Related Experiment Video
Updated: May 9, 2026

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
Published on: March 28, 2025
Acute aortic dissection type A with acute coronary involvement: a novel classification.
Ying-Fu Chen1, Tsu-Ming Chien, Cai-Pei Yu
1Division of Cardiovascular Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung Taiwan.
Acute coronary involvement in aortic dissection type A is a serious condition. Patients with this complication are younger and have higher rates of aortic regurgitation, aiding surgical decisions.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Aortic Disease
Background:
- Acute aortic dissection (AAD) type A can involve the coronary arteries, posing a significant risk.
- Acute coronary involvement (ACI) in AAD type A is a potentially fatal complication.
- Understanding the characteristics of ACI in AAD type A is crucial for patient management.
Purpose of the Study:
- To determine the specific characteristics of patients experiencing acute coronary involvement (ACI) secondary to acute aortic dissection (AAD) type A.
- To identify demographic, clinical, and pathological features associated with ACI in AAD type A.
Main Methods:
- Retrospective analysis of 142 patients surgically treated for AAD type A between 1997 and 2011.
- Inclusion of 20 patients (14.1%) who presented with ACI.
- Comparison of patient demographics, clinical presentation, and outcomes between groups with and without ACI.
Main Results:
- Patients with ACI were significantly younger (51.8 vs. 61.0 years) and had a higher rate of aortic regurgitation (95.0% vs. 53.5%).
- Intramural hematoma was less common in patients with ACI (5.0% vs. 32.8%).
- In-hospital mortality rates were similar between patients with and without ACI (20.0% vs. 19.7%).
Conclusions:
- Acute coronary involvement in AAD type A is not invariably linked to coronary malperfusion.
- Key differentiating factors for ACI include younger age, higher aortic regurgitation, and lower prevalence of intramural hematoma.
- A novel 4-category classification scheme based on surgical pathology is proposed to aid treatment decisions for this patient cohort.
Related Concept Videos
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations
Aortic Regurgitation I: Introduction
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Acute Coronary Syndrome I: Introduction
Aneurysm I: Introduction
Aneurysm II: Clinical Manifestations and Diagnostic Studies
