0.0)0.00 Preoperative ejection fraction, %00 (00 to 00)00 (00 to 00)0.0000 (00 to 00)00 (00 to 00)0.0000 (00 to 00)00 (00 to 00)0.00 Operative time, min000 (000 to 000)000 (000 to 000)0.00000 (000 to 000)000 (000 to 000)0.00000 (000 to 000)000 (000 to 000)0.00 Operative blood loss, g000 (000 to 000)000 (000 to 000