Batrachotoxin interferes with heart conduction, causing arrhythmias, extrasystoles, ventricular fibrillation and other changes which lead to cardiac arrest.
2.
Ventricular escape beats differ from ventricular extrasystoles ( or premature ventricular contractions ), which are spontaneous electrical discharges of the ventricles.
3.
In these cases, if the extrasystole are reduced or removed ( for example, via ablation therapy ) the cardiomyopathy usually regresses.
4.
Recent studies have shown that those subjects with an extremely high occurrence ( several thousands a day ) of premature ventricular contractions ( extrasystole ) can develop dilated cardiomyopathy.
5.
Studies ( notably the Cardiac Arrhythmia Suppression Trial ) have shown an increased mortality when flecainide is used to suppress ventricular extrasystoles in the setting of acute myocardial infarction.
6.
9 . Hattori Y, Hidaka T, Aisaka K, Satoh F, and Ishihara T . Effect of SUN 1165, a new potent antiarrhythmic agent, on the kinetics of rate-dependent block of Na channels and ventricular conduction of extrasystoles.
7.
This is complemented by gastro-coronary reflexes whereby the coronary arteries constrict with " functional cardiovascular symptoms " similar to chest-pain on the left side and radiation to the left shoulder, dyspnea, sweating, up to angina pectoris-like attacks with extrasystoles, drop of blood pressure, and tachycardia ( high heart beat ) or sinus bradycardia ( heart beat below 60 ).
परिभाषा
a premature systole resulting in a momentary cardiac arrhythmia
मोबाइल