急性ST段抬高心肌梗死发病的时辰节律特点

Characteristics of onset timing in patients with ST segment elevation myocardial infarction

目的了解急性ST段抬高心肌梗死发病的时辰节律特点。方法前瞻性收集北京市通州区潞河医院心内科2007年1月-12月收治的287例STEMI患者。记录患者的发病月份、周和时间点,运用圆分布分析每日和每年的发病是否集中于某个时间以及每周7d内的发病是否有差异。结果①STEMI的发病集中在1月7日前后(r=0.1061,P<0.01)。②每周的发病高峰在星期五(19.5%)和星期六(15.7%),低谷在星期二(10.1%)。③STEMI的发病集中在每日的12:00-13:00左右,但统计学无差异(r=0.089,P>0.05)。结论心肌梗死的发病在时间上存在一定规律,是人体生理周期和环境变化的反映。

Objective To analyze characteristics of onset time in patients with ST segment elevation myocardial infarction (STEMI). Methods 287 consecutive patients with STEMI were prospectively analyzed from January, 2007 to December 2007. Onset of the timing of day, week and year were record . The circular distribution was used for the analysis of the time regularity of the onset and weekly variation of STEMI. Results ①the peak of the symptom Onset in day distribution was 7th, Janury(P<0.01). ②Two peaks of onset of STEMI were observed in weekly distribution, they were Friday and Saturday. ③one peak of onset among 24 hour in the day was 12:00-13:00(P>0.05).Conclusion Onset of STEMI is more frequently seen at certain times in a day, it may be related to physiological cycle and influenced by surrounding circumstances.