Perioperative medicine & outcomes
Association of the Revised Cardiac Risk Index with 1-year postoperative mortality: A single-center retrospective study
Main finding · 1-year postoperative mortalityResult — go to the resultAdjusted hazard ratio 2.14 95 % CI 1.78–2.56Authors' conclusion
RCRI is significantly correlated with 1-year postoperative mortality regardless of sex, age, and type of anesthesia.
Study context
- Population
- Adults ≥18 years surgically treated under GA or RA in a tertiary hospital in Singapore
- Participants
- 54,933 adults
- Exposure
- Revised Cardiac Risk Index (RCRI) Class II, III, IV vs Class I
- RCRI Class In = 23,922reference
- Class IIn = 25,979
- Class IIIn = 3,700
- Class IVn = 1,332
- Outcome
- Postoperative mortality
- Follow-up
- 1 year
Methodological detailssingle-centre
- Single-centre
Main finding
1-year postoperative mortality
Adjusted hazard ratio
2.14
95 % CI 1.78–2.56
P < 0.001
Class IV vs RCRI Class I
adjusted HR 2.14 (95 % CI 1.78–2.56); P < 0.001
As reported in the abstract
Observational data: associations, not effects.
Further findings
Risk factors for 1-year postoperative mortality (Cox regression)
- Male sex, age, higher American Society of Anesthesiologists (ASA) class, RA, emergency surgery, degree of anaemia and increased RCRI significantly associated with increased risk (HR > 1, all P < 0.001)
1-year postoperative mortality by sex, age and type of anaesthesia (subgroup)
- Significantly higher with RCRI Class IV than Classes I-III regardless of sex, age and type of anaesthesia
Original publication
Association of the Revised Cardiac Risk Index with 1-year postoperative mortality: A single-center retrospective study. J Clin Anesth. Published 22 January 2025. doi:10.
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