastomosis (Type 1), on the inner wall of the curved region of the cephalic vein (Type 2) and just proximal to this curved segment where the vein straightens out (Type 3). Most of Type 1 and Type 2 stenoses were not progressive while Type 3 stenoses were generally progressive. CONCLUSION: These findings emphasize the need for an effective surveillance programme of AV fistulae. (+info)

Association of plasma fibrinogen concentration with vascular access failure in hemodialysis patients. (2/955)

BACKGROUND: Elevated plasma fibrinogen is an important risk factor for coronary artery disease in the general population and patients with chronic renal failure. High plasma fibrinogen may trigger thrombus formation in arteriovenous fistulas. We performed a prospective, cohort study to evaluate the association of plasma fibrinogen concentration with vascular access failure in patients undergoing long-term haemodialysis. METHODS: Between September 1989 and October 1995, 144 patients underwent a vascular access operation. In March 1997, 102 patients (56 M, 46 F) who had been followed up for more than 18 months (median; 37 months, range; 18-102 months) were included in the study. The median age of the patients was 52 years (range; 19-78 years). In 35 patients, renal disease was secondary to diabetes mellitus. The type of vascular access was a polytetrafluoroethylene (PTFE) graft in 17 patients. Seventy-seven patients received recombinant human erythropoietin (r-HuEPO) therapy during the follow-up period. Plasma fibrinogen, albumin, total cholesterol, hematocrit, platelets and creatinine were measured at the time of operation. Vascular access failure was defined as the occurrence of complications requiring transluminal angioplasty, thrombolytic therapy or surgical repair. RESULTS: Thirty-eight patients had at least one vascular access failure and the incidence was 0.3 (range; 0-2.4) episodes per patient-year. The survival rate of vascular access was 78% (native fistula; 80%, PTFE graft; 71%) after 12 months and 70% (native fistula; 73%, PTFE graft; 51%) after 24 months. Older age, a PTFE graft, r-HuEPO therapy, higher hematocrit, lower albumin and higher fibrinogen levels were significantly associated with vascular access failure, whereas gender, diabetes mellitus, total cholesterol and platelet count were not. Plasma fibrinogen was inversely correlated with albumin (r=-0.38, P=0.001). The cumulative vascular access survival was significantly lower in patients with high plasma fibrinogen levels (> or = 460 mg/dl) compared with patients with low levels (< 460 mg/dl) (P=0.007). Independent risk factors for vascular access failure analysed by Cox's proportional hazards model were older age (RR; 1.36 by 10-year increment), higher fibrinogen level (RR; 1.20 by 100 mg/dl increment), PTFE graft (RR; 2.28) and r-HuEPO therapy (RR; 3.79). CONCLUSION: High plasma fibrinogen level is an independent risk factor for vascular access failure in haemodialysis patients. (+info)

Right atrial bypass grafting for central venous obstruction associated with dialysis access: another treatment option. (3/955)

PURPOSE: Central venous obstruction is a common problem in patients with chronic renal failure who undergo maintenance hemodialysis. We studied the use of right atrial bypass grafting in nine cases of central venous obstruction associated with upper extremity venous hypertension. To better understand the options for managing this condition, we discuss the roles of surgery and percutaneous transluminal angioplasty with stent placement. METHODS: All patients had previously undergone placement of bilateral temporary subclavian vein dialysis catheters. Severe arm swelling, graft thrombosis, or graft malfunction developed because of central venous stenosis or obstruction in the absence of alternative access sites. A large-diameter (10 to 16 mm) externally reinforced polytetrafluoroethylene (GoreTex) graft was used to bypass the obstructed vein and was anastomosed to the right atrial appendage. This technique was used to bypass six lesions in the subclavian vein, two lesions at the innominate vein/superior vena caval junction, and one lesion in the distal axillary vein. RESULTS: All patients except one had significant resolution of symptoms without operative mortality. Bypass grafts remained patent, allowing the arteriovenous grafts to provide functional access for 1.5 to 52 months (mean, 15.4 months) after surgery. CONCLUSION: Because no mortality directly resulted from the procedure and the morbidity rate was acceptable, this bypass grafting technique was adequate in maintaining the dialysis access needed by these patients. Because of the magnitude of the procedure, we recommend it only for the occasional patient in whom all other access sites are exhausted and in whom percutaneous dilation and/or stenting has failed. (+info)

Volume flow measurement in hemodialysis shunts using time-domain correlation. (4/955)

Volume flow was measured in 58 hemodialysis shunts (32 grafts and 26 radial fistulas) using the color velocity imaging-quantification method. This method is based on time-domain correlation for velocity calculation and integration of time-varying velocity profiles generated by M-mode sampling. Measurements were made in the brachial artery to estimate radial fistula flow or directly in the grafts. Intraoperator reproducibility was 14.9% for fistulas and 11.6% for grafts. Flow rate was significantly lower in abnormal shunts associated with a functional disorder or a morphologic complication (808 ml/min +/- 484) than in shunts associated with no abnormalities (1401 ml/min +/- 562). Receiver operating characteristic curves showed that a flow rate of 900 ml/min for fistulas and 1300 ml/min for grafts provided 81% and 79% sensitivity and 79% and 67% specificity, respectively. A functional disorder or a morphologic complication was associated with all fistulas and grafts in which flow rates were lower than 500 ml/min and 800 ml/min, respectively. (+info)

Prospective randomised trial of distal arteriovenous fistula as an adjunct to femoro-infrapopliteal PTFE bypass. (5/955)

OBJECTIVES: To compare graft patency and limb salvage rate following femoro-infrapopliteal bypass using ePTFE grafts with and without the addition of adjuvant arterio-venous fistula. DESIGN: A prospectively randomised controlled trial. MATERIALS: Patients referred to two teaching hospital vascular surgery units in the U.K. for the treatment of critical limb ischaemia. METHODS: Eighty-seven patients (M:F; 2.3:1) undergoing 89 femoro-intrapopliteal bypass operations with ePTFE grafts for critical limb ischaemia were randomly allocated to have AVF included in the operative procedure (n = 48) or to a control group without AVF (n = 41). An interposition vein-cuff was incorporated at the distal anastomosis in all patients. RESULTS: The cumulative rates of primary patency and limb salvage at 1-year after operation for patients with AVF were 55.2% and 54.1% compared to 53.4% and 43.2%, respectively, for the control group. The differences between the AVF and control groups did not reach statistical significance, in terms of either graft patency or limb salvage, at any stage after operation (Log-Rank test). CONCLUSIONS: AVF confers no additional significant clinical advantage over interposition vein cuff in patients having femoro-infrapopliteal bypass with ePTFE grants for critical limb ischaemia. (+info)

Homocyst(e)ine and vascular access complications in haemodialysis patients: insights into a complex metabolic relationship. (6/955)

BACKGROUND: As elevated total homocyst(e)ine (tHcy) is associated with increased risk of vascular thrombosis, we hypothesized that the elevated levels of tHcy seen in patients on haemodialysis may be associated with an increased risk of thrombosis of native arteriovenous fistulae (vascular access failure). Our study was designed to investigate the relationship between tHcy and vascular access failure. The relationship between tHcy and mortality was explored as a secondary analysis. METHODS: The study comprised a cross-sectional analysis of 96 haemodialysis patients at a single university-affiliated hospital and a subsequent 9-month prospective follow-up of 88 of the 96 patients. RESULTS: Levels of tHcy (median 30 micromol/l) were elevated. In the initial cross-sectional sample, there was an inverse relationship between tHcy and history of vascular access failure which was not observed in the prospective study. Variables influencing the risk of vascular access failure in the prospective study included history of previous vascular access failure (RR=2.93, P=0.03), use of antiplatelet agents (RR=0.13, P=0.01), increased urea reduction ratio (RR=0.55 for a 5% increase, P=0.01) and increased weight (RR=0.61 for a 10 kg increase, P=0.02). Secondary analysis showed an unexpected inverse relationship between tHcy and mortality (RR=0.033 for 1 log increase in tHcy, P=0.006), such that the lower levels of tHcy were associated with an increased risk of death in short-term follow-up. CONCLUSION: We did not demonstrate a relationship between tHcy and risk of vascular access failure. Patients with the lowest levels of tHcy appeared to be at increased risk of death in this short-term follow-up. The relationship of tHcy to vascular access complications and death in haemodialysis patients appears complex and requires further study. (+info)

Effects of arteriovenous fistulas on cardiac oxygen supply and demand. (7/955)

BACKGROUND: Arteriovenous (AV) fistulas used for hemodialysis access may affect cardiac load by increasing the preload while decreasing the afterload. In dogs, AV fistulas have also been shown to affect coronary perfusion negatively. We investigated the net effect of AV fistulas on cardiac oxygen supply and demand. METHODS: Aortic pressure waves were reconstructed from finger pressure recordings obtained on the nonfistula arm using a wave-form filter. Changes in systolic, mean, and diastolic aortic pressure were calculated, together with changes in heart rate (HR), stroke volume (SV), cardiac output (CO), and systemic vascular resistance (SVR) during a 60-second compression of AV fistulas in 10 patients. Changes in cardiac supply and demand were estimated by calculating the area under the aortic pressure curve during diastole [diastolic pressure time index (DPTI)] and systole [systolic pressure time index (SPTI)], respectively. RESULTS: During fistula compression, systolic, mean and diastolic pressure increased by 4.2 +/- 4.3, 2.6 +/- 3.0, and 2.8 +/- 2.9 mm Hg (mean +/- SD, all P < 0.05). The HR decreased by 3.8 +/- 2.5 beats per minute (P < 0.01), and SV decreased 3.7 +/- 6.1% (NS). CO decreased 9.4 +/- 8.6%, and SVR increased 14.3 +/- 11.7% (both P < 0.05). The SPTI increased by 1.5 +/- 1.5 mm Hg.sec (P < 0.01), and the DPTI increased by 7.6 +/- 8.1 mm Hg.sec (14.8% increase, P < 0.05) during compression. The ratio of supply and demand (DPTI/SPTI) improved by 13.5 +/- 13.0% (P < 0.01) when the fistula was compressed. CONCLUSION: AV fistulas have a small effect on left ventricular oxygen demand, but decrease cardiac oxygen supply considerably. (+info)

Differential regulation of IGF-I, its receptor and GH receptor mRNAs in the right ventricle and caval vein in volume-loaded genetically hypertensive and normotensive rats. (8/955)

It has been suggested, mainly by in vitro findings, that cardiovascular tissue in the spontaneously hypertensive rat (SHR) should be more prone to proliferate/hypertrophy than that of the Wistar-Kyoto rat (WKY). The present study tests the hypothesis that the tissue of the low-pressure compartment in SHR, being structurally similar to that of the WKY, shows an increased growth response due to activation of the GH-IGF-I system. An aortocaval fistula (ACF) was induced in 64 SHR and WKY male rats and 44 rats served as controls. They were all followed for 1, 2, 4 and 7 days after surgery. In separate groups of SHR (n=4) and WKY (n=3), central venous pressure was measured by telemetry recordings prior to opening of the fistula and for up to 16 h post-surgery. Systolic blood pressure was measured during the week post-surgery. The right ventricular (RV) and the caval vein IGF-I mRNA and RV IGF-I receptor and GH receptor mRNAs were quantitated by means of solution hybridisation assay. In rats with ACF the systolic blood pressure decreased, approximately 29% in SHR and 16% in WKY between 1 and 7 days post-surgery (P<0.05, n=5-6 in each group). SHR with ACF showed a transient elevation in central venous pressure vs WKY. Within the week following fistula induction both strains showed a similar, pronounced increase in RV hypertrophy. SHR with ACF showed a smaller, or even blunted, overall response with respect to activation of the GH-IGF-I system compared with WKY, the latter showing clear-cut elevation of gene expressions. Two days after shunt opening in SHR, RV and caval vein IGF-I mRNA increased by 57% and 108% (P<0.05 for both, n=5-6 in each group) respectively, and these expressions were then turned off, whereas RV GH receptor and IGF-I receptor mRNA expression remained unaffected compared with WKY rats. WKY rats showed on average a later and a greater response of GH-IGF-I system mRNA expression vs SHR. The present in vivo study suggests that the SHR requires less activation of the GH-IGF-I system for creating a given adaptive structural growth response. (+info)

... such as an arteriovenous fistula) or innate (such as the arteriovenous shunt of a metarteriole); and it may be natural (such as ... Surgical[edit]. An example of surgical anastomosis occurs when a segment of intestine, blood vessel, or any other structure are ... Surgical anastamosis techniques include Linear Stapled Anastomosis,[3] Hand Sewn Anastomosis,[3] End-to-End Anastomosis (EEA).[ ... Studies have been performed comparing various anastomosis approaches taking into account surgical "time and cost, postoperative ...

https://en.wikipedia.org/wiki/Anastomosis

... arteriovenous shunt, surgical MeSH E04.035.188 - cerebrospinal fluid shunts MeSH E04.035.188.850 - ventriculoperitoneal shunt ... peritoneovenous shunt MeSH E04.035.760 - portasystemic shunt, surgical MeSH E04.035.760.755 - portacaval shunt, surgical MeSH ... portasystemic shunt, surgical MeSH E04.100.814.790.790 - portacaval shunt, surgical MeSH E04.100.814.790.830 - portasystemic ... arteriovenous shunt, surgical MeSH E04.100.814.200 - blood vessel prosthesis implantation MeSH E04.100.814.300 - cerebral ...

https://en.wikipedia.org/wiki/List_of_MeSH_codes_(E04)

It is associated with amputees, haemodialysis (HD) patients with arteriovenous (AV) shunts, and patients with paralysed legs, ... Management includes compression therapy, wound care and surgical correction of AVM. Dapsone combined with leg elevation and ...

https://en.wikipedia.org/wiki/Acroangiodermatitis

If the myelogram is positive, angiography is required to show the extent of malformation and the exact site of the shunt. ... Spinal arteriovenous malformations (AVMs, or angiomatous malformations) are congenital (from birth) abnormalities of blood ... presentation and endovascular surgical management". Semin Neurol. 22 (2): 123-32. doi:10.1055/s-2002-36535. PMID 12524557. ... A bruit (unusual blood sounds) may be heard overlying the spinal arteriovenous malformation. Very occasionally, nevus (moles) ...

https://en.wikipedia.org/wiki/Vascular_myelopathy

In 1960 the use of a subcutaneous arteriovenous shunt along with the artificial kidney machine allowed hemodialysis for ... The surgical replacement of body parts also became possible and was used to treat ailing kidneys and joints such as knees and ... In 1962, in the US, Dow Corning developed the silicone gel-filled breast implant which was used by women for surgical breast ... Children were also often on the receiving end of the tonsillectomy a fashionable surgical procedure during these years. ...

https://en.wikipedia.org/wiki/Technological_and_industrial_history_of_20th-century_Canada

Arteriovenous subpapillary plexus shunting also occurs. Persistent vasoconstriction at the precapillary sphincter creates a ... There is no standard medical or surgical treatment for acrocyanosis, and treatment, other than reassurance and avoidance of ...

https://en.wikipedia.org/wiki/Acrocyanosis

... and progressive neurological deficits due to acute or chronic ischaemia caused by arteriovenous shunting. In the retina, the ... Patients with intracranial lesions have been treated with surgical intervention and in some cases, this procedure has been ... and progressive neurological deficits due to acute or chronic ischaemia caused by arteriovenous shunting. The facial features ... Bonnet-Dechaume-Blanc syndrome results from arteriovenous malformations. The exact cause of this disorder is unknown, and no ...

https://en.wikipedia.org/wiki/Bonnet–Dechaume–Blanc_syndrome

It often presents in infancy with cardiac failure because of extensive arteriovenous shunting within the lesion. It is the ... Surgical resection, radiotherapy, and chemotherapy have all been used to treat these masses, although studies on survival have ... Surgical resection, partial hepatectomy, and embolization of afferent vessels should be considered for severe cases. Low power ... indicating significant shunting, is seen on angiograms. Because most hemangioendotheliomas in infants sponanteously involute ...

https://en.wikipedia.org/wiki/Hemangioendothelioma

He did his surgical training at Cook County Hospital in Chicago. Fabian Udekwu was the first fully certified cardiothoracic ... Traumatic aneurysms and arteriovenous fistulas in Nigeria. Clinical aspects of pulmonary and pleural carcinoma in Nigeria. ... Odeku, E. L.; Antia, A. U.; Udekwu, F. A. O. (1970). "Persistent ascites following infected ventriculoperitoneal shunt". West ... Anyanwu, CH; Ude, AC; Swarup, AS; Umerah, BC; Udekwu, FA (August 1980). "Traumatic aneurysms and arteriovenous fistulas in ...

https://en.wikipedia.org/wiki/Fabian_Udekwu

Larger arteriovenous shunts correlate with greater hemodynamic effects and earlier symptom onset; small arteriovenous shunts ... Even after surgical treatment, the mortality rate remains as high as 39.4%. Most cases occur during infancy when the mortality ... The heart failure is due to the size of the arteriovenous shunt that can steal 80% or more of the cardiac output, with large ... The Arteriovenous Malformation Study Group (June 10, 1999). "Arteriovenous Malformations of the Brain in Adults". New England ...

https://en.wikipedia.org/wiki/Vein_of_Galen_aneurysmal_malformations

Arteriovenous fistula Sundt, Thoralf M.; Piepgras, David G. (1983-07-01). "The surgical approach to arteriovenous malformations ... MRIs are typically normal but can identify venous hypertension as a result of arterial-venous shunting. The Borden ... Type Ia - simple dural arteriovenous fistulas have a single meningeal arterial supply Type Ib - more complex arteriovenous ... Type I dural arteriovenous fistulas are supplied by meningeal arteries and drain into a meningeal vein or dural venous sinus. ...

https://en.wikipedia.org/wiki/Dural_arteriovenous_fistula

If bubbles appear in the left heart, this may indicate a shunt, such as a patent foramen ovale, atrial septal defect, ... Anesthesiologists can perform intra-operative TEE's during surgical cases and they interpret their own studies. Anyone ... ventricular septal defect or arteriovenous malformations in the lungs. If your doctor deems it necessary, a stress TTE may be ... for diastolic function Agitated saline bubble study for right to left shunting (PFO, ASD, VSD) With contrast, apical and mural ...

https://en.wikipedia.org/wiki/Transthoracic_echocardiogram

Arteriovenous shunting from the retinal periphery may cause venous tortuosity. Since the same occur in many other ocular ... Surgical procedures may be performed to treat complications like retinal detachments, nonclearing vitreous hemorrhage, and ...

https://en.wikipedia.org/wiki/Sickle_cell_retinopathy

... resulting in shunting of blood. This results in improperly oxygenated blood. (I67.1) Cerebral arteriovenous fistula, acquired ( ... For example, surgical treatment of fistulae in Crohn's disease can be effective, but if the Crohn's disease itself is not ... Coronary arteriovenous fistula, acquired (I28.0) Arteriovenous fistula of pulmonary vessels Pulmonary arteriovenous fistula: ... Surgical and medical treatment: Complications from gallbladder surgery can lead to biliary fistulas.[citation needed] As well ...

https://en.wikipedia.org/wiki/Fistula

Surgical approaches to dissections can include reconstructing the aorta, surgical bypass and surgical fenestration. Like other ... The Arteriovenous Fistula (AVF) is the preferred method. [Arteriovenous Fistula] (AVF) are created surgically by directly ... A transjugular intrahepatic portosystemic shunt (TIPS) is a procedure an interventional radiologist performs to create a shunt ... European Journal of Surgical Oncology: The Journal of the European Society of Surgical Oncology and the British Association of ...

https://en.wikipedia.org/wiki/Interventional_radiology

A dental cone beam scan offers useful information when it comes to the assessment and planning of surgical implants. The ... Vascular Anomalies: After correction of arteriovenous malformations with coiling, CBCT sensitively detects small infarcts in ... tissue that has been "sacrificed" during the procedure to prevent further shunting. The infarcted tissue appears as a small ... ability to combine 3 dimensional and weight bearing information which are of the utmost importance in diagnosis and surgical ...

https://en.wikipedia.org/wiki/Cone_beam_computed_tomography

If a source of bleeding can be identified (sources are frequently not found), then surgical correction of the bleeding source ... The chronic bleeding can come from many sources such as from an arteriovenous malformation or cavernous malformation, ... myxopapillary ependymoma of the spinal cord, from chronic subdural hematoma, from a ventricular shunt, or from chronic ...

https://en.wikipedia.org/wiki/Superficial_siderosis

"The effect of embolization with N-butyl cyanoacrylate prior to surgical resection of cerebral arteriovenous malformations". ... leading to a right-to-left blood shunt. They have no symptoms in up to 29% of all cases, however they can give rise to serious ... Arteriovenous Malformation Information Page at NINDS Stapf, C.; Mast, H.; Sciacca, R. R.; Choi, J. H.; Khaw, A. V.; Connolly, E ... Research trials in arterio-venous malformations; Rustam Al-Shahi Salman Archived February 17, 2012, at the Wayback Machine. ...

https://en.wikipedia.org/wiki/Arteriovenous_malformation

... soft-tissue mass usually without direct arteriovenous shunting. On MRI, IHs show a well-circumscribed lesion with intermediate ... Surgical excision of hemangiomas is rarely indicated, and limited to lesions which fail medical therapy (or when it is ... may leave behind stretched skin or fibrofatty tissue that may be disfiguring or require future surgical correction. Areas of ...

https://en.wikipedia.org/wiki/Infantile_hemangioma

Surgical Neurology International, its successor publication, was also headed by James I. Ausman, M.D., editor-in-chief. Faria ... Faria MA Jr; O'Brien MS; Tindall GT (1980). "A technique for the evaluation of ventricular shunts using Amipaque and ... "Multifocal Intracranial Arteriovenous Malformations". Neurosurgery. 7 (5): 440-4. doi:10.1097/00006123-198011000-00002. PMID ... Faria completed his surgical internship at Shands Teaching Hospital at the University of Florida (1977-1978), and his ...

https://en.wikipedia.org/wiki/Miguel_A._Faria_Jr.

Deviations from the above described behavior can occur in arterialized hemangiomas or those containing arterio-venous shunts. ... Also they are successfully applied in the treatment of liver metastases, where surgical resection is contraindicated. They are ... the presence of arterio-arterial and arterio-venous shunts, lack or incompetence of arterial precapillary sphincter made up of ... surgical resection, local ablative therapies) continuing ultrasound screening is recommended first at 1 month then at 3 months ...

https://en.wikipedia.org/wiki/Ultrasonography_of_liver_tumors

Comparative study oftwo surgical techniques in the treatment of varicose veins of the lower extremities: results after five ... In 1980 he described the Fistula Flow Ratio (French 'RDF') to assess the flow of arteriovenous fistulas, especially in renal ... Dynamic fractionizing of hydrostatic pressure, close and open shunt, vicarious varicose evolution: how have these concepts made ... P.Zamboni et al.: Minimally Invasive Surgical management of primary venous Ulcer vs. Compression. Eur J vasc Endovasc Surg 00,1 ...

https://en.wikipedia.org/wiki/Claude_Franceschi

Intrapulmonary arteriovenous shunts are dormant capillaries within the lungs that become recruited when venous pressures become ... Common Surgical Diseases. (2nd ed.). 391-394 ISBN 978-0-387-75245-7. ... In general, a shunt may be within the heart or lungs, and cannot be corrected by administering oxygen alone. Shunting may occur ... Shunting also occurs by the smallest cardiac veins, which empty directly into the left ventricle. Physiological shunts, occur ...

https://en.wikipedia.org/wiki/Hypoxemia

Singh S, Taylor MA (August 2010). "Con: the FloTrac device should not be used to follow cardiac output in cardiac surgical ... Tanke RB, van Heijst AF, Klaessens JH, Daniels O, Festen C (January 2004). "Measurement of the ductal L-R shunt during ... ISBN 978-1-4160-2328-9. "Arteriovenous oxygen difference". Sports Medicine, Sports Science and Kinesiology. Net Industries. ... It is used for managing fluid optimisation in high-risk surgical or critically ill patients. A physiologic optimization program ...

https://en.wikipedia.org/wiki/Cardiac_output

The Atrial switch operation is an alternative surgical option when the arterial switch is not feasible due to the particular ... Transposed vessels can present with atriovenous, ventriculoarterial and/or arteriovenous discordance. The effects may range ... the most common type being intracardiac shunts such as atrial septal defect including patent foramen ovale, ventricular septal ...

https://en.wikipedia.org/wiki/Transposition_of_the_great_vessels

Early surgical treatment of epilepsy was primitive in Ancient Greek, Roman and Egyptian medicine. The 19th century saw the rise ... Arteriovenous malformation (AVM) is a treatable medical condition that can cause seizures, headaches, and brain hemorrhages. ... Seizures in a person with a shunt may indicate failure Hemorrhagic stroke can occasionally present with seizures, embolic ...

https://en.wikipedia.org/wiki/Seizure

Antunes, J.L., Muraszko, K., Quest, D.O. and Carme P.W.l: Surgical strategies in the management of tumours of the anterior ... Antunes, J.L., DiGiacinto, G.V., Michelsen, W.J.: Giant hemispheric arteriovenous fistula in an infant. Surg. Neurol. 7:45-48, ... Steinberger, A., Antunes, J.L., Michelsen, W.J.: Pneumocephalus after ventriculoatrial shunt. Neurosurg. 5:708-710, 1979 ... Antunes, J.L.: Surgical approaches to tumors of the anterior third ventricle. Contemporary Neurosurg. 4:1-6, 1982 ...

https://pt.wikipedia.org/wiki/João_Lobo_Antunes

The body in hypovolemic shock prioritizes getting oxygen to the brain and heart, and shunts blood away from nonvital organs and ... Other causes of hemorrhagic shock include bleed from an ectopic pregnancy, bleeding from surgical intervention, or vaginal ... and arteriovenous malformation. Except for the two most common causes, the less common causes are intra-operative and post- ... inadvertent biopsy of arteriovenous malformation, severed artery., tumors or abscess erosion into major vessels, post-partum ...

https://en.wikipedia.org/wiki/Hypovolemic_shock

"VP shunts"). In pediatric practice, VP shunts are commonly placed in cases of congenital hydrocephalus. The most common ... developed surgical instruments that resemble surgical tools of today, gave accounts for creating aseptic environments using ... Vascular malformations (i.e. , arteriovenous malformations, venous angiomas, cavernous angiomas, capillary telangectasias) of ... Trephinations are crude surgical holes made through either scraping, cutting, or drilling away the layers of bone, and great ...

https://fa.wikipedia.org/wiki/جراحی_مغز_و_اعصاب?match=en

Surgical[edit]. Atrial septostomy is a surgical procedure that creates a communication between the right and left atria. It ... right-to-left cardiac shunting and severe hypoxemia.[12] ... Arteriovenous malformation. *Telangiectasia *Hereditary ... It is the surgical removal of an organized thrombus (clot) along with the lining of the pulmonary artery; it is a very ... Pulmonary thromboendarterectomy (PTE) is a surgical procedure that is used for chronic thromboembolic pulmonary hypertension. ...

https://en.wikipedia.org/wiki/Pulmonary_Hypertension

Treatment varies between therapy and surgical intervention by the use of shunts.[citation needed] ... Clinical guideline 46: Venous thromboembolism (surgical). London, April 2007. *^ a b Geerts WH, Pineo GF, Heit JA, et al. ( ... In people with a "shunt" (a connection between the pulmonary and systemic circulation), either in the heart or in the lung, a ... Brunner, Lillian (2010). Brunner & Suddarth's textbook of medical-surgical nursing. Philadelphia: Wolters Kluwer Health/ ...

https://en.wikipedia.org/wiki/Thrombosis

Low oxygen saturation and disturbed arterial blood gas readings support the proposed diagnosis by suggesting a pulmonary shunt ... Recurrent pulmonary oedema in hypertension due to bilateral renal artery stenosis: treatment by angioplasty or surgical ... Arteriovenous malformation. *Hantavirus pulmonary syndrome. *High altitude pulmonary edema (HAPE)[14][15] ...

https://en.wikipedia.org/wiki/Pulmonary_edema

As the child grows, so does the heart and the shunt may need to be revised in order to meet the body's requirements.[6][8][9] ... Awori, Mark Nelson; Mehta, Nikita P.; Mitema, Frederick O.; Kebba, Naomi (18 May 2017). "Optimal -Score Use in Surgical ... A shunt can be created between the aorta and the pulmonary artery to help increase blood flow to the lungs. ...

https://en.wikipedia.org/wiki/Pulmonary_atresia

The first surgical intervention was performed by Norman Dott, who was a pupil of Harvey Cushing then working in Edinburgh. He ... or occasionally a permanent shunt.[4][24] Relief of hydrocephalus can lead to an enormous improvement in a person's condition.[ ... SAH in a person known to have seizures is often diagnostic of a cerebral arteriovenous malformation.[7] ... Ogilvy CS, Carter BS (May 1998). "A proposed comprehensive grading system to predict outcome for surgical management of ...

https://en.wikipedia.org/wiki/Subarachnoid_hemorrhage

Treatment varies between therapy and surgical intervention by the use of shunts.[citation needed] ... Clinical guideline 46: Venous thromboembolism (surgical). London, April 2007.. *^ a b Geerts WH, Pineo GF, Heit JA, et al. ( ... In people with a "shunt" (a connection between the pulmonary and systemic circulation), either in the heart or in the lung, a ... In patients with medical rather than surgical illness, LMWH too is known to prevent thrombosis,[26][27] and in the United ...

https://en.wikipedia.org/wiki/Vascular_thrombosis

A common procedure performed in neurosurgery is the placement of ventriculo-peritoneal shunt (VP shunt). In pediatric practice ... Unlike most other surgical specialties, it currently has its own independent training pathway which takes around eight years ( ... arteriovenous malformations, venous angiomas, cavernous angiomas, capillary telangectasias) of the brain and spinal cord ... During the Middle Ages in Al-Andalus from 936 to 1013 AD, Al-Zahrawi performed surgical treatments of head injuries, skull ...

https://en.wikipedia.org/wiki/Neurosurgery

"Arteriovenous Shunt, Surgical" by people in this website by year, and whether "Arteriovenous Shunt, Surgical" was a major or ... "Arteriovenous Shunt, Surgical" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH ( ... Arteriovenous Shunt, Surgical*Arteriovenous Shunt, Surgical. *Surgical Arteriovenous Shunt. *Shunt, Surgical Arteriovenous ... Below are the most recent publications written about "Arteriovenous Shunt, Surgical" by people in Profiles. ...

https://profiles.umassmed.edu/display/116452

Arteriovenous Shunt Creation. *Axillary Lymph Node Dissection. *Bladder Surgery. *Breast Surgical Procedure ... Removal of Arteriovenous Shunt for Renal Dialysis. *Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, ...

https://www.healthgrades.com/physician/dr-michael-niehaus-28t6x

Arteriovenous Shunt Creation. *Axillary Lymph Node Dissection. *Biopsy of Breast. *Breast Surgical Procedure ... Removal of Arteriovenous Shunt for Renal Dialysis. *Removal of Reproductive Organs (Hysterectomy, Oophorectomy, Salpingectomy, ...

https://www.healthgrades.com/physician/dr-annette-shores-yd4s4

Surgical obliteration was performed, and a postoperative TRSMRA (case 4b) showed complete obliteration of the shunt. Clinically ... early venous shunting) or low suspicion (no evidence of early venous shunting). The level of the arteriovenous shunting was ... TRSMRA showed early venous shunting in 6 of the 11 patients with a suspected arteriovenous shunt, all of which were confirmed ... Spinal arteriovenous shunt is a lesion that can mimic neoplasm, demyelination, or infection on physical examination and imaging ...

http://www.ajnr.org/content/28/9/1806.full

Arteriovenous Shunt, Surgical* / nursing * Blood Coagulation / drug effects * Drug Interactions * Drug Monitoring ...

https://pubmed.ncbi.nlm.nih.gov/9801499/?dopt=Abstract

Nursing care with surgical arteriovenous shunt in renal dialysis: a validation study / Cuidado de enfermería con la derivación ... Nursing care with surgical arteriovenous shunt in renal dialysis: a validation study ... to validate a care protocol for the monitoring and prevention of arteriovenous fistula complications. Methods:. a validation ... the protocol proposes nursing care capable of preventing and monitoring arteriovenous fistula complications, punctured with a ...

https://search.bvsalud.org/gim/resource/en/biblio-1125925

... infection-related and cardiovascular mortality risk as compared to patients with an arteriovenous access. ... Arteriovenous Shunt, Surgical* * Catheters, Indwelling / adverse effects* * Cohort Studies * Female * Follow-Up Studies ... Results: Of the 1109 patients, 919 had an arteriovenous access and 190 had a catheter. The mortality rate was 76 per 1000 ... The adjusted HRs in elderly patients with a catheter as compared to elderly patients with an arteriovenous access were 1.54 (95 ...

https://pubmed.ncbi.nlm.nih.gov/21282302/?dopt=Abstract

... by Doppler echocardiography in a neonate with a coexisting superior cavopulmonary shunt and an aortopulmonary shunt. During ... Arteriovenous Shunt, Surgical. Echocardiography, Doppler. Fatal Outcome. Heart Defects, Congenital / physiopathology, surgery ... by Doppler echocardiography in a neonate with a coexisting superior cavopulmonary shunt and an aortopulmonary shunt. During ...

http://www.biomedsearch.com/nih/Competitive-pulmonary-flow-in-infancy/10077395.html

Arteriovenous (AV) fistulas for hemodialysis access, constructed with the use of interposition grafts, are often complicated by ... Arteriovenous Shunt, Surgical*. Blood Vessel Prosthesis*. Catheters, Indwelling*. Elasticity. Female. Forearm / blood supply. ... Arteriovenous (AV) fistulas for hemodialysis access, constructed with the use of interposition grafts, are often complicated by ...

http://www.biomedsearch.com/nih/Mismatch-in-elastic-properties-around/7873735.html

Arteriovenous shunt. US4762128 *. 9 Dic 1986. 9 Ago 1988. Advanced Surgical Intervention, Inc.. Method and apparatus for ... Shunt device 150 has been placed in a surgical or interventional procedure, or a combination of the two. In an open surgical ... Implantable arteriovenous shunt device. US20050107733 *. 7 Oct 2004. 19 May 2005. Faul John L.. Implantable arterio-venous ... Implantable arteriovenous shunt device. US20050277964 *. 13 Jun 2005. 15 Dic 2005. Rox Medical, Inc.. Methods for arterio- ...

http://www.google.es/patents/US20050277967

No arteriovenous shunting occurs in these tumors. Angiograms clearly delineate the feeding and draining vessels; these findings ... Berenstein A, Lasjaunias P. Surgical Neuroangiography: Endovascular Treatment of Spine and Spinal Cord Lesions. New York, NY: ... One study reported on the use of intraoperative indocyanine green (ICG) videoangiography during surgical resection of spinal ... may be helpful for surgical planning and tumor resection. [5, 10] ...

https://emedicine.medscape.com/article/345314-overview

Arteriovenous Shunt, Surgical / adverse effects*. Catheterization, Swan-Ganz*. Device Removal*. Female. Foreign-Body Migration ... Previous Document: Shunt reduction with a fenestrated Amplatzer device.. Next Document: Retrograde left-ventricular hemodynamic ...

http://www.biomedsearch.com/nih/Migration-covered-stents-from-hemodialysis/20882665.html

Arteriovenous Surgical Shunt * Vascular Surgical Procedures Reviews. Showing 1 of 1. Five Stars ... Theyre trained to offer surgical treatment for tumors and abnormalities in these areas as well as respiratory and heart ...

https://www.vitals.com/doctors/Dr_Giancarlo_Bertozzi.html

Arteriovenous Shunt Creation. *Biopsy of Breast. *Breast Reconstruction. *Breast Surgical Procedure. *Cancer Surgery ... Removal of Arteriovenous Shunt for Renal Dialysis. *Removal of Reproductive Organs (Hysterectomy, Oophorectomy, Salpingectomy, ... The laparoscopic approach is frequently used to deal with surgical conditions. Other surgical conditions still require a ... Riverwalk Surgical Associates, Bakersfield, CA 3838 San Dimas St Ste B231 Bakersfield, CA 93301 Get Directions ...

https://www.dignityhealth.org/ourdoctors/1891791299-c%20vincent-phillips

A congenital aneurysm of the sinus of Valsalva is a rare cause of arteriovenous shunt. It is formed because of a weak ... Type A dissection is a surgical emergency because of the high risk of proximal extension, rupture, and sudden death. If a type ... This enlarges during childhood and usually ruptures in adulthood into the right ventricle, creating a volume shunt from the ...

https://www.ncbi.nlm.nih.gov/books/NBK2210/

Purpose Although involvement of the osseous component with an anterior condylar dural arteriovenous fistula (AC-DAVF) has been ... Berenstein A, Lasjaunias P, ter Brugge KG (2004) Dural arteriovenous shunts. In: Surgical neuroangiography. Springer, Berlin, ... Tirakotai W, Benes L, Kappus C, Sure U, Farhoud A, Bien S, Bertalanffy H (2007) Surgical management of dural arteriovenous ... Ernst R, Bulas R, Tomsick T, van Loveren H, Aziz KA (1999) Three cases of dural arteriovenous fistula of the anterior condylar ...

https://link.springer.com/article/10.1007%2Fs00234-018-1990-8

The present invention relates to an insertion system for medical devices and to surgical methods for the implantation of the ... Arterio-venous shunt graft US6685728B2 (en) * 2002-01-25. 2004-02-03. Stryker Endoscopy. Threaded suture anchor and method of ... Arterio-venous shunt graft US6638237B1 (en) * 1999-08-04. 2003-10-28. Percardia, Inc.. Left ventricular conduits and methods ... Surgical fastener US5500000A (en) * 1993-07-01. 1996-03-19. United States Surgical Corporation. Soft tissue repair system and ...

https://patents.google.com/patent/US20100049220A1/en

A graft, for example, an arterio-venous shunt graft, is provided, which in a first aspect of the subject invention, is formed ... Arteriovenous grafts and methods of implanting the same US4523920A (en) 1985-06-18. Surgical suction drain ... Arterio-venous shunt graft US11507797 Expired - Fee Related US7806848B2 (en) 2001-11-27. 2006-08-22. Arterio-venous shunt graft ... Implantable arteriovenous shunt device US7967769B2 (en) 2003-04-08. 2011-06-28. Rox Medical Inc.. Implantable arterio-venous ...

https://patents.google.com/patent/US20030100859

Included are arteriovenous graft, shunt, fistula, or intravenous cannulation. Should meet at least 1 of the following criteria: ... Preventing central venous catheter-related infection in a surgical intensive-care unit. Infect Control Hosp Epidemiol.1999;20 : ... The influence of the composition of the nursing staff on primary bloodstream infection rates in a surgical intensive care unit ... To reduce the rate of infection, hemodialysis catheters should be avoided in favor of arteriovenous fistulas and grafts. If ...

http://pediatrics.aappublications.org/node/40826.full.print

https://en.wikipedia.org/wiki/Anastomosis

Introduction and general comments regarding pediatric intracranial arteriovenous shunts. Surgical Neuroangiography 3. Clinical ... Drake CG: Cerebral arteriovenous malformations: considerations for and experience with surgical treatment in 166 cases. Clin ... Jaeger JRForbes RPDandy WE: Bilateral congenital cerebral arteriovenous communication aneurysm. Trans Am Neurol Assoc 63:173- ... Litvak JYahr MDRansohoff J: Aneurysms of the great vein of Galen and midline cerebral arteriovenous anomalies. J Neurosurg 17: ...

https://thejns.org/pediatrics/view/journals/j-neurosurg-pediatr/12/3/article-p293.xml

Surgical and medical procedures. Arteriovenous shunt operation. subjects affected / exposed 0 / 57 (0.00%) ...

https://www.clinicaltrialsregister.eu/ctr-search/trial/2014-002121-35/results

Diagnostic angiography subsequently performed showed no arteriovenous shunting. D, 3D rotational angiography performed in the ... C, Postgadolinium axial 3D T1-weighted MR image obtained at 6-month follow-up shows linear enhancement within the surgical ... Existing applications of 3DRA in neuroangiography range from assessing the anatomy of arteriovenous malformations, volume- ... A 12-year-old girl was referred from an outside institution 4 months after hemorrhage from a right frontal arteriovenous ...

http://www.ajnr.org/content/39/4/727

The Surgical Treatment of Cranial Dural Arteriovenous Fistulas. Seminars in Cerebrovascular Diseases and Stroke. 2004; 4(4):195 ... Endovascular Treatment of Dural Arteriovenous Shunts. Seminars in Cerebrovascular Diseases and Stroke. 2004; 4(4):176-194. ... Acute management of ruptured arteriovenous malformations and dural arteriovenous fistulas. Neurosurg Clin N Am. 2012 Jan; 23(1 ... Surgical Neurology. 2008; 70(2):198-203. * Adel JG, Bendok BR, Hage ZA, Naidech AM, Miller JW, Batjer HH. External carotid ...

https://www.mayo.edu/research/searchpublications/publications?authid=12108235

A surgical arteriovenous shunt was created in adult male Sprague-Dawley rats to induce HF. RVLM-C1 neurons were selectively ... HF was induced with the surgical creation of an arteriovenous anastomosis (volume overload HF) as described previously [5-7,18 ... Sham-operated rats underwent the same anesthesia and surgical procedures without implantation of a shunt. ... The abdominal cavity was opened first, to visualize the arteriovenous anastomosis (volume overload), and then to perform venous ...

https://portlandpress.com/clinsci/article/133/3/393/111056/Ablation-of-brainstem-C1-neurons-improves-cardiac

Spinal dural arteriovenous fistulas (dAVFs) are rare vascular abnormalities caused by arteriovenous shunting. They often form ... Definitive surgical management may be challenging in naive cases, but it is particularly challenging in recurrent cases and ... In this report, the authors describe the diagnosis and surgical management of a 29-year-old man who presented with a large ... The authors also reviewed operative reports to assess for the use of surgical adjuncts targeted toward PJK prevention, ...

https://thejns.org/search?f_0=author&q_0=Michael+M.+Safaee

Presence of arteriovenous (AV) shunt in the limb in question. *History of surgery disrupting lymphatics of the upper extremity ...

http://www.proceduresconsult.com/medical-procedures/arterial-line-placement-AN-014-procedure.aspx

What is arteriovenous shunt? Meaning of arteriovenous shunt medical term. What does arteriovenous shunt mean? ... Looking for online definition of arteriovenous shunt in the Medical Dictionary? arteriovenous shunt explanation free. ... arteriovenous shunt. Arteriovenous fistula Therapeutics The surgical joining of an artery and a vein under the skin to create a ... arteriovenous shunt. Also found in: Dictionary, Thesaurus, Encyclopedia.. Related to arteriovenous shunt: Arteriovenous ...

https://medical-dictionary.thefreedictionary.com/arteriovenous+shunt

... the tactics and techniques of combined treatment have been worked out adapting surgical and non-surgical methods. The most ... Belov S (1989) Surgical treatment of congenital predominantly arteriovenous shunting defects. In: Belov S, Loose DA, Weber J ( ... Mattassi R (1990) Surgical treatment of congenital arteriovenous defects. Int Angiol 9:196-202PubMedGoogle Scholar ... In arteriovenous malformations (AVM), the tactics and techniques of combined treatment have been worked out adapting surgical ...

https://rd.springer.com/chapter/10.1007/978-88-470-0569-3_24

... dural arteriovenous shunts) can include certain medications or surgery. A surgical procedure known as sinus wall reconstruction ... dural arteriovenous shunts), or conditions that cause increased pressure within the skull such as idiopathic intracranial ... Surgical treatment of tinnitus. Neuroimaging Clin N Am. 2016 May 26(2):279-88. doi: 10.1016/j.nic.2015.12.010. Epub 2016 Mar 10 ... Sinus wall reconstruction for sigmoid sinus diverticulum and dehiscence: a standardized surgical procedure for a range of ...

https://rarediseases.org/rare-diseases/tinnitus/

They are usually categorized into 4 types: spinal dural arteriovenous fistulas (DAVFs), intramedullary glomus malformations, extensive juvenile malformations, and perimedullary spinal cord arteriovenous fistulas, respectively. (ajnr.org)
Herein, the authors review the current concepts related to vein of Galen aneurysmal malformations and suggest a new classification system excluding mesodiencephalic plexiform intrinsic arteriovenous malformations from this group of malformations. (thejns.org)
Existing applications of 3DRA in neuroangiography range from assessing the anatomy of arteriovenous malformations, volume-rendered vessel reformats for aneurysm treatment, CT reconstruction for hemorrhage and multiplanar reformation, and MR imaging fusion for presurgical evaluation and guidance. (ajnr.org)
In arteriovenous malformations (AVM), the tactics and techniques of combined treatment have been worked out adapting surgical and non-surgical methods. (springer.com)
Allison DJ, Kennedy A (1989) Embolization techniques in arteriovenous malformations. (springer.com)
Loose DA (1989) The combined surgical therapy in congenital av-shunting malformations. (springer.com)
Sometimes, blood vessel malformations that involve abnormal connections between arteries and veins (arteriovenous malformations) develop in the membrane covering the brain (the dura). (banishtinnitus.net)
Pulmonary arteriovenous malformations (PAVM) are a rare disorder in the general population, with an estimated prevalence at autopsy of 3:15'000, although no population-based studies are available to determine its real incidence [1]. (smw.ch)
One of the factors implicated is the development of macroscopic pulmonary arteriovenous malformations (PAVM) seen in some of these patients. (bmj.com)
In this review we cover the classification and endovascular management of arteriovenous malformations (AVMs). (appliedradiology.com)
Arteriovenous malformations (AVMs) are abnormal shunts between arteries and veins that result from disturbances in angiogenesis. (appliedradiology.com)
Embolization: current tech niques of plugging vessels intravascularly are generally inadequate Arteriovenous malformations. (nippon-kan.org)
Common conditions necessitating the use of neurosurgical products include hydrocephalus, aneurysms, arteriovenous malformations (AVMs), and pituitary and intracranial tumors. (prnewswire.com)
This disorder has a high penetrance, and patients present with multiple telangiectasias and arteriovenous malformations/fistulae (AVM/AVFs) [2] . (cureus.com)
Arteriovenous malformations (AVMs) are defects of the brain's circulatory system that are generally believed to arise during embryonic or fetal development. (uclahealth.org)
Brain abscesses and ischaemic strokes complicate pulmonary arteriovenous malformations (PAVMs). (bmj.com)
Pulmonary arteriovenous malformations (PAVMs) are abnormal dilated vessels which provide a right-to-left (R-L) shunt between the pulmonary arterial and venous circulations. (bmj.com)

Results of repeated percutaneous interventions on failing arteriovenous fistulas and grafts and factors affecting outcomes. (umassmed.edu)
Human type I pancreatic elastase treatment of arteriovenous fistulas in patients with chronic kidney disease. (umassmed.edu)
Arteriovenous (AV) fistulas for hemodialysis access, constructed with the use of interposition grafts, are often complicated by intimal hyperplastic stenosis, mainly occurring at the venous anastomosis. (biomedsearch.com)
Hsu YH, Lee CW, Liu HM, Wang YH, Chen YF (2014) Endovascular treatment and computed imaging follow-up of 14 anterior condylar dural arteriovenous fistulas. (springer.com)
McDougall CG, Van Halbach V, Dowd CF et al (1997) Dural arteriovenous fistulas of the marginal sinus. (springer.com)
Spinal dural arteriovenous fistulas (dAVFs) are rare vascular abnormalities caused by arteriovenous shunting. (thejns.org)
A site should be free from pain, injury, surgical incisions, intravenous cannulas, central venous or arterial lines, areas with poor perfusion, arteriovenous fistulas or AV shunts. (ausmed.com.au)
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)
Spinal dural arteriovenous fistulas (SDAVF) are the most common type of spinal vascular malformation , accounting for ~70% of all such lesions. (radiopaedia.org)
This article specifically relates to spinal dural arteriovenous fistulas. (radiopaedia.org)
The topics of the project are: 1) recommendations on the use of prosthetic arteriovenous fistulas for vascular access in hemodialysis, 2) recommendations on the use of venous catheters for hemodialysis, 3) infections induced by a venous catheter for hemodialysis, and 4) how to create and maintain a vascular access for hemodialysis. (unicatt.it)
PURPOSE: To evaluate the usefulness of an approach through the radial artery distal to the arteriovenous anastomosis for salvaging nonmaturing radiocephalic arteriovenous fistulas. (springernature.com)
CONCLUSION: An approach through the radial artery distal to the arteriovenous anastomosis is an effective and safe alternative for the salvage of nonmaturing radiocephalic arteriovenous fistulas, even for occluded fistulas. (springernature.com)

Examples of pulmonary arteriovenous malformation endovascular vaso-occlusions with vascular coils, plugs and combined treatment. (smw.ch)
Embolisation attempt of a large pulmonary arteriovenous malformation (PAVM) with a feeding artery of 12 mm diameter with a 10/5 mm 10.035 Tornado ® coil. (smw.ch)
Subarachnoid hemorrhage due to flow-related dissection of the posterior inferior cerebellar artery associated with a distal arteriovenous malformation. (uzh.ch)
We are evaluating a 170 patient surgical series to determine factors that predict good post-operative outcomes in patients with Chiari I malformation that have undergone a decompressive operation. (jfkmc.org)
De novo formation of large arteriovenous shunting and a vascular nidus mimicking an arteriovenous malformation within an anaplastic oligodendroglioma: treatment with embolization and resection. (jfkmc.org)
Steineke, T.C. & Batzdorf, U. (2004) Factors that Affect Outcome Following Surgical Treatment of Chiari I Malformation. (jfkmc.org)
1991), Malik GM, Mahmood A, Mehta BA Dural arteriovenous malformation of the skull base with intraosseous vascular nidus. (upmc.com)
1994)]. We present a pediatric patient, with a life-threatening arteriovenous malformation (AVM) of the sphenoid sinus, clivus, and ventral skull base, who failed routine multimodality management of AVMs. (upmc.com)
ICG angiography is a useful adjunct for understanding angioarchitecture and drainage patterns in spinal arteriovenous malformation (AVM) surgery. (cureus.com)
What is an arteriovenous malformation? (uclahealth.org)

2 . The method of claim 1 wherein said end to side anastomosis is performed in an open surgical procedure. (google.es)
and it may be natural (such as the aforementioned examples) or artificial (such as a surgical anastomosis ). (wikipedia.org)
An example of surgical anastomosis occurs when a segment of intestine , blood vessel, or any other structure are connected together (anastomosed). (wikipedia.org)
Examples include intestinal anastomosis, Roux-en-Y anastomosis or ureteroureterostomy . (wikipedia.org)
Surgical anastamosis techniques include Linear Stapled Anastomosis, [3] Hand Sewn Anastomosis, [3] End-to-End Anastomosis (EEA). (wikipedia.org)
3. a surgical anastomosis. (thefreedictionary.com)
splenorenal shunt an anastomosis of the splenic vein and the left renal vein, created to lower portal hypertension following splenectomy. (thefreedictionary.com)
OBJECTIVE To evaluate the extent of intrapulmonary right to left shunting in children after bidirectional cavopulmonary anastomosis (BCPA). (bmj.com)
Not to be confused with surgical anastomosis, nor with arteriovenous fistula. (dermis.net)
We believe that the bidirectional cavopulmonary anastomosis operations may be performed with transient external shunt techniques. (unboundmedicine.com)
Based on the study presented here, bidirectional cavo-pulmonary anastomosis can be carried out by using different types of transient external shunt. (unboundmedicine.com)

Although involvement of the osseous component with an anterior condylar dural arteriovenous fistula (AC-DAVF) has been frequently described, osseous venous structures in which AC-DAVFs develop have not been fully elucidated. (springer.com)
Manabe S, Satoh K, Matsubara S, Satomi J, Hanaoka M, Nagahiro S (2008) Characteristics, diagnosis and treatment of hypoglossal canal dural arteriovenous fistula: report of nine cases. (springer.com)
Tanoue S, Goto K, Oota S (2005) Endovascular treatment for dural arteriovenous fistula of the anterior condylar vein with unusual venous drainage: report of two cases. (springer.com)
Ernst R, Bulas R, Tomsick T, van Loveren H, Aziz KA (1999) Three cases of dural arteriovenous fistula of the anterior condylar vein within the hypoglossal canal. (springer.com)
Kiyosue H, Tanoue S, Okahara M, Mori M, Mori H (2001) Ocular symptoms associated with a dural arteriovenous fistula involving the hypoglossal canal: selective transvenous coil embolization. (springer.com)
Choi JW, Kim BM, Kim DJI et al (2013) Hypoglossal canal dural arteriovenous fistula: incidence and the relationship between symptoms and drainage pattern. (springer.com)
Aoun RJN, Sattur MG, Krishna C, Bendok B . Microsurgical Resection of a Type 1 Spinal Dural Arteriovenous Fistula: A 3-Dimensional Operative Video. (mayo.edu)
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)
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)

Early venous shunting was identified by using TRSMRA in 6 cases. (ajnr.org)
The pathophysiology involves arteriovenous shunting of blood, causing venous hypertension and passive venous congestion, reduced intramedullary blood flow, and finally ischemia and cord dysfunction. (ajnr.org)
Although there have been reporting standards for dialysis access endovascular interventions and for central venous access placement, standards regarding surgical access placement and its revision are lacking. (nih.gov)
A graft, for example, an arterio-venous shunt graft, is provided, which in a first aspect of the subject invention, is formed with longitudinal ribs. (google.com)
This invention relates to implantable prostheses, and, more particularly, to arterio-venous (AV) shunt grafts for hemodialysis applications. (google.com)
To avoid repeated puncturing of blood vessels, a technique has been developed in the prior art, wherein a graft is implanted that acts as a shunt between an artery and a vein, such graft being aptly referred to as an arterio-venous (AV) shunt graft. (google.com)
A disadvantage of the shunt is dilution of the blood and a resultant drop in hematocrit, which necessitates transfusion of packed cells and perhaps a slowing of the rate of flow of ascitic fluid into the venous system. (thefreedictionary.com)
pulmonary shunt an anomaly in which blood moves from the venous circulation to the arterial circulation without participating in gas exchange, resulting in hypoxemia. (thefreedictionary.com)
On Doppler, one may observe arterial waveforms and high flows in venous structures which are indicative of vascular shunting. (appliedradiology.com)
However, if the polycythemia is secondary to hypoxia, as in venous-to-arterial shunts or compromised lung and oxygenation, patients can also appear cyanotic. (medscape.com)
Needed to the venous drainage, to judge the chance of surgical dr Diversified lifetime gamble of hemorrhage, more forward intervention (grades 1 to 5). (nippon-kan.org)
Furthermore, this study would have been more informative if aortoportography-that is, superior mesenteric and splenic angiography with venous phase imaging, had been performed in order to determine the pattern of portosystemic shunting before and after TIPS insertion. (bmj.com)
Venous anastomotic intimal hyperplasia (IH) observed in the arteriovenous shunt (AVS) has been associated with disturbed hemodynamics. (epfl.ch)
In group A (ten patients), the transient external shunt was constructed between superior vena cava and right atrium by uniting two standard venous cannulas with a Y-connector. (unboundmedicine.com)
In group B (ten patients), the external shunt was performed with a single short venous cannula constructed between superior vena cava and right atrium. (unboundmedicine.com)
In group C (ten patients), the external shunt was constructed between superior vena cava and left pulmonary artery by using a single short venous cannula. (unboundmedicine.com)

Treatment consists of either surgical ligation of the draining vein or selective embolization via an endovascular approach. (thejns.org)
Transcranial Doppler sonography with contrast indicated a right-to-left shunt, while on a follow-up CT scan lipiodol embolization was detected in both lungs. (biomedcentral.com)
The angiography did not detect any apparent high flow shunts inside the tumor, although small shunts might have gone undetected pre-embolization. (biomedcentral.com)
Aneurysms and AVMs may be treated using surgical clips or, increasingly, embolization products that may be deployed during endovascular procedures. (prnewswire.com)
Surgical excision is the treatment of choice with preoperative embolization of larger lesions. (jaocr.org)

see left-to-right shunt and right-to-left shunt . (thefreedictionary.com)
reversed shunt right-to-left shunt . (thefreedictionary.com)
right-to-left shunt diversion of blood from the right side of the heart to the left side or from the pulmonary to the systemic circulation through an anomalous opening such as septal defect or patent ductus arteriosus. (thefreedictionary.com)
INTERVENTIONS All patients underwent cardiac catheterisation to exclude angiographically demonstrable venovenous collaterals followed by pulmonary perfusion scanning using 99m technetium ( 99m Tc) labelled albumen microspheres to quantify the intrapulmonary right to left shunt. (bmj.com)
MAIN OUTCOME MEASURE Percentage of intrapulmonary right to left shunt. (bmj.com)

Spinal arteriovenous shunts usually require digital subtraction angiography (DSA) for evaluation. (ajnr.org)
Postoperative angiography revealed minimal residual shunting in the pharynx and cavernous sinus. (upmc.com)
it would have been helpful if they had performed angiography in at least some patients after the TIPS procedure to confirm that blood flow had been restored to the liver from all portal vein tributaries, as it cannot be assumed that normalisation of portal vein pressure will completely ablate all preformed portosystemic shunts. (bmj.com)
The 3-D shunt geometry was determined using biplane angiography. (epfl.ch)
Arteriovenous shunting may be seen on angiography. (jaocr.org)

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)
2. Documentation of intrapulmonary arteriovenous shunting by contrast-enhanced echocardiography or macroaggregated albumin lung perfusion scan. (medhelp.org)
The hepatopulmonary syndrome results from the formation of microscopic intrapulmonary arteriovenous dilations in patients with chronic liver disease. (coem.com)

The native arteriovenous fistula (AVF) is the preferred vascular access because of the lower thrombosis and infe. (bioportfolio.com)

A vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the capillary bed. (dermis.net)
A dialysis fistula or dialysis shunt is a surgical 'bypass' (shunt) between an artery and a vein. (hirslanden.ch)

Because of this limitation, once an arteriovenous shunt is suspected clinically and with conventional MR imaging, intra-arterial DSA is often required to confirm the diagnosis and localize the site. (ajnr.org)
The best hemodynamical condition and arterial O(2) levels were achieved with the shunt constructed between superior vena cava and left pulmonary artery. (unboundmedicine.com)

Historically, surgical resection has been considered the treatment of choice. (appliedradiology.com)
However, due to the significant morbidity and high rate of recurrence associated with surgical resection, endovascular therapy has emerged as a less invasive alternative with comparable efficacy. (appliedradiology.com)
Conclusion: We urge surgeons to reconsider placement of carmustine wafers in nations where the surgical resection cavity includes exposed large cerebral vasculature. (medworm.com)
5 cm, surgical resection is often recommended. (merckmanuals.com)
We report the utility of fluorescent indocyanine green (ICG) during the microsurgical resection of a giant perimedullary cervical arteriovenous fistula (GPMAVF) in a young man with hereditary hemorrhagic telangiectasia. (cureus.com)
Surgical resection of carotid-jugular arteriovenous fistula after multiple failed embolisation. (bioportfolio.com)

Prospective, Randomized, Concurrently-Controlled Study of a Stent Graft versus Balloon Angioplasty for Treatment of Arteriovenous Access Graft Stenosis: 2-Year Results of the RENOVA Study. (umassmed.edu)
Schanzer A, Ciaranello AL, Schanzer H. Brachial artery ligation with total graft excision is a safe and effective approach to prosthetic arteriovenous graft infections. (umassmed.edu)
In order to improve the surface properties of small caliber vascular grafts or other surgical implants, Forskolin (or a derivative thereof) which is a power cAMP stimulating agent, is applied to the thrombogenic surfaces of the graft/implant. (google.es)
before implanting the synthetic vascular graft in the patient, applying locally to the graft 7B-acetoxy-8, 13-epoxy-1a-6, 9a-trihydroxylabd-14-en-11-one (Forskolin) or a derivative thereof. (google.es)

Arteriovenous Shunt, Surgical" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (umassmed.edu)

1,2 The silicone rubber (Silastic) arteriovenous shunt has been utilized at the University of Wisconsin Hospitals in patients in need of dialysis for the past 18 months, with a low complication and failure rate. (jamanetwork.com)

Eleven patients with clinical presentation and/or MR findings suspicious for a spinal arteriovenous shunt were referred for TRSMRA. (ajnr.org)
Patients subsequently underwent spinal DSA to confirm the presence or absence of a shunt or were followed clinically until an alternative diagnosis was found. (ajnr.org)
All 6 were confirmed to have an AV shunt on subsequent spinal DSA. (ajnr.org)
Combining acceleration techniques to achieve high frame rate TRSMRA provides sufficient temporal and spatial resolution to identify, localize, and follow patients suspected of having a spinal arteriovenous shunt. (ajnr.org)
Spinal arteriovenous shunt is a lesion that can mimic neoplasm, demyelination, or infection on physical examination and imaging. (ajnr.org)
The authors performed a retrospective review of a prospectively maintained database by the senior author to assess clinical outcomes in patients undergoing surgical treatment of spinal dAVFs. (thejns.org)

Removal of infected arteriovenous grafts is morbid and many patients do not receive a new access within 1 year. (umassmed.edu)
To present the experience from a Brazilian Interventional Nephrology Center (INC) in the salvage of arteriovenous fistula (AVF) and grafts for hemodialysis . (bvsalud.org)

Conclusion: Surgical intervention has no significant benefit over conservative management on long-term mortality and should be limited to patients with large intracranial hematomas and intraventricular hematomas causing hydrocephalus. (medworm.com)
After surgery, flag p ostcraniotomy be keen on, in- Risk of impetuous haemorrhage after cluding knob of intracranial pressure and blood diagnosis of cerebral arteriovenous urgency, is warranted. (nippon-kan.org)
Intracranial shunts are often used to treat hydrocephalus. (prnewswire.com)

mesocaval shunt a portosystemic shunt between the superior mesenteric vein and the inferior vena cava to reduce portal hypertension. (thefreedictionary.com)
portacaval shunt a portosystemic shunt between the portal vein and the vena cava. (thefreedictionary.com)
portosystemic shunt a surgically created shunt that connects the portal and systemic circulations, such as a mesocaval, portacaval, or splenorenal shunt. (thefreedictionary.com)

Peritoneovenous (LeVeen) shunt for chronic ascites moves fluid from the peritoneal (abdominal) cavity into the superior vena cava. (thefreedictionary.com)
SCRIBNER, in 1960, reported the treatment of chronic uremia by intermittent hemodialysis through an external arteriovenous shunt. (jamanetwork.com)
A shunt rivet for implementation in the aorta and inferior vena cava to treat chronic obstructive pulmonary disease, and a method of treating chronic obstructive pulmonary disease. (freepatentsonline.com)
Data from rats with heart failure (chronic arteriovenous shunt) were compared to data obtained from rats subjected to sham surgical procedures. (elsevier.com)
In the case of chronic care, 78% of patients have an arteriovenous fistula. (bioportfolio.com)

In my role as a leader of the hospital's Cerebrovascular Surgical and Interventions Center, I see children with conditions affecting blood vessels in and around the brain and the spine. (childrenshospital.org)
Antibiotic prophylaxis prior to dental and surgical interventions has been suggested. (bmj.com)

I firmly believe that the risk of surgery should be less than the potential benefit before any surgical endeavor is undertaken. (dignityhealth.org)
After graduation, he remained at the university to complete an internship in small animal medicine and surgery followed by a surgical residency. (ucdavis.edu)
Dr. Culp is board-certified as a diplomate of the American College of Veterinary Surgeons, and he has pursued additional training in cancer surgery at the Colorado State University Animal Cancer Center, during which he completed a surgical oncology fellowship. (ucdavis.edu)
He is interested in many areas of soft tissue surgery, but his major focuses are surgical oncology and interventional radiology. (ucdavis.edu)
Patients should be informed of the risks of surgery and of the various surgical options, as discussed in Surgical Care. (medscape.com)
Technological advances in endoscopic surgery and image guidance are now allowing for purely endoscopic surgical treatment of previously unresectable lesions with acceptable morbidity. (upmc.com)
Substantive divergence between intraoperative and postoperative temperature measurements would be important because the current version of Surgical Care Improvement Project, a major quality-tracking measure, requires that the initial postoperative temperature be normothermic in patients having colorectal surgery. (asahq.org)

Thus, at a mean age of 6 months, 121 patients have undergone closure of aortopulmonary shunt, augmentation of central pulmonary arteries, and association of the superior vena cava with the branch pulmonary arteries (hemi-Fontan procedure). (meta.org)
Normal arteriovenous connection is depicted in the figure on top with arteries leading to capillaries then to veins. (uclahealth.org)

Pulse oximetry in the evaluation of the painful hand after arteriovenous fistula creation. (nih.gov)

Superior caval flow during positive pressure mechanical ventilation and spontaneous breathing was investigated by Doppler echocardiography in a neonate with a coexisting superior cavopulmonary shunt and an aortopulmonary shunt. (biomedsearch.com)
The purpose of this prospective study is the peri- and post-operative comparison of different transient external shunt methods used in bidirectional cavopulmonary shunt operations. (unboundmedicine.com)

The American Heart Association, in its guidelines, gives the same weak recommendation for all surgical methods (IIb). (aerzteblatt.de)

Surgical shunt allowing direct passage of blood from an artery to a vein. (umassmed.edu)
The shunt consists of a peritoneal tube, a one-way valve, and a tube leading to a large vein, usually the superior vena cava or the jugular vein. (thefreedictionary.com)
The difference in pressure, usually about 5 cm H 2 O, opens the shunt valve, allowing the flow of ascitic fluid into the large vein. (thefreedictionary.com)
On the bottom, an AVM is depicted with large sized shunts connecting the artery to the vein. (uclahealth.org)
In reality, in an AVM, hundreds of shunts connect the artery to the vein. (uclahealth.org)
Presence of an arteriovenous shunt - This shunt is basically a product from a surgical intervention that provides a vessel indicated to provide a pathway for blood exchange between an artery and vein. (coem.com)

Although our dialysis program is chiefly concerned with supporting patients prior to renal transplantation, an external arteriovenous shunt is also placed in all patients with acute renal failure in need of dialysis. (jamanetwork.com)

Dilated pulmonary vessels and thick vascular channels were seen in the vicinity of the right diaphragm suggestive of pulmonary arteriovenous shunt. (biomedcentral.com)
The glomus body is a neuromyoarterial apparatus which is a carefully controlled arteriovenous shunt between terminal vessels supplying a regulatory function in digital blood flow. (scielo.org.za)

jejunoileal shunt an intestinal bypass performed to control obesity. (thefreedictionary.com)

Type A dissection is a surgical emergency because of the high risk of proximal extension, rupture, and sudden death. (nih.gov)
The microsurgical approach involves laminectomy with intradural exposure of the perimedullary arteriovenous vascular network and dissection (cauterization and clipping of the point of fistula). (cureus.com)

Arteriovenous hemodialysis access (AV access) creation and maintenance are two of the most difficult issues associated with the management of patients on hemodialysis. (nih.gov)

Cranial dural arteriovenous shunts: selection of the ideal lesion for surgical occlusion according to the classification system. (uzh.ch)

Dilated vascular channels were detected inside the tumor on color Doppler sonography (Figure 1 A). However, no spectral Doppler analysis was performed to identify potential AV shunts. (biomedcentral.com)

However, endovascular treatment of paraclinoid aneurysms is not without procedural risks, is associated with higher rates of incomplete aneurysm occlusion and recurrence, and may not address optic nerve compression symptoms that surgical debulking can. (thejns.org)

A few pleural and pulmonary arteriovenous shunts and portopulmonary anastomoses may also be seen. (coem.com)

Repair of all hernias is a common surgical procedure. (dignityhealth.org)

These connections that replace the capillary are called shunts and a collection of shunts is called a nidus. (uclahealth.org)
The collection of shunts is called the nidus of the AVM. (uclahealth.org)

Compensatory hypertension due to aortic coarctation or arteriovenous shunting. (renalandurologynews.com)

A congenital aneurysm of the sinus of Valsalva is a rare cause of arteriovenous shunt. (nih.gov)
Belov S, Loose DA, Mattassi R et al (1989) Therapeutical strategy, surgical tactics and operative techniques in congenital vascular defects (multicentre study). (springer.com)
Belov S (1989) Surgical treatment of congenital predominantly arteriovenous shunting defects. (springer.com)
Mattassi R (1990) Surgical treatment of congenital arteriovenous defects. (springer.com)

In the 5 patients with a negative screening TRSMRA, DSA or clinical outcome confirmed the absence of an arteriovenous shunt in all of the cases. (ajnr.org)
Surgical outcome is related to the Shamblin classification of CBTs, which predicts tumor resectability and vascular morbidity. (jaocr.org)

However, differences in the all-cause and cause-specific mortality risk between catheter use and arteriovenous access use in young and elderly haemodialysis patients have not yet been investigated. (nih.gov)
Of the 1109 patients, 919 had an arteriovenous access and 190 had a catheter. (nih.gov)
The mortality rate was 76 per 1000 person-years in young patients with an arteriovenous access, 129 per 1000 person-years in young patients with a catheter, 222 per 1000 person-years in elderly patients with an arteriovenous access and 427 per 1000 person-years in elderly patients with a catheter. (nih.gov)
The adjusted HR was 3.15 (95% CI: 2.09-4.75) for elderly patients with a catheter as compared to young patients with an arteriovenous access. (nih.gov)
The adjusted HRs in elderly patients with a catheter as compared to elderly patients with an arteriovenous access were 1.54 (95% CI: 1.13-2.12) for all-cause mortality, 1.60 (95%: CI 0.62-4.19) for infection-related mortality and 1.67 (95% CI: 1.04-2.68) for cardiovascular mortality. (nih.gov)
Especially, elderly haemodialysis patients with a catheter have an increased all-cause, infection-related and cardiovascular mortality risk as compared to patients with an arteriovenous access. (nih.gov)

Fortunately, the risk for most surgical procedures is very low. (dignityhealth.org)
All the procedures were performed by the authors, individually or in combination, using the same surgical technique as outlined. (scielo.org.za)
7 In 1955, the first major review of the anesthetic implications of SCD acknowledged the high incidence of serious and potentially fatal exacerbations of the disease after surgical procedures. (asahq.org)

Between years 1997 and 2000, 30 patients have undergone bidirectional cavo-pulmonary shunt operation by using three different types of external shunt. (unboundmedicine.com)

Anatomy10

Organisms2

Diseases15

Chemicals and Drugs3

Analytical, Diagnostic and Therapeutic Techniques and Equipment12

Phenomena and Processes6

Disciplines and Occupations2

Technology, Industry, Agriculture1

Information Science1

Health Care1

Sites of stenosis in AV fistulae for haemodialysis access. (1/955)

Association of plasma fibrinogen concentration with vascular access failure in hemodialysis patients. (2/955)

Right atrial bypass grafting for central venous obstruction associated with dialysis access: another treatment option. (3/955)

Volume flow measurement in hemodialysis shunts using time-domain correlation. (4/955)

Prospective randomised trial of distal arteriovenous fistula as an adjunct to femoro-infrapopliteal PTFE bypass. (5/955)

Homocyst(e)ine and vascular access complications in haemodialysis patients: insights into a complex metabolic relationship. (6/955)

Effects of arteriovenous fistulas on cardiac oxygen supply and demand. (7/955)

Differential regulation of IGF-I, its receptor and GH receptor mRNAs in the right ventricle and caval vein in volume-loaded genetically hypertensive and normotensive rats. (8/955)

Arteriovenous Shunt, Surgical

Arteriovenous Fistula

Cranial Sinuses

Central Nervous System Vascular Malformations

Arteriovenous Malformations

Cerebral Veins

Arteriovenous Anastomosis

Intracranial Arteriovenous Malformations

Fluorocarbon Polymers

Bleeding Time

Dura Mater

Phenindione

Embolization, Therapeutic

Ventriculoperitoneal Shunt

Thrombosis

Cerebrospinal Fluid Shunts

Skin Temperature

Hepatic Artery

Cerebral Angiography

Jugular Veins

Papio

Portasystemic Shunt, Surgical

Regional Blood Flow

Angiography

Portacaval Shunt, Surgical

Peritoneovenous Shunt

Platelet Aggregation

Dogs

Hydrocephalus

Hypertension, Portal

Esophageal and Gastric Varices

Hepatic Encephalopathy

Heart Septal Defects, Atrial

Splenic Vein

Portal System

Portal Vein

Ascites

Heart Septal Defects

Gastrointestinal Hemorrhage

Hydrocephalus, Normal Pressure

Renal Veins

Pulmonary Circulation

Foramen Ovale, Patent

Heart Bypass, Right

General Surgery

Cellular Phone

Specialties, Surgical

Surgery Department, Hospital

Surgical Procedures, Operative

Cyclization

Aldehydes

Sites of stenosis in AV fistulae for haemodialysis access. (1/955)

Association of plasma fibrinogen concentration with vascular access failure in hemodialysis patients. (2/955)

Right atrial bypass grafting for central venous obstruction associated with dialysis access: another treatment option. (3/955)

Volume flow measurement in hemodialysis shunts using time-domain correlation. (4/955)

Prospective randomised trial of distal arteriovenous fistula as an adjunct to femoro-infrapopliteal PTFE bypass. (5/955)

Homocyst(e)ine and vascular access complications in haemodialysis patients: insights into a complex metabolic relationship. (6/955)

Effects of arteriovenous fistulas on cardiac oxygen supply and demand. (7/955)

Differential regulation of IGF-I, its receptor and GH receptor mRNAs in the right ventricle and caval vein in volume-loaded genetically hypertensive and normotensive rats. (8/955)

Correlation Between Preoperative Vein Distensibility With Radiocephalic Arteriovenous Fistula Maturation in Patients With End...

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Analysis of arteriovenous fistula failure in hemodialysis patients. | Abstract

Handgrip Exercise for Arteriovenous Fistula Maturation - Full Text View - ClinicalTrials.gov

Assessment of brachial artery mechanics using velocity vector imaging does not predict arteriovenous fistula failure; A...

Barriers to timely arteriovenous fistula creation: A study of providers and patients<...

A Comparison of Two Surgical Techniques for the Second Stage of Brachiobasilic Arteriovenous Fistula Creation

Access Creation for Hemodialysis: Association With Structural Changes of the Heart - Full Text View - ClinicalTrials.gov

Timing of preemptive vascular access placement: do we understand the natural history of advanced CKD?: an observational study |...

AID 698773 - Antithrombotic activity in Sprague-Dawley rat arteriovenous shunt model assessed as reduction of thrombus dry...

Effects of cardiovascular medications on primary patency of hemodialysis arteriovenous fistula<...

Clinical Trial End Points for Hemodialysis Vascular Access | American Society of Nephrology

Acoustic and Ultrasonografic Measurements in Newly Performed Hemodialysis Arteriovenous Fistulas - Aalborg Universitets...

Immediate access arteriovenous grafts versus tunnelled central venous catheters: study protocol for a randomised controlled...

RenalWEB Outcomes - Functioning Vascular Access

Vascular access conversion and patient outcome after hemodialysis initiation with a nonfunctional arteriovenous access: a...

How long do you need to wait before you work out after av fistula placement - Answers on HealthTap

Temporal Risk Profile for Infectious and Noninfectious Complications of Hemodialysis Access | American Society of Nephrology

Flow Forward secures patents for novel device to improve vascular access in hemodialysis patients - Medical Devices Business...

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