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Published on: March 28, 2025
Early entry closure for acute type B aortic dissection by open stent grafting
Naomichi Uchida1, Akira Katayama, Kentaro Tamura
1Division of Cardiovascular Surgery, Hiroshima Asa General Hospital, 2-1-1 Kabe-minami, Asa-kita-ku, Hiroshima 731-0293, Japan. uchidacvs@yahoo.co.jp
General Thoracic and Cardiovascular Surgery
|May 7, 2011
Summary
Early open stent grafting for acute type B aortic dissection effectively closes the entry tear, leading to complete false lumen thrombosis and acceptable long-term survival rates.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Vascular Surgery
Background:
- Acute type B aortic dissection (TBAD) requires effective treatment strategies.
- Open stent grafting is a potential option for managing TBAD.
Purpose of the Study:
- To evaluate the long-term efficacy of early entry closure for acute type B aortic dissection using open stent grafting.
- To assess changes in the false lumen on enhanced computed tomography (CT) post-procedure.
Main Methods:
- Open stent grafting was performed on 28 patients with acute type B aortic dissection between 1998 and 2008.
- Patients included those with complicated (ischemia, rupture) and uncomplicated dissections.
- Follow-up included enhanced CT scans to evaluate aortic remodeling.
Main Results:
- The 30-day mortality was 7% (2 patients).
- Overall 5-year survival rate was 77%.
- Complete false lumen thrombosis and obliteration were observed in all 26 patients with stent grafts on follow-up CT.
Conclusions:
- Early entry closure with open stent grafting offers acceptable early outcomes for acute type B aortic dissection.
- This approach achieves a high rate of aortic remodeling, indicated by false lumen thrombosis.
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