【摘要】 为研究室性期前收缩伴原发性ST-T改变的发生机制及临床意义,分析57例符合室性期前收缩伴原发性ST-T改变诊断标准的患者(Ⅰ组)的相关参数,并与58例无器质性心脏病证据的室性期前收缩患者(Ⅱ组)比较。Ⅰ组中25例视原发性ST-T改变持续存在与否作逐日自身前后对照分析。结果发现:室性期前收缩伴原发性ST-T改变100％见于器质性心脏病患者,其持续存在可预示进展到高Lown分级室性心律失常;室性期前收缩的QRS时间≥0.14a(小儿≥0.12s),伴钝挫或切迹,对判断器质性室性期前收缩的价值为100％。提示室性期前收缩伴原发性ST-T改变是心肌缺血受损加重所致,对早期诊断、治疗及预后判断均有一定的临床价值。更多还原

【Abstract】 In order to study pathogenesis of primary changes in ventricular extrasystole ST-T and its clinical significance, 57 patients in conformity with diagnostic standard in primary changes of VPBs ST-T (group I ) and their concerned parameters were carefully analysed. Contrast was made for 58 patients of ventricular extrasystole without organic heart diseases (group Ⅱ). Twenty-five patients from group I . who were considered to have primary changes, were self-contrasted and analysed before and after treatment day by day. Results showed: 100% of cases of primary changes ofventricular extrasytole ST-T were those with organic heart disease, and lingering symtoms could be regarded as a prediction of more severe (Lown grade) ventricular arrhythmias s QRS interval of ventricular extrasystole≥0.14s (children≥0. 12s) with wave notching was of 100% in clinical diagnosis of organic heart disease. It was suggested primary changes in ventricular extrasystole ST-T was caused by myocardial ischemia injury and its deterioration. Observations of primary changes in ventricular extrasystole ST-T and their development are of clinical value in early diagnosis, treatment and prognosis.更多还原