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Related Experiment Videos

Autopsies in acute type A aortic dissection. Surgical implications

G S Van Arsdell1, T E David, J Butany

  • 1Division of Cardiac Surgery, Toronto Hospital, Ontario, Canada.

Circulation
|December 16, 1998
PubMed
Summary

Operative therapy for acute Stanford type A dissection reduces mortality from rupture. An open arch repair with antegrade perfusion minimizes risks of false lumen perfusion and neurological injury.

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Area of Science:

  • Cardiovascular Surgery
  • Thoracic Surgery
  • Anatomic Pathology

Background:

  • Acute Stanford type A dissection presents significant mortality risks.
  • Autopsy review is crucial for understanding outcomes of operative and nonoperative management.
  • Defining anatomic pathology guides surgical and perfusion strategies.

Purpose of the Study:

  • To review autopsy findings in acute Stanford type A dissection.
  • To define the anatomic pathology and causes of death.
  • To evaluate theoretical implications of surgical and perfusion strategies.

Main Methods:

  • Retrospective review of 50 autopsies for acute type A dissection (1977-1995).
  • Comparison of outcomes between nonoperated (n=29) and operated (n=21) groups.

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  • Analysis of intimal disruption sites and theoretical perfusion risks.

    • Main Results:

    • Nonoperated group: 79% died from tamponade or rupture.
    • Operated group: 5% died from rupture; 33% each from brain injury and cardiac failure.
    • Intimal disruption present in 92%; secondary sites in 24%.
    • Theoretical open arch repair minimized distal intimal disruption risk (16%).

    Conclusions:

    • Surgical intervention effectively addresses the primary cause of death in acute type A dissection.
    • Open arch repair with antegrade perfusion offers theoretical advantages.
    • This approach may reduce neurological injury and distal anastomosis bleeding, improving patient outcomes.