* Characteristic was measured at fascial opening, 5 min after administration of the study drug, and every 15 min thereafter until the time of fascial closure. Data were analyzed using the average measurement during this time period for each patient. † Data were missing for one patient in the placebo group and three patients in the vecuronium group. ‡ Ephedrine was administered in 34 placebo patients and 35 vecuronium patients. Total dose information was missing for 1 of the 35 vecuronium patients administered ephedrine. § Anesthesia time was defined from anesthetic induction to completion of skin closure. ∥ Emergence time was defined from the completion of skin closure to postanesthesia care unit admission and included the time needed for tracheal extubation and for survey radiology of the abdomen; data were missing from one placebo patient and three vecuronium patients.