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Venous graft stents

Kumble S Madhusudhan, Nihar R Dash, Adil Afsan, Shivanand Gamanagatti, Deep N Srivastava, Arun K Gupta
Biliovenous fistula occurs due to development of a communication between hepatic duct and portal vein branches and is a rare complication of percutaneous transhepatic biliary drainage (PTBD). Most of them are self-limiting and only occasionally they need interventional management. Placement of biliary stent graft is a viable option. We present here a case of a 56-year-old male with carcinoma of gall bladder presenting with hemodynamic shock due to severe hemobilia after PTBD and treated successfully by biliary covered stent placement...
September 2016: Journal of Clinical and Experimental Hepatology
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
Abigail Falk, Ivan D Maya, Alexander S Yevzlin
PURPOSE: To assess the safety and efficacy of an expanded polytetrafluoroethylene stent graft versus balloon angioplasty for the treatment of in-stent restenosis in the venous outflow of hemodialysis access grafts and fistulae. MATERIALS AND METHODS: Two hundred seventy-five patients were randomized at 23 US sites to stent-graft placement or percutaneous transluminal angioplasty (PTA). Primary study endpoints were access circuit primary patency (ACPP) at 6 months and safety through 30 days; secondary endpoints were evaluated through 24 months...
October 2016: Journal of Vascular and Interventional Radiology: JVIR
Igor Banzic, Milos Brankovic, Živan Maksimović, Lazar Davidović, Miroslav Marković, Zoran Rančić
OBJECTIVES: Parkes Weber syndrome is a congenital vascular malformation which consists of capillary malformation, venous malformation, lymphatic malformation, and arteriovenous malformation. Although Parkes Weber syndrome is a clinically distinctive entity with serious complications, it is still frequently misdiagnosed as Klippel-Trenaunay syndrome that consists of the triad capillary malformation, venous malformation, and lymphatic malformation. METHODS: We performed a systematic review investigating clinical, diagnostic, and treatment modalities of Parkes Weber syndrome (PubMed/MEDLINE, Embase, and Cochrane databases)...
August 9, 2016: Phlebology
Gerald F Tuite, Carolyn M Carey, William W Nelson, Scott J Raffa, S Parrish Winesett
Profuse bleeding originating from an injured cerebral sinus can be a harrowing experience for any surgeon, particularly during an operation on a young child. Common surgical remedies include sinus ligation, primary repair, placement of a hemostatic plug, and patch or venous grafting that may require temporary stenting. In this paper the authors describe the use of a contoured bioresorbable plate to hold a hemostatic plug in place along a tear in the inferomedial portion of a relatively inaccessible part of the posterior segment of the superior sagittal sinus in an 11-kg infant undergoing hemispherotomy for epilepsy...
July 8, 2016: Journal of Neurosurgery. Pediatrics
Maheswaran Pitchaimuthu, Garrett R Roll, Zergham Zia, Simon Olliff, Homoyoon Mehrzad, James Hodson, Bridget K Gunson, M Thamara P R Perera, John R Isaac, Paolo Muiesan, Darius F Mirza, Hynek Mergental
Hepatic venous outflow obstruction (HVOO) is a rare complication after liver transplantation (LT) associated with significant morbidity and reduced graft survival. Endovascular intervention has become the first-line treatment for HVOO, but data on long-term outcomes are lacking. We have analysed outcomes after endovascular intervention for HVOO in 905 consecutive patients who received 965 full-size LT at our unit from January 2007 to June 2014. There were 27 (3%) patients who underwent hepatic venogram for suspected HVOO, with persistent ascites being the most common symptom triggering the investigation (n = 19, 70%)...
October 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
Thomas Vesely, William DaVanzo, Terry Behrend, Amy Dwyer, John Aruny
OBJECTIVE: To compare the results of stent graft placement to balloon angioplasty for the treatment of stenosis at the venous anastomosis of failing and thrombosed prosthetic hemodialysis grafts. METHODS: This prospective, multicenter trial included 293 patients randomized (1:1) to the stent graft (n = 145) or balloon angioplasty (n = 148) group for treatment of stenosis at the venous anastomosis of dysfunctional (n = 164) or thrombosed (n = 129) hemodialysis grafts...
June 25, 2016: Journal of Vascular Surgery
B M Doorschodt, H L Brom, A C de Vries, C Meers, M J Jacobs
OBJECTIVE: The aim of the study was to evaluate the feasibility and mid-term biological behavior of the novel customized aortic repair (CAR) method for endovascular aneurysm treatment. METHODS: CAR consists of exclusion of an aneurysm from the circulation using a custom-designed dog bone-shaped balloon, followed by aneurysm sac filling with an in situ curing polymer. After curing and balloon deflation, the circulation is restored through a patent cast neolumen. A liquid two-component polymer was injected via a small bore catheter under X-ray control into a surgically created aneurysm...
August 2016: European Journal of Vascular and Endovascular Surgery
Éva Pósfai, Imelda Marton, Zita Borbényi, Attila Nemes
OBJECTIVE: Detailed analyses of clinical characteristics of myocardial infarction (MI) as an essential thrombocythemia (ET)- and polycythemia vera (PV)-related complication have been so far presented mostly as case reports. Therefore, the aim of this retrospective analysis was to evaluate the main cardiological and hematological characteristics for better understanding myocardial complications in ET/PV. METHODS: A retrospective analysis was carried out involving 263 patients diagnosed with ET or PV (155/108) between 1998 and 2014...
June 2016: Anatolian Journal of Cardiology
Narayan Karunanithy, Irene Rebollo Mesa, Anthony Dorling, Francis Calder, Konstantinos Katsanos, Vikki Semik, Emily Robinson, Janet Peacock, Neelanjan Das, Colin Forman, Sarah Lawman, Kate Steiner, C Jason Wilkins, Michael G Robson
BACKGROUND: The initial therapy for a stenosis in an arteriovenous fistula used for haemodialysis is radiological balloon dilatation or angioplasty. The benefit of angioplasty is often short-lived, intervention-free survival is reported to be 40-50 % at 1 year. Previous small studies and observational data suggest that paclitaxel-coated balloons may be of benefit in improving outcomes after fistuloplasty of stenotic arteriovenous fistulae. METHODS/DESIGN: We have designed a multicentre, double-blind randomised controlled trial to test the superiority of paclitaxel-coated balloons for preventing restenosis after fistuloplasty in patients with a native arteriovenous fistula...
2016: Trials
Haruhiko Kondoh, Hisashi Satoh, Takashi Daimon, Yuuya Tauchi, Jumpei Yamamoto, Kazuo Abe, Hikaru Matsuda
OBJECTIVE: The number of older patients with acute aortic dissection type A (AAD [A]) is increasing as the population ages. We evaluated clinical outcomes for octogenarians with AAD (A) treated surgically at our hospital. Whenever possible, we limited the replacement site of the ascending aorta to the supracoronary and hemiarch. METHODS: Of 436 patients with AAD (A) seen in our hospital emergency room between April 2001 and August 2015, 90 were octogenarians. Surgery was performed using a simple cardiopulmonary bypass established through the right femoral artery and venous cannulation, and distal anastomosis was performed under deep hypothermic circulatory arrest at 20°C...
August 2016: Journal of Thoracic and Cardiovascular Surgery
Chih-Hsien Lee
An arteriovenous fistula (AVF) is an abnormal connection between an artery and a vein. Double-lumen catheters are widely used for gaining temporary access in patients requiring acute hemodialysis (HD). Several complications are associated with the insertion of these catheters, including bleeding, infection, arterial injuries, and deep venous thrombosis. An iatrogenic AVF is a rare and severe complication following catheterization for temporary HD. Here, we report the case of a patient who developed an iatrogenic AVF following catheterization for acute HD resulting in acute bleeding...
May 5, 2016: Hemodialysis International
C M Wendl, H Henkes, R Martinez Moreno, O Ganslandt, H Bäzner, M Aguilar Pérez
PURPOSE: Retrospective evaluation of our experience with the use of flow diverters (FD) for the endovascular treatment of direct carotid-cavernous sinus fistulae (diCCF). METHODS: Between 2011 and 2015, 14 consecutive patients with 14 diCCF were treated with FD alone or in combination with other implants in a single institution. RESULTS: A total of 21 sessions were performed in 14 patients. FD placement was technically successful in all cases without an adverse event...
April 29, 2016: Clinical Neuroradiology
Eunyoung Kim, Sung Won Lee, Woo Hyeon Kim, Si Hyun Bae, Nam Ik Han, Jung Suk Oh, Ho Jong Chun, Hae Giu Lee
A 43-year-old man with liver cirrhosis received transjugular intrahepatic portosystemic shunt (TIPS) for the treatment of recurrent variceal bleeding and F3 esophageal varices. During routine follow up liver ultrasound examination, six months after the implantation, TIPS occlusion was suspected and TIPS revision was performed. During the revision, moderate to severe stenosis at the hepatic venous segment of the tract and a total occlusion at the parenchymal segment of TIPS tract near the portal vein with biliary-TIPS fistula were identified with a clear visualization of the common bile duct...
January 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
Pietro Quaretti, Franco Galli, Lorenzo Paolo Moramarco, Riccardo Corti, Giovanni Leati, Ilaria Fiorina, Carmine Tinelli, Giovanni Montagna, Marcello Maestri
PURPOSE: To compare patency in dialysis patients following different endovascular treatment of symptomatic central venous stenosis. MATERIALS AND METHODS: A 10-year retrospective evaluation in 70 patients (32 men) dialyzing through vascular access (33, 47%) and tunneled catheters (37, 53%) was made. Three cohorts were compared: angioplasty alone (22), bare metal stent (28), and stent graft (20). Patencies were described with Kaplan-Meier method, and Cox uni- and multivariate models were analyzed to find factors associated...
May 2016: Vascular and Endovascular Surgery
Thomas Pfammatter, Markus Götschi, Gilbert Puippe
Based on two cases presented and our recently published experience, we think that for the majority of patients with central venous catheters misplaced in the vertebral artery, stent graft placement is the best bailout option.
2016: VASA. Zeitschrift Für Gefässkrankheiten
Joo Yeon Jang, Ung Bae Jeon, Jung Hwan Park, Tae Un Kim, Jun Woo Lee, Chong Woo Chu, Je Ho Ryu
BACKGROUND: Hepatic venous outflow is important for graft survival in living donor liver transplantation (LDLT). If hepatic venous outflow obstruction occurs, hepatic vein stenting is considered to restore the patency. PURPOSE: To retrospectively evaluate the efficacy and patency of primary hepatic vein stenting for hepatic venous outflow obstruction (HVOO) after LDLT. MATERIAL AND METHODS: Percutaneous interventions, including hepatic vein stent placement with or without balloon angioplasty, were performed in 21 patients who had undergone LDLT and had HVOO confirmed through hepatic venography or manometry, including the patients who had a structural abnormality...
March 23, 2016: Acta Radiologica
Darshan Patel, Charles E Ray, R Peter Lokken, James T Bui, Andrew J Lipnik, Ron C Gaba
Surgically placed dialysis access is an important component of dialysis replacement therapy. The vast majority of patients undergoing dialysis will have surgically placed accesses at some point in the course of their disease, and for many patients these accesses may represent their definitive renal replacement option. Most, if not all, arteriovenous fistulae and grafts will require interventions at some point in time. Percutaneous angioplasty is the typical first treatment performed for venous stenoses, with stents and stent grafts being reserved for patients in whom angioplasty and surgical options are exhausted...
March 2016: Seminars in Interventional Radiology
Gordon McLennan
Dialysis access failure is a major cause of mortality and morbidity among dialysis patients. Preservation of access is critical to maintaining hemostasis, avoiding uremia, and managing the complications of kidney failure. While angioplasty remains the most common method of managing arteriovenous (AV) access stenoses, the use of stents and stent grafts to manage venous stenoses associated with AV access has become more prominent. There have been several prospective randomized trials that have demonstrated the benefit of these devices in maintaining the target lesion patency of the treated areas...
March 2016: Seminars in Interventional Radiology
Richard R Heuser
The introduction of easily deployed covered stents has made PCI safer. The homemade venous and PTFE covered stent were effective but not practical for sealing perforations. The novel pericardial covered stent graft goes back to a more natural covering and is more easily deployed.
March 2016: Catheterization and Cardiovascular Interventions
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