Neuroanesthesia & neurocritical care

Risk of Mortality Following Surgery in Patients With a Previous Cardiovascular Event

JAMA SurgPublished Retrospective cohort study

Authors' conclusion

In this study, surgery within 1 year of an acute coronary syndrome or stroke was associated with increased postoperative mortality before reaching a new baseline, particularly for elective surgery.

Study context

Population
Adults undergoing NHS-funded noncardiac, nonneurologic surgery in England, April 1, 2007–March 31, 2018
Participants
877,430 vs 20,582,717
Exposure
Prior cardiovascular event vs No prior cardiovascular event
  • Prior cardiovascular eventn = 877,430
  • No prior cardiovascular eventn = 20,582,717reference
Outcome
All-cause mortality
Follow-up
30 days
Methodological detailslongitudinal, population-based, linked national registries, Data analysed July 2021 to July 2022
  • Longitudinal
  • Population-based
  • Linked national registries
  • Data analysed July 2021 to July 2022

Main finding

As reported in the abstract

Time interval after cardiovascular event associated with increased 30-day postoperative mortality

Increased risk with surgery within (months), all surgery

11.3

95% CI 10.8–11.7

Increased risk interval before elective surgery (months)

14.2

95% CI 13.3–15.3

Increased risk interval for emergency surgery (months)

7.3

95% CI 6.8–7.8

Observational data: associations, not effects.

Secondary outcomes

OutcomeaHR (95% CI)
30-day mortality, emergency surgery (subgroup)1.35 (1.34–1.37)
30-day mortality, elective surgery (subgroup)1.83 (1.78–1.89)

Original publication

Risk of Mortality Following Surgery in Patients With a Previous Cardiovascular Event. JAMA Surg. Published 1 February 2024. doi:10.1001/jamasurg.2023.5951

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