【摘要】 为保证高能CO2激光心肌血运重建术打孔成功率，使用食管超声心动图在术中监测并调节激光打孔能量，孔道穿通时可见心腔内小气泡产生。结果显示，18例共打534孔，穿通516孔，穿通率96．62％，未见心内结构损伤。说明高能CO2激光是激光心肌血运重建术的理想激光源；且手术创伤小、时间短、打孔穿通率高、不需体外循环。试验表明，术中应用食管超声心动图监测，对指导激光打孔并调节激光能量有重要价值。更多还原

【Abstract】 To confirm myocardial penetration of TMLR operation,the TEE study was performed,which could detect and display bubbles within the left ventricular cavity, and select the Laser energy levels. 534 holes was taken in 18 patients, 96. 62% of discharges got sucessful traversing. Without damage to chordae or cusps of mitral valve or aortic valve. This reveals that the highypower CO2 Laser is available to TMLR, with little injury,short operating period,high rate of successful penetration,and without CPB. TEE takes important role to TMLR.更多还原