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原发性Q-T间期延长综合症(LQTS)比较少见,现将我院近来见到的2例报告如下。例1女,8岁。因反复晕倒抽搐1年入院。患儿入院前在剧烈活动后自感心慌不适,遂即晕倒神志不清,四肢小抽搐,约1～2分钟后自行缓解。类似发作共五次。体检:心率84次/分,律不齐,心尖部闻及收缩期Ⅱ级吹风样杂音。两耳音叉试验听力正常。胸片、二维超声心动图和M 超声无异常。心电图示P-R间期0.16秒,Q-T间期0.44秒,T 波高宽,U 波高于T 波。诊断LQTS。服扑癎酮0.125g,一日三次对症治疗,1月后心电图示Q-T 间期缩短至0.40秒,T 波
Primary Q-T prolongation syndrome (LQTS) is relatively rare, now in our hospital to see the 2 cases reported below. Example 1 Female, 8 years old. Because of repeated fainting convulsions 1 year admission. Children admitted to hospital before the violent activities feel flustered, then fainted unconscious, small limbs convulsions, about 1 to 2 minutes after the self-remission. A total of five similar attacks. Physical examination: heart rate 84 beats / min, irregular arrhythmias, apex smell and systolic grade Ⅱ hair-like murmur. Listening test fork hearing normal. X-ray, two-dimensional echocardiography and M ultrasound no abnormalities. ECG P-R interval of 0.16 seconds, Q-T interval of 0.44 seconds, T-wave width, U wave higher than the T wave. Diagnose LQTS. Pupa ketone 0.125g, symptomatic treatment three times a day after January ECG Q-T interval shortened to 0.40 seconds, T wave