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Related Experiment Video

Updated: Jan 21, 2026

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
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Closing the gap between type A and type B aortic dissections.

Davide Carino1, Manuel Castellà, Eduard Quintana

  • 1Department of Cardiovascular Surgery, Institut Clínic Cardiovascular, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain.

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|August 8, 2019
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Acute non-A non-B aortic dissections have high mortality with medical management. Early surgical or endovascular treatment, including thoracic endovascular aortic repair (TEVAR) or frozen elephant trunk (FET) techniques, offers improved outcomes.

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Area of Science:

  • Cardiovascular Surgery
  • Vascular Surgery
  • Aortic Diseases

Background:

  • Acute non-A non-B aortic dissections are rare, with limited understanding of their natural history and treatment outcomes.
  • These dissections require differentiation from Type B dissections due to distinct clinical trajectories.

Purpose of the Study:

  • To review current knowledge on the natural history, surgical indications, and outcomes of acute non-A non-B aortic dissections.
  • To compare the prognosis of non-A non-B dissections with Type B dissections.

Main Methods:

  • Literature review of studies on acute non-A non-B aortic dissections.
  • Analysis of treatment strategies including medical, open surgical, and endovascular approaches.

Main Results:

  • Patients with non-A non-B dissections have a high complication rate and significantly higher mortality with medical therapy compared to Type B dissections.
  • Surgical and endovascular treatments, such as thoracic endovascular aortic repair (TEVAR) and frozen elephant trunk (FET) techniques, are safe and effective in the acute setting.
  • Treatment options include TEVAR with chimney grafts, carotid to subclavian bypass, open arch replacement with FET, and hybrid arch repair.

Conclusions:

  • Early invasive treatment for non-A non-B dissections should be considered due to high complication rates and mortality with medical management.
  • Treatment selection should be based on aortic morphology: TEVAR for distal lesions and FET for proximal lesions.