Prognosis assessment by applying CRB-65 score to acute heart failure patients: comparison with previous prognosis predictors

Park, Yelyn; Lee, Dong Wook; Moon, Hyung Jun; Lee, Hyun Jung; Jeong, Dong Kil; Kim, Doh-Eui; Kim, Hyun Joon

J Korean Soc Emerg Med > Volume 32(6); 2021 > Article

Original Article

Journal of The Korean Society of Emergency Medicine 2021;32(6): 611-619.

급성 심부전 환자에게 CRB-65를 적용하여 예후를 평가하는 것의 의의: CRB-65와 기존 예후 예측 지표들 간 비교

박예린

순천향대학교 천안병원 응급의학과

Prognosis assessment by applying CRB-65 score to acute heart failure patients: comparison with previous prognosis predictors

Department of Emergency Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea

Correspondence

Hyun Joon Kim ,Tel: 041-570-2299, Fax: 041-592-3806, Email: a89301505@gmail.com,

Received: July 29, 2021; Revised: September 24, 2021 Accepted: November 1, 2021. Published online: December 31, 2021.

ABSTRACT

Objective:
This study aimed to evaluate the effectiveness of the CRB-65 score as a prognostic predictor in acute heart failure (HF) patients who visited the emergency department (ED).
Method:
This study was performed retrospectively on HF patients over the age of 19 years admitted to the ED between August 2018 and July 2020. The patients who met the Framingham criteria, including acute pulmonary edema, were classified by the CRB-65 score and compared with previous HF prognostic predictors (Acute Decompensated Heart Failure National Registry, Get with The Guidelines-Heart Failure and Enhanced Feedback for Effective Cardiac Treatment). We defined the primary outcome as 30-day mortality and secondary outcomes as hospitalization days (HD), admission to intensive care unit (ICU), length of stay (LOS) in the ICU and mechanical ventilation (MV). We conducted linear regression and logistic regression with these outcomes and obtained the area under the receiver-operating characteristics (AUROC) curve to compare the predictive power of the primary outcome.
Results:
A total of 462 patients were included in the study, and their mean age was 80 years. According to the linear and logistic regression analysis results, the CRB-65 score was significantly correlated with HD (P<0.001), admission to ICU (P=0.014), LOS in ICU (P<0.001) and MV (P=0.004). The AUROC curve of CRB-65 was not higher than the other previous prognostic predictors (AUROC, 0.69), but the result was not different from the predictors.
Conclusion:
The CRB-65 score is one of the prognostic indicators of acute HF in the ED. However, its prognostic predictive power remains limited.

Key words: Heart failure; Prognosis; Emergency department