Pulse deficit more than 10 is seen in-

Atrial fibrillation (AF or A-fib) is an abnormal hea rhythm characterized by rapid and irregular beating of the atrial chambers of the hea.Often it stas as brief periods of abnormal beating which become longer and possibly constant over time.Often episodes have no symptoms. Occasionally there may be hea palpitations, fainting, lightheadedness, shoness of breath, or chest pain.The disease is associated with an increased risk of hea failure, dementia, and stroke.It is a type of supraventricular tachycardia Leads V4 and V5 of an electrocardiogram showing atrial fibrillation with somewhat irregular intervals between hea beats, no P waves, and a hea rate of about 150 BPM. Pulse deficit occurs when there are fewer pulses than there are heabeats. Atrial fibrillation and atrial flutter can cause pulse deficit because they cause the hea to beat so fast, and often irregularly, that the force of blood out of the hea is sometimes not strong enough to create a pulse. Ref Harrison 20th edition pg 1576