01 September 2005
Atropine aborts bradycardic effect of endotracheally administered vasopressin.Ori Efrati, Dalit Modan-Moses, Ron Ben-Abraham, Haim Bibi, Gideon Paret
Med Sci Monit 2005; 11(9): CR410-414 :: ID: 428447
Background: Vasopressin is an alternative drug to adrenaline in intractableventricular fibrillation. However, vasopressin can cause significant bradycardia, resulting in reducedcardiac output. We investigated whether pre-treatment with atropine abrogates vasopressin-induced bradycardiain a beating-heart canine model. Material/Methods: Five adult mongrel dogs received endotracheal vasopressin(1.0 U/kg) with or without endotracheal atropine (0.02 mg/kg) or a placebo (10 ml saline) after beinganesthetized and ventilated. Hemodynamic variables and arterial blood gases were determined. Each dog(studied 3 times, one week apart) served as its own control. Results: Endotracheal vasopressin producedearly and significant (p
Keywords: Atropine - pharmacology, Administration, Inhalation, Blood Pressure - drug effects, Bradycardia - prevention & control, Dogs, Heart Rate - drug effects, Intubation, Intratracheal, Vasopressins - administration & dosage
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