Cardiophile MD

Archive for the ‘Ventricular fibrillation’ Category

Arrhythmias in Adolescents

Posted by: Johnson Francis on: 11 Apr, 2010

Arrhythmias in adolescents may vary from sinus arrhythmia which is a normal variant to life threatening arrhythmias like ventricular tachycardia. Wandering atrial pacemaker, isolated ventricular and supra ventricular ectopic beats and first degree AV block are some other arrhythmias which need no specific treatment. On the other hand, supraventricular tachycardia, ventricular tachycardia and symptomatic complete [...]

Ventricular fibrillation

Posted by: Johnson Francis on: 23 Jan, 2010

Ventricular fibrillation is also fatal unless promptly cardioverted. It is recognized on the elctrocardigraphic monitor as a highly disorganized rhythm with no definite P waves or QRS complexes. It can be coarse or fine depending on the amplitude of the fibrillary waves. Coarse fibrillation degenerates into fine fibrillation soon, which is more resistant to cardioversion. [...]

Ventricular Tachycardia (VT)

Posted by: Johnson Francis on: 22 Jun, 2009

Ventricular tachycardia is defined as three or more consecutive premature ventricular ectopics in a series, at a rate above 100 per minute. Mechanisms of VT Reentrant – scar related, bundle branch reentry, fascicular tachycardia Automatic – acute ischemia, electrolyte imbalance, increased sympathetic tone Triggered activity – early and delayed after depolarisation, idiopathic right ventricular outflow [...]