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 ORIGINAL ARTICLE
Year : 2017  |  Volume : 27  |  Issue : 3  |  Page : 199-204

Prosthetic hemodialysis access-induced distal hand ischemia and its contributors in diabetics


1 Department of Vascular Surgery and Trauma and Transplantation, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
2 Department of Surgery, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
3 Department of Radiology, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

Correspondence Address:
S M Alamshah
Department of Vascular Surgery and Trauma and Transplantation, Golestan Hospital, Ahvaz
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-4065.202836

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Avoidance of hand ischemia in the construction of prosthetic access for hemodialysis in diabetics that have no suitable vein for arteriovenous fistula is appreciated. Taper type may be an appropriately matched conduit to prevent its occurrence. This is a prospective controlled trial of 38 selected diabetics requiring hemodialysis, who were referred to our clinic during a period of 6 months. The aim of the study was to evaluate the efficacy of tapered grafts in preventing distal hand hypoperfusion and determining its most likely contributors. In 18 intervening cases, taper 4 mm × 7 mm and in twenty cases (control group), standard 6 mm polytetrafluoroethylene as straight Brachial-Axillary access was used. Graft flow rates, artery and vein diameters, and mean arterial pressure were included for evaluation. Within the control group, 11 patients (55%) (7 cases Grade 1, 3 Grade 2, 1 Grade 3) and in intervening group, 2 cases (11%) (Grade 1, Grade 3) developed Steal syndrome. There was no significant difference in the mean flow rates (P = 0.82). Increased risk of distal hypoperfusion was observed in the control group when flow rates were more than 1000 ml/min. Arterial diameters (P = 0.011) and mean arterial pressure (P = 0.05) were found to be important contributing factors. Taper grafts causes reduced incidence of distal hand hypoperfusion. When artery diameter was <6 mm and mean arterial pressure lower than 100 mmHg and the index (brachial artery diameter × mean arterial pressure) was under 500, distal hand ischemia occurred in standard and tapper type. We therefore recommend selective usage of taper grafts in diabetics with diminished distal hand pulses, considering the contributing factors when fistula first is not feasible.






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Indian Journal of Nephrology
Published by Wolters Kluwer - Medknow
Online since 20th Sept '07