Prognostic value of intraoperative blood flow measurements in vascular access surgery

Nonmaturation of arm arteriovenous fistulas for hemodialysis access: A systematic review of risk factors and results of early treatment

“…So, one preclinical study finally remained (this is explained further subsequently). Seven pre-HRS studies, 10,33-38 six post-HRS studies, 11,[39][40][41][42][43] and one study that evaluated both preoperative and postoperative hemodynamic risk factors 44 were selected for final inclusion as well. Quality scores of these studies are reported in Table II. For each study, sample sizes, baseline characteristics (ie, potential confounders), nonmaturation prevalence, definitions of nonmaturation, and treatment successes, if applicable, are compiled in Table III.…”

“…For brachiocephalic AVFs, the postoperative cutoff was 280 mL/min at 10 minutes. 40 In a mixed population of brachiocephalic and radiocephalic AVFs measured 1 week after creation, the cutoff was set at 350 mL/min. 11 All in all, venous flow below cutoffs conferred an average estimated risk of 54%, an ER of 39% (95% CI, 28%-50%), and 3.5 times (95% CI, 2.6-4.8) more risk compared with patients with flows above the cutoff.…”

Ultrasound-guided infraclavicular brachial plexus block enhances postoperative blood flow in arteriovenous fistulas

“…3,4 When applied under ultrasound (US) guidance, infraclavicular brachial plexus block has both a low risk of complications and a high rate of success. 5 Although intraoperative US has been used to compare blood flow among various vascular access procedures, 6 no controlled studies have directly evaluated AVF flow in patients who have undergone infraclavicular brachial plexus block. The current prospective, randomized, observerblinded, and controlled study was designed to compare US-guided infraclavicular brachial plexus block and localinfiltration anesthesia by measuring their effect on radial artery and radiocephalic AVF blood flow in the early and late postoperative period.…”

Blood flow in free micro-vascular flaps

“…(186). The transit-time flowmeter has also been used to measure the blood flow and peripheral resistance in femorodistal and femoropopliteal reconstructions (90) and to evaluate different types of arteriovenous fistula in patients undergoing haemodialysis access surgery (66).…”