This single-center retrospective cohort study examines whether a Bilateral Modified Catheter Antegrade Cerebral Perfusion (Modified bACP) technique improves early clinical outcomes in adults undergoing emergency repair of acute Type A aortic dissection (ATAAD). Electronic medical records at China Medical University Hospital (CMUH) will be reviewed for all ATAAD operations performed between 1 January 2021 and 30 April 2025. Patients treated with Modified bACP will be compared with those managed by conventional perfusion strategies. The primary outcome is in-hospital stroke. Secondary outcomes include postoperative neurologic deficit, in-hospital mortality, 30-day mortality, hospital and ICU length of stay, mechanical-ventilation duration, need for tracheostomy, acute kidney injury, dialysis requirement, reoperation for bleeding, sepsis, atrial fibrillation, and myocardial infarction. Findings will clarify the efficacy and safety of Modified bACP and may inform future cerebral-protection protocols in aortic surgery.
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Postoperative Stroke
Timeframe: Through hospital discharge (average about 14 days post-surgery)