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Updated: Jun 13, 2026
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Murine Model of Thoracic Aortic Dissection Induced by Oral β-Aminopropionitrile and Subcutaneous Angiotensin II Infusion
Published on: May 16, 2025
Controllable and uncontrollable Stanford type B aortic dissection in canine models
1Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China. drtangjingdong @ 126.com
Summary
Researchers developed new animal models for Stanford type B aortic dissection, offering a stable and realistic simulation for studying this critical cardiovascular condition.
Area of Science:
- Cardiovascular Research
- Surgical Innovation
- Animal Modeling
Background:
- Stanford type A and B aortic dissections are distinct conditions.
- Existing animal models do not adequately replicate human aortic dissection.
- A need exists for reliable models to study aortic dissection.
Purpose of the Study:
- To develop and validate animal models for Stanford type B aortic dissection.
- To create both controllable and uncontrollable dissection models.
- To provide a platform for further research into aortic dissection.
Main Methods:
- Two groups of beagle dogs were used: uncontrollable (n=12) and controllable (n=8) dissection models.
- A self-made separator created a false lumen.
- Epinephrine injection (uncontrollable) or saline/balloon catheter (controllable) induced dissection.
Main Results:
- Autopsy confirmed Stanford type B dissection in all models.
- Digital subtraction angiography (DSA) confirmed dissection in 9/12 uncontrollable and 6/8 controllable models.
- Dissection occlusion occurred by 4 weeks in the controllable model survivors.
Conclusions:
- An easy and stable animal model for Stanford type B aortic dissection was successfully developed.
- The model creates a significant false lumen, closely resembling human aortic dissection.
- This model offers a valuable tool for investigating aortic dissection.
