Indian Journal of Medical Research

: 2019  |  Volume : 149  |  Issue : 3  |  Page : 376--383

Digital pressure in haemodialysis patients with brachial arteriovenous fistula

Alexandru Oprea1, Adrian Molnar1, Traian Scridon1, Petru Adrian Mircea2 
1 Department of Cardiovascular Surgery, “Niculae Stancioiu” Heart Institute, Cluj-Napoca, Romania
2 Department of Gastroenterology, Emergency Clinical County Hospital, University of Medicine & Pharmacy “Iuliu Hatieganu”, Cluj-Napoca, Romania

Correspondence Address:
Dr Adrian Molnar
19-21 Motilor Street, 400001, Cluj-Napoca, Romania

Background & objectives: The pathophysiological mechanisms involved in distal pressure changes following arteriovenous fistula (AVF) creation in patients with end-stage renal disease (ESRD) are not completely understood. This study was aimed to assess digital pressure changes post-AVF creation and to identify the factors that might influence these changes in ESRD patients. Methods: In this prospective study, 41 patients with ESRD underwent AVF creation. Basal digital pressure (BDP), digital brachial index (DBI), calcium, phosphorus and blood urea levels were assessed preoperatively. BDP, DBI, vein and artery diameters, and AVF blood flow were also evaluated at one and two month(s) post-AVF creation. Results: Mean BDP significantly decreased from 131.64±25.86 mmHg (baseline) to 93.15±32.14 and 94.53±32.90 mmHg at one and two months post-AVF creation, respectively (P <0.001). Mean DBI significantly decreased one month post-AVF creation versus baseline (0.70±0.18 vs. 0.89±0.17 mm, P <0.001) and remained similar at two versus one month(s) postoperatively (0.70±0.23 vs. 0.70±0.18 mm). At both postoperative timepoints, no correlation between DBI decrease and increased artery and vein diameters or fistula blood flow was observed. Mean DBI difference between patients with previous ipsilateral access versus those without was not significant from pre to one month postoperatively. No correlation was observed between baseline phosphorus, calcium and blood urea nitrogen and DBI changes. Interpretation & conclusions: Our findings suggest that decrease in distal pressure following AVF creation may not be influenced by the arterial remodelling degree, vein diameter or fistula flow. In uraemic patients, those with low calcium and/or increased phosphorus, no association between these parameters and DBI changes could be observed.

How to cite this article:
Oprea A, Molnar A, Scridon T, Mircea PA. Digital pressure in haemodialysis patients with brachial arteriovenous fistula.Indian J Med Res 2019;149:376-383

How to cite this URL:
Oprea A, Molnar A, Scridon T, Mircea PA. Digital pressure in haemodialysis patients with brachial arteriovenous fistula. Indian J Med Res [serial online] 2019 [cited 2020 Nov 23 ];149:376-383
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