research
The Quiet Brain Damage Spoke Before Surgery
A heavier small-vessel disease burden on preoperative MRI was associated with nearly doubled odds of delirium after noncardiac surgery.
Summary
A heavier small-vessel disease burden on preoperative MRI was associated with nearly doubled odds of delirium after noncardiac surgery.
A prospective study followed 804 adults ages 65 to 85 undergoing elective noncardiac surgery at five academic centers in China. Sixty-nine patients, or 9 percent, developed delirium during the first three postoperative days. The rate rose to 28 percent among those with the highest MRI-measured small-vessel disease burden, and high burden was associated with an adjusted odds ratio of 1.95; lacunes had the strongest individual association. The result identifies a preexisting risk marker, not a causal mechanism, a validated individual prediction rule or a recommendation for routine MRI screening.
Why it matters
A heavier small-vessel disease burden on preoperative MRI was associated with nearly doubled odds of delirium after noncardiac surgery.
Limits and context
- A prospective study followed 804 adults ages 65 to 85 undergoing elective noncardiac surgery at five academic centers in China.
- The result identifies a preexisting risk marker, not a causal mechanism, a validated individual prediction rule or a recommendation for routine MRI screening.
Key claims
A heavier small-vessel disease burden on preoperative MRI was associated with nearly doubled odds of delirium after noncardiac surgery.
Qualification: A prospective study followed 804 adults ages 65 to 85 undergoing elective noncardiac surgery at five academic centers in China.
Evidence: source-2026-08-04-001
Sources
- Anesthesiology: cerebral small-vessel disease and postoperative deliriumWolters Kluwer Health · secondary reporting
Corrections
No corrections have been recorded for this story.