[Effects of penehyclidine hydrochloride or atropine combined with neostigmine for antagonizing residual neuromuscular block on patient's hemodynamics].

Objective: To investigate the effects of penehyclidine hydrochloride(PH)/atropine combined with neostigmine for antagonizing residual neuromuscular block on the hemodynamics.

Methods: Eighty patients with elective upper abdominal surgery were randomized equally into PH group and atropine group. Five minutes after the completion of surgery, PH 0.02 mg/kg (in PH group) or atropine 0.02 mg/kg (in atropine group) in combination with neostigime 0.03 mg/kg were given intravenously to reverse the residual neuromuscular block. The heart rate (HR), mean arterial pressure (MAP) and end-tidal CO(2) pressure (P(ET)CO(2)) were recorded 5 min before anesthesia induction, 1 min before injection and 2, 5, 10, and 15 min after injection, respectively.

Results: During the investigation, HR in PH group did not undergo conspicuous changes (P>0.05). HR after the injection was markedly faster than that before the injection in atropine group (P<0.01) and did not recover till 15 min after the injection (P>0.05). MAP and P(ET)CO(2) showed no evident changes and no significant difference was observed between the two groups during the investigation (P>0.05).

Conclusion: Compared with atropine, PH does not obviously affect HR and BP, but atropine may accelerate HR.