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DOI: 10.1055/s-0037-1604112
Risk Stratification for Acute Pulmonary Embolism in Patients with Atrial Fibrillation: Role of CHADS2 Score
Publication History
Publication Date:
27 July 2017 (online)
Abstract
Pulmonary embolism (PE) is associated with atrial fibrillation (AF). This study sought to explore if the CHADS2 score could predict the prognosis of PE in patients with AF. In a tertiary hospital, 4,288 consecutive patients with diagnosis of PE were screened. In total, 305 patients with PE had AF and were included in this retrospective study. In-hospital outcome was defined as at least one of the following: death from any cause, need for intravenous catecholamine administration, endotracheal intubation, cardiopulmonary resuscitation, or thrombolytic therapy. The in-hospital outcome occurred in 10.2% of the patients. Patients with adverse outcome had higher CHADS2 score, CHA2DS2-VASc score, and simplified pulmonary embolism severity index (sPESI) score. The area under the receiver operating characteristics curve was 0.66, 0.62, and 0.71 for CHADS2 score, CHA2DS2-VASc score, and sPESI score, respectively, in predicting in-hospital outcome. The incidence of in-hospital outcome was 3.4 and 14.4% in sPESI = 0 and sPESI ≥1 groups (p < 0.01). CHADS2 also had good predictive value with the incidence of in-hospital outcome, being 4.6% in CHADS2 < 2 and 14.3% in CHADS2 ≥ 2 groups (p < 0.01). The incidences of in-hospital outcome were 2.6, 4.8, 7.4, and 17.3% in patients with sPESI = 0 and CHADS2 < 2, sPESI = 0 and CHADS2 ≥ 2, sPESI ≥ 1 and CHADS2 < 2, and sPESI ≥ 1 and CHADS2 ≥ 2 (p < 0.01), respectively. In multivariable analysis, CHADS2 (odds ratio: 1.50; 95% confidence interval: 1.11–2.02; p < 0.01) was an independent predictor of in-hospital adverse outcome. High CHADS2 score could predict worse in-hospital outcome in patients with PE and AF.
* Drs. Ri-Bo Tang and Zhi-Yuan Xu contributed equally and share the first authorship.
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