Association of the Revised Cardiac Risk Index with 1-year postoperative mortality: A single-center retrospective study

IF 5 2区 医学 Q1 ANESTHESIOLOGY
Jing Hao , Yue Qian , Min Hou , Yan Yang, Luyang Zhou, Zhuanyun Zhang, Wei Zhu, Yu-e Sun, Xiaoping Gu, Zhengliang Ma
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引用次数: 0

Abstract

Objective

To explore risk factors for 1-year postoperative mortality and to identify its association with the Revised Cardiac Risk Index (RCRI).

Methods

This was a retrospective cohort study involving 54,933 patients aged 18 years and above who were surgically treated under general or regional anesthesia in a tertiary hospital in Singapore. Independent risk factors for 1-year postoperative mortality were identified by univariate Cox regression analysis. The association between the RCRI and 1-year postoperative mortality was assessed by the Kaplan-Meier estimator and multivariate Cox regression analysis and was further validated in subgroup analyses stratified by the sex, age, and type of anesthesia.

Results

A total of 54,933 eligible patients were enrolled in this study that included 23,922 patients classified as RCRI Class I, 25,979 as Class II, 3700 as Class III, and 1332 as Class IV. Cox regression analysis demonstrated that male sex, age, higher American Society of Anesthesiologists (ASA) physical status classification level, regional anesthesia, emergency surgery, degree of anemia, and increased RCRI were significantly associated with the increased risk of 1-year postoperative mortality (HR > 1, all P < 0.001). The significant association between RCRI and 1-year postoperative mortality still existed after adjusting for confounding factors. An RCRI Class IV was associated with a mortality risk greater than two-fold larger than that observed at an RCRI Class I (adjusted HR 2.14, 95 % CI 1.78 to 2.56, p < 0.001). Subgroup analyses revealed that the 1-year postoperative mortality was significantly higher in patients with RCRI Class IV than that of Classes I-III regardless of the sex, age, and type of anesthesia.

Conclusion

RCRI is significantly correlated with 1-year postoperative mortality regardless of sex, age, and type of anesthesia. Further studies to validate these findings are warranted.

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来源期刊
CiteScore
7.40
自引率
4.50%
发文量
346
审稿时长
23 days
期刊介绍: The Journal of Clinical Anesthesia (JCA) addresses all aspects of anesthesia practice, including anesthetic administration, pharmacokinetics, preoperative and postoperative considerations, coexisting disease and other complicating factors, cost issues, and similar concerns anesthesiologists contend with daily. Exceptionally high standards of presentation and accuracy are maintained. The core of the journal is original contributions on subjects relevant to clinical practice, and rigorously peer-reviewed. Highly respected international experts have joined together to form the Editorial Board, sharing their years of experience and clinical expertise. Specialized section editors cover the various subspecialties within the field. To keep your practical clinical skills current, the journal bridges the gap between the laboratory and the clinical practice of anesthesiology and critical care to clarify how new insights can improve daily practice.
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