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Does immediate operation for symptomatic non-ruptured abdominal aortic aneurysm compromise outcome?
A L Tambyraja1, Z Raza, W P Stuart
1Department of Clinical and Surgical Sciences (Surgery), University of Edinburgh, Royal Infirmary of Edinburgh, UK. andrew.tambyraja@ed.ac.uk
Summary
Urgent surgery for symptomatic abdominal aortic aneurysms (AAA) is safe. Early operation for AAA in selected patients does not increase mortality compared to delayed surgery.
Area of Science:
- Vascular Surgery
- Aortic Aneurysm Research
- Surgical Timing Optimization
Background:
- Acutely symptomatic abdominal aortic aneurysms (AAA) present a dilemma regarding optimal surgical timing.
- The decision involves balancing the risk of rupture against the need for preoperative optimization of patient comorbidities.
Purpose of the Study:
- To compare in-hospital mortality rates between early (<24h) and delayed surgery for acutely symptomatic AAA.
- To evaluate the safety of immediate surgical intervention versus a period of preoperative assessment.
Main Methods:
- Retrospective case-cohort study of 95 patients with acutely symptomatic AAA (1995-2001).
- Comparison of mortality between patients undergoing surgery within 24 hours and those with planned delayed repair.
- Reasons for delay included cardiorespiratory assessment and radiological imaging.
Main Results:
- 70 patients had early surgery (<24h), 25 had delayed surgery (median 3 days).
- In-hospital mortality was 9% (6/70) for early surgery and 12% (3/25) for delayed surgery (P=0.694).
- No statistically significant difference in mortality was observed between the groups.
Conclusions:
- Early surgical intervention for selected patients with acutely symptomatic AAA is not associated with increased mortality.
- Urgent repair can be considered a safe option, challenging the necessity of routine delays for preoperative optimization.