Outcomes after surgery in patients with previous stroke

Area of Science:

• Medical research
• Public health
• Surgical outcomes

Background:

• Limited data exists on stroke history and surgical outcomes.
• Investigating postoperative results in non-neurological surgery patients with prior stroke is crucial.

Purpose of the Study:

• To assess the association between a history of stroke and postoperative outcomes.
• To compare 30-day complications and in-hospital mortality in patients with and without previous stroke undergoing non-neurological surgery.

Main Methods:

• Nationwide cohort study using Taiwan's National Health Insurance Research Database (2008-2010).
• Propensity score-matched comparison of patients with and without stroke history undergoing non-neurological surgery.
• Analysis of 30-day postoperative complications and in-hospital mortality.

Main Results:

• Over 1.4 million surgeries analyzed; 45,420 patients had a prior stroke.
• Patients with stroke history showed increased risks of pneumonia, septicaemia, acute renal failure, myocardial infarction, and pulmonary embolism.
• 30-day in-hospital mortality was significantly higher in patients with prior stroke (adjusted RR 1.79).
• Intracerebral hemorrhage, intensive care, and recent stroke (1-6 months prior) further elevated mortality risk.

Conclusions:

• Previous stroke significantly increases the risk of adverse postoperative outcomes.
• 30-day in-hospital mortality nearly doubles for surgical patients with a stroke history.
• Risk stratification and tailored perioperative care are essential for these patients.