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患者男性,58岁,因气促,呼吸困难1年入院。入院诊断为扩张型心肌病,左心扩大,完全性左束支传导阻滞,心功能Ⅲ级。植入带频率适应性房室延迟(RAAV)功能的双腔起搏器,RAAV单左室起搏半年后随访,左室射血分数值由术前0.34增加到0.47,左室舒张未期内径由69 mm缩小到58 mm,达到心脏再同步治疗超应答。
Male patient, 58 years old, hospitalized for 1 year due to shortness of breath, difficulty breathing. Admission diagnosis of dilated cardiomyopathy, left ventricular enlargement, complete left bundle branch block, cardiac function grade. Double-chamber pacemakers with frequency-adapted atrioventricular delay (RAAV) were implanted. Left ventricular ejection fraction was increased from 0.34 preoperatively to 0.47, Shrinking from 69 mm to 58 mm, cardiac resynchronization therapy over-responds.