医学
肺动脉高压
心脏病学
内科学
结缔组织病
疾病
队列
QRS波群
CTD公司
心力衰竭
曲线下面积
自身免疫性疾病
海洋学
地质学
作者
Jiayi Dai,Ting Liu,Hang Zhang,Xiaoxuan Sun,Yinghong Tang,Wei Qian,Yue Zhang,Huangshu Ye,Linwei Shan,Lin Li,Mengdi Du,Dongyu Li,Yinsu Zhu,Kefan Ma,Lin Liu,Qiang Wang,Lei Zhou
标识
DOI:10.1093/rheumatology/keae084
摘要
Abstract Objectives To investigate the prognostic impact and pathophysiological characteristics of fragmented QRS complex (fQRS) on patients with CTD-associated pulmonary arterial hypertension (CTD-PAH). Methods This was a multicentre retrospective study recruiting 141 patients with CTD-PAH diagnosed by right heart catheterization (114 cases in the discovery cohort and 27 cases in the validation cohort). fQRS and ST-T change were detected on conventional 12-lead ECG. Patients were followed up every 3 months to update their status and the primary endpoint was all-cause death. Clinical information and ECG characteristics were compared between survival and death groups and Kaplan–Meier curve was used for survival analysis. Results There were significant differences in age, gender, 6-min walk distance, N-terminal pro-brain natriuretic peptide, World Health Organization class, presence of fQRS, and presence of ST-T change in inferior leads between survival group and death group. Inferior fQRS and ST-T change were significantly associated with right ventricular dilatation and reduced right ventricular ejection fraction. Kaplan–Meier curve showed that all-cause mortality was higher in CTD-PAH with fQRS (P = 0.003) and inferior ST-T change (P = 0.012). Low- and intermediate-risk CTD-PAH with inferior ST-T change had higher all-cause mortality (P = 0.005). The prognostic value of fQRS and inferior ST-T change was validated in external validation cohort. Conclusion The presence of inferior fQRS and ST-T change could predict poor prognosis in CTD-PAH. Clinical trial registration NCT05980728, https://clinicaltrials.gov.
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