نتایج جستجو برای: arterial venous fistulae

تعداد نتایج: 189541  

Journal: :Cardiovascular research 2005
Amy P Wong Nafiseh Nili Bradley H Strauss

OBJECTIVE We analyzed the phenotypic and functional differences between venous and arterial smooth muscle cells (SMC) and the role of decorin in modulating these differences. METHODS AND RESULTS SMC were isolated from the jugular veins and carotid arteries of male white New Zealand rabbits. Venous SMC demonstrated increased proliferation (2-fold, p<0.001), migration (1.7-fold, p<0.001), and c...

2016
Gang Wu Teng Jin Ting Li Xiaoming Li

PURPOSE To evaluate the diagnostic value of time resolved magnetic resonance angiography with interleaved stochastic trajectory (TWIST) using Gadobutrol for preoperative evaluation of lower extremity tumors. MATERIALS AND METHODS This prospective study was approved by the local Institutional Review Board. 50 consecutive patients (31 men, 19 women, age range 18-80 years, average age 42.7 years...

2018
Jian Guo Rucai Zhan Yong Ren Xiangjing Meng Rengli Liu Guijie Li Dong Wang Jinlong Sun

BACKGROUND Arteriovenous fistula (AVF) is defined as an abnormal communication between the high flow arterial system and the low flow venous network, which directly connects the arterial feeding vessels and the near draining veins without normal intervening capillary bed. Arteriovenous fistula incurs in preauricular region is exceeding rare. Most of these fistulae occur as a result of an iatrog...

2013
Kamran Tavakol Bahareh Ghahramanpoori Mohammad Fararouei

Substitution of arterial with venous blood samples to estimate blood gas status is highly preferable due to practical and safety concerns. Numerous studies support the substitution of arterial by venous blood samples, reporting strong correlations between arterial and venous values. This study further investigated the predictive ability of venous blood samples for arterial Acid-Base Balance (pH...

2015
Naveen Mohan Gireesh Kumar

The study aims to identify the correlation between arterial and venous blood gas variables, in patients with metabolic acidosis secondary to renal failure and/or diabetic ketoacidosis(DKA). Paired arterial and venous blood samples of 100 patients, with metabolic acidosis resultant to renal failure and/or diabetic ketoacidosis during 2009-2011, were analyzed and the correlation between the varia...

Journal: :American journal of physiology. Heart and circulatory physiology 2006
Jiun-Jr Wang Jacqueline A Flewitt Nigel G Shrive Kim H Parker John V Tyberg

Compared with arterial hemodynamics, there has been relatively little study of venous hemodynamics. We propose that the venous system behaves just like the arterial system: waves propagate on a time-varying reservoir, the windkessel, which functions as the reverse of the arterial windkessel. During later diastole, pressure increases exponentially to approach an asymptotic value as inflow contin...

2015
Ane M. Holme Marie Cecilie P. Roland Bjørg Lorentzen Trond M. Michelsen Tore Henriksen

OBJECTIVES The placental transfer of nutrients is influenced by maternal metabolic state, placenta function and fetal demands. Human in vivo studies of this interplay are scarce and challenging. We aimed to establish a method to study placental nutrient transfer in humans. Focusing on glucose, we tested a hypothesis that maternal glucose concentrations and uteroplacental arterio-venous differen...

Journal: :The Medical journal of Malaysia 2012
Wan Najmi Low Han Tong Mohan Nallusamy Kamarul Imran Musa

The reported rates of Primary Fistula Failure (fistula fail to mature) varies from 8% to 53%. Immature fistulae will lead to prolonged dependence on dialysis catheters. This phenomenon is well known to be associated with the risk of infective complications, central venous thrombosis or stenosis and patients’ inconvenience. Numerous studies have reported the predictors of successful fistulae, bu...

غفوری, مهیار, فامیلی, پیمان,

Background: Erectile dysfunction is an important problem in men and an organic cause is found in about 50% of cases. When a vasculogenic etiology is suspected, imaging assessments are of great help. Cavernosography is traditionally recognized as an imaging modality for evaluation of venous leakage in men with impotency. We employed CT cavernosography as a novel technique for demonstrating penil...

2017
Hironori Ebishima Masataka Kitano Kenichi Kurosaki Isao Shiraishi

Objectives: Although venography guidance is helpful for central venous catheter placement, it is sometimes difficult to place a peripheral intravenous cannula for enhancement. We designed a new technique for establishing femoral venous access using venography guidance in the return phase of peripheral arteriography. This new technique was named arterial injection venous return guidance. Here we...

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