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Updated: Jul 15, 2026

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
Published on: March 28, 2025
[Early and late sugical results of emergency operation for acute type A aortic dissection]
Ikuo Katayama1, T Kanamori, T Inoue
1Department of Cardiovascular Surgery, Cardiovascular/Aortic Center, Chiba-Nishi General Hospital, Matsudo, Japan.
Insights
Emergency surgery for acute type A aortic dissection had a 13.6% mortality rate. Malperfusion significantly increased mortality risk, highlighting the need for prompt intervention in these complex aortic dissection cases.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Aortic Disease
Context:
- Acute type A aortic dissection is a life-threatening condition requiring emergent surgical repair.
- This study analyzes outcomes from a single center over a four-year period.
Purpose:
- To evaluate the hospital mortality rates and outcomes of emergency surgical operations for acute type A aortic dissection.
- To identify factors associated with increased mortality, specifically malperfusion and its subtypes.
Summary:
- A total of 213 patients underwent emergency surgery for acute type A aortic dissection.
- Overall hospital mortality was 13.6%, but significantly higher (31.9%) in patients with malperfusion.
- Specific malperfusion types like stroke and intestinal ischemia had very high mortality rates (47.1% and 66.7% respectively).
- Cases without cardiac tamponade and malperfusion had the lowest mortality (2.9%).
Impact:
- Identifies malperfusion as a critical predictor of mortality in acute type A aortic dissection.
- Provides data supporting the urgency of addressing malperfusion during aortic dissection repair.
- Informs surgical decision-making and risk stratification for patients with acute type A aortic dissection.
Abstract:
We evaluated the results of 213 emergency operations of acute type A aortic dissection in our center from January 2003 to December 2006. They were 101 male and 112 female, and the mean age was 64.6 years. The hospital mortality rate of all cases was 13.6% (29/213). And that of cases with malperfusion was 31.9% (15/47). They consisted of stroke 8/17 (47.1%), myocardial ischemia 5/27 (18.5%) [right coronary artery: 2/22 (9.1%), left main trunk: 3/5 (60.0%)], and intestinal ischemia 2/3 (66.7%). The hospital mortality rate of pulseless electrical activity (PEA) cases was 57.1% (4/7), and that of aortic rupture cases was 33.3% (3/9). On the other hand, the mortality rate of cases with cardiac tamponade alone was 4/45 (8.9%). That of cases without cardiac tamponade and malperfusion was 3/105 (2.9%), and was significantly (p < 0.05) lower than that with malperfusion.
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