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https://www.readbyqxmd.com/read/29045733/effect-of-first-cannulation-time-and-dialysis-machine-blood-flows-on-survival-of-arteriovenous-fistulas
#1
Teun Wilmink, Sarah Powers, Lee Hollingworth, Tamasin Stevenson
Background: To study the effect of cannulation time on arteriovenous fistula (AVF) survival. Methods: Analysis of two prospective databases of access operations and dialysis sessions from 12 January 2002 through 4 January 2015 with follow-up until 4 January 2016. First cannulation time (FCT), defined from operation to first cannulation, was categorized as <2 weeks, 2-4 weeks, 4-8 weeks, 8-16 weeks and ≥16 weeks. Early cannulation was defined as FCT within 4 weeks...
October 16, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29036197/morphometric-measurements-of-systemic-atherosclerosis-and-visceral-fat-evidence-from-an-autopsy-study
#2
Aline Nishizawa, Claudia K Suemoto, Daniela S Farias-Itao, Fernanda M Campos, Karen C S Silva, Marcio S Bittencourt, Lea T Grinberg, Renata E P Leite, Renata E L Ferretti-Rebustini, Jose M Farfel, Wilson Jacob-Filho, Carlos A Pasqualucci
BACKGROUND: Morphometric measurements of systemic atherosclerosis and direct quantification of visceral fat are only possible using materials from autopsy studies. However, the few autopsy studies that have investigated the association of visceral fat with atherosclerosis had small sample sizes and focused on coronary arteries of young or middle-aged White subjects. We aimed to investigate the association of pericardial fat (PF) and abdominal visceral fat (AVF) with atherosclerosis in the aorta, coronary, carotid, and cerebral arteries in a large autopsy study...
2017: PloS One
https://www.readbyqxmd.com/read/29027182/preoperative-management-of-arteriovenous-fistula-avf-for-hemodialysis
#3
Gaetano Alfano, Francesco Fontana, Mario Iannaccone, Patrizia Noussan, Gianni Cappelli
Native arteriovenous fistula (AVF) is the favorite access for hemodialysis (HD). The National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (KDOQI) recommends its creation in most patients with renal failure. Unfortunately, intensive efforts to promote native AVF in patients with marginal vessels have increased the rate of primary fistula failure. A non-functioning fistula prompts the use of central venous catheter (CVC) that, unlike AVF, has been associated with an increased risk of morbidity and mortality among patients receiving HD...
October 11, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29026892/prompt-diagnosis-of-st-elevation-myocardial-infarction-with-papillary-muscle-rupture-by-point-of-care-ultrasound-in-the-emergency-department
#4
Koon Ho Cheung, Colin Graham Alexander
A previously healthy 61-year-old man presented to the emergency department with chest pain and dyspnoea for 6 hours. Examination revealed distress with an apical pansystolic murmur. Initial electrocardiogram showed sinus tachycardia and ST elevation in leads II, III, and aVF compatible with an inferior ST-elevation myocardial infarction. Point-of-care echocardiography in the emergency department showed a flail anterior mitral leaflet and severe mitral regurgitation, leading to a provisional diagnosis of papillary muscle rupture...
September 2017: Clinical and Experimental Emergency Medicine
https://www.readbyqxmd.com/read/29025196/prenatal-molecular-diagnosis-in-rasa1-related-disease
#5
Aurélien Palmyre, Mélanie Eyries, Marie-Victoire Senat, Augustin Ozanne, Stéphanie Staraci, Philippe Dufour, Thierry Chinet, Pascal Lacombe, Florent Soubrier, Philippe Charron
RASA1-related disease is a rare autosomal dominant disease characterized by capillary malformations, arteriovenous malformations (AVMs) and/or arteriovenous fistulas (AFVs). Penetrance is nearly complete and vascular malformations may cause serious complications such as organ injury due to oxygenation disorder, brain abscess, hemorrhage and stroke. Early diagnosis is useful in order to discuss optimal management, including AVMs/AVFs embolization or surgical procedures, and try to prevent some of the complications...
October 12, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29024673/not-the-usual-suspect
#6
Andrew G Lee, Jonathan D Shader, Aroucha Vickers, Orlando M Diaz, Jurij R Bilyk
An 82-year-old woman presented with right-sided proptosis, chemosis, and a supraorbital bruit. A dural carotid-cavernous fistula (CCF) was suspected, but catheter angiography revealed an intraorbital inferior ophthalmic vein arteriovenous fistula (AVF) supplied by the right ophthalmic artery and infraorbital branch of the internal maxillary artery. A primary orbital AVF can mimic the clinical and radiographic features of the more common CCF.
October 9, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/29017808/a-novel-technique-for-duplex-guided-office-based-interventions-for-patients-with-acute-arteriovenous-fistula-occlusion
#7
Afsha Aurshina, Enrico Ascher, Anil Hingorani, Natalie Marks
OBJECTIVE: The purpose of the study was to aggressively salvage acutely occluded arteriovenous fistulas (AVFs) using duplex imaging as the sole imaging modality for percutaneous transluminal angioplasty of acutely thrombosed AVF. METHODS: Over a period of 12 months, 14 patients with acute thrombosis of their AVFs underwent 18 procedures in a single center for AVF salvage. All 14 patients presented with chronic renal failure, and six were diabetic. All patients were treated under duplex guidance alone...
October 7, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28990213/the-complex-relationship-among-arteriovenous-access-heart-and-circulation
#8
EDITORIAL
Carlo Basile, Carlo Lomonte
There are currently near 400 000 patients on hemodialysis in the United States. More than 50% of those treated by chronic hemodialysis die because of a cardiovascular (CV) event. The majority of these patients have functional arteriovenous fistulas (AVFs). AVFs have an adverse effect on cardiac function, but their exact contribution to CV morbidity is not clear. It has long been known that a vascular access with an inappropriately high-flow rate may cause high-output heart failure. Paradoxically, there may be hemodynamic and cardiopulmonary benefits conferred by AVF particularly in severe chronic obstructive pulmonary disease...
October 9, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28986150/microsurgical-treatment-and-outcomes-of-spinal-arteriovenous-lesions-learned-from-consecutive-series-of-105-lesions
#9
Linkai Jing, Wei Su, Yi Guo, Zhenxing Sun, James Wang, Guihuai Wang
Spinal arteriovenous lesions (SAVLs), arteriovenous fistulas (AVFs) and arteriovenous malformations (AVMs), are rare and can devastatingly impair spinal cord function. This study aimed to evaluate clinical outcomes after microsurgical treatment with the aid of intraoperative indocyanine green video-angiography (ICG-VA) in a large series of patients with SAVLs. We retrospectively reviewed the cases of 95 consecutive patients with 105 SAVLs (77 spinal AVFs, 28 spinal AVMs) who had been treated surgically during 2010-2016 in two hospitals by the same experienced surgeon...
October 3, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28977080/foix-alajouanine-syndrome-mimicking-a-spinal-cord-tumor
#10
Renan Salomão, Nathalie Henriques Silva Canêdo, Guilherme P Abrão, Carlos Lima, Marcus André Acioly
Subacute necrotizing myelopathy (SNM) or Foix-Alajouanine syndrome is a rare disease characterized by progressive neurological dysfunction caused by a spinal dural arteriovenous fistula (AVF). Radiological diagnosis is usually suspected when there is intramedullary nonspecific enhancement and perimedullary flow voids. Ring-enhancement is rarely reported in the scope of AVF, which poses a diagnostic challenge and raises the suspicion of a spinal cord tumor. In such situations, biopsy can be required and delay proper diagnosis...
July 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28971159/iliac-arteriovenous-fistulas-after-lumbar-spinal-surgery
#11
Osman Ocal, Bora Peynircioglu, Gonca Eldem, Erhan Akpinar, Mehmet Ruhi Onur, Giray Kabakci
Iatrogenic arteriovenous fistula (AVF) is an unusual and potentially fatal complication of lumbar spinal surgery. The presentation of these injuries is usually late, with symptoms such as leg swelling or cardiac failure. It is crucial to suspect AVF in the patient which presents to emergency with lumbar spinal surgery history. The diagnosis is often based on imaging studies such as computed tomography (CT) or magnetic resonance (MR) angiography. Surgery was the first choice of treatment, but with recent advances in stent technology endovascular approach has become widely popular...
September 2017: Turkish Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28970522/imaging-of-patients-with-complex-hemodialysis-arterio-venous-fistulas-using-time-resolved-dynamic-ct-angiography-comparison-with-duplex-ultrasound
#12
Mathias Meyer, Nicole Geiger, Urs Benck, Daniela Rose, Sonja Sudarski, Melissa M Ong, Stefan O Schoenberg, Thomas Henzler
To evaluate the feasibility and potential on therapy management of time-resolved dynamic computed tomography angiography (dCTA) in patients with forearm arterio-venous fistula (AVF)/arterio-venous grafts (AVG). Thirty-five patients with complex failing forearm AVF/AVGs were examined with ultrasound and a dCTA protocol. Diagnosis and therapy management was evaluated versus duplex ultrasound (DUS) in three different readouts: 1. all dCTA datasets; 2. one arterial phase of the dCTA dataset; 3. one arterial and one venous dataset out of the dCTA dataset...
October 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28960860/impact-of-statins-on-arteriovenous-fistulas-outcomes-a-meta-analysis
#13
Qingsong Wan, Li Li, Shikun Yang, Fenfen Chu
Statins are effective lipid-lowering drugs with beneficial pleiotropic effects for vascular remodeling processes, statins may have a beneficial effect on the function of arteriovenous fistulas (AVFs) in hemodialysis (HD) patients. Therefore, we performed this systematic review to assess the protective effects of statin therapy in HD patients. The randomized controlled trials (RCTs) or quasi-RCTs and retrospective cohort studies (RCS) of statin therapy for the function of AVFs in HD patients were searched from multiple databases...
September 28, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28952048/p-wave-morphology-and-electrical-activity-of-the-isolated-left-atrial-appendage-on-12-lead-ecg-in-patients-with-recurrent-atrial-tachyarrhythmias-after-pulmonary-vein-isolation
#14
Tina Lin, Andreas Rillig, Andreas Metzner, Shibu Mathew, Christian Heeger, Peter Wohlmuth, Roland Tilz, Karl-Heinz Kuck, Feifan Ouyang
PURPOSE: Left atrial appendage isolation(LAAI) may occur during catheter ablation of complex atrial tachyarrhythmias(aTa). We compare P-waves before and after LAAI and characterize LAA activity on the 12-lead ECG after LAAI. METHODS: Twenty-five patients were analyzed after LAAI. P-wave amplitude, duration, and morphology before and after LAAI were analyzed. Automaticity in the isolated LAA was identified, and magnified 12-lead surface ECGs were analyzed for LAA activity, amplitude, duration, and morphology...
September 26, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28947359/pre-operative-duplex-ultrasonography-in-arteriovenous-fistula-creation-intra-and-inter-observer-agreement
#15
Niek Zonnebeld, Tommy M G Maas, Wouter Huberts, Magda M van Loon, Tammo Delhaas, Jan H M Tordoir
OBJECTIVE: Although clinical guidelines on arteriovenous fistula (AVF) creation advocate minimum luminal arterial and venous diameters, assessed by duplex ultrasonography (DUS), the clinical value of routine DUS examination is under debate. DUS might be an insufficiently repeatable and/or reproducible imaging modality because of its operator dependency. The present study aimed to assess intra- and inter-observer agreement of DUS examination in support of AVF surgery planning. METHODS: Ten end stage renal disease patients were included, to assess intra- and inter-observer agreement of pre-operative DUS measurements...
September 22, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28937545/non-contrast-pseudo-continuous-arterial-spin-labeling-and-accelerated-3-dimensional-radial-acquisition-intracranial-3-dimensional-magnetic-resonance-angiography-for-the-detection-and-classification-of-intracranial-arteriovenous-shunts
#16
Tilman Schubert, Zachary Clark, Carolina Sandoval-Garcia, Ryan Zea, Oliver Wieben, Huimin Wu, Patrick A Turski, Kevin M Johnson
OBJECTIVES: The aim of this study was to assess the sensitivity and specificity of pseudo-continuous arterial spin labeling (PCASL) magnetic resonance angiography (MRA) with 3-dimensional (3D) radial acquisition for the detection of intracranial arteriovenous (AV) shunts. MATERIALS AND METHODS: A total of 32 patients who underwent PCASL-MRA, clinical magnetic resonance imaging (MRI)/MRA exam, and digital subtraction angiography (DSA) were included in this retrospective analysis...
September 20, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28937062/cryotherapy-intervention-in-relieving-arteriovenous-fistula-cannulation-related-pain-among-hemodialysis-patients-at-the-king-khalid-hospital-tabuk-kingdom-of-saudi-arabia
#17
Hamad S Al Amer, Wireen Leila Dator, Hamzeh Y Abunab, Mohammad Mari
Pain during arteriovenous fistula (AVF) cannulation remains a common problem in hemodialysis (HD) patients that leads to noncompliance to lifetime maintenance HD. This study was performed to determine the effect of cryotherapy on reducing pain during AVF cannulation among HD patients in the King Khalid Hospital, Tabuk, Kingdom of Saudi Arabia. This is an experimental study which included 62 patients undergoing HD through an AVF. Randomization was used to assign the patients into the experimental (received cryotherapy) and control (no cryotherapy) groups...
September 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28930854/a-female-patient-with-hypokalaemia-induced-j-wave-syndrome-an-unusual-case-report
#18
Aqian Wang, Xiang Li, Muhammad Nabeel Dookhun, Tiancheng Zhang, Ping Xie, Yunshan Cao
RATIONALE: Prominent J waves can be seen in life-threatening cardiac arrhythmias such as Brugada syndrome, early repolarization syndrome, and ventricular fibrillation. We herein present an unusual case report of hypokalemia-induced J wave syndrome and ST (a part of ECG) segment elevation. PATIENTS CONCERNS: A 52-year-old woman with chief complaints of chest pain for 2 hours and diarrhea showed a marked hypokalemia (2.8 mmol/L) and slightly elevated creatine kinase-MB (CK-MB) (57...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930719/vascular-access-placement-order-and-outcomes-in-hemodialysis-patients-a-longitudinal-study
#19
Mariana Murea, W Mark Brown, Jasmin Divers, Shahriar Moossavi, Todd W Robinson, Benjamin Bagwell, John M Burkart, Barry I Freedman
BACKGROUND: Arteriovenous accesses (AVA) in patients performing hemodialysis (HD) are labeled "permanent" for AV fistulas (AVF) or grafts (AVG) and "temporary" for tunneled central venous catheters (TCVC). Durability and outcomes of permanent vascular accesses based on the sequence in which they were placed or used receives little attention. This study analyzed longitudinal transitions between TCVC-based and AVA-based HD outcomes according to the order of placement. METHODS: All 391 patients initiating chronic HD via a TCVC between 2012 and 2013 at 12 outpatient academic dialysis units were included in this study...
September 21, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28927950/kinect-based-real-time-audiovisual-feedback-device-improves-cardiopulmonary-resuscitation-quality-of-lower-body-weight-rescuers
#20
Jen-Chun Wang, Shih-Hung Tsai, Ying-Hsin Chen, Yu-Long Chen, Shi-Jye Chu, Wen-I Liao
BACKGROUND: Chest compression (CC) quality is associated with rescuer posture and body weight. We designed a Kinect module-based real-time audiovisual feedback (AVF) device to investigate the relationship between rescuer posture, body weight, and CC quality. METHODS: A total of 100 healthcare professionals were enrolled as participants in this randomized trial. A Kinect-based sensor system was used to monitor the depth and rate of CC and provide further real-time feedback...
September 15, 2017: American Journal of Emergency Medicine
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