论文部分内容阅读
研究自的 探讨儿童室性期前收缩与心内膜、心肌超微结构变化的关系。 研究设计 对室性期前收缩儿童行心内膜、心肌活检。 患者 8～16岁期前收缩儿童,男6例,女4例。超声心动图、射血分数、生化、兔疫、心脏X线检查(除1例左室轻度增大外)均正常,运动负荷试验阴性。 处理方法 用经改进的 Olympus 显微胃镜活检钳,经股静脉送至右心室。分别在心尖部和室间隔钳取心内膜心肌组织2～3块,光镜和电镜检查。 研究结果 心内膜心肌活检除1例病理基本正常外,9例均有不同程度的心肌心内膜损害。 结论 无症状的室性期前收缩儿童,心内膜心肌活检阳性可做为诊断基础,而阴性也不能除外器质性病变。
To study the relationship between ventricular premature contractions and changes of endocardium and myocardial ultrastructure in children. Study design of ventricular end systolic ventricular endocardium, myocardial biopsy. Patients aged 8 to 16 years before the contraction of children, 6 males and 4 females. Echocardiography, ejection fraction, biochemical, rabbit epidemic, cardiac X-ray examination (except 1 case of mild left ventricular enlargement) were normal, negative exercise load test. Methods of treatment with a modified Olympus microscopy biopsy forceps, sent to the right ventricle through the femoral vein. Atrial septum and ventricular septum were taken from the endocardial myocardial tissue 2 to 3, light and electron microscopy. Endocardial myocardial biopsy in 1 case of pathological findings were normal, 9 patients had varying degrees of myocardial endocardial damage. Conclusion Asymptomatic ventricular premature contractions in children, endomyocardial biopsy positive can be used as the basis for diagnosis, and negative can not except organic disease.