Li, Yan-Guang, Pastori, Daniele, Miyazawa, Kazuo, Shahid, Farhan and Lip, Gregory YH 
ORCID: 0000-0002-7566-1626
(2021)
Identifying At-Risk Patients for Sustained Atrial High-Rate Episodes Using the C<sub>2</sub>HEST Score: The West Birmingham Atrial Fibrillation Project.
, England.
Abstract
Background Sustained atrial high-rate episodes (SAHREs) among individuals with a cardiac implantable electronic device are associated with an increased risk of adverse outcomes. Risk stratification for the development of SAHREs has never been investigated. We aimed to assess the performance of the C<sub>2</sub>HEST (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 [1 point]) score in predicting SAHREs in patients with cardiac implantable electronic devices without atrial fibrillation. Methods and Results Five Hundred consecutive patients with cardiac implantable electronic devices in the West Birmingham Atrial Fibrillation Project in the United Kingdom were followed since the procedure to observe the development of SAHREs, defined by atrial high-rate episodes lasting >24 hours. Risk factors and incidence of SAHREs were analyzed. The predictive value of the C<sub>2</sub>HEST score for SAHRE prediction was evaluated. Over a mean follow-up of 53.1 months, 44 (8.8%) patients developed SAHREs. SAHREs were associated with higher all-cause mortality (<i>P</i><0.001) and ischemic stroke (<i>P</i>=0.001). Age and heart failure were associated with SAHRE occurrence. The incidence of SAHREs increased by the C<sub>2</sub>HEST score (39% higher risk per point increase). Among patients with a C<sub>2</sub>HEST score ≥4, the incidence of SAHREs was 3.62% per year (95% CI, 2.14-5.16). The C<sub>2</sub>HEST score had moderate predictive capability (area under the curve, 0.73; 95% CI, 0.64-0.81) and discriminative ability (log-rank <i>P</i>=0.003), which was better than other clinical scores (CHA<sub>2</sub>DS<sub>2</sub>-VASc, CHADS<sub>2</sub>, HATCH). Conclusions The C<sub>2</sub>HEST score predicted SAHRE incidence in patients without atrial fibrillation who had an cardiac implantable electronic device, with the highest risk seen in patients with a C<sub>2</sub>HEST score ≥4 The benefit of using the C<sub>2</sub>HEST score in clinical practice in this patient population needs further investigation.
| Item Type: | Conference or Workshop Item (Unspecified) |
|---|---|
| Uncontrolled Keywords: | atrial high rate episode, C2HEST score, risk evaluation, subclinical atrial fibrillation |
| Divisions: | Faculty of Health and Life Sciences Faculty of Health and Life Sciences > Institute of Life Courses and Medical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 15 Mar 2021 10:40 |
| Last Modified: | 17 Oct 2023 11:17 |
| DOI: | 10.1161/JAHA.120.017519 |
| Open Access URL: | https://doi.org/10.1161/JAHA.120.017519 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3117344 |
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