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https://www.readbyqxmd.com/read/27895880/comparison-of-open-cell-stent-and-closed-cell-stent-for-treatment-of-central-vein-stenosis-or-occlusion-in-hemodialysis-patients
#1
Chae Hoon Kang, Seung Boo Yang, Woong Hee Lee, Jae Hong Ahn, Dong Erk Goo, Nae Jin Han, Joon Young Ohm
BACKGROUND: Central vein stenosis or occlusion is a common complication that can lead to significant morbidity and dysfunction of access in the hemodialysis patient. More lesions can develop over time, and preserving access becomes a challenge as life expectancy of the hemodialysis patient increases. OBJECTIVES: The goal was to compare long-term results and determine the outcomes of open-cell stent versus closed-cell stent for central vein stenosis or occlusion in hemodialysis patients...
October 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27866966/complications-of-vascular-access-superior-vena-cava%C3%A2-syndrome
#2
Anil K Agarwal, Hooman Khabiri, Nabil J Haddad
Stenosis or occlusion of central veins in hemodialysis patients is common, especially with previous intravascular catheter or device use. Superior vena cava (SVC) obstruction is emerging as a frequent chronic complication of central vein cannulation that not only jeopardizes the availability of vascular access for hemodialysis, but can become a life-threatening emergency. Clinical features of SVC syndrome can be subtle or dramatic, including facial swelling and shortness of breath, which require expeditious attention and intervention...
November 17, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27789765/the-predictive-value-of-haemodynamic-parameters-for-outcome-of-deep-venous-reconstructions-in-patients-with-chronic-deep-vein-obstruction-a-systematic-review
#3
Rlm Kurstjens, Maf de Wolf, J Kleijnen, R de Graaf, Cha Wittens
OBJECTIVE: The aim of this study was to investigate the predictive value of haemodynamic parameters on success of stenting or bypass surgery in patients with non-thrombotic or post-thrombotic deep venous obstruction. METHODS: EMBASE, MEDLINE and trial registries were searched up to 5 February 2016. Studies needed to investigate stenting or bypass surgery in patients with post-thrombotic obstruction or stenting for non-thrombotic iliac vein compression. Haemodynamic data needed to be available with prognostic analysis for success of treatment...
October 27, 2016: Phlebology
https://www.readbyqxmd.com/read/27757189/diagnostic-value-of-computerized-tomography-venography-in-detecting-stenosis-and-occlusion-of-subclavian-vein-and-superior-vena-in-chronic-renal-failure-patients
#4
Banafsheh Bakhshoude, Hassan Ravari, Gholam Hosein Kazemzadeh, Masoud Pezeshki Rad
INTRODUCTION: Currently, venography is the standard diagnostic method to examine veins before implementing access, which is invasive in nature. Computerized tomography venography (CTV) can simultaneously indicate deep and superficial venous systems in the upper extremity and their relation to the surrounding anatomical structures; however, its diagnostic value in the detection of central venous disease has yet to be defined. The aim of this study was to determine the diagnostic value of CT venography compared to venography in the diagnosis of stenosis and the occlusion of subclavian veins and the superior vena in renal failure patients...
August 2016: Electronic Physician
https://www.readbyqxmd.com/read/27630890/all-that-glitters-is-not-gold-all-unilateral-oedema-is-not-dvt
#5
Ashwal Adamane Jayaram, Padmakumar Ramachandran, Tom Devasiya, Abdul Razak Uddina Kumeri, Umesh Pai
Innominate vein stenosis or thrombotic occlusion can occur in dialysis patients. Central vein stenosis is a common problem in patients on dialysis. Placement of a central vein catheter for dialysis access increases the risk of central vein stenosis. Central vein stenosis sometimes can jeopardize the arteriovenous fistula and arteriovenous graft in the ipsilateral extremity unless recognized early and treated. We describe three patients with left innominate vein stenosis who were known case of chronic kidney disease on haemodialysis and had a left brachio-cephalic fistula and presented with unilateral facial and upper limb oedema...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27588751/from-zero-to-hero-saving-lives-one-hero-at-a-time
#6
Dr Charlotte Ratcliff, Miss Monica Hansrani
INTRODUCTION: This case report intends to highlight the Haemodialysis Reliable Outflow (HeRO) graft as a potential long term option for ongoing dialysis in patients with central venous stenosis. PRESENTATION OF CASE: A 55year old patient, who developed end stage renal failure (ESRF) after chemotherapy treatment for breast cancer, presented at the limit of her dialysis access after a 15year haemodialysis history causing central vein stenosis. The patient was initially started on peritoneal dialysis but after repeated peritonitis was switched to haemodialysis...
2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27525493/management-of-innominate-vein-rupture-during-superior-vena-cava-angioplasty
#7
Joseph Kuhn, Ahmet Kilic, Erica Stein
Although vessel perforation rarely occurs during percutaneous transluminal angioplasty of a central venous stenosis, it can be a rapidly fatal complication when accompanied by pericardial tamponade. The present case report details our experience with this dangerous complication. It also highlights the risk factors for and the pathogenesis of central venous stenosis, the clinical findings associated with inadvertent vessel perforation during an intervention, and anesthetic management strategies for pericardial tamponade resulting from vessel perforation...
August 15, 2016: A & A Case Reports
https://www.readbyqxmd.com/read/27511766/relationship-of-retinal-vascular-caliber-variation-with-intracranial-arterial-stenosis
#8
Eun-Jung Rhee, Pil-Wook Chung, Tien Y Wong, Su Jeong Song
BACKGROUND & PURPOSE: To investigate the associations of retinal vessel parameters with intracranial arterial stenosis (ICAS) assessed by Transcranial Doppler ultrasonography. METHOD: Data on transcranial Doppler ultrasonography and quantitative retinal vessel parameters from 627 participants in a health screening program were included in this study. ICAS was defined as >50% intracranial arterial stenosis (ICAS) based on criteria modified from the stroke outcomes and neuroimaging of intracranial atherosclerosis (SONIA) trial assessed by transcranial Doppler (TCD) ultrasonography...
November 2016: Microvascular Research
https://www.readbyqxmd.com/read/27492146/central-venous-occlusion-in-the-hemodialysis-patient
#9
Vinay Narasimha Krishna, Joseph B Eason, Michael Allon
Central venous stenosis (CVS) is encountered frequently among hemodialysis patients. Prior ipsilateral central venous catheterization and cardiac rhythm device insertions are common risk factors, but CVS can also occur in the absence of this history. Chronic CVS can cause thrombosis with partial or complete occlusion of the central vein at the site of stenosis. CVS is frequently asymptomatic and identified as an incidental finding during imaging studies. Symptomatic CVS presents most commonly as an upper- or lower-extremity edema ipsilateral to the CVS...
November 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27434479/occult-central-venous-stenosis-leading-to-airway-obstruction-after-subtotal-parathyroidectomy
#10
Duncan A Meiklejohn, Dylan K Chan, M Lauren Lalakea
Subtotal parathyroidectomy may be indicated in patients with chronic renal failure and tertiary hyperparathyroidism, a population at increased risk for central venous stenosis (CVS) due to repeated vascular access. Here we report a case of complete upper airway obstruction precipitated by subtotal parathyroidectomy with ligation of anterior jugular vein collaterals in a patient with occult CVS. This case demonstrates a previously unreported risk of anterior neck surgery in patients with chronic renal failure...
July 2016: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/27423716/case-report-simultaneous-iliac-vein-bovine-pericardial-patch-venoplasty-and-creation-of-ptfe-lower-limb-av-fistula-graft-for-rescue-vascular-access
#11
Lewis Meecham, Owain Fisher, George Kirby, Richard Evans, Pauline Buxton, Jocelyn Legge, Sriram Rajagopalan, John Asquith, Arun Pherwani
PURPOSE: We present a case of external iliac vein patch venoplasty to accommodate rescue vascular access via a PTFE loop arterio-venous fistula Graft (AVG) for a patient with multiple central venous stenoses. METHODS: A 35 year old female with anti-glomerular basement membrane antibody disease required rescue vascular access for haemodialysis. Repeated occlusion and/or thrombosis of long term central venous access canulae, to facilitate dialysis, had caused stenosis of brachiocephalic veins; right external iliac vein and occlusion of the left common iliac vein...
July 13, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27235473/lower-extremity-permanent-dialysis-vascular-access
#12
REVIEW
Vishal B Parekh, Vandana D Niyyar, Tushar J Vachharajani
Hemodialysis remains the most commonly used RRT option around the world. Technological advances, superior access to care, and better quality of care have led to overall improvement in survival of patients on long-term hemodialysis. Maintaining a functioning upper extremity vascular access for a prolonged duration continues to remain a challenge for dialysis providers. Frequently encountered difficulties in clinical practice include (1) a high incidence of central venous catheter-related central vein stenosis and (2) limited options for creating a functioning upper extremity permanent arteriovenous access...
September 7, 2016: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/27210260/-application-of-curved-stapler-for-pulmonary-wedge-resection
#13
Takeshi Kawaguchi, Motoaki Yasukawa, Norikazu Kawai, Takashi Tojo
End stapler is one of the indispensable devices for pulmonary resections. Various surgical staplers are now available and appropriate types are selected to dissect pulmonary parenchyma, vessel, or bronchus. In this study, we retrospectively reviewed the patients who received pulmonary wedge resections using newly released curved stapler (Endo GIA Radial Reload with Tri-Staple technology). Between April 2013 and October 2014, 10 lesions from the 9 patients were resected using the curved staplers. The reasons for the application of the staplers were pleuro-pulmonary adhesion in 3 lesions and centrally location in 7 lesions...
April 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27194460/dilatation-of-the-spinal-epidural-venous-plexus-in-patients-with-prominent-epidural-fat
#14
Se K Park, In S Lee, You S Song, Jin Il Moon, Jong W Song, Hee Kang
OBJECTIVE: The purpose of this study was to evaluate the correlation between the dilatation of the spinal epidural venous plexus (SEVP) and the amount of epidural fat (EF). METHODS: Between January 2007 and January 2012, 116 patients with prominent EF and 116 control subjects without prominent EF were included in this study. On the lumbar MR images, we graded the amount of EF and counted the number of vertebrae to determine the longitudinal extent of the EF. We evaluated and classified the dilatation of the SEVP and the degree of central canal stenosis...
July 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27154160/comparison-of-radial-artery-and-saphenous-vein-graft-stenosis-more-than-5-years-after-coronary-artery-bypass-grafting
#15
Manabu Yamasaki, Saswata Deb, Hideki Tsubota, Fuad Moussa, Alex Kiss, Eric A Cohen, Sam Radhakrishnan, James Dubbin, Dennis Ko, Leonard Schwartz, Stephen E Fremes
BACKGROUND: Graft stenosis may be associated with future graft failure. The purpose of this investigation was to compare graft stenosis between radial artery (RA) grafts and saphenous vein grafts (SVGs) at least 5 years postoperatively using the multicenter Radial Artery Patency Study (RAPS) data. METHODS: Two hundred thirty-four patients underwent late invasive angiography after coronary artery bypass operations. The study population consists of 163 patients with thrombolysis in myocardial infarction (TIMI) 3 flow of both the RA graft and study SVGs...
September 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27082708/we-underutilize-the-leg-graft
#16
Michael Allon
Once hemodialysis patients have exhausted all option for a permanent vascular access in both upper extremities, they are often relegated at many dialysis centers to permanent catheter dependence with all its attendant complications, including infections, frequent dysfunction, and central vein stenosis. This commentary makes the case that thigh grafts are a far superior alternative to dialysis catheters in many of these patients. Technical graft failure may occur in some patients due to severe femoral artery calcification, but screening for calcification by ultrasound or computerized tomography can reduce the likelihood of a technical failure...
July 2016: Seminars in Dialysis
https://www.readbyqxmd.com/read/27079669/case-report-unilateral-conduction-hearing-loss-due-to-central-venous-occlusion
#17
Phillip Ribeiro, Swetal Patel, Rizwan A Qazi
Central venous stenosis is a well-known complication in patients with vascular access for hemodialysis. We report two cases involving patients on hemodialysis with arteriovenous fistulas who developed reversible unilateral conductive hearing loss secondary to critical stenosis of central veins draining the arteriovenous dialysis access. A proposed mechanism for the patients' reversible unilateral hearing loss is pterygoid venous plexus congestion leading to decreased Eustachian tube patency. Endovascular therapy was conducted to treat the stenosis and the hearing loss of both patients was returned to near normal after successful central venous angioplasty...
2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27056032/cardiac-veins-collateral-venous-drainage-pathways-in-chronic-hemodialysis-patients
#18
Evrim Ozmen, Oktay Algin
Venous anomalies are diagnostic and therapeutic challenges. Subclavian or superior vena cava stenosis can be developed and venous return can be achieved via cardiac veins and coronary sinus in patients with central venous catheter for long-term hemodialysis. These types of abnormalities are not extremely rare especially in patients with a history of central venous catheter placement. Detection of these anomalies and subclavian vein stenosis before the surgical creation of hemodialysis fistulae or tunneled central venous catheter placement may prevent unnecessary interventions in those patients...
2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27056027/central-venous-access-through-a-persistent-left-superior-vena-cava-a-case-series
#19
Qiao Zhou, Shashi Murthy, Alex Pattison, Gabriel Werder
A persistent left superior vena cava (PLSVC) is a rare, under-recognized congenital anomaly. The PLSVC is incidentally discovered during central venous access procedures when access is obtained from the left internal jugular vein. The vast majority of PLSVCs drain into the right atrium; however, it is critical to recognize a PLSVC that drains into the left atrium as it can predispose to systemic dispersion of emboli through bypassing the lungs. Additionally, PLSVC catheterization has also been previously reported to be associated with cardiac dysrhythmias, venous stenosis, coronary sinus thrombosis, cardiac tamponade, and cardiac arrest...
2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27020172/complications-of-permanent-hemodialysis-catheter-placement-need-for-better-pre-implantation-algorithm
#20
Vedran Premuzic, Ranko Smiljanic, Drazen Perkov, Bruna Brunetta Gavranic, Boris Tomasevic, Bojan Jelakovic
There is a correlation between central venous cannulation and the development of central venous stenosis. Minor retrosternal vein lesions can be easily missed. Computerized tomographic (CT) venography is the diagnostic procedure of choice. The aim of this study was to examine the complications after catheter implantation in patients with prior permanent catheter placement and to evaluate present diagnostic procedures performed prior to choosing permanent access site in order to reduce possible complications after catheter placement...
August 2016: Therapeutic Apheresis and Dialysis
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