Objective To evaluate the surgical results of off-pump for plication for left ventricular aneurysm. Methods The study included 34 patients with left ventricular aneurysm,who underwent left ventricular aneurysmecto- my and plicatien on pump in group Ⅰ(17 cases)and simply aneurysm plicatien off pump in group Ⅱ(17 cases).All patients except two in group I underwent coronary artery bypass grafting simultaneously.Results There was one early death in group Ⅱ because of refractory ventricular arrhythmia.The complication included atrial fibrillation,ventricular arrhythmias,heart failure and delayed healing of wound.The aneurysm in group Ⅰ[(45?15)%of the ventricle]is larger than in groupⅡ[(29?12)%of the ventricle,P