Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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Κυριακή 8 Απριλίου 2018

Perineural Versus Systemic Dexamethasone in Front-Foot Surgery Under Ankle Block: A Randomized Double-Blind Study

Background and Objectives Among the different adjuvants, dexamethasone is one of the most accepted to prolong the effect of local anesthetics. This study aims to determine the superiority of perineural over systemic dexamethasone administration after a single-shot ankle block in metatarsal osteotomy. Methods We performed a prospective, double-blind, randomized study. A total of 100 patients presenting for metatarsal osteotomy with an ankle block were randomized into 2 groups: 30 mL ropivacaine 0.375% + perineural dexamethasone 4 mg (1 mL) + 2.5 mL of systemic saline solution (PNDex group, n = 50) and 30 mL ropivacaine 0.375% + 1 mL of perineural saline solution + intravenous dexamethasone 10 mg (2.5 mL) (IVDex group, n = 50). The primary end point was the duration of analgesia defined as the time between the performance of the ankle block and the first administration of rescue analgesia with tramadol. Results Time period to first rescue analgesia with tramadol was similar in the IVDex group and the PNDex group. Data are expressed as mean (SD) or median (range). Duration of analgesia was 23.2 (9.5) hours in the IVDex group and 19 (8.2) hours in the PNDex group (P = 0.4). Consumption of tramadol during the first 48 hours was 0 mg (0–150 mg) in the IVDex group versus 0 mg (0–250 mg) in the PNDex group (P = 0.59). Four (8%) and 12 (24%) patients reported nausea or vomiting in the IVDex group and the PNDex group, respectively (P = 0.03). Conclusions In front-foot surgery, perineural and systemic administrations of dexamethasone are equivalent for postoperative pain relief when used as an adjuvant to ropivacaine ankle block. Clinical Trial Registration This study was registered at ClinicalTrials.gov, identifier NCT02904538. Address correspondence to: Philippe Marty, MD, Department of Anesthesia, Clinique Médipôle Garonne, 31036, Toulouse, France (e-mail: philippemarty@hotmail.com). Accepted for publication November 20, 2017. The authors declare no conflict of interest. Support was provided solely from institutional and department sources from Department of Anesthesiology, Clinique Médipôle Garonne, Toulouse, France. This work should be attributed to the Department of Anesthesiology, Clinique Médipôle Garonne, Toulouse, France. Authors' contributions: O.R., B.Basset, C.V., and M.C.M. performed all regional anesthesia. P.M. and F.F. wrote the manuscript. C.M., M.M., and M.C. participated in the design of the study. B.Bataille performed the statistical analysis. A.D. participated in its design and coordination and helped to draft the manuscript. All authors read and approved the final manuscript. Copyright © 2018 by American Society of Regional Anesthesia and Pain Medicine.

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