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https://www.readbyqxmd.com/read/29682125/two-cases-of-micro-arteriovenous-fistula-in-the-lower-extremity-with-misdiagnosis-of-refractory-cellulitis
#1
Miyako Tanaka, Fukashi Serizawa, Yohei Nagaoka, Takuya Jimbo, Kazuki Kawashima, Takeshi Asakura, Hiroshi Otomo, Kenichi Yokota
We report our experience of two cases of refractory cellulitis caused by peripheral micro-arteriovenous fistulas (AVFs) in the lower extremity. The micro-AVFs were so small that they could not be located accurately; further, the patients' symptoms differed markedly from those previously reported for AVF. AVF is known to cause ischemic symptoms. In contrast, micro-AVF causes congestive symptoms and remains undetected in the majority of patients. Identification of this pathology is crucial to enable effective treatment by the ligation of the incompetent perforator vein that increases venous hypertension, leading to congestive symptoms...
March 25, 2018: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29680929/evaluation-of-factors-affecting-time-to-achieve-dry-weight-among-hemodialysis-patients-using-bioimpedance-spectroscopy
#2
Amjad Khan, Amer Hayat Khan, Azreen Syazril Adnan, Syed Azhar Syed Sulaiman, Nafees Ahmad, Siew Hua Gan
BACKGROUND: Achieving and maintaining dry weight appears to be an effective strategy for controlling and maintaining normotension among hypertensive patients on hemodialysis (HD). OBJECTIVE: The present study aimed to determine the time at which the majority of patients achieve postdialysis dry weight using bioimpedance spectroscopy (BIS). METHODS: A total of 220 HD patients were prospectively assessed for fluid overload using the Fresenius body composition monitor (BCM)...
April 22, 2018: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29680175/three-year-patency-and-recurrence-rates-of-revision-using-distal-inflow-with-a-venous-interposition-graft-for-high-flow-brachial-artery-based-arteriovenous-fistula
#3
Michael W M Gerrickens, Roel H D Vaes, Bastiaan Govaert, Magda van Loon, Jan H M Tordoir, Frank van Hoek, Joep A W Teijink, Marc R Scheltinga
OBJECTIVES: Upper arm arteriovenous fistulas (AVF) occasionally develop high flow. Revision using distal inflow (RUDI) effectively reduces flow of high flow accesses (HFA) in the short-term and is also popularised for treatment of haemodialysis access induced distal ischaemia (HAIDI). The long-term efficacy is unknown. The study's aim was to report on 3 year RUDI patency and recurrence rates for HFA with and without HAIDI. MATERIAL AND METHODS: This was a retrospective cohort study of patients with a HFA with or without HAIDI undergoing RUDI using greater saphenous vein (GSV) interposition between March 2011 and October 2017 at three facilities...
April 18, 2018: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29673239/effects-of-treadmill-exercise-on-pi3k-akt-gsk-3%C3%AE-pathway-and-tau-protein-in-high-fat-diet-fed-rats
#4
Jae-Hoon Jeong, Eun-Bum Kang
PURPOSE: This study aimed to clearly evaluate the effects of obesity on cerebral health. Thus, we induced obesity in rats using a long-term high-fat diet (HFD), then investigated its effects on insulin signaling and tau hyperphosphorylation. Additionally, we examined the effects of 8 weeks of treadmill exercise (TE) on insulin signaling and tau hyperphosphorylation. METHODS: Rats were separated into Normal Diet-Control, HFD-Control, and HFD-TE groups. TE loads were gradually increased...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29672304/the-role-of-doppler-ultrassonography-in-significant-and-borderline-stenosis-definition
#5
Ana Castro, Carla Moreira, Paulo Almeida, Norton de Matos, Luís Loureiro, Gabriela Teixeira, Duarte Rego, Sérgio Teixeira, Joaquim Pinheiro, Telmo Carvalho, Isabel Fonseca, José Queirós
BACKGROUND: The definition of significant stenosis (SS) remains controversial. METHODS: We retrospectively reviewed 1,040 consultations. SS was defined in the presence of clinical and echo-Doppler (DDU) criteria: Qa <500 mL/min or Qa decrease >25%; RI >0.7 in the feeding artery or absolute minimal luminal stenosis diameter <2.0 mm. Stenosis without any additional criteria were considered borderline stenosis (BS). RESULTS: Two hundred twenty-one arteriovenous fistulas (AVFs) were included: 58...
April 19, 2018: Blood Purification
https://www.readbyqxmd.com/read/29662810/clinical-results-of-arteriovenous-fistulas-constructed-using-autologous-vessels-in-end-stage-renal-disease-patients-on-hemodialysis
#6
Ki Tae Kim, Jae Wook Ryu, Pil Won Seo, Kyoung Min Ryu
Background: For hemodialysis patients with end-stage renal disease (ESRD), it is important to construct an efficient vascular access with a superior patency rate. This study investigated the factors influencing the efficiency of arteriovenous fistulas (AVFs) constructed using an autologous vessel and evaluated the necessity of ultrasonography as a preoperative tool for AVF construction. Methods: A retrospective analysis was performed of 250 patients in whom an AVF was constructed using an autologous vessel due to ESRD at our institution from January 2009 to April 2016...
April 2018: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29657205/evaluation-and-comparison-of-the-effects-of-xyla-p-cream-and-cold-compress-on-the-pain-caused-by-the-cannulation-of-arteriovenous-fistula-in-hemodialysis-patients
#7
Ziba Ghoreyshi, Monireh Amerian, Farzaneh Amanpour, Hossein Ebrahimi
This study aimed to investigate and compare the effects of Xyla-P cream and cold compress on the pain caused by the insertion of a needle into the arteriovenous fistula (AVF) in hemodialysis (HD) patients. This clinical trial was conducted on HD patients who were selected using simple random sampling method. Using a visual analog scale, pain intensity was measured during two HD sessions in three stages including after the application of a placebo, after application of Xyla-P cream, and after the application of cold compress...
March 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29655896/differential-expression-profile-of-long-non-coding-rna-in-the-stenosis-tissue-of-arteriovenous-fistula
#8
Yan Yan, Wen Ye, Qinkai Chen, Liu Yang, Li Zhang, Yu Liu, Xiaochen Zhou, Gongxian Wang
OBJECTIVE: To analyze and preliminarily validate the lncRNA expression profiles in the stenosis tissue of arteriovenous fistula (AVF). METHODS: A total of 54 uremic patients administered in the department of nephrology in the First Affiliated Hospital of Nanchang University between February 2017 and March 2017 were included in the study and subsequently categorized as experimental group, which included 12 patients with confirmed diagnosis of AVF, and control group which included 42 patients with no vascular stenosis...
April 12, 2018: Gene
https://www.readbyqxmd.com/read/29655664/a-retrospective-investigation-of-abdominal-visceral-fat-body-mass-index-bmi-and-active-smoking-as-risk-factors-for-donor-site-wound-healing-complications-after-free-diep-flap-breast-reconstructions
#9
Floyd W Timmermans, Pèdrou B Westland, Stefan Hummelink, Joep Schreurs, Marijn Hameeteman, Dietmar J O Ulrich, Nicholas J Slater
BACKGROUND: The deep inferior epigastric artery perforator (DIEP) flap is one of the most common techniques for breast reconstruction. Body mass index (BMI) is considered as an important predictor of donor site healing complications such as wound dehiscence. The use of computed tomography (CT) proved to be a precise and objective method to assess visceral adipose tissue. It remains unclear whether quantification of visceral fat provides more accurate predictions of abdominal wound healing complications than BMI...
March 28, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29628300/long-term-outcomes-of-selective-renal-artery-embolization-for-renal-arteriovenous-fistulae-with-dilated-venous-sac
#10
Yasushi Kimura, Keigo Osuga, Yusuke Ono, Tetsuro Nakazawa, Hiroki Higashihara, Noriyuki Tomiyama
PURPOSE: To retrospectively evaluate the role of selective renal artery embolization for renal arteriovenous fistulae (AVFs) with dilated venous sac. MATERIALS AND METHODS: Between 2002 and 2015, 14 patients (7 men and 7 women; mean age, 60 years) with a single renal AVF with dilated venous sac underwent selective renal artery embolization. Three patients presented with gross hematuria, 4 presented with occult blood in urine, and 1 presented with chronic heart failure...
April 6, 2018: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29624859/comparison-between-open-and-pharmacomechanical-repair-of-acutely-thrombosed-arteriovenous-hemodialysis-fistulae-within-a-decade
#11
Susanne Regus, Veronika Almási-Sperling, Ulrich Rother, Alexander Meyer, Axel Schmid, Michael Uder, Werner Lang
INTRODUCTION: Different declotting techniques are available for acutely thrombosed arteriovenous hemodialysis fistulae (AVF). The aim of this single-center study was to compare immediate and follow-up results between surgical repair and a modified interventional lyse-and-wait technique characterized by prolonged local reaction times of recombinant tissue-plasminogen activator (rtPA). MATERIALS AND METHODS: We retrospectively analyzed medical records of 110 consecutively treated patients between the years 2003 and 2013...
April 6, 2018: Hemodialysis International
https://www.readbyqxmd.com/read/29615350/a-technique-for-the-salvage-of-megafistulas-allowing-immediate-dialysis-access
#12
Nosratollah Nezakatgoo, Steven D Kozusko, Jefferson T Watson, Rebecca Empting, Charles P Shahan, Michael J Rohrer
OBJECTIVE: Almost two million individuals are undergoing renal replacement therapy worldwide, with hemodialysis being the common form. Many factors influence the primary patency of an arteriovenous fistula (AVF), including vessel size, fistula flow rates, cannulation practice, and thrombotic tendencies. Excess dilation of the AVF, resulting in the development of a megafistula, is a complication that can result in a need for AVF revision and subsequent failure. METHODS: The charts of patients who underwent autogenous AVF revision because of the development of a megafistula with aneurysmectomy and vein transposition by a single surgeon during a 7-year period from 2009 through 2016 were reviewed...
March 31, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29603270/value-of-a-novel-16-lead-high-definition-ecg-machine-to-detect-conduction-abnormalities-in-structural-heart-disease
#13
Guo-Liang Li, Ardan M Saguner, Deniz Akdis, Guy Hugues Fontaine
BACKGROUND: Depolarization abnormalities are hardly detectable by standard 12-lead ECG in some patients. OBJECTIVE: To evaluate the value of the 16-lead HD-ECG machine to record conduction abnormalities including Epsilon waves in patients with structural heart disease. METHODS: Tracings with 12-lead ECG, 16-lead HD-ECG and SAECG were studied. RESULTS: 1. Case of severe CAD On 16-lead HD-ECG, a tiny intra QRS signal was noted in lead-III, a prolonged P wave in lead-II, and fragmentation on top of lead-aVL and lead-aVF...
March 30, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29602630/medicare-costs-associated-with-arteriovenous-fistulas-among-us-hemodialysis-patients
#14
Mae Thamer, Timmy C Lee, Haimanot Wasse, Marc H Glickman, Joyce Qian, Daniel Gottlieb, Scott Toner, Timothy A Pflederer
BACKGROUND: An arteriovenous fistula (AVF) is the recommended vascular access for hemodialysis (HD). Previous studies have not examined the resources and costs associated with creating and maintaining AVFs. STUDY DESIGN: Retrospective observational study. SETTING & PARTICIPANTS: Elderly US Medicare patients initiating hemodialysis therapy during 2010 to 2011. PREDICTOR: AVF primary and secondary patency and nonuse in the first year following AVF creation...
March 28, 2018: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29581458/application-of-quantitative-microstructural-mr-imaging-with-atlas-based-analysis-for-the-spinal-cord-in-cervical-spondylotic-myelopathy
#15
Masaaki Hori, Akifumi Hagiwara, Issei Fukunaga, Ryo Ueda, Kouhei Kamiya, Yuichi Suzuki, Wei Liu, Katsutoshi Murata, Tomohiro Takamura, Nozomi Hamasaki, Ryusuke Irie, Koji Kamagata, Kanako Kunishima Kumamaru, Michimasa Suzuki, Shigeki Aoki
Mapping of MR fiber g-ratio, which is the ratio of the diameter of the axon to the diameter of the neuronal fiber, is introduced in this article. We investigated the MR fiber g-ratio, the axon volume fraction (AVF) and the myelin volume fraction (MVF) to evaluate microstructural changes in the spinal cord in patients with cervical spondylotic myelopathy (CSM) in vivo, using atlas-based analysis. We used diffusion MRI data acquired with a new simultaneous multi-slice accelerated readout-segmented echo planar imaging sequence for diffusion analysis for AVF calculation and magnetization transfer saturation imaging for MVF calculation...
March 26, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29579672/induction-of-extracranial-arteriogenesis-by-an-arteriovenous-fistula-in-a-pig-model
#16
Eva Elina Buschmann, Eun-Ji Lee, Dorit Jacobi, Anne-Katrin Woischnig, Susann Ulusans, Martin Schumacher, Katherine H Smith, Nikolaos Pagonas, Peter Bramlage, Joachim Klisch, Philipp Hillmeister, Ivo R Buschmann
BACKGROUND AND AIMS: Arteriogenesis, the positive outward remodeling and growth of pre-existent collateral vessels, holds potential as a novel treatment for ischemic vascular disease. An extracranial arteriogenesis model in a pig will allow us to study molecular changes in a complex arteriolar network in a more clinically relevant large-animal model. To increase fluid shear stress in the brain, an experimental carotid arteriovenous fistula (AVF model) in minipigs was established, providing high flow through the extracranial rete mirabile...
March 3, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29570006/use-of-the-apollo-detachable-tip-microcatheter-for-endovascular-embolization-of-arteriovenous-malformations-and-arteriovenous-fistulas
#17
Bruno C Flores, Alfred P See, Gregory M Weiner, Brian T Jankowitz, Andrew F Ducruet, Felipe C Albuquerque
OBJECTIVE Liquid embolic agents have revolutionized endovascular management of arteriovenous malformations (AVMs) and arteriovenous fistulas (AVFs). Nonetheless, since 2005, the US FDA has received more than 100 reports of microcatheter breakage or entrapment related to Onyx embolization, including 9 deaths. In 2014, the Apollo detachable-tip microcatheter became the first of its kind available in the US. Since then, few reports on its safety have been published. METHODS The authors conducted a retrospective review of endovascular cases by searching the patient databases at 2 tertiary cerebrovascular centers (Barrow Neurological Institute and University of Pittsburgh Medical Center)...
March 23, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29567872/-tentorial-dural-arteriovenous-fistula-presenting-with-ocular-symptoms-a-case-report
#18
Naotsugu Toki, Osamu Masuo, Hiroki Nishibayashi, Rie Yako, Takumi Kawaguchi, Daisuke Izawa, Naoyuki Nakao
Tentorial dural arteriovenous fistula(dAVF)is classified as Cognard 4 with a high risk of aggressive feature, such as intracranial hemorrhage, venous infarction, and intracranial hypertension. We report a rare case presenting with ocular symptoms caused by tentorial dAVF. A 59-year-old man presented with progressive chemosis and exophthalmos of his left eye. Angiography showed a tentorial dAVF that was primarily fed by the middle meningeal artery and the meningohypophyseal artery. The AVF drained into the superior ophthalmic vein and the cerebellar cortical vein via an enlarged petrosal vein...
March 2018: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29567027/a-prospective-randomized-study-of-bovine-carotid-artery-biologic-graft-and-expanded-polytetrafluoroethylene-for-permanent-hemodialysis-access
#19
Hanaa Dakour Aridi, Isibor Arhuidese, Melissa Scudder, Thomas Reifsnyder, Mahmoud B Malas
OBJECTIVE: Arteriovenous grafts (AVGs) remain reliable substitutes for permanent hemodialysis access in scenarios that preclude the placement of native arteriovenous fistulas (AVFs). The majority of AVGs are constructed of expanded polytetrafluoroethylene (ePTFE), which is relatively inexpensive and readily available, but synthetic AVGs have poor patency rates. On the other hand, biologic grafts confer an advantage by virtue of their inherent similarity to the native human vasculature...
March 19, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29560078/addition-of-audiovisual-feedback-during-standard-compressions-is-associated-with-improved-ability
#20
Steve A Aguilar, Nicholas Asakawa, Cameron Saffer, Christine Williams, Steven Chuh, Lewei Duan
Introduction: A benefit of in-hospital cardiac arrest is the opportunity for rapid initiation of "high-quality" chest compressions as defined by current American Heart Association (AHA) adult guidelines as a depth 2-2.4 inches, full chest recoil, rate 100-120 per minute, and minimal interruptions with a chest compression fraction (CCF) ≥ 60%. The goal of this study was to assess the effect of audiovisual feedback on the ability to maintain high-quality chest compressions as per 2015 updated guidelines...
March 2018: Western Journal of Emergency Medicine
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