Right ventricular aneurysm with ventricular premature beats.

The majority of left ventricular aneurysms occur as a consequence of ischaemic heart disease and healed myocardial infarction. Arrhythmias happen sometimes as complications of left ventricular aneurysm, and aneurysmectomy for the control of these arrhythmias was recently reported (Hunt, Sloman, and Westlake, I969). In contrast, aneurysm of the right ventricle is rare (Weglicki, Ruskin, and McIntosh, i966), and coronary artery disease is not thought to be an important aetiological factor (Stansel, Julian, and Dye, I963). The relation between right ventricular aneurysm and arrhythmia is not clear and reports on arrhythmias caused by right ventricular aneurysms are extremely rare. The purpose of this paper is to report 2 cases of right ventricular aneurysms which act as the trigger for ventricular extrasystoles, and in one of these cases, aneurysmectomy led to the termination of the intractable ventricular extrasystoles.