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C2 HEST Score and Prediction of Incident Atrial Fibrillation in Poststroke Patients: A French Nationwide Study

Authors
 Yan‐Guang Li  ;  Arnaud Bisson  ;  Alexandre Bodin  ;  Julien Herbert  ;  Leslie Grammatico‐Guillon  ;  Boyoung Joung  ;  Yu‐Tang Wang  ;  Gregory Y. H. Lip  ;  Laurent Fauchier 
Citation
 Journal of the American Heart Association, Vol.8(13) : e012546., 2019 
Journal Title
 Journal of the American Heart Association 
Issue Date
2019
Keywords
atrial fibrillation ; cohort study ; ischemic stroke ; risk score
Abstract
Background The C2HEST score (coronary artery disease or chronic obstructive pulmonary disease [1 point each]; hypertension [1 point]; elderly [age ≥75 years, 2 points]; systolic heart failure [2 points]; thyroid disease [hyperthyroidism, 1 point]) was initially proposed for predicting incident atrial fibrillation (AF) in the general population. Its performance in poststroke patients remains to be established, especially because patients at high risk for incident AF should be targeted for more comprehensive screening. This study aimed to evaluate this newly established incident AF prediction risk score in a post-ischemic stroke population. Methods and Results Validation was based on a hospital-based nationwide cohort with 240 459 French post-ischemic stroke patients. Kaplan-Meier curves for incident rate of AF depict differences between varying risk categories. Discrimination of the C2HEST score was evaluated using the C index, the net reclassification index, integrated discriminatory improvement, and decision curve analysis. During 7.9±11.5 months of follow-up, 14 095 patients developed incident AF. The incidence of AF increased from 23.5 per 1000 patient-years in patients with a C2HEST score of 0 to 196.8 per 1000 patient-years in patients with a C2HEST score ≥6. Kaplan-Meier curves showed a clear difference among different risk strata (log-rank P<0.0001). The C2HEST score had good discrimination with a C index of 0.734 (95% CI, 0.732-0.736), which was better than the Framingham risk score and the CHA2DS2-VASc score (congestive heart failure, hypertension, age ≥75 [doubled], diabetes mellitus, stroke [doubled], vascular disease, age 65 to 74 years, and female sex) ( P<0.0001, respectively). The C2HEST score was also superior to the Framingham risk score and the CHA2DS2-VASc score as shown by the net reclassification index, integrated discriminatory improvement ( P<0.0001, respectively) and decision curve analysis. Conclusions The C2HEST score performed well in discriminating the individual risk of developing incident AF in a white European population hospitalized with previous ischemic stroke. This simple score may potentially be used as a risk stratification tool for decision making in relation to a screening strategy for AF in post-ischemic stroke patients.
Files in This Item:
T201903502.pdf Download
DOI
10.1161/JAHA.119.012546
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Joung, Bo Young(정보영) ORCID logo https://orcid.org/0000-0001-9036-7225
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/171426
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