…to re entry This section introduces the most common arrhythmias encountered in clinical practice, beginning with a discussion of the underlying mechanisms of cardiac arrhythmias…

…are highly lethal arrhythmias that lead to death if cardiopulmonary resuscitation is not started immediately. Ventricular fibrillation is the result of numerous re entry circuits …

…ventricular rhythms. Increased automaticity (in His Purkinje fibers), abnormal automaticity (in contractile myocardium), re entry (anywhere) or triggered activity (anywhere) may all cause ventricular arrhythmias…

…increased/abnormal automaticity, re entry or triggered activity. All types of myocardial cells may be engaged in initiation and maintenance of this arrhythmia. As mentioned…

…the slow conducting isthmuses critical for re entry [6] . Non ischemic dilated cardiomyopathy (NICM), hypertrophic cardiomyopathy (HCM), and arrhythmogenic right ventricular cardiomyopathy (ARVC) also fall…

…of the sinoatrial (SA) node. This enhanced atrial activity is most commonly attributable to abnormal automaticity or re entry mechanisms; triggered activity is a less…

Arrhythmias and arrhythmology ECG Atrioventricular Nodal Reentry (Reentrant) Tachycardia (AVNRT): clinical features, mechanisms, ECG & management Atrioventricular nodal reentrant tachycardia (AVNRT) is a common tachyarrhythmia observed…

…right atrium and it typically loops around the tricuspid valve. Impulses spread rapidly through the atria from this re entry circuit. Examples of atrial flutter…

Arrhythmias and arrhythmology ECG Pre excitation, Atrioventricular Reentrant (reentry) Tachycardia (AVRT) and Wolff Parkinson White (WPW) syndrome: ECG, clinical characteristics and management Pre excitation The…

…of tachyarrhythmia with narrow QRS complexes (QRS duration < 0.12 s): sinus tachycardia, inappropriate sinus tachycardia, sinus node re entry, atrial fibrillation, atrial flutter…