scholarly journals The lesion-slip phenomenon in vascular access stenosis

2020 ◽  
Vol 53 (1) ◽  
pp. 7-14
Author(s):  
Yasuki Motomiya ◽  
Takehisa Nojima
Keyword(s):  
Vascular Access ◽  
Slip Phenomenon ◽  
Vascular Access Stenosis

Determination of Vascular Access Stenosis Location and Severity by Multi-domain Analysis of Blood Sounds

2021 ◽  
pp. 161-194
Author(s):  
Steve J. A. Majerus ◽  
Rohan Sinha ◽  
Binit Panda ◽  
Hossein Miri Lavasani
Keyword(s):  
Vascular Access ◽  
Domain Analysis ◽  
Vascular Access Stenosis

Standard Procedures of Endovascular Treatment for Vascular Access Stenosis in our Facility – Clinical Usefulness of Ultrasonography

2015 ◽  
Vol 16 (10_suppl) ◽  
pp. S34-S37 ◽  
Author(s):  
Takashi Sato ◽  
Masato Tsuboi ◽  
Takeshi Onogi ◽  
Naofumi Miwa ◽  
Hiroshi Sakurai ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Vascular Access ◽  
Clinical Usefulness ◽  
Standard Procedures ◽  
Vascular Access Stenosis

Five Years of Vascular Access Stenosis Surveillance by Blood Flow Rate Measurements during Hemodialysis Using the Delta-H Method

2012 ◽  
Vol 13 (3) ◽  
pp. 321-328 ◽  
Author(s):  
Ramón Roca-Tey ◽  
Rosa Samon ◽  
Omar Ibrik ◽  
Empar Roda ◽  
Juan Carlos González-Oliva ◽  
...  
Keyword(s):  
Blood Flow ◽  
Flow Rate ◽  
Vascular Access ◽  
Blood Flow Rate ◽  
Vascular Access Stenosis

scholarly journals Efficacy of SMART Stent Placement for Salvage Angioplasty in Hemodialysis Patients with Recurrent Vascular Access Stenosis

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Shingo Hatakeyama ◽  
Terumasa Toikawa ◽  
Akiko Okamoto ◽  
Hayato Yamamoto ◽  
Kengo Imanishi ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Vascular Access ◽  
Major Complication ◽  
Hemodialysis Patients ◽  
Primary Patency ◽  
Secondary Patency ◽  
Kaplan Meier ◽  
Short Period ◽  
Significant Difference ◽  
Vascular Access Stenosis

Vascular access stenosis is a major complication in hemodialysis patients. We prospectively observed 50 patients in whom 50 nitinol shape-memory alloy-recoverable technology (SMART) stents were used as salvage therapy for recurrent peripheral venous stenosis. Twenty-five stents each were deployed in native arteriovenous fistula (AVF) and synthetic arteriovenous polyurethane graft (AVG) cases. Vascular access patency rates were calculated by Kaplan-Meier analysis. The primary patency rates in AVFversusAVG at 3, 6, and 12 months were 80.3%versus75.6%, 64.9%versus28.3%, and 32.3%versus18.9%, respectively. The secondary patency rates in AVFversusAVG at 3, 6, and 12 months were 88.5%versus75.5%, 82.6%versus61.8%, and 74.4%versus61.8%, respectively. Although there were no statistically significant difference in patency between AVF and AVG, AVG showed poor tendency in primary and secondary patency. The usefulness of SMART stents was limited in a short period of time in hemodialysis patients with recurrent vascular access stenosis.

scholarly journals Possible Roles of Periostin in the Formation of Hemodialysis Vascular Access Stenosis after Polytetrafluoroethylene Graft Implantation in Dogs

2020 ◽  
Vol 21 (9) ◽  
pp. 3251 ◽  
Author(s):  
Kenji Watase ◽  
Denan Jin ◽  
Kentaro Terai ◽  
Taketoshi Kanemiya ◽  
Hyogo Nakakura ◽  
...  
Keyword(s):  
Vascular Access ◽  
Transforming Growth Factor Beta ◽  
Transforming Growth Factor ◽  
Matricellular Protein ◽  
Ptfe Graft ◽  
Strong Positive Correlation ◽  
Hemodialysis Vascular Access ◽  
Graft Implantation ◽  
Tgf Β1 ◽  
Vascular Access Stenosis

Periostin, a recently found matricellular protein, has been implicated in neointima formation after balloon injury. However, the relationship between periostin and hyperplastic intima formation after PTFE graft implantation is unclear. Under mixed anesthesia, PTFE grafts were implanted between the canine carotid artery and jugular vein, and PTFE graft samples were harvested 1, 2, and 4 months after implantation. Intima formation started on the luminal surface of PTFE grafts at the venous anastomotic region 1 month after implantation. Thereafter, the increase in intimal volume was not only observed in the venous and arterial anastomotic regions, but also in the middle region of the PTFE grafts. In accordance with the increased intimal formation, time-dependent increases in mRNA expressions of periostin and transforming growth factor beta 1 (TGF-β1), as well as a strong positive correlation between periostin and TGF-β1, were observed. These findings suggest that periostin may play a very important role in the pathogenesis of hemodialysis vascular access stenosis through the acceleration of intimal formation. Thus, periostin may be a very important therapeutic target for the treatment of vascular access graft dysfunction in hemodialysis patients.

Vascular access stenosis: Comparison of arteriovenous grafts and fistulas

2004 ◽  
Vol 44 (5) ◽  
pp. 859-865 ◽  
Author(s):  
Ivan D. Maya ◽  
Rachel Oser ◽  
Souheil Saddekni ◽  
Jill Barker ◽  
Michael Allon
Keyword(s):  
Vascular Access ◽  
Arteriovenous Grafts ◽  
Vascular Access Stenosis
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