Effects of xylazine and acetylpromazine upon induced ventricular fibrillation in dogs anesthetized with thiamylal and halothane.

摘要: Ventricular arryhythmias including ventricular fibrillation were produced with epinephrine in dogs induced to an anesthetic state thiamylal and maintained halothane. In given (premedicated) xylazine 20 minutes prior anesthesia, arrhythmias, fibrillation, much smaller doses of than nonpremedicated dogs. Dogs premedicated acetylpromazine anesthesia halothane displayed protection from epinephrine-induced arrhythmias. Caution is advised using the presence if be administered.