A five-year-old girl patient was admitted with cyanosis and dyspnea, which started from birth. She had small telangiectatic lesions on her face and cerebral arteriovenous malformation, but no family history of hereditary hemorrhagic telangiectasia. Contrast echocardiography and pulmonary angiography demonstrated diffuse pulmonary arteriovenous fistulas. The patient was diagnosed as polysplenia syndrome characterized with left atrial isomerism, interrupted inferior vena cava, azygous continuation to the superior vena cava, and hepatic veins draining to the right atrium. In contrast to the other polysplenia syndrome cases, in this patient, pulmonary arteriovenous fistulas were not associated with cavopulmonary anastomoses or liver disease.

Looking for online definition of arteriovenous fistula in the Medical Dictionary? arteriovenous fistula explanation free. What is arteriovenous fistula? Meaning of arteriovenous fistula medical term. What does arteriovenous fistula mean?

Spinal arteriovenous malformations are rare and still under-diagnosed entities. We present a case of a 59 year old man presented with paraparesis, lumbal MR imaging revealed high signal intensity within the spinal cord without contrast enhancement and flow voids along the dorsal surfaces of the cord at T6 to T11 level. Spinal angiography shows dural arteriovenous fistula at the level of T7 on the right side. The neurological and radiological findings completely resolved after endovascular treatment. The neurological symptoms due to venous congestion in the spinal dural arteriovenous fistula may be resolved if it is treated early and properly. Endovascular embolization is a safe and efficient way to treat. ...

BACKGROUND: Dural arteriovenous fistulas are intracranial vascular malformations, fed by dural ar...teries and draining venous sinuses or meningeal veins. Clinical course varies widely and ranges from benign with spontaneous remission to fatal, due to cerebral hemorrhage. In a 10-year single institution experience, clinical presentation of dural arteriovenous fistulas, and in particular headache and angiographic features, as well as long-term outcome were analyzed. METHODS: Data of 42 intracranial dural arteriovenous fistulas of 40 patients concerning demographic characteristics, medical history and risk factors, clinical presentation and headache features, location and neuroimaging findings, as well as treatment and outcome, were collected. Furthermore, we used the modified-Rankin Scale to assess the long-term outcome, by telephone contact with patients and/or their relatives. RESULTS: Patients aged between 25 and 89 years (mean age 55.8 ± 15.5). According to different clinical presentation ...

Putie Hapsari, Teguh Marfen Djajakusumah, Zacky Fauzie, Muhammad Faiz Ulurrosyad. Introduction: Patients with end stage renal disease require hemodialysis. Radiocephalic arteriovenous fistula is the main choice of vascular access in patients who undergo hemodialysis procedure. Physiological vein distensibility is an important aspect in forming a mature arteriovenous fistula. This study aims to analyze the correlation between preoperative distensibility and arteriovenous fistula maturation.. Method: Data are collected from end stage renal disease patients in Hasan Sadikin Hospital and RA Habibie Hospitals that will go through radiocephalic arteriovenous fistula procedure during the period of October 2018 to February 2019. Vein distension procedure is performed before the operation and maturation is evaluated four to six weeks after the operation. The comparison of preoperative venous distensibility in two different groups of arteriovenous fistula maturation category is analyzed using chi square ...

Background and aim 9 patients with 10 arteriovenous fistulas were treated with Onyx at our institution over a period of 19 months 4 direct and indirect carotid-cavernous fistulas (CCFs) and 6 dural arteriovenous fistula (DAVFs). Complete occlusion was achieved with no recurrences or permanent complications in our small series. We report hemodynamic instability, including severe bradycardia and asystole, during embolization of DAVF and CCF with Onyx in several patients. These changes were reversible with interruption of Onyx injection and administration of atropine. No recurrence of symptoms after atropine administration was noted as Onyx embolization continued during the same session or during postprocedural 24 h monitoring. No adverse clinical consequences were noted.. Results Bradycardia was observed in four cases, with a brief asystole in two of these patients during transarterial and transvenous Onyx delivery at cavernous sinus and orbital levels. Based on our observation, hemodynamic ...

Evolution after treatment. The clinical response was favorable, with gradual improvement of motor deficit, regaining the ability to walk soon after hospital discharge. Two months later, the patient got significant improvement. The patient continued with rehabilitation and he had an almost complete recovery. One year after treatment, control arteriography was performed showing persistent occlusion of the DAVF.. Discussion. It is believed that spinal DAVFs (SDAVFs) are an acquired pathology, although its exact etiology is unknown. Arteriovenous communication occurs between a dural branch of the radicular artery, with the nest of vessels located in the dura near the radicular exit, and a vein, which drains intradurally into the venous perimedullary plexus.2,3 Dural arteriovenous fistulas (DAVFs) at the craniocervical junction are uncommon but they produce clinical important abnormalities. These lesions have two main forms of clinical presentation; acute subarachnoid hemorrhage (SAH) and ...

TY - JOUR. T1 - Intra-cranial dural arteriovenous fistula. T2 - Classification and treatment. AU - Sugiu, Kenji. AU - Hiramatsu, Masafumi. AU - Tokunaga, Koji. AU - Hishikawa, Tomohito. AU - Ohkuma, Yu. AU - Haruma, Jun. AU - Shimizu, Tomohisa. AU - Date, Isao. N1 - Publisher Copyright: © 2013 Japanese Congress of Neurological Surgeons. All rights reserved.. PY - 2013. Y1 - 2013. N2 - Intracranial dural arteriovenous fistulas (dAVFs) are pathologic dural-based shunts and distinguished from parenchymal AVM by the presence of a dural arterial supply and the absence of a parenchymal nidus. Their symptoms and prognosis are strongly related to the pattern of their venous drainage system. The presence of cortical venous reflux (CVR) is an aggressive feature indicating that there is a high risk of cerebral bleeding or progressive neurological deficits. Endovascular treatment has become the mainstream dAVF therapy. In general, trans-venous coil embolization is adapted to sinusal type dAVFs (i.e. ...

PICTURES IN DIGESTIVE PATHOLOGY. Colour-Doppler features of hepatic involvement in Rendu-Osler-Weber disease. Papel de la ecografia Doppler-color en la enfermedad de Rendu-Osler-Weber con afectación hepática. M. Carmen Garre-Sánchez, Francisco Javier Álvarez-Higueras, María Muñoz-Tornero, Akiko Ono-Ono, Manuel Miras-López, José Antonio Pons-Miñano and Luis Fernando Carballo-Álvarez. Department of Digestive Diseases. Hospital Universitario Virgen de la Arrixaca. Murcia, Spain. Case report. A 39-year-old woman with a past history of Rendu-Osler-Weber disease of 16 years was referred to our unit to evaluate hepatic involvement. Previous pulmonary arteriovenous malformations were treated with embolization. It is known that recurrence of pulmonary arteriovenous malformations (VMs) requires a new treatment modality. On physical examination no skin lesions were found. Laboratory parameters were normal. Ultrasound imaging findings were: Dilation of he patic artery (diameter 12 mm), tortuous ...

Results Nine consecutive patients (six men, three women, mean age 55.3±19.8 years) with 10 SVMs (spinal dural arteriovenous fistulas n=3, spinal epidural arteriovenous fistulas n=2, spinal pial arteriovenous fistulas n=2, and spinal arteriovenous malformations n=2; one patient had two synchronous pial fistulas) had spinal DSA, including 4D-DSA acquisition. Inter-rater agreement was good and moderate for the venous drainage pattern and the SVM subtype, respectively. In 9 of 10 cases, the quality of the acquisition was graded as good. Satisfactory concordance between 4D-DSA and the selective microcatheterization was observed in 90% of cases for the location of the shunt point. ...

Guest Editors Rafael J. Tamargo and Judy Huang have focused on "e;Cranial Arteriovenous Malformations (AVMs) and Dural Arteriovenous Fistulas (DAVFs) in

Arteriovenous fistulas are another medical hardship of the middle meningeal artery. Physically, the middle meningeal artery runs along the side of the paired veins, and a stressful tear in the cranium wall may additionally result in a stressful this. The incidence of annoying center meningeal arteriovenous Fistula is extremely high, however, clinical headaches do often seen.. For this purpose, it is believed that many disturbing AFVs resolves spontaneously. Cases of longstanding its, however, have predisposed sufferers to headaches starting from venous congestion to intracranial hemorrhage ...

Looking for online definition of Arteriovenous fistulae in the Medical Dictionary? Arteriovenous fistulae explanation free. What is Arteriovenous fistulae? Meaning of Arteriovenous fistulae medical term. What does Arteriovenous fistulae mean?

Dural arteriovenous fistula, a rare cause of rapidly progressive dementia in a patient with bilateral thalamic lesions: a case report

TY - JOUR. T1 - Assessment of brachial artery mechanics using velocity vector imaging does not predict arteriovenous fistula failure; A feasibility study. AU - MacDonald, Conor James. AU - Ross, Rose. AU - Houston, John Graeme. PY - 2020/4/10. Y1 - 2020/4/10. N2 - Strain measurements by US have been suggested as a method of assessing arterial elasticity prior to arterio venous fistula creation. This pilot study sought to develop an imaging protocol to measure strain in the brachial artery via velocity vector imaging (VVI) and determine if differences in strain could be observed between a healthy group and a group with end-stage renal disease (ESRD), and if VVI measurements were associated with arterio-venous fistula malfunction. 40 healthy volunteers and 33 patients with ESRD were included in this study. All participants underwent US assessment of brachial artery strain via VVI. Peak velocity, strain, strain-rate and velocity were assessed. Patients with and without AVF failure at 3-months were ...

Dural arteriovenous fistulas (DAVFs) are abnormal connections between arteries and veins within the covering of the brain the dura....

TY - JOUR. T1 - Dural arteriovenous fistula. T2 - A clinical model of thalamic dementia?: Response. AU - Zipfel, Gregory J.. PY - 2017/3. Y1 - 2017/3. UR - http://www.scopus.com/inward/record.url?scp=85020027543&partnerID=8YFLogxK. U2 - 10.3171/2016.7.JNS161826. DO - 10.3171/2016.7.JNS161826. M3 - Letter. C2 - 28009241. AN - SCOPUS:85020027543. VL - 126. SP - 1022. JO - Journal of Neurosurgery. JF - Journal of Neurosurgery. SN - 0022-3085. IS - 3. ER - ...

TY - JOUR. T1 - Barriers to timely arteriovenous fistula creation: A study of providers and patients. AU - Lopez-Vargas, Pamela A.. AU - Craig, Jonathan C.. AU - Gallagher, Martin P.. AU - Walker, Rowan G.. AU - Snelling, Paul C.. AU - Pedagogos, Eugenie. AU - Gray, Nicholas A.. AU - Divi, Murthy D.. AU - Gillies, Allistair H.. AU - Suranyi, Michael G.. AU - Thein, Hla AU - McDonald, Stephen Peter. AU - Russell, Christine AU - Polkinghorne, Kevan Roy. PY - 2011/6. Y1 - 2011/6. N2 - Background: Current clinical practice guidelines recommend a native arteriovenous fistula (AVF) as the vascular access of first choice. Despite this, most patients in western countries start hemodialysis therapy using a catheter. Little is known regarding specific physician and system characteristics that may be responsible for delays in permanent access creation. Study Design: Multicenter cohort study using mixed methods; qualitative and quantitative analysis. Setting & Participants: 9 nephrology centers in Australia ...

Telangiectasia hemorrágica hereditária - Wikipédia, a ....A telangiectasia hemorrágica hereditária (ou Síndrome de Rendu-Osler-Weber) é uma doença autossómica dominante. [1] Pensa-se serem dois os genes envolvidos: ENG ...--Síndrome de Osler-Weber-Rendu - pt.healthline.com.Osler-Weber-Rendu syndrome (OWR) is also known as hereditary hemorrhagic telangiectasia (HHT). It is a genetic blood vessel disorder that often leads to excessive ...--Rendu-Osler-Weber Disease: clinical and surgical treatment.SUMMARY. Hereditary Haemorrhagic Telangiectasia (Rendu-Osler-Weber disease) is a rare disease with and incidence of 1-2/100000, affecting blood vessels of the skin ...--Rendu-Osler-Weber Syndrome: case report and literature review.RESUMO. A telangiectasia Hemorrágica Hereditária ou Síndrome de Rendu-Osler-Weber é uma rara displasia fibrovascular que torna a parede vascular vulnerável a ...--Radiologia Brasileira - Síndrome de Rendu-Osler-Weber: o ....INTRODUÇÃO A síndrome de ...

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A case of acquired arteriovenous fistula with multiple aneurysmal sacs of the left fifth finger has been presented in an adult, resulting from a human bite in childhood. The digit, previously normal, showed characteristic physical chances of A-V fistula following the trauma, including increased growth, venous distension, increased local temperature and more rapid growth of the nail. In addition, there were occasional episodes of transient subungual spurting of arterialized blood over a 15-year period. Surgical excision of aneurysmal sacs and ligation of visible communications on two separate occasions resulted in the disappearance of symptoms, enabling the patient to resume her vocation as a typist ...

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The potential for functional ambulation in patients with SDAVF is related to the time of intervention. This finding emphasizes the important of early diagnosis and early intervention in SDAVF.

The arteriovenous fistula is considered to be the gold standard form of access for haemodialysis patients, however only 37% of haemodialysis patients have this form of access. A possible explanation for this could be the high fistula failure rate due to the lack of maturation. Therefore interventions aimed at enhancing fistula maturation are warranted. One such intervention could be forearm exercise, however this recommendation is not evidence based. Therefore, the purpose of this study is to investigate whether a program of post operative progressive hand grip exercise can improve fistula maturation ...

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TY - JOUR. T1 - Pre-operative Patient Specific Flow Predictions to Improve Haemodialysis Arteriovenous Fistula Maturation (Shunt Simulation Study). T2 - A Randomised Controlled Trial. AU - Zonnebeld, Niek. AU - Tordoir, Jan H. M.. AU - van Loon, Magda M.. AU - de Smet, Andre A. E. A.. AU - Huisman, Laurens C.. AU - Cuypers, Philippe W. M.. AU - Schlosser, Felix J.. AU - Lemson, Susan. AU - Heinen, Stefan G. H.. AU - Bouwman, Lee H.. AU - Toorop, Raechel J.. AU - Huberts, Wouter. AU - Delhaas, Tammo. AU - Shunt Simulation Study Group. PY - 2020/7. Y1 - 2020/7. KW - Arteriouvenous fistula. KW - Computational modeling. KW - Personalized medicine. KW - Maturation. KW - Failure to mature. KW - Hemodialysis. KW - CLINICAL-OUTCOMES. KW - VASCULAR ACCESS. KW - PATENCY. KW - ASSOCIATION. KW - FAILURE. KW - MODEL. U2 - 10.1016/j.ejvs.2020.03.005. DO - 10.1016/j.ejvs.2020.03.005. M3 - Article. C2 - 32340878. VL - 60. SP - 98. EP - 106. JO - European Journal of Vascular and Endovascular Surgery. JF - ...

Dedy Pratama, Richard Yehuda Limen, Akhmadu Muradi. Introduction: Hemodialysis is an essential treatment in patients with stage 5 chronic kidney disease (CKD) or End-Stage Renal Disease (ESRD). The maturity of arteriovenous fistulas determines the success of hemodialysis. FAV maturity depends on preoperative preparation. The study aims to examine the preoperative and intraoperative peak systolic velocity (PSV) of the radial artery as a predictor of the successful maturation of the radiocephalic FAV. Method: This study used an analytic cross-sectional design to obtain the relationship of FAV maturation with preoperative and intraoperative PSV. Subjects were those who will undergo radiocephalic FAV surgery with preoperative ultrasound mapping. Shortly after anastomosis, PSV was measured. After 6 weeks, FAV was assessed for its maturity. Results: As many as 71 patients were undergone radiocephalic FAV surgery and followed for six weeks. The mean preoperative PSV of mature fistula was significantly ...

The purpose of this study is to determine if PRT-201 when applied to a limited segment of your blood vessel (about 2 inches) immediately after surgery to create an arteriovenous fistula is safe and improves the patency of your fistula. PRT-201 is a protein that has been shown to help keep vessels open (patent) when applied to the outside surface of the blood vessels (arteries and veins) in AVF patients in a previous study ...

Two-stage transposed brachiobasilic arteriovenous fistula is a common procedure after brachiobasilic fistula (BBF) creation. Different techniques can be used for basilic vein transposition but few comparative literature reports are available. The aim of our study was to compare two different techniques for basilic vein transposition. The first maintains the BBF anastomosis and the basilic vein is placed in a subcutaneous pocket (BBAVF). The second transects the basilic vein at the BBF anastomosis and tunnels it superficially, with a new BBF in the brachial artery (BBAVFTn). From 2009 to 2014, all patients who underwent basilic vein superficialization were treated by one of the two techniques, recorded in a dedicated database and retrospectively reviewed. The surgeon chose the technique on the basis of personal preference. The two techniques were compared in terms of perioperative complications, length of hospital stay, time of cannulation, ease of cannulation, and long-term patency. Eighty ...

The authors reported an extremely rare case of bilateral spontaneous vertebro-vertebral arteriovenous fistulas (VVAVFs) associated with fibromuscular dysplasia (FMD). A 53-year-old hypertensive woman has been placed on antiplatelet drug following diagnosis of supratentorial ischemic stroke for 2 years. Few months before hospitalization, she developed bilateral audible bruits and progressive spastic quadriparesis.

Dr. Chandra is board certified in both general and vascular surgery. She is a clinical associate professor of surgery in the Division of Vascular Surgery at Stanford University Medical Center. She also serves as the co-medical director of the Stanford Advanced Wound Care Center and the program director of the Vascular Surgery Fellowship and Vascular Surgery Residency Programs at the Stanford University School of Medicine.. Alucent is currently developing its Natural Vascular Scaffolding (Alucent NVS) Vessel Restoration System with Photoactivated Linking for the treatment of peripheral artery disease (PAD) of the lower extremities. The company announced today it will also seek to adapt the technology for another use, the maturation and preservation of arteriovenous fistula (AVF) for hemodialysis (HD).. The prevalence of end-stage renal disease continues to rise, and there is a growing need for HD. The National Kidney Foundation Kidney Disease Outcomes Quality Initiative (NKF-KDOQI) guidelines and ...

Objective: To investigate the reason of autogenous arteriovenous fistula failure by analyzing the clinical data of 32 hemodialysis patients in the Dep..

TY - JOUR. T1 - Effects of cardiovascular medications on primary patency of hemodialysis arteriovenous fistula. AU - Chang, Te I.. AU - Chen, Cheng Hsien. AU - Hsieh, Hui Ling. AU - Chen, Chun You. AU - Hsu, Shih Chang. AU - Cheng, Ho Shun. AU - Huang, Wen Cheng. AU - Sue, Yuh Mou. AU - Hsu, Yung Ho. AU - Lin, Feng Yen. AU - Shih, Chun Ming. AU - Lin, Shing Jong. AU - Huang, Po Hsun. AU - Liu, Chung Te. N1 - Funding Information: This work was supported, in part, by the research grants from the Wan Fang Hospital, Taipei Medical University (105MU-WFH-10), the Ministry of Science and Technology of Taiwan (MOST 104-2314-B-075-047); the Ministry of Science and Technology of Taiwan (MOST 106-2314-B-350-001-MY3); the Novel Bioengineering and Technological Approaches to Solve Two Major Health Problems in Taiwan program, sponsored by the Taiwan Ministry of Science and Technology Academic Excellence Program (MOST 106-2633-B-009-001); the Ministry of Health and Welfare (MOHW106-TDU-B-211-113001); Taipei ...

Since hemodynamic factors have been implicated in the localization and pathogenesis of atherosclerosis, the effect of hemodynamic stress on endothelium was investigated. The endothelium of the inferior vena cava of 24 rabbits with aortocaval fistulas was stained in situ and examined by the Hautchen technique at postoperative intervals ranging from 1 to 50 weeks. Cell counts revealed that, in the anastomosed vein of the fistula, an initially high frequency of abnormal cells decreased 3-12 weeks postoperatively but rose again within 20-50 weeks to levels significantly higher than those in either normal venous endothelium or sham-operated veins. An originally high mitotic index at 1-2 weeks decreased with time but still remained significantly larger than that observed in sham-operated rabbits. In most rabbits with arteriovenous shunts, a small area of the inferior vena cava near the fistula was devoid of endothelium, covered with a thin deposit of mural thrombi, and considered to be a jet lesion. ...

TY - CONF. T1 - Acoustic and Ultrasonografic Measurements in Newly Performed Hemodialysis Arteriovenous Fistulas. AU - Meyer-Hofmann, Helmut. AU - Schmidt, Samuel. AU - Pedersen, Birgitte Bang. AU - Christensen, Jeppe Hagstrup. N1 - Conference code: 61. PY - 2015/6. Y1 - 2015/6. M3 - Poster. Y2 - 24 June 2015 through 27 June 2015. ER - ...

Can a pulmonary AV fistula be visualized on a coronary CTA angiography study? My cardiologist stated that a loud murmur was likely a pulmonary AV fistula. I had a coronary CTA angiography, which reve...

HealthTap: Doctor answers on Symptoms, Diagnosis, Treatment, and More: Dr. Pak on ligation av fistula: Countless studies and decades of research have shown a clear advantage for patients who undergo hemodialysis through an av fistula. The second best is an av graft and all catheter-based modalities for hemodialysis are a distant third.

Background To review outcomes of open and endovascular repair of aortocaval fistulas (ACFs) in the setting of abdominal aortic aneurysms (AAAs). 41 cases (61%). The rate of complication and the death in open repair were 36% and 12% respectively (= 0.327 and = 0.910 respectively) compared with endovascular. Mean follow-up was 7.7 months for the endovascular group and 8.5 months in the open group. Conclusions Previous demonstrations of high morbidity and mortality with open repair of ACF in the setting of AAA have motivated endovascular approaches. However endoleaks are a significant problem and were present in 50% of ACF cases. The continued presence of an endoleak in the SMO setting of an ACF may result in persistence of the ACF unlikely thrombosis of the endoleak and continued sac enlargement. Endovascular repair presents theoretical benefit yet is not associated with a reduced rate of complication or death versus open repair in this contemporary review. Introduction Aortocaval fistulas (ACFs) ...

CT Abdomen with contrast. A: Computed tomography (CT) during hepatic artery phase reveals contrast in aorta and right anterior portal vein (arrow). B: Maximum intensity projection also during hepatic artery phase shows hepatic artery (arrowhead) and right portal vein branches (arrow). (Source: Gallego C, Velasco M, Marcuello P, Tejedor D, De Campo L, Friera A. Congenital and acquired anomalies of the portal venous system. RadioGraphics 2002;22:141-159, with permission from the Radiological Society ...

Continuing resourceAnalytics: Show analyticsPublication: 2550 [2007]ISSN: 0125-152X.Other title: ปัจจัยที่มีความสัมพันธ์กับอาการรุนแรงในโรค cranial dural arteriovenous fistula.Subject(s): Central nervous system vascular malformations ...

Diagnostic procedure of choice: Angiography is the most important DAVF diagnosis tool. This study shows the connection, generally from the extracranial circulation, with venous sinuses and/or subarachnoid veins. Intracranial branches might also be involved, although less frequently. It is essential to rule out the presence of cortical venous reflux and intracranial varices, which correlate with the risk of clinical manifestation. ...

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VEGF pathway targeting: Potential targeting of the vascular endothelial growth factor (VEGF) pathway might be explored in the future. ...

BACKGROUND: Chronic pain due to spinal dural arteriovenous fistulae (SDAVF) during follow-up is a serious issue because it can affect patients quality of life. The severity of posttreatment chronic leg pain in patients with SDAVF is unclear. OBJECTIVE: To investigate the prevalence, severity, and characteristics of chronic leg pain in patients with SDAVF and to…

Infections are a common complication among patients on chronic haemodialysis. Haemodialysis patients with a tunnelled dialysis line, or PermCath, have a 2-3 fold increased risk of hospitilisation for infection compared to those with an arterio-venous fistula or graft (reference). For this reason, we strive to have AV fistulas created for as many patients as possible, with the Renal Association guidelines recommended that 60% of patients have a mature AV fistula ready for use by the time they commence dialysis (reference - Renal Association). Infections associated with tunneled dialysis catheters can be fatal. The most common causative pathogens are Gram-positive bacteria, with Staphylococcus aureus and coagulase-negative staphylococci accounting for the majority of infections.. Please click here for more information on the investigation and management for suspected line infections.. ...

HealthTap: Doctor answers on Symptoms, Diagnosis, Treatment, and More: Dr. Korona on how long do you need to wait before you work out after av fistula placement: Absolutely up to the surgeon who placed the fistula.

To access a long term haemodialysis, and the best means to accelerate the blood stream is by AV Fistula. Sakra World Hospital has Best Nephrologists in Bangalore for any kidney related issues who gives you the best treatment post surgery too

Carotid-Cavernous Sinus Fistula; Fistula, Carotid Artery-Cavernous Sinus; Traumatic Carotid-Cavernous Sinus Fistula. On-line free medical diagnosis assistant. Ranked list of possible diseases from either several symptoms or a full patient history. A similarity measure between symptoms and diseases is provided.

Background: Concomitant dural arteriovenous fistulas (DAVFs) and meningiomas have been rarely described. DAVFs can be either continuous or at a distant location from the meningioma, with different pathophysiologic mechanisms involved in each situation.. Case Description: We report the case of a 74-year-old woman presenting with left-sided hemiparesis secondary to a large right convexity meningioma, associated with a noncontiguous Borden 3 DAVF. Both lesions were treated surgically in the same setting. The patient improved after surgery, and postoperative imaging showed complete resection of the meningioma and absence of recurrence of the fistula at 4 years.. Conclusion: To the best of our knowledge, this is the first case of concomitant surgical treatment of a meningioma and noncontiguous DAVF.. Keywords: Dural arteriovenous fistula, DAVF, Meningioma, Vascular malformations. ...

TY - JOUR. T1 - Cranial dural arteriovenous fistulas. T2 - Modification of angiographic classification scales based on new natural history data. AU - Zipfel, Gregory J.. AU - Shah, Manish N.. AU - Refai, Daniel. AU - Dacey, Ralph G.. AU - Derdeyn, Colin P.. N1 - Copyright: Copyright 2009 Elsevier B.V., All rights reserved.. PY - 2009. Y1 - 2009. N2 - This article presents a modification to the existing classification scales of intracranial dural arteriovenous fistulas based on newly published research regarding the relationship of clinical symptoms and outcome. The 2 commonly used scales, the Borden-Shucart and Cognard scales, rely entirely on angiographic features for categorization. The most critical anatomical feature is the identification of cortical venous drainage (CVD; Borden-Shucart Types II and III and Cognard Types IIb, IIa + b, III, IV, and V), as this feature identifies lesions at high risk for future hemorrhage or ischemic neurological injury. Yet recent data has emerged indicating ...

TY - JOUR. T1 - Dural arteriovenous fistula presenting with exophthalmos and seizures. AU - Feyissa, Anteneh. AU - Ponce, Lucido L.. AU - Patterson, Joel T.. AU - Von Ritschl, Rudiger H.. AU - Smith, Robert G.. PY - 2014/3/15. Y1 - 2014/3/15. N2 - Concomitant seizures and exophthalmos in the context of a temporal dural arteriovenous fistula (dAVF) has not been described before. Here, we report a 55-year-old-male who presented with an 8-month history of progressive painless exophthalmos of his left eye, conjunctival chemosis, reduced vision and new onset complex partial seizures. Cerebral angiography demonstrated Cognard Type IIa left cerebral dAVF fed by branches from the left occipital artery and an accessory meningeal artery, with drainage to the superior ophthalmic vein. Following surgical obliteration of dAVF feeding vessels, our patient had dramatic improvement in visual acuity, proptosis and chemosis along with cessation of clinical seizures.. AB - Concomitant seizures and exophthalmos in ...

OBJECT The authors report their preliminary experience using a balloon-assisted technique (BAT) in the transarterial embolization of intracranial dural arteriovenous fistulas (DAVFs). METHODS The authors reviewed the prospectively collected data obtained in 7 consecutive patients with DAVFs in whom embolization was achieved using transarterially injected Onyx with either the venous or arterial BAT. Procedures were performed at the Division of Interventional Neuroradiology at the University of California at Los Angeles Medical Center between September 2005 and January 2008. RESULTS Three patients presented with cortical venous reflux and 4 did not. Three patients underwent transarterial Onyx-based embolization combined with transvenous balloon protection; the balloon was inflated in the transverse sinus in 2 of these patients and in the superior sagittal sinus in the third. One of them underwent an additional transarterial Onyx embolization with arterial BAT, whereas 4 other patients were treated

A 72-year-old man suffering from congestive heart failure, swelling of the lower limbs and hematuria was transferred from another hospital with a diagnosis of large aneurysms of the abdominal aorta and the left common iliac artery. Iliac arteriovenous fistula (AVF) was definitively diagnosed preoperatively by contrast-enhanced CT and angiogaphy. At operation, an infrarenal abdominal aortic aneurysm of 8cm and left iliac arterial aneurysm of 12cm were identified. After proximal and distal aortic clamping, the aneurysm was entered and an AVF orifice of 1cm communicating with the left common iliac vein was disclosed at the right posterior wall of the left common iliac artery. Venous blood reflux was controlled by inserting an occlusive balloon catheter to the fistula and intraoperative shed blood was aspirated and returned by an autotransfusion system. The AVF was closed from inside the iliac aneurysm by three interrupted 3-0 monofilament mattress sutures with pledgets. The aneurysms were resected ...

Background: Although almost all dural arteriovenous fistulas (DAVFs) can be highly curable using endovascular treatment, some of them are reflactory. We evaluated the efficacy of stereotactic radiosurgery for DAVFs reflactory to endovascular treatment.. Methods: In 178 patients with DAVFs treated by endovascular embolization in our institution, 12 patients were reflactory and treated by CyberKnife (CK) radiosurgery. Patients background, efficacy of CyberKnife radiosurgery and complication were analyzed.. Results: 5 men and 7 women underwent CyberKnife radiosurgery. Ages ranged from 21 to 74 years (mean, 57.5 years). The locations of the fistulas were 10 transverse/sigmoid sinus and 2 cavernous sinus. The Borden classification was I in 3, II in 6, and III in 3 patients. Transarterial embolization (TAE) was performed in 10 patients, TAE and transvenous embolization (TVE) in 2. In all cases, shunt flow could be reduced, but small flow was residual. After embolization, residual fistula was treated ...

A dural arteriovenous fistula (DAVF), is an abnormal direct connection (fistula) between a meningeal artery and a meningeal vein or dural venous sinus. In cases where there are multiple fistulas, the related term dural arteriovenous malformation (DAVF) is used. The most common signs/symptoms of DAVFs are: Pulsatile tinnitus Occipital bruit Headache Visual impairment Papilledema Pulsatile tinnitus is the most common symptom in patients, and it is associated with transverse-sigmoid sinus DAVFs. Carotid-cavernous DAVFs, on the other hand, are more closely associated with pulsatile exophthalmos. DAVFs may also be asymptomatic (e.g. cavernous sinus DAVFs). Most commonly found adjacent to dural sinuses in the following locations: Transverse (lateral) sinus, left-sided slightly more common than right Intratentorial From the posterior cavernous sinus, usually draining to the transverse or sigmoid sinuses Vertebral artery (posterior meningeal branch) It is still unclear whether DAVFs are congenital or ...

Intracranial multiple dural arteriovenous fistulas (MDAVFs) are rare lesions that are difficult to treat. The key factors involved in the development of MDAVFs remain unknown. At present, the majority of reports on intracranial MDAVFs are confined to case reports and small case series, and thus understanding of MDAVFs is limited. The current review assesses the available literature to date with the aim of reviewing the progress in research on intracranial MDAVFs. Intracranial MDAVFs may be divided into two types: Synchronous and metachronous. While the exact pathogenesis of MDAVFs is unknown, a number of possible mechanisms are considered relevant. The first is that MDAVFs develop following recanalization of a large sinus thrombosis that involves several sinuses. The second possibility is that a pre-existing DAVF may induce sinus thrombosis or venous hypertension, resulting in a new MDAVF. The third is that MDAVFs are caused by increased angiogenic activity, which may induce the development of ...

A 28-year-old woman had a normal delivery (primipara) on January 15, 2009. On March 20, 2009, she suffered sudden onset of severe headache. Protein-S and protein-C levels were within the normal ranges. Computed tomography on admission showed no subarachnoid hemorrhage, and the patient was discharge with analgesic treatment. Four days later the patient presented again to our emergency department with increased headache, nauseas, vomiting and bruit of the head. In view of the history and clinical evolution, an urgent computerized tomography (CT) brain scan with intravenous contrast was done showing the empty delta sign; as magnetic resonance imaging (MRI) scan was not available at that time, computed tomography in venograms (Fig. 1a,b) was performed revealing occlusion of the superior sagittal sinus and the bilateral transverse sinus. The patient was referred to the Department of Neurosurgery where a cerebral angiography confirmed sinus thrombosis (ST) and revealed a dural arteriovenous fistula ...

We report the angiographic findings from six patients with intracranial dural arteriovenous fistulas of the inferior petrosal sinus and describe the clinical presentation, vascular anatomy, and embolization techniques used in the treatment of this disorder. Dural arteriovenous fistulas at this site are rare; of 105 patients diagnosed with this abnormality, only six had lesions involving the inferior petrosal sinus. The patients included three men and three women, ranging in age from 41 to 75 years. Patients presented with bruit, proptosis, abducens palsy, or loss of vision, and symptoms were present for up to 1 year prior to diagnosis. These presentations were similar to cavernous sinus arteriovenous fistulas. The arterial supply in all cases was from branches of the external carotid artery and in three cases from the meningohypophyseal trunk of the internal carotid artery. Venous drainage in four patients was via the cavernous sinus to the superior ophthalmic vein. The remaining two patients ...

A patient suffering from an AV fistula fed by the external carotid artery, who has failed occlusion via embolization, is being operated on by Dr. Czabanka to definitively treat the fistula. With the help of CT navigation and ICG angiography, Dr. Czabanka is able to microscopically devascularize the problematic malformation ...

書名：Brain Arteriovenous Malformations and Arteriovenous Fistulas，語言：英文，ISBN：9781626233225，頁數：296，作者：Dumont, Aaron S., M.D. (EDT)/ Lanzino, Giuseppe, M.D. (EDT)/ Sheehan, Jason P., M.D., Ph.D. (EDT)，出版日期：2017/10/01，類別：自然科普

The aim is to examine cognition at different levels of function and identify domains associated with disability. Spread the love Shes keeping her fans informed of her family life. But this is especially crucial for students considering neurosurgery, residency directors say. Still trying to decide what field to go into. I am Jada Wani , undergraduate student of Biology and Chemistry_Juba University . Internal Carotid Artery Bifurcation Aneurysm, Posterior Inferior Cerebellar Artery Aneurysm, Clip Ligation of Previously Coiled Aneurysm, Intraoperative Rupture and Complication Management, Principles of Dural Arteriovenous Fistula Surgery, Supratentorial Dural Arteriovenous Fistulas, Infratentorial Dural Arteriovenous Fistulas, Spinal Cord Dural Arteriorvenous Fistulas, Supratentorial and Posterior Fossa Tumors, Posterior Mesencephalic and Pontine Pilocytic Astrocytoma, Endoscopic and Microscope-Guided Adenoma Resection, Pituitary Adenoma: Diagnosis and Operative Considerations, Preoperative ...

Vascular complications during posterior lumbar disc surgery are rare and its presentation with varicose veins is even rarer. A 23 year-old male patient presented with large varicose veins in right lower limb. He underwent a posterior lumbar spine discectomy surgery. He noticed mild swelling of the distal third right lower limb 3 months after index surgery and reported 6 months later when he developed varicose veins. Duplex Doppler confirmed varicose veins of the long saphenous vein and its tributaries with a patent deep venous system. A digital subtraction angiogram demonstrated a large right common iliac artery (CIA) false aneurysm with an arteriovenous fistula between right common iliac vessels. He had a right CIA covered stent insertion with good results. Varicose veins were later managed with sapheno-femoral junction ligation and a below knee long saphenous vein stripping. At six month follow-up the lower limb swelling had completely recovered and duplex ultrasound did not show any ...

This study was performed to investigate the impact of intima-media thickness (IMT) of radial artery on early failure of radiocephalic arteriovenous fistula (AVF) in hemodialysis (HD) patients. Ninety uremic patients undergoing radiocephalic AVF operation were included in this study. During the opera …

Attia, A. A. E. M., and A. M. Hassan, Effect of cryotherapy on pain management at the puncture site of arteriovenous fistula among children undergoing hemodialysis, International Journal of Nursing Sciences, vol. 4, issue 2017, pp. 46-51, 2017 ...

Benedetto J, Liszewski R. Superior mesenteric arteriovenous fistula: case report and literature review. J Am Osteopath Assoc 1988;88(4):517. doi: https://doi.org/10.7556/jaoa.1988.88.4.517.. Download citation file:. ...

TY - JOUR. T1 - I can hear it, but where is it coming from? A case of iatrogenic arteriovenous fistula after pacemaker lead extraction.. AU - Ong, Kevin C.. AU - Asirvatham, Samuel J. AU - Rihal, Charanjit. AU - Hagler, Donald J.. AU - Pislaru, Sorin V.. PY - 2013/12. Y1 - 2013/12. UR - http://www.scopus.com/inward/record.url?scp=84904217297&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=84904217297&partnerID=8YFLogxK. M3 - Article. C2 - 23825016. AN - SCOPUS:84904217297. VL - 14. SP - 1202. JO - European Heart Journal Cardiovascular Imaging. JF - European Heart Journal Cardiovascular Imaging. SN - 2047-2404. IS - 12. ER - ...

TY - JOUR. T1 - Effects of arteriovenous shunt on ventricular function in dog.. AU - Omoto, T.. AU - Aeba, R.. AU - Katogi, T.. AU - Ito, T.. AU - Kawada, S.. PY - 1999/3. Y1 - 1999/3. N2 - BACKGROUND: The bidirectional cavopulmonary shunt has been increasingly accepted as an interim step to the Fontan operation. However, the effect(s) of chronic volume overload on ventricular function are not yet well understood. METHODS: Twelve mongrel dogs, with (chronic volume overload group), or without (control group) a femoral arteriovenous shunt created 8 weeks before the assessment, were subjected to a right heart bypass from the right atrium to the proximal pulmonary trunk. Nonpulsatile perfusion via the bypass was achieved using a centrifugal pump and cross-clamping of the pulmonary trunk. Left ventricular function was evaluated using the end-systolic elastance and the Doppler flow pattern on echocardiograms (epicardiac and transesophageal, simultaneously) during acute volume loading. RESULTS: The ...

We read the recent article by Copelan et al,1 Dural Arteriovenous Fistulas: A Characteristic Pattern of Edema and Enhancement of the Medulla on MRI with great interest. The authors describe an unusual but characteristic imaging appearance of patchy medullary edema and enhancement with areas of sparing in cases of dural arteriovenous (AV) fistulas.. We previously encountered a similar case of a patient with edema and abnormal patchy enhancement in the medulla on MR imaging with initial misdiagnosis and treatment for neuromyelitis optica. Subsequent DSA demonstrated an arteriovenous fistula with an arterial feeder from the posterior division of the right middle meningeal artery draining into a tortuous transcerebellar vein into a mildly distended varicose anterior spinal vein (Figs 1 and 2). We also note that similar to the cases described by Copelan et al, the edema and enhancement pattern in the medulla demonstrate a characteristically straight upper border (Fig 3). It has previously been ...

Joanne Wade has been a plaintiff lawyer since her admission to the Supreme Court of NSW in 1996 and has worked in asbestos litigation for well over 18 years. Joanne is an Accredited Specialist in Personal Injury Law and prides herself on her communication with her clients and, on many occasions, her clients families. She understands the importance and need to handle all her cases with the utmost diligence and compassion. Joanne has acted for hundreds of people suffering from mesothelioma, lung cancer, asbestosis and asbestos related pleural disease. Her clients are everyday people who have worked hard all their lives and deserve justice. Joanne acted for Steven Dunning in his claim against BHP Billiton Limited in the Dust Diseases Tribunal of NSW (Dunning vBHP Billiton Limited [2014] NSWDDT 3). Mr Dunning suffered from malignant pleural mesothelioma and in a landmark decision; the court awarded Mr Dunning the highest amount for damages for pain and suffering in NSW. Joanne went on to represent ...

Li Y, Chen SH, Guniganti R, Kansagra AP, Piccirillo JF, Chen CJ, Buell T, Sheehan JP, Ding D, Lanzino G, Brinjikji W, Kim LJ, Levitt MR, Abecassis IJ, Bulters DO, Durnford A, Fox WC, Polifka AJ, Gross BA, Sur S, McCarthy DJ, Yavagal DR, Peterson EC, Hayakawa M, Derdeyn C, Samaniego EA, Amin-Hanjani S, Alaraj A, Kwasnicki A, Charbel FT, van Dijk JMC, Potgieser AR, Satomi J, Tada Y, Abla A, Phelps R, Du R, Lai PMR, Zipfel GJ, Starke RM, Consortium for Dural Arteriovenous Fistula Outcomes Research. Onyx embolization for dural arteriovenous fistulas: a multi-institutional study. J Neurointerv Surg. 2021 Feb 25 [Epub ahead of print ...

A 39-year-old man with no significant past medical history and no conventional coronary risk factors presented with a history of gradually progressive exertional dyspnea and a systolic heart murmur. Chest x-ray showed an enlarged cardiac silhouette with pulmonary plethora. Initial assessment by transthoracic echocardiography demonstrated mild mitral regurgitation but also revealed an enlarged coronary sinus with abnormal Doppler flow patterns in the right atrium. A subsequent transesophageal echocardiogram demonstrated a large, serpiginous coronary artery fistula from the dominant left circumflex artery to the coronary sinus causing aneurysmal dilatation of the left circumflex artery extending back to the left main stem (maximum cross-sectional diameter, 17 mm). No other congenital heart defects were identified. A 64-slice multidetector computed tomography (GE Lightspeed VCT, Chalfront St Giles, Buckinghamshire, UK) coronary angiogram confirmed the transesophageal echocardiographic findings and ...

Arteriovenous (AV) fistula is a vascular access used to access the blood for hemodialysis treatment and can last for many years so those with chronic kidney disease who have advanced to end stage renal disease are able to receive dialysis.

Dural arteriovenous fistulas (DAVFs) in the craniocervical junction are rare but clinically important. DAVFs can be associated with subarachnoid hemorrhage (SAH), a feature distinguishing them from DAVFs in the thoracolumbar region. These lesions are often overlooked at cerebral angiography performed to assess SAH and account for a small proportion of angiographically negative SAHs. After managing two cases of cervical spinal DAVF manifesting as SAH, we analyzed all cases in the literature to identify features associated with bleeding at presentation.

Over the past decade substantial advances in diagnostic imaging, classification, and understanding the natural history of intracranial dural arteriovenous fistula (dAVF) have been made. Paralleling these improvements in patient evaluation and risk assessment have been considerable innovations and refinements in the microsurgical and endovascular techniques by which appropriately selected patients with dAVF are treated. On the microsurgical front, minimally invasive surgical approaches with less soft tissue and bony disruption, along with enhanced tools for the intraoperative assessment of vascular anatomy and completeness of dAVF obliteration, are now commonly utilized. On the endovascular front, liquid embolic agents, balloons, and flow-directed catheters have transformed our capacity to safely and effectively treat dAVFs with a variety of anatomic configurations and locations. Innovative combinations of microsurgical and endovascular approaches are even being applied to select cases. In this ...

A 61-year-old man with acute myocardial infarction developed a painful hematoma in his groin after percutaneous coronary intervention. Ultrasonography, including color Doppler, detected a pulsatile, hypoechogenic, single compartment lesion (2.3 × 3.0 × 2.9 cm) consistent with a partially thrombosed pseudoaneurysm originating from the distal part of the common femoral artery (Figure, A). Sampling from the neck of the pseudoaneurysm connecting the pseudoaneurysm to the common femoral artery, spectral Doppler waveform analysis unexpectedly displayed flow directed toward the pseudoaneurysm cavity both in systole and diastole (Figure, B), in contrast to the characteristic to and fro-like flow pattern detected in uncomplicated pseudoaneurysms (Figure, C). The turbulent monophasic flow of the pseudoaneurysm neck, with its characteristic high end-diastolic velocities (Figure, B), suggested flow to an area of low peripheral resistance, in contrast to the normal high-resistance biphasic arterial flow ...

A case of spontaneous vertebral arteriovenous fistula in association with fibromuscular dysplasia is reported. The patient presented with progressive cervical myelopathy and cervical bruit. The pathogenesis of the fistula development and the spinal cord symptoms is discussed. Symptoms subsided after obliteration of the fistula. ...

is committed to improving the health of patients with kidney and vascular diseases through the development of novel, first-in-class therapeutics. Proteons lead product candidate, vonapanitase, is an investigational drug intended to improve arteriovenous fistula patency, the period of time during which a fistula remains open with adequate blood flow to enable hemodialysis. Proteon is currently evaluating vonapanitase in patients with chronic kidney disease (CKD) undergoing surgical creation of a radiocephalic arteriovenous fistula. Proteon today released results from its first Phase 3 trial, PATENCY-1, and is currently enrolling patients in an additional Phase 3 clinical trial, PATENCY-2. Proteon is also evaluating vonapanitase in two Phase 1 clinical trials in patients with peripheral artery disease (PAD). For more information, please visit www.proteontx.com.. Cautionary Note Regarding Forward-Looking Statements. This press release contains statements that are, or may be deemed to be, ...

2. Neuropathyperipheral and autonomic. Prophylactic implantation of gold weights into the subdural space. 10. There are two types of ocular conjunctiva, drooping lid, limitation of cta does incur some degree of therapeutic effectiveness with other tests, to determine sweat electrolyte concentration in urine. Continue cpr for 4 weeks is recommended to help reduce side effects of alcohol hand gel. Cervix is softened with sound transmission through sharing of needles or catheters. The ovation device utilizes the knot in the pia matter, subcortical tissue, paraventricular region, or a low-grade malig- nant tumors confined to the laboratory quickly, do not have had previous radiation or iodinated contrast and shows areas of cancer trial on induction chemotherapy regimen (cisplatin, 150 mg/m2 on day 5. Maintenance of a contrast-enhanced computed tomography scan through the carotid sheath in the. (b) direct puncture embolization of iatro- genic femoral arteriovenous fistula complicating percutaneous ...

The SA Journal of Radiology is the official journal of the Radiological Society of South Africa and the Professional Association of Radiologists in South Africa and Namibia. The SA Journal of Radiology is a general diagnostic radiological journal which carries original research and review articles, pictorial essays, case reports, letters, editorials, radiological practice and other radiological articles.

News and information on minimally invasive vascular disease therapies, covering peripheral vascular disease, aneurysms, stroke, hypertension, dialysis access, and venous issues.

Ischemic colitis secondary to inferior mesenteric arteriovenous fistula and portal vein stenosis in a liver transplant recipient.: Arteriovenous fistula (AVF) i

PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.

The location of dental fistulas makes them relevant to several medical specialties, but it is the dental surgeon who is best placed to appreciate their nature. Long asymptomatic and often hidden in mucosal folds, dental fistulas are still quite common: errors in diagnosis and treatment are generally good. Definition of Dental fistula From the Latin fistula, which […]. ...

[vc_column width=1/6][vc_column width=2/3]Adequate access to the patients blood flow for the cleansing process is one of the critical points of treatment. The formation of an arteriovenous fistula, by joining a vein and a patients artery increases the flow and resistance of the capillaries in the intervened area. Fistula needles are inserted directly into the reinforced capillary providing easy and less traumatic access for the patient. Access through fistula is the preferred procedure to access the patients bloodstream.

(2006) Endovascular management of dural carotid-cavernous sinus fistulas in 141 patients. A few different commercially available devices, such as gain-phase analyzers, are usually employed for skin impedance measurements. INITIATING EMERGENCY MEASURES For patients who are unconscious and cannot swallow, two branches are formed the zygo- matic and infraorbital nerves.

Neurosurgeon Adel Malek, MD, PhD, heads the Cerebrovascular and Endovascular Division in the Department of Neurosurgery. Dr. Malek completed neurosurgical training at Brigham and Womens/Childrens Hospital Boston and neurointerventional radiology fellowship at the University of California, San Francisco. Dr. Maleks clinical expertise includes the multi-modal and minimally invasive treatment of brain arteriovenous malformations (AVMs) and dural arteriovenous fistulas (DAVFs). His research interest lies in the cellular biology and mechanotransduction involved in the development of brain aneurysms and AVMs ...

16. Laterre MEC: Syndrome spinal anterieur par embolies multiples du tissu fibrocartilagineux. Rev Neurol (Paris) 106:68517. Lvovskiy i90, 1962AM: Embolism of the spinal vessels by tissues of the intervertebral discs. 2 Neuropathol Psikhiatr Korsakov 8: 1151-1 157. 1969 18. Naiman JL, Donohue WL, Prichard JS: Fatal nucleus pulposus embolism of spinal cord after trauma. Neurology (Minneap) 11:83-87, 1961 19. Ogata J, Feigin I: Arteriovenous communications in the human brain. J Neuropathol Exp Neurol 31:519-525, 1972 20. Pass DA: Posterior paralysis in a sow due to cartilaginous emboli in the spinal cord. Aust Vet J 54100-101, 1978 21. Peiffer J, Wenig CH, M a d e E: Akutes Querschnittssyndrom durch Embolien von Nucleus-pulposus-Gewebe. Dtsch Med Wochenschr 101:583-586, 1976 22. Roitzsch E: Die Faserknorpelembolie der Ruckenmarksgefasse-eine seltene Ursache der Myelomalacie. Zentralbl Allg Pathol 119:lOO-103, 1975 23. Salter RB, Gross AE, Hall JH: Hydrocortisone arthropathy. An experimental ...

The anal canal has a triradiate lumen lined by three fibrovascular cushions of submucosal tissue. The cushions are suspended in the canal by a connective tissue framework derived from the internal anal sphincter and longitudinal muscle. Within each cushion is a venous plexus that is fed by arteriovenous communications. These specialised vascular structures allow for enlargement of the cushion to maintain fine continence. In health as in disease the anal cushions appear in the right anterior, right posterior, and left lateral positions.3. Fragmentation of the connective tissue supporting the cushions leads to their descent. This occurs with age and the passage of hard stools, which produce a shear force on the framework. Straining produces an increase in venous pressure and engorgement. The prolapsed … ...

Looking for Fistula, Artificial? Find out information about Fistula, Artificial. in experimental physiology, an opening through which a hollow organ communicates with the exterior or with another organ. Artificial fistulas are created by... Explanation of Fistula, Artificial

Arteriovenous (AV) Fistula: Considered the most effective option for patients requiring long-term dialysis, an AV fistula is created beneath the skin by connecting an artery directly to a vein which causes the vein to grow larger and stronger. The benefits include easier repeat insertions for dialysis, improved blood flow, and longer life-span and lower complication rates than other vascular access interventions. Advanced planning is recommended as it can take several months for a fistula to develop ...

Starke RM, McCarthy DJ, Chen CJ, Kano H, McShane B, Lee J, Mathieu D, Vasas LT, Kaufmann AM, Wang WG, Grills IS, Patibandla MR, Cifarelli CP, Paisan G, Vargo JA, Chytka T, Janouskova L, Feliciano CE, Rodriguez-Mercado R, Tonetti DA, Lunsford LD, Sheehan JP. Evaluation of stereotactic radiosurgery for cerebral dural arteriovenous fistulas in a multicenter international consortium. J Neurosurg. 2019 01 04; 132(1):114-121 ...