Effects of atrioventricular block on ventricular fibrillation threshold in dog
نویسندگان
چکیده
منابع مشابه
Protective effects of simvastatin on atrioventricular node during simulated experimental atrial fibrillation in vitro
Introduction: Recent evidence has indicated that statins can reduce the incidence of both supraventricular and ventricular arrhythmias with various mechanisms. The primary goal of the present study was to determine direct protective role of simvastatin in modifying concealed conduction and the zone of concealment in a simulated model of atrial fibrillation (AF) in an isolated atrioventricula...
متن کاملConcurrent atrioventricular block, sinus arrest and pneumothorax in a dog secondary to vehicle accident
In human several kinds of electrocardiographic findings have been reported in association with pneumothorax such as decreased and/or alternating QRS amplitude (electrical alternans). However, electrocardiographic changes concurrent with pneumothorax have rarely been discussed in veterinary literature. A 3-year-old male crossbreed dog was presented with a history of car accident. Thoracic au...
متن کاملEffect of lidocaine on the ventricular fibrillation threshold in the dog during acute ischemia and premature ventricular contractions.
SUMMARY The effect of lidocaine on the ventricular fibrillation threshold was investigated in the anesthetized open-chest dog during paced supraventricular rhythm, during acute ligation of the anterior descending coronary artery, and during premature ventricular contractions. The minimum current (in milliamperes) required to induce ventricular fibrillation was determined by passing a train (100...
متن کاملFailure of Beta-Adrenergic Blockade to Alter Ventricular Fibrillation Threshold in the Dog
The effects of two beta-adrenergic blocking agents, pronethalol and propranolol, on ventricular fibrillation thresholds were tested in dogs. Pronethalol (4.0 mg/kg, 5 dogs) produced a mean increase of 45% in the fibrillation threshold. Propranolol (0.4 mg/kg, 7 dogs) failed to produce a significant change of the fibrillation threshold. To examine the possibility that the difference between the ...
متن کاملFailure of beta-adrenergic blockade to alter ventricular fibrillation threshold in the dog. Evidence for extra-adrenergic effects of pronethalol.
The effects of two beta-adrenergic blocking agents, pronethalol and propranolol, on ventricular fibrillation thresholds were tested in dogs. Pronethalol (4.0 mg/kg, 5 dogs) produced a mean increase of 45% in the fibrillation threshold. Propranolol (0.4 mg/kg, 7 dogs) failed to produce a significant change of the fibrillation threshold. To examine the possibility that the difference between the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Clinical Cardiology
سال: 1991
ISSN: 0160-9289,1932-8737
DOI: 10.1002/clc.4960140710