Fig 54.

89 year old man digitalised for postoperative atrial fibrillation after an AAA repair. He had a long history of angina, cardiomegaly and ventricular arrhythmias. Give 3 reasonable explanations for the bigeminy seen in the bottom strip.

89 year old man digitalised for postoperative atrial fibrillation after an AAA repair. He had a long history of angina, cardiomegaly and ventricular arrhythmias. Give 3 reasonable explanations for the bigeminy seen in the bottom strip.