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Susan Thapa, Leanna Delhey, Jin Jing, Saly Aboelenein, Wesam Morad, Robert Delongchamp, Mohammed F Faramawi
OBJECTIVE: Cadmium's effect on QRS|T angle has not been studied. An abnormal QRS|T angle deviation may increase the risk for ventricular dysrhythmias. METHODS: We calculated the orientation of spatial QRS|T angle using QRS and T amplitudes of leads V2, V5, V6, and AVF from the National Health and Nutritional Examination Survey III. Cadmium concentration was measured in urine. We fit weighted unadjusted and adjusted logistic regressions to calculate odds ratios and their corresponding 95% confidence intervals...
June 13, 2018: Journal of Occupational and Environmental Medicine
Keita Nakayama, Masashi Shimohira, Kengo Ohta, Kazushi Suzuki, Taeko Goto, Yusuke Sawada, Yuta Shibamoto
A 74-year-old woman underwent abdominal computed tomography for screening, and a right large aneurysmal-type renal arteriovenous fistula (AVF) was found incidentally. The venous sac of the renal arteriovenous fistula was enlarged, and coil embolization was considered. To prevent severe complications such as coil migration, pulmonary embolism, and rupture during procedure, coil embolization was approached via both the feeding artery and the draining vein simultaneously, with balloon occlusion of the feeding artery...
April 2018: Radiology Case Reports
Inés Aragoncillo Sauco, José Manuel Ligero Ramos, Almudena Vega Martínez, Ángel Luis Morales Muñoz, Soraya Abad Estébanez, Nicolás Macías Carmona, Diego Ruiz Chiriboga, Rosario García Pajares, Teresa Cervera Bravo, Juan Manuel López-Gómez, Soledad Manzano Grossi, Elena Menéndez Sánchez, Javier Río Gomez, Ana María García Prieto, Tania Linares Grávalos, Fernando Garcia Boyano, Luis Manuel Reparaz Asensio, Marta Albalate Ramón, Patricia de Sequera Ortiz, Beatriz Gil Casares, Jara Ampuero Mencía, Sandra Castellano, Belén Martín Pérez, José Luís Martín Conty, Alba Santos Garcia, José Luño Fernandez
BACKGROUND: A multidisciplinary approach and Doppler ultrasound (DU) assessment for the creation and maintenance of arteriovenous fistulas (AVF) for haemodialysis can improve prevalence and patency. The aim of this study was to analyse the impact of a new multidisciplinary vascular access (VA) clinic with routine DU. MATERIAL AND METHODS: We analysed the VA clinic results from 2014 and 2015, before and after the implementation of a multidisciplinary team protocol (vascular surgeon/nephrologist) with routine DU in preoperative mapping and prevalent AVF...
June 11, 2018: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
Whitney L Wooderchak-Donahue, Peter Johnson, Jamie McDonald, Francine Blei, Alejandro Berenstein, Michelle Sorscher, Jennifer Mayer, Angela E Scheuerle, Tracey Lewis, J Fredrik Grimmer, Gresham T Richter, Marcie A Steeves, Angela E Lin, David A Stevenson, Pinar Bayrak-Toydemir
RASA1-related disorders are vascular malformation syndromes characterized by hereditary capillary malformations (CM) with or without arteriovenous malformations (AVM), arteriovenous fistulas (AVF), or Parkes Weber syndrome. The number of cases reported is relatively small; and while the main clinical features are CMs and AVMs/AVFs, the broader phenotypic spectrum caused by variants in the RASA1 gene is still being defined. Here, we report the clinical and molecular findings in 69 unrelated cases with a RASA1 variant identified at ARUP Laboratories...
June 11, 2018: European Journal of Human Genetics: EJHG
Cinzia D'Angelo, Silvia Zagnoni, Pamela Gallo, Gianfranco Tortorici, Gianni Casella, Giuseppe Di Pasquale
BACKGROUND: Left main trunk (LMT) occlusion is a rare angiographic finding. The primary purpose was to investigate the ECG pattern of patients with angiographic confirmation of LMT as culprit lesion. METHODS: Forty-eight patients (32 men; mean age 73 years) with angiographic total (21 patients; 44%) or subtotal (27 patients; 56%) occlusion of the LMT were analyzed. Twenty patients (42%) were found to have concomitant coronary lesions. Eighteen patients (38%) required intra-aortic balloon pump support...
June 7, 2018: Journal of Cardiovascular Medicine
Charles D Fraser, Joshua C Grimm, Rui Han Liu, Russell N Wesson, Faris Azar, Robert J Beaulieu, Thomas Reifsnyder
INTRODUCTION: Renal transplant recipients often maintain their hemodialysis access in the event of future allograft failure. Patients may develop complications related to the unused dialysis access and it also limits vein availability for phlebotomy. Accordingly, a change in the current paradigm may be warranted. This study evaluates the indications for, and safety of, arteriovenous fistula (AVF) removal in patients following successful renal transplantation. METHODS: All patients that underwent AVF excision at a single institution from 2006-2016 were retrospectively reviewed...
June 7, 2018: Annals of Vascular Surgery
Michael P DeWane, Wassim H Fares, Cassius Iyad Ochoa Chaar
Aneurysms associated with arteriovenous fistulas (AVF) are rare but can cause significant morbidity. They are often diagnosed after rupture, pain, or embolization. We describe a unique case of a 35-year-old woman with a large iliac vein aneurysm related to an acquired AVF incidentally discovered on ultrasound during pregnancy. She had a diagnosis of "idiopathic" pulmonary hypertension for several years. This report details the diagnosis and treatment with an arterial stent graft that was effective in decreasing the size of the venous aneurysm and reversing the systemic changes associated with the disease...
June 7, 2018: Annals of Vascular Surgery
Taisiya Bezhaeva, Margreet R de Vries, Wouter J Geelhoed, Eric P van der Veer, Sabine Versteeg, Carla M A van Alem, Bram M Voorzaat, Niels Eijkelkamp, Koen E van der Bogt, Alexander I Agoulnik, Anton-Jan van Zonneveld, Paul H A Quax, Joris I Rotmans
The pathophysiology of arteriovenous fistula (AVF) maturation failure is not completely understood but impaired outward remodeling (OR) and intimal hyperplasia are thought to be contributors. This adverse vascular response after AVF surgery results from interplay between vascular smooth muscle cells (VSMCs), the extracellular matrix (ECM), and inflammatory cells. Relaxin (RLN) is a hormone that acts on the vasculature via interaction with RLN/insulin-like peptide family receptor 1 (RXFP1), resulting in vasodilatation, ECM remodeling, and decreased inflammation...
June 8, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
Kazuki Hatayama, Shinichiro Goto, Ayumi Nishida, Masaru Inoue
Pial arteriovenous fistula (AVF) is an extremely rare disease in children. When a child presents with sudden onset of hemiparesis and headache, it is very important to perform spinal magnetic resonance imaging (MRI) scanning for early diagnosis and treatment.
June 2018: Clinical Case Reports
Hugo Ferreira, Ana T Nunes, Ana Oliveira, Ana Beco, Joana Santos, Manuel Pestana
BACKGROUND: Peritoneal dialysis (PD) is an effective renal replacement technique. However, every year a considerable number of patients are transferred to hemodialysis (HD). Our aim was to identify those at risk, in order to place an arteriovenous fistula (AVF). METHODS: Case-control study enrolling all prevalent patients in 2014 and 2015 in our clinic. Groups: 72 case patients who were transferred definitively to HD, 111 control patients (remaining on PD, transplanted, recovered renal function, or deceased)...
June 6, 2018: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
Karim Said, Mohamed Hassan, Mahmoud Farouk, Essam Baligh, Bahaa Zayed
BACKGROUND: Right ventricular (RV) dysfunction is associated with increased risk of heart failure and mortality in end stage renal disease (ESRD) patients. Accumulating evidence suggests an association between atriovenous fistula (AVF) and RV dysfunction; however, there is no adequate data on the relation between AVF characteristics and risk of RV dysfunction after AVF creation. METHODS: The study included 30 ESRD patients (median age: 44years, 17 male) who had their first autogenous mature AVF...
April 18, 2018: Heart, Lung & Circulation
Clément Marcelin, Stephen D'Souza, Yann Le Bras, Francois Petitpierre, Nicolas Grenier, Jos C van den Berg, Bella Huasen
PURPOSE: To prospectively analyze technical and clinical outcome of percutaneous thrombectomy aspiration using a vacuum-assisted thrombectomy catheter in acutely thrombosed dialysis arteriovenous fistula (AVF) and/or arteriovenous graft (AVG). MATERIALS AND METHODS: From June 2016 to April 2017, 35 patients (average age, 61.8 y; range, 33-81 y) presenting with acute thrombosis of dialysis AVF and/or AVG were prospectively evaluated for mechanical thrombectomy using the Indigo System...
May 30, 2018: Journal of Vascular and Interventional Radiology: JVIR
Giulio Barbiero, Stefano Groff, Michele Battistel, Andrea Casarin, Alessandro Guarise, Diego Miotto
BACKGROUND: Iatrogenic injuries of the renal artery include pseudoaneurysms (PSA) and pseudoaneurysms with arteriovenous fistula (PSA + AVF). They can cause hematuria, anemization and flank pain. Endovascular treatment is recommended due to its effectiveness. OBJECTIVE: To assess the potential difference between the embolization of iatrogenic renal PSA and iatrogenic renal PSA + AVF, in terms of technical and clinical success rate, procedure complexity and impact on the renal function...
May 30, 2018: La Radiologia Medica
Pietro Quaretti, Giovanni Leati, Lorenzo Paolo Moramarco, Nicola Cionfoli, Riccardo Corti, Carmine Tinelli, Ilaria Fiorina, Franco Galli
PURPOSE: To evaluate feasibility and efficacy of transanastomotic self-expandable polytetrafluoroethylene stent graft placement for salvage of radiocephalic arteriovenous fistulae (RCAVFs). MATERIALS AND METHODS: From 2008 to 2016, 26 patients (21 male; age, 38-80 y) with dysfunctional RCAVFs for juxtaanastomotic lesions that were unresponsive to angioplasty underwent transanastomotic stent graft placement. Stenotic and thrombotic lesions were included. All were deemed unsuitable for surgical revision...
May 26, 2018: Journal of Vascular and Interventional Radiology: JVIR
Dileep Unnikrishnan, Radhika Annam, Aasems Jacob, Braghadheeswar Thyagarajan, Peter Farrugia
A twenty-two-year-old male with no significant past medical history who presented with chest pain was found to have ST-segment elevation in leads II, III, aVF, and V4-V6. On subsequent EKGs, patient had new ST-segment elevations in anterolateral leads with dynamic changes. Cardiac catheterization showed acute dissection with thrombosis of the distal left main coronary artery leading into the ostial left anterior descending artery. The patient had no cardiac risk factors including hypertension, hyperlipidemia, diabetes, or family history of early cardiac disease...
2018: Case Reports in Cardiology
Suleyman Sezai Yıldız, Kudret Keskin, Murat Avsar, Gokhan Cetinkal, Serhat Sigirci, Gokhan Aksan, Sukru Cetin, Ertugrul Okuyan, Kadriye Orta Kilickesmez
BACKGROUND: Patients with atrial myocardial infarction (ATMI) have frequent cardiac and noncardiac complications. However, ATMI is uncommonly diagnosed because of its nonspecific electrocardiographic changes. HYPOTHESIS: Our objective was to analyze the electrocardiographic characteristic of ATMI in patients with inferior STEMI. METHODS: A total of 932 patients who underwent coronary angiography were evaluated. Thirty-nine patients with ATMI and 33 patients without ATMI with inferior STEMI were recruited for a retrospective study...
May 26, 2018: Clinical Cardiology
Isabel Pascual-Camps, Clara Martínez-Rubio, Roberto Gallego-Pinazo, Enrique España-Gregori
Arteriovenous fistulas (AVFs) are abnormal shunts between the arterial and venous vascular systems. These usually produce ocular pain, increased intraocular pressure (IOP), and diplopia. Less frequently, they may cause retinal changes with visual impairment. Our purpose is to illustrate different retinal manifestations of AVF. We report the multimodal imaging study of three cases with retinal changes due to AVF, showing neurosensory retinal detachment, macular oedema, and macular ischemia. In conclusion, AVF may appear with different ophthalmic alterations...
June 2018: Neuro-ophthalmology
Tsuyoshi Takashima, Keiichiro Matsumoto, Chihiro Takeshita, Eriko Nonaka, Sae Matsushita, Makoto Fukuda, Motoaki Miyazono, Yuji Ikeda
Standard salvage procedures for occuluded autologous arteriovenous fistula (AVF) in a hemodialysis patient are endovascular and/or surgical therapy. When endovascular therapy and thrombectomy prove unsuccessful, it is most likely that creating a new AVF or arteriovenous graft will be considered. However, if the occuluded venous part is short, we have adopted an operative technique for repair of AVF by removal of the occluded short venous part and venovenous end-to-end anastomosis. To our knowledge, the efficacy and clinical course of restoration of AVF by the technique have not been reported to date...
May 21, 2018: Annals of Vascular Surgery
Ramy Ahmed, Satomi Ide, Hiro Kiyosue, Shuichi Tanoue, Shunro Matsumoto, Hiromu Mori
N-butyl-2 cyanoacrylate (NBCA) is a liquid embolic material that is widely used in various endovascular procedures because of its permanent and rapid vascular occluding effect regardless of the coagulation profile of the patient. However, NBCA migration to unintended vessels may result in serious complications. This report describes the retrieval of a migrated NBCA cast from the transverse-sigmoid sinus during dural arteriovenous fistula embolization using a transvenous snaring technique.
January 1, 2018: Interventional Neuroradiology
Mazlum Şahin, Cihan Yücel, Eyüp Murat Kanber, Fatma Tuba İlal Mert, Burcu Bıçakhan
BACKGROUND: To present the surgical experience at a tertiary academic center of treating patients with traumatic arteriovenous fistulas (AVFs) who in whom endovascular treatment was contraindicated or in whom unsuccessful endovascular treatment had been performed. METHODS: A total of 27 patients with traumatic AVFs who underwent surgery between September 2014 and May 2016 were included. The site of injury, timing of surgery, and the surgical methods utilized were analyzed retrospectively...
May 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
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