sinoatrial exit block

sinoatrial exit block

Cardiology Sinus-node dysfunction, aka sick sinus syndrome characterized by a normal P-wave axis EKG Progressive shortening of PP interval until one P wave fails to conduct–2nd degree, type I–or sinus pause is an exact multiple of the baseline PP interval–2nd degree, type II. See Sick sinus syndrome.
References in periodicals archive ?
6) The former situation can be seen during periods of sinus arrhythmia, sinus bradycardia, sinus arrest, or sinoatrial exit block, and the latter with accelerated junctional rhythm and ventricular tachycardia.