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目的 介绍双心室起搏治疗心力衰竭的初步经验。 方法 6例充血性心力衰竭患者 ,男性 4例 ,女性 2例 ,平均年龄 5 8岁 ;心功能 NYHA分级 : ～ 级 ;均伴有心室内阻滞。患者均植入了三腔双心室起搏器 ,左心室导线通过冠状静脉窦插入心脏静脉侧分支或侧后分支。 结果 所有患者植入起搏器后临床症状改善 ,超声心动图检查显示左心室收缩功能和同步性改善 ,舒张期充盈改善 ,二尖瓣返流减少 ,此外 ,双心室起搏后 ,所有病例 QRS时限缩短。 结论 双心室起搏对于药物难治性心力衰竭 ,伴有 QRS波增宽的患者 ,可使心功能得到改善。
Objective To introduce the preliminary experience of biventricular pacing in the treatment of heart failure. Methods Six patients with congestive heart failure, 4 males and 2 females, with an average age of 5 8 years old; NYHA class NYHA class: ~ grade; both with intraventricular block. Patients were implanted with a three-chamber biventricular pacemaker. Left ventricular leads were inserted through the coronary sinus into the venous or lateral veins. Results All patients had improved clinical symptoms after implantation of pacemaker. Echocardiography showed improvement of left ventricular systolic function and synchrony, improvement of diastolic filling and reduction of mitral regurgitation. In addition, after biventricular pacing, all patients had QRS Shorten the time limit. Conclusions Biventricular pacing improves heart function in patients with refractory heart failure and a prolonged QRS wave.