Sinus rhythm resumes with increased heart rates during exercise. In an ectopic atrial rhythm, P waves are present but are a different morphology compared to the sinus P wave. Ectopic P waves are most ...

and junctional ectopic tachycardia. [15] Supraventricular arrhythmias may occur in the pre- and post-MI setting. Causes of SVT include: irritation of atrial myocardium as a result of pericarditis ...

Stretch could affect trans-sarcolemmal Na+/Ca++ exchange, triggering ectopic excitation and inducing atrial and ventricular arrhythmias.3 Acute modulating factors such as haemodynamic stress, ...

Atrial fibrillation (AF) is the most common arrhythmia in the clinical setting ... mechanisms including atrial excitability and ectopic activity, atrial effective refractory period and reentry ...