Perioperative medicine & outcomes

Sleep Apnea-Specific Hypoxic Burden and Postoperative Outcomes of Major Noncardiothoracic Surgery

JAMA Netw OpenPublished Multicentre clinic-based cohort study

Authors' conclusion

Among OSA patients undergoing major noncardiothoracic surgery, SASHB was significantly associated with the risk of 30-day postoperative mortality and CV complications.

Study context

Population
Adults diagnosed with obstructive sleep apnea (OSA) (May 2007–December 2018) who underwent major noncardiothoracic surgery between diagnosis and December 2024
Participants
2,286 adults
Exposure
Higher vs low sleep apnea-specific hypoxic burden at OSA diagnosis
Outcome
Composite of:
  • Stroke
  • AF
  • HF
  • MI
  • VTE
  • All-cause mortality
Follow-up
30 days of surgery
Methodological detailslinked with health administrative database
  • Linked with health administrative database

Main finding

As reported in the abstract

30 days
Each group vs low SASHBAdjusted odds ratio (95% CI)
SASHB 32 to <80%
1.76(0.86–3.59)
High SASHB
2.79(1.42–5.49)
Primary outcome overall
80 patients (3.5%)

Observational data: associations, not effects.

Further findings

Risk score (age, emergency admission before surgery, sleep apnea-specific hypoxic burden (SASHB)) for primary outcome

AUC
0.73; 95% CI, 0.68-0.77

Simplified SASHB derived from single oximetry signal

Similar findings

Original publication

Sleep Apnea-Specific Hypoxic Burden and Postoperative Outcomes of Major Noncardiothoracic Surgery. JAMA Netw Open. Published 2 February 2026. doi:10.1001/jamanetworkopen.2026.0006

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