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Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
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Extended versus limited arch replacement in acute Type A aortic dissection.

Magnus Larsen1,2, Santi Trimarchi3, Himanshu J Patel4

  • 1Department of Cardiothoracic and Vascular Surgery, University Hospital North Norway, Tromsø, Norway.

European Journal of Cardio-Thoracic Surgery : Official Journal of the European Association for Cardio-Thoracic Surgery
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Summary

Extended aortic arch repair in acute DeBakey Type I aortic dissection showed no short-term disadvantages compared to limited repairs. Further research is needed to determine long-term benefits of complete arch surgery.

Keywords:
Aortic archAortic dissectionAortic operationOutcomes

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Area of Science:

  • Cardiovascular Surgery
  • Thoracic Surgery
  • Aortic Dissection Research

Background:

  • The optimal surgical strategy for acute DeBakey Type I aortic dissection, specifically the extent of aortic arch resection and reconstruction, remains debated.
  • Recent trends suggest a move towards more extensive arch operations in certain institutions.

Purpose of the Study:

  • To analyze data from the International Registry of Acute Aortic Dissection (IRAD) to assess procedural trends.
  • To compare short- and mid-term surgical outcomes between limited aortic arch repair and extended (complete) arch surgery.

Main Methods:

  • Analysis of 1241 patients from the IRAD 'Interventional Cohort' (March 1996-March 2015).
  • Group A: 907 patients with ascending aorta or hemiarch replacement. Group B: 334 patients with extended arch replacement.
  • Propensity-adjusted multivariable comparisons and Kaplan-Meier survival analyses were employed.

Main Results:

  • In-hospital mortality was 14.2% overall, with no significant difference between groups (Group A: 13.1%, Group B: 17.1%).
  • Predictors of in-hospital mortality included coma/altered consciousness, hypotension, tamponade/shock, and pulse deficits.
  • Five-year survival was comparable (69.4% vs. 73.1%), as was freedom from death, rupture, or reintervention at 5 years (71.1% vs. 76.4%) for survivors.

Conclusions:

  • Selective extended aortic arch replacement, based on surgeon's judgment, did not demonstrate acute negative outcomes compared to less extensive procedures.
  • The long-term prognostic advantage, beyond 5 years, of extended arch replacement requires further investigation.