Acta anaesthesiologica Scandinavica · 2004
Effect of ephedrine on the onset time of succinylcholine.
Клиническое исследованиеСтатьяРандомизированное исследованиеНазвание и аннотация: Перевод в очереди
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Ganidagli S, Cengiz M, Baysal Z
Аннотация
BACKGROUND: The aim of this study was to evaluate the effect of ephedrine administered prior to induction of anaesthesia on the onset time of succinylcholine for endotracheal intubation.
METHODS: Patients were randomly assigned to receive intravenously (i.v.) either 70 microg kg(-1) of ephedrine (Group I; n = 25) or saline (Group II; n = 25) 3 min before induction of anaesthesia. Induction of anaesthesia was provided with propofol 2 mg kg(-1) plus remifentanil 1 microg kg(-1). Onset time and duration of muscle fasciculation and onset time of succinylcholine were recorded. Intubation was attempted after establishment of 100% thumb relaxation and difficulties were recorded. Heart rate, pulse oxymetry (SpO2) and mean arterial pressure (MAP) were also recorded.
RESULTS: The onset time of succinylcholine were significantly (P < 0.001) shorter in Group I (26 +/- 4 s), when compared with Group II (43 +/- 6 s). Patients in Group I were intubated at 49 +/- 7 s compared with 68 +/- 10 s in Group II. The score of intubation was similar in both groups. Duration of muscle fasciculation was longer in Group II. Heart rate and MAP increased significantly (P < 0.05) after ephedrine injection, compared with the baseline value in Group I.
CONCLUSIONS: The onset time of succinylcholine can be shortened with ephedrine pretreatment.
METHODS: Patients were randomly assigned to receive intravenously (i.v.) either 70 microg kg(-1) of ephedrine (Group I; n = 25) or saline (Group II; n = 25) 3 min before induction of anaesthesia. Induction of anaesthesia was provided with propofol 2 mg kg(-1) plus remifentanil 1 microg kg(-1). Onset time and duration of muscle fasciculation and onset time of succinylcholine were recorded. Intubation was attempted after establishment of 100% thumb relaxation and difficulties were recorded. Heart rate, pulse oxymetry (SpO2) and mean arterial pressure (MAP) were also recorded.
RESULTS: The onset time of succinylcholine were significantly (P < 0.001) shorter in Group I (26 +/- 4 s), when compared with Group II (43 +/- 6 s). Patients in Group I were intubated at 49 +/- 7 s compared with 68 +/- 10 s in Group II. The score of intubation was similar in both groups. Duration of muscle fasciculation was longer in Group II. Heart rate and MAP increased significantly (P < 0.05) after ephedrine injection, compared with the baseline value in Group I.
CONCLUSIONS: The onset time of succinylcholine can be shortened with ephedrine pretreatment.