Bigeminal pulse

Bigeminal pulse is a medical condition when alternate pulses are abnormally weaker and not at regular interval. It is mainly due to abnormal alternate beats , which may be result of ectopic beats. Ectopic beats may be atrial or ventricular in origin. Atrial bigeminy or ventricular bigeminy can both give rise to bigeminal pulse. Similar features between bigeminal pulse and pulsus alternans are strong peak and weak peak. However, unlike pulsus alternans, the weak beat in bigeminal pulse occurs prematurely . Thus, not followed a pause as it is in pulsus alternans but occurs close to normal strong beat.