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Management strategies for non-A non-B aortic dissection: a comprehensive review

Tan Liu1, Yucheng Hou2, Weijuan Lian3

  • 1Department of Cardiovascular Surgery, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China. liutan0211@126.com.

Journal of Cardiothoracic Surgery
|June 3, 2026
PubMed

Insights

Non-A non-B aortic dissection presents unique challenges beyond standard classifications. This review explores evidence on managing these complex cardiovascular emergencies, emphasizing personalized treatment strategies.

Area of Science:

  • Cardiovascular Medicine
  • Vascular Surgery

Background:

  • Aortic dissection (AD) is a critical cardiovascular emergency.
  • Stanford classification divides AD into Type A (ascending aorta) and Type B (descending aorta).
  • A subset of AD cases, termed non-A non-B aortic dissection, presents atypical features and challenges traditional classification.

Purpose of the Study:

  • To review current evidence on non-A non-B aortic dissection.
  • To discuss epidemiology, pathophysiology, diagnostics, and management strategies.
  • To highlight the need for individualized treatment approaches.

Main Methods:

  • Literature review of contemporary evidence.
  • Synthesis of data on non-A non-B aortic dissection.
  • Analysis of diagnostic and therapeutic modalities.

Main Results:

  • Non-A non-B aortic dissections often involve the aortic arch with complex features.
  • Management options include open surgery, TEVAR, hybrid procedures, and medical management.
  • Optimal treatment strategies for these atypical dissections are debated.

Conclusions:

  • Non-A non-B aortic dissection requires careful consideration due to its complexity.
  • Individualized management is crucial for optimal patient outcomes.
  • Further research is needed to refine treatment guidelines.

Keywords:
Aortic dissectionFrozen elephant trunkHybridNon-A non‐B aortic dissectionThoracic endovascular aortic repair

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