Key result
Each RAI-rev unit increase is linked to ~2% higher major morbidity and mortality after abdominal surgery.
Why the study?
The revised-Risk Analysis Index accurately predicts postoperative mortality risk, but its association with major morbidity and mortality among older surgical patients was largely unknown.
Does the revised-Risk Analysis Index (RAI-rev) predict postoperative major morbidity and mortality in older patients undergoing abdominal surgery?
Population
2225 patients aged 65 and older undergoing abdominal surgery
Comparison
Higher vs lower preoperative RAI-rev scores
Design
Retrospective cohort study
Follow-up
During hospitalization
Authors
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Hypothesis-generating for RAI-rev in older abdominal surgery patients; prospective validation required before clinical adoption.
Cohort (n=2,225)
No
Does the revised-Risk Analysis Index (RAI-rev) predict postoperative major morbidity and mortality in older patients undergoing abdominal surgery?
Odds Ratio: 1.023 (95% CI 1.003–1.044)
p-value: p=0.026
The RAI-rev score is independently associated with an increased risk of major morbidity and mortality in older patients undergoing abdominal surgery, and its predictive performance improves when combined with other clinical factors.
Wei et al. (2022) conducted a cohort in Older patients undergoing abdominal surgery (n=2,225). Revised-Risk Analysis Index (RAI-rev) score vs. Lower RAI-rev scores was evaluated on Postoperative major morbidity and mortality (MMM) during hospitalization (OR 1.023, 95% CI 1.003 to 1.044, p=0.026). Each unit increase in the revised-Risk Analysis Index score was independently associated with a 2.3% increase in the odds of major morbidity and mortality (OR 1.023) in older patients after abdominal surgery.
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