Abstract：Objective To investigate the variation of Tpeak-Tend (Tp-Te) interval in patients with arrhythmia caused by paraquat poisoning. Methods Ninety paraquatpoisoned patients treated in our hospital were selected. They were divided into two groups—control group (n=50) and observation group (n=40) according to the absence or presence of arrhythmia in the first EEG results. Tp-Te intervals of three cardiac cycles (at acute and recovery phase) were measured by ECG monitoring, and the mean values were obtained and denoted as Tp-Te. Tp-Te and heart rate corrected Tp-Te interval (Tp-Tec) values were compared between the two groups at acute and recovery phase; their association with arrhythmia was analyzed. Results In the observation group, Tp-Te and Tp-Tec values at acute phase are both higher than those in the control group [(136.58±4.95) ms vs (124.93±4.91) ms, (127.59±4.92) ms vs (110.87±4.96)ms], with statistically significant differences (P<0.05); Tp-Te and Tp-Tec values at recovery phase are both higher than those in the control group (11484±593) ms vs (102.93±5.98)ms, (111.63±5.76)ms vs (101.85±5.74)ms], with statistically significant differences (P<0.05) Tp-Te and Tp-Tec are significantly positively correlated with the occurrence of arrhythmia (r=0.669, 0.714, P<0.05). Conclusion Tp-Te and Tp-Tec significantly increase in the acute and recoveryphase ECGs of patients with arrhythmia caused by paraquat poisoning,which has important predictive value on the occurrence and development of arrhythmia.
李培培. 百草枯中毒患者Tp-Te间期变化对心律失常的预测价值[J]. 实用心电学杂志, 2020, 29(6): 422-424.
Li Pei-pei. Predictive value of Tp-Te interval changes on arrhythmia in paraquatpoisoned patients. JOURNAL OF PRACTICAL ELECTROCARDIOLOGY, 2020, 29(6): 422-424.
