Duration of the action of rocuronium in patients with BMI of less than 25: An observational study

BACKGROUND The duration of rocuronium in patients with BMI more than 30 kg m−2 is prolonged. Whether the reverse is true when BMI is less than 18.5 kg m−2 is unclear. OBJECTIVE The objective of this study was to investigate whether a BMI less than 25 kg m−2 affects the duration of rocuronium in doses adjusted for actual body weight. DESIGN A prospective, observational, single-centre study. SETTING The operating room of a teaching hospital from 1 June 2008 to 30 June 2015. PATIENTS Thirty patients with American Society of Anesthesiologists physical status I or II who were scheduled to undergo elective surgery (BMI 

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