Perioperative medicine & outcomes

Preoperative cerebral oxygenation in high-risk noncardiac surgical patients: an observational study on postoperative mortality and complications

J Clin Monit ComputPublished Prospective observational study

Authors' conclusion

Preoperative rScO2 is not associated with postoperative complications in patients undergoing high-risk noncardiac surgery.

Study context

Population
Patients undergoing high-risk noncardiac surgery126 analysed
Participants
130 patients
Outcome
30-day mortality
Follow-up
30 days

Main finding

As reported in the abstract

Died within 30 postoperative days

6

4.76%

Observational data: associations, not effects.

Secondary outcomes

Postoperative myocardial injury, respiratory complications, renal failure

Major postoperative complications
32 (25.4%)
No significant association between rScO2 and secondary endpoints

ICU admission

Admitted to the ICU
95 (75.4%)

Determinants of rScO2

O2 supplementation induced a significant increase of rScO2
Hemoglobin (Hb) concentration correlated with rScO2; body position affected rScO2
No significant association between rScO2 and NYHA, LVEF or MET classes

Original publication

Preoperative cerebral oxygenation in high-risk noncardiac surgical patients: an observational study on postoperative mortality and complications. J Clin Monit Comput. Published 6 January 2023. doi:10.1007/s10877-022-00964-5

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