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目的比较研究不同时间点的心电图QRS波时限、QTC间期、血浆脑钠素(BNP)水平变化情况与急性左心衰竭(急性左心衰)患者预后的相关性。方法 100例急性左心衰患者行心电图QRS波时限、QTC间期、BNP水平检测,分析三种指标对预后的影响。结果病死组患者不同时间点QRS波时限、QTC间期和BNP下降率显著高于预后不良组和预后理想组,差异具有统计学意义(P<0.05),预后不良组QRS波时限下降率显著高于预后理想组,差异具有统计学意义(P<0.05);72 h三组的各指标下降率均显著高于24 h(P<0.01)。QRS波时限、QTC间期、BNP水平均为影响急性左心衰患者预后的独立因素。结论 QRS波时限、QTC间期及BNP水平的下降率均与急性左心衰患者预后密切相关,三种指标可作为急性左心衰发生和发展的独立影响因素,以提高临床诊断、治疗和预后评价水平。
Objective To compare the correlation between ECG QRS duration, QTC interval, plasma BNP level and prognosis of patients with acute left heart failure (acute left heart failure) at different time points. Methods 100 patients with acute left heart failure ECG QRS wave limit, QTC interval, BNP levels were detected, the impact of three indicators on prognosis. Results The duration of QRS wave, QTC interval and BNP decline rate in patients in the deceased group were significantly higher than those in the poor prognosis group and the prognosis ideal group (P <0.05), and the decline rate of the QRS wave duration in the poor prognosis group was significantly higher The prognosis of the ideal group, the difference was statistically significant (P <0.05); 72 h three groups of indicators decreased significantly higher than 24 h (P <0.01). QRS wave duration, QTC interval, BNP levels are independent prognostic factors in patients with acute left heart failure. Conclusions The decline rate of QRS wave duration, QTC interval and BNP level are closely related to the prognosis of patients with acute left heart failure. The three indexes can be used as independent factors influencing the occurrence and development of acute left heart failure to improve the clinical diagnosis, treatment and prognosis Evaluation level.