[Optimum intubating dose of rocuronium for short duration surgery in adult patients].
BACKGROUND
The aim of this study was to examine optimum intubating dose of rocuronium in adult patients who had been scheduled for short duration surgery.


METHODS
Thirty patients were randomly assigned to receive rocuronium 0.4 mg x kg(-1), 0.5 mg x kg(-1) or 0.6 mg x kg(-1) during induction with propofol and fentanyl. Immediately after the adduction of thumb to the ulnar nerve stimulation could not be visually observed, the patients were intubated tracheally and the intubating conditions were evaluated. Thereafter, time to recover to train-of-four (TOF) counts of 4 was recorded during sevoflurane and nitrous oxide anesthesia.


RESULTS
Intubating conditions after rocuronium 0.5 and 0.6 mg x kg(-1) were all graded either excellent or good. In contrast, inadequate conditions for safe and easy tracheal intubation were observed in 60% of the patients receiving 0.4 mg x kg(-1). Time to spontaneous recover to the TOF counts of 4 correlated with the intubating doses of rocuronium.


CONCLUSIONS
For short duration surgeries, rocuronium 0.5 mg x kg(-1) was appropriate to perform safe tracheal intubation and minimize duration of action of rocuronium.
Isaka
Tomomi
T
Department of Anesthesiology, Surugadai Nihon University Hospital, Tokyo 101-8309.
Suzuki
Takahira
T
Mizutani
Hitoshi
H
Fukano
Naoko
N
Saeki
Shigeru
S
Ogawa
Setsuro
S
D000328:Adult; D000368:Aged; D000732:Androstanols / Q000008:administration & dosage*; D000768:Anesthesia, General; D005260:Female; D005283:Fentanyl; D006801:Humans; D007442:Intubation, Intratracheal / Q000379:methods*; D007830:Larynx / Q000601:surgery; D008297:Male; D008866:Microsurgery; D008875:Middle Aged; D003473:Neuromuscular Nondepolarizing Agents / Q000008:administration & dosage*; D015742:Propofol; D000077123:Rocuronium; D013997:Time Factors
D000732:Androstanols; D003473:Neuromuscular Nondepolarizing Agents; D005283:Fentanyl; D000077123:Rocuronium; D015742:Propofol