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Cisatracurium- and rocuronium-associated residual neuromuscular dysfunction under intraoperative neuromuscular monitoring and postoperative neostigmine reversal: a single-blind randomized trial.

Abstract：

BACKGROUND:Postoperative residual neuromuscular blockade (RNMB) is a common complication in the postanesthesia care unit (PACU), but also one of the most controversial issues. Many studies and trials demonstrated that some methods and techniques can reduce the incidence and the extent of the phenomenon. STUDY OBJECTIVE:To determine the incidence of RNMB in the PACU at standardized times after extubation with the implementation of a protocol of careful neuromuscular blockade management. DESIGN:Randomized, single-blinded controlled clinical trial. SETTING:Operating room and PACU. PATIENTS:A total of 120 patients of either sex with American Society of Anesthesiologists grades 1, 2, and 3, aged 18 to 80 years were scheduled to undergo elective abdominal surgical procedures lasting for at least 60 minutes. INTERVENTIONS:Patients were randomized to receive either cisatracurium (n=60) or rocuronium (n=60) at the time of intubation and during surgery. Every patient received quantitative neuromuscular monitoring during general anesthesia. On completion of surgery, patients were given neostigmine 0.05 mg kg-1. Patients were extubated at a train-of-four (TOF) ratio≥0.9. MEASUREMENTS:TOF measurements were performed 15, 30, and 60 minutes after extubation. Tolerability of neuromuscular monitoring was evaluated with a scale from 1 to 10 (with 1 meaning no discomfort at all and 10 meaning maximal discomfort or pain). RESULTS:Six, 11, and 14 patients (5.0%, 9.2%, and 11.7%) exhibited a TOF ratio <0.9 at 15, 30, and 60 minutes after extubation, respectively. No statistically significant difference in the postoperative RNMB between cisatracurium and rocuronium was found. The median tolerability score for neuromuscular monitoring was 3. CONCLUSION:Careful conduction, monitoring, and subsequent reversal of neuromuscular block may allow for obtaining considerably low incidence of residual neuromuscular block. However, our trial shows that some mid- and long-term cases of TOF ratios <0.9 can still occur, possibly jeopardizing the patients' postoperative recovery.

journal_name

J Clin Anesth

journal_title

Journal of clinical anesthesia

authors

Feltracco P,Tonetti T,Barbieri S,Frigo AC,Ori C

doi

10.1016/j.jclinane.2016.07.031

subject

Has Abstract

pub_date

2016-12-01 00:00:00

pages

198-204

eissn

0952-8180

issn

1873-4529

pii

S0952-8180(16)30426-3

journal_volume

pub_type

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Cisatracurium- and rocuronium-associated residual neuromuscular dysfunction under intraoperative neuromuscular monitoring and postoperative neostigmine reversal: a single-blind randomized trial.