A 63-year-old patient presented with dyspnea and chest distress. A computerized tomography and echocardiogram showed a cardiac mass in the right ventricle, which caused obstruction of the right ventricular outflow tra...A 63-year-old patient presented with dyspnea and chest distress. A computerized tomography and echocardiogram showed a cardiac mass in the right ventricle, which caused obstruction of the right ventricular outflow tract. Coronary angiography revealed a dense meshwork of the abnomorly capillary vessels originating from right coronary artery. The mass was completely excised under cardiopulmonary bypass. The mass attached right ventricle lateral wall and posterior triscupid leaflet. Histology was typical myomatous tissue.展开更多
目的:观察主动电极在右室流出道间隔部起搏安全性和可行性。方法:80例需起搏器植入的患者,随机入组,采用VVI或DDD起搏模式,右室流出道间隔部起搏(RVOTS组)和右心室心尖部起搏(RVA组)各40例,观察两组在术中及术后的各项参数以及起搏心电...目的:观察主动电极在右室流出道间隔部起搏安全性和可行性。方法:80例需起搏器植入的患者,随机入组,采用VVI或DDD起搏模式,右室流出道间隔部起搏(RVOTS组)和右心室心尖部起搏(RVA组)各40例,观察两组在术中及术后的各项参数以及起搏心电图的QRS宽度。结果:两组患者均顺利完成手术,两组各1例术后发生电极脱位。全部手术无严重并发症出现。RVOTS组手术X线曝光时间明显延长(19.8±6.4 vs 10.3±4.8,P<0.01);术中心室的起搏阈值RVOTS组高于RVA组(0.61±0.23 vs 0.48±0.17,P<0.05),但术后1个月及3个月无统计学差异,两组间阻抗、感知在术中及术后无统计学差异,起搏心电图QRS波宽度无统计学差异。结论:主动电极在右室流出道间隔部起搏是安全和可行的。展开更多
目的比较右室流出道(RVOT)和右室心尖部(RVA)起搏对心脏做功和重构的影响。方法 83例缓慢心律失常的患者,其中男40例,女43例,随机分为RVOT间隔部起搏组(RVOT组,n=42)和RVA部起搏组(RVA组,n=41),观察两组QRS波时限、新出现心房颤动(简称...目的比较右室流出道(RVOT)和右室心尖部(RVA)起搏对心脏做功和重构的影响。方法 83例缓慢心律失常的患者,其中男40例,女43例,随机分为RVOT间隔部起搏组(RVOT组,n=42)和RVA部起搏组(RVA组,n=41),观察两组QRS波时限、新出现心房颤动(简称房颤)的情况、心腔内径及左室射血分数(LVEF)的变化。结果随访11.47±1.67个月,两组术后QRS波时限均较术前明显延长(P<0.01),RVA组明显长于RVOT组(P<0.01);两组的左房内径和左室收缩末径均未见明显变化,RVA组1年后左室舒张末径较术前显著增加(53.53±5.72 mm vs 50.03±6.20 mm,P<0.05),两组1年后LVEF均较术前显著降低(RVOT、RVA比较分别为0.57±0.10 vs 0.62±0.11,0.53±0.08 vs 0.63±0.10,P均<0.01);两组新出现房颤例数亦未见差异。结论 RVOT起搏对心室重构的影响要好于RVA起搏。展开更多
文摘A 63-year-old patient presented with dyspnea and chest distress. A computerized tomography and echocardiogram showed a cardiac mass in the right ventricle, which caused obstruction of the right ventricular outflow tract. Coronary angiography revealed a dense meshwork of the abnomorly capillary vessels originating from right coronary artery. The mass was completely excised under cardiopulmonary bypass. The mass attached right ventricle lateral wall and posterior triscupid leaflet. Histology was typical myomatous tissue.
文摘目的:观察主动电极在右室流出道间隔部起搏安全性和可行性。方法:80例需起搏器植入的患者,随机入组,采用VVI或DDD起搏模式,右室流出道间隔部起搏(RVOTS组)和右心室心尖部起搏(RVA组)各40例,观察两组在术中及术后的各项参数以及起搏心电图的QRS宽度。结果:两组患者均顺利完成手术,两组各1例术后发生电极脱位。全部手术无严重并发症出现。RVOTS组手术X线曝光时间明显延长(19.8±6.4 vs 10.3±4.8,P<0.01);术中心室的起搏阈值RVOTS组高于RVA组(0.61±0.23 vs 0.48±0.17,P<0.05),但术后1个月及3个月无统计学差异,两组间阻抗、感知在术中及术后无统计学差异,起搏心电图QRS波宽度无统计学差异。结论:主动电极在右室流出道间隔部起搏是安全和可行的。
文摘目的比较右室流出道(RVOT)和右室心尖部(RVA)起搏对心脏做功和重构的影响。方法 83例缓慢心律失常的患者,其中男40例,女43例,随机分为RVOT间隔部起搏组(RVOT组,n=42)和RVA部起搏组(RVA组,n=41),观察两组QRS波时限、新出现心房颤动(简称房颤)的情况、心腔内径及左室射血分数(LVEF)的变化。结果随访11.47±1.67个月,两组术后QRS波时限均较术前明显延长(P<0.01),RVA组明显长于RVOT组(P<0.01);两组的左房内径和左室收缩末径均未见明显变化,RVA组1年后左室舒张末径较术前显著增加(53.53±5.72 mm vs 50.03±6.20 mm,P<0.05),两组1年后LVEF均较术前显著降低(RVOT、RVA比较分别为0.57±0.10 vs 0.62±0.11,0.53±0.08 vs 0.63±0.10,P均<0.01);两组新出现房颤例数亦未见差异。结论 RVOT起搏对心室重构的影响要好于RVA起搏。
