Is a double-injection technique superior to a single injection in posterior subgluteal sciatic nerve block?

Acta Anaesthesiologica Scandinavica
Manuel TaboadaPeter G Atanassoff

Abstract

Currently, no information is available on the effects of a double-injection technique on onset time and efficacy following subgluteal sciatic nerve blockade. We hypothesized that the success rate and time to onset of subgluteal nerve block following a double-injection technique would be superior to that after a single injection. Fifty ASA I or II patients undergoing foot or ankle surgery randomly received a single or double injection subgluteal sciatic nerve block. Group S (n=25) received a single injection of 30 ml of 0.75% ropivacaine to the sciatic nerve. In Group D (n = 25), 15 ml of the same solution was injected to each sciatic nerve component. Completion of sensory and motor blockade, and patient acceptance, was evaluated by a blinded anesthesiologist. Complete sensory and motor blockade of the foot was achieved faster with the double injection (7.4 [5.9-8.8] min and 12.3 [10.4-14.2] min, respectively) than with the single-injection technique (12.5 [10.7-14.3] min and 18.8 [16.7-21.0] min, respectively) (P<0.001 and P<0.001, respectively). Success rate and acceptance were similar in both groups. Severe or moderate discomfort during the procedure was less frequent after a single injection (P = 0.013). Both the single- and...Continue Reading

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Dec 25, 2003·Anesthesia and Analgesia·Manuel TaboadaPeter G Atanassoff

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Citations

Apr 3, 2007·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Gianluca CappelleriAndrea Casati
Nov 3, 2007·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·De Quang Hieu TranRoderick J Finlayson
Mar 5, 2009·Regional Anesthesia and Pain Medicine·Spencer S LiuJacques T Yadeau
Jun 22, 2005·Best Practice & Research. Clinical Anaesthesiology·Jose De AndrésMiguel Angel Reina
Jan 13, 2019·Regional Anesthesia and Pain Medicine·De Q TranJoseph M Neal

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