Perioperative medicine & outcomes

The Role of Sleep Apnea in Postoperative Neurocognitive Disorders Among Older Noncardiac Surgery Patients: A Prospective Cohort Study

Anesth AnalgPublished Prospective cohort study

An erratum to this article was published (Anesth Analg, 1 May 2025 ↗)

Authors' conclusion

In this older noncardiac surgery cohort, untreated sleep apnea was not associated with increased incidence or severity of postoperative neurocognitive disorder or delirium.

Study context

Population
Older noncardiac surgery patients aged 60 years and above with preoperative home sleep apnea testing58 positive for sleep apnea
Participants
96 patients
Exposure
Severity of untreated OSA and postoperative neurocognitive disorder
Outcome
Postoperative neurocognitive disorder severity (global cognitive change from before to after surgery)
Follow-up
6 weeks
Methodological detailssingle-centre
  • Single-centre

Main finding

As reported in the abstract

PND severity (global cognitive change)
  • Sleep apnea severity not associated with increased PND severity at 6 weeks
  • Sleep apnea severity: 95% CI −0.02 to 0.03; P = 0.79
  • Sleep apnea severity: 95% CI −0.02 to 0.04; P = 0.40

Observational data: associations, not effects.

Further findings

PND incidence (mild or major) · 6 weeks and 1 year

OR (95% CI)P value
Sleep apnea severity6 weeks; multivariable0.89 (0.59–1.14)P = 0.45
Sleep apnea severity1 year; multivariable1.01 (0.81–1.24)P = 0.90

Postoperative delirium incidence and severity

OR (95% CI)P value
Sleep apnea severityDelirium incidence; univariable0.88 (0.59–1.10)P = 0.37
Sleep apnea severityDelirium incidence; multivariable1.07 (0.81–1.38)P = 0.74
Sleep apnea severityDelirium severity; multivariable0.95 (0.81–1.10)P = 0.48
OutcomeEstimateP value
PND severity (global cognitive change) · 1 yearSleep apnea severity · univariable(95% CI −0.02 to 0.03)P = 0.70
PND severity (global cognitive change) · 1 yearSleep apnea severity · adjusted for age, sex, baseline cognition, surgery duration(95% CI −0.02 to 0.04)P = 0.55
Postoperative delirium incidence and severitySleep apnea severity · delirium severity; univariable(95% CI −0.02 to 0.03)P = 0.79

Original publication

The Role of Sleep Apnea in Postoperative Neurocognitive Disorders Among Older Noncardiac Surgery Patients: A Prospective Cohort Study. Anesth Analg. Published 22 November 2024. doi:10.1213/ane.0000000000007269

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