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[Comparison of atracurium, cisatracurium and vecuronium during anaesthesia for laparoscopic surgery].

Author(s): Pasko-Majewska M, Owczuk R, Wujtewicz M

Affiliation(s): Klinika Anestezjologii i Intensywnej Terapii, Uniwersytet Medyczny w Gdansku.

Publication date & source: 2011-01, Anestezjol Intens Ter., 43(1):9-13.

Publication type: English Abstract; Randomized Controlled Trial

BACKGROUND: The aim of the study was to compare the intubating conditions, onset time, and duration of action of atracurium, cisatracurium, and vecuronium, when used for muscle relaxation in laparoscopic surgery with carbon dioxide inflation. In trying to find an "ideal" relaxant we compared the relative potency of these drugs, and also measured pH, PaCO2 and skin temperature. METHODS: Ninety-five ASA I and II patients were randomly allocated to three groups, to receive atracurium (I), cisatracurium (II), or vecuronium (III), during propofol/fentanyl anaesthesia. Neuromuscular transmission was monitored using accelerography (TOF GUARD). Patients were intubated after the injection of 0.5 mg kg-1 atracurium (I), 0.1 mg kg(-1) cisatracurium (II), or 0.1 mg kg(-1) vecuronium (III). Muscle relaxation was maintained with incremental doses of 0.1 0.2 mg kg(-1) and 0.03 mg kg(-1) of the relaxants respectively, given after a second response to TOF stimulation was noted. Recovery time was defined as the time from a maximal block (TOF=0) to spontaneous recovery of TOF 75%. RESULTS: Conditions for performing tracheal intubation were noted to be excellent in groups I and III, and good in group II. The mean recovery time was significantly shorter in groups II and III, than in group I. No significant correlations were found between the duration of neuromuscular blockade and pH, PaCO2 or palm skin temperature. CONCLUSIONS: Vecuronium, besides providing excellent conditions for tracheal intubation, had the fastest onset time and optimal duration of action. We found the drug to be the most suitable for laparoscopic surgery.

Page last updated: 2011-12-09

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