Abstract：Objective To investigate whether the indexes of ventricular repolarization and electrical excitation conduction in sleepdisordered patients are different from those in normal people, and to provide cardiac rehabilitation basis for sleep disordered patients with heartrelated diseases. Methods We randomly selected a routine physical examination population of 130 from our hospital, and carried out a questionnaire survey on all the subjects with the Pittsburgh sleep quality index(PSQI) scale. The subjects with a total PSQI score of 0.7 were set as normal sleep group (91 cases) while those with PSQI score no less than 8 were divided into sleepdisordered group (39 cases). Retrospective analysis was performed on the cardiac electrophysiological indicators of all the surveyed subjects including QRS duration, heart rate, QT interval, QTc, QTd，QTcd，Tpeak-Tend interval (Tp-Te), Tp-Te/QT, etc. The changes of ST-T in ECG were recorded. ResultsCompared with the normal sleep group, QTc, QTd, QTcd, TpTe, TpTe/QT and Tp-Te/QTc are all significantly prolonged in the sleepdisordered group (P<0.05); the incidence of ST-T change is significantly increased (P<0.01). Logistic regression analysis shows that sex and sleep time are the most influential variables for ST-T change in ECG (sex:OR=7.521, 95%CI 2.534-22.325, P<0.05; sleep duration: OR=2.604, 95%CI 1.470-4.611, P<0.05). Conclusion Sleep disorders may contribute to the inhomogeneity of ventricular repolarization, and possibly serve as one of the risk factors of cardiovascular disease. Female and shortened sleep time are proved to be the independent risk factors for ST-T changes.
李倩庆，刘玉琼，黄海明. 睡眠障碍对心室复极和心电激动传导的影响[J]. 实用心电学杂志, 2022, 31(1): 49-54.
LI Qianqing, LIU Yuqiong, HUANG Haiming. Influence of sleep disorders on ventricular repolarization and electrical excitation conduction. JOURNAL OF PRACTICAL ELECTROCARDIOLOGY, 2022, 31(1): 49-54.
