Related Experiment Video
Updated: Jun 27, 2026

O-Ring Aortic Banding Versus Traditional Transverse Aortic Constriction for Modeling Pressure Overload-Induced Cardiac Hypertrophy
Published on: October 6, 2022
[A new technique of aortic occlusion in patient with severe aortic calcification]
S Morizumi1, T Konishi, H Furukawa
1Department of Cardiovascular Surgery, Tsukuba Memorial Hospital, Tsukuba, Japan.
Insights
A novel hand-made aortic occluder effectively prevented stroke during complex heart surgery for severe aortic calcification. This technique offers a promising solution for high-risk patients undergoing aortic valve replacement and bypass procedures.
Area of Science:
- Cardiovascular Surgery
- Medical Device Innovation
- Aortic Valve Disease
Background:
- Severe aortic calcification poses significant challenges during aortic valve replacement and bypass surgery.
- Traditional methods for aortic occlusion may be insufficient or increase embolic risk in highly calcified aortas.
Observation:
- A 63-year-old female patient presented with severe aortic valve insufficiency and bilateral subclavian artery occlusion.
- Simultaneous ascending aorta-to-biaxillary artery bypass and aortic valve replacement were performed.
- A unique, hand-made aortic occluder was employed due to severe aortic calcification.
Findings:
- The hand-made aortic occluder successfully prevented embolic stroke during the complex surgical procedure.
- This innovative technique facilitated safe and effective management of severe aortic calcification.
Implications:
- The developed hand-made aortic occluder represents a potentially valuable tool for managing patients with severe aortic calcification.
- This approach may improve outcomes and reduce stroke risk in similar complex cardiovascular surgeries.
- Further research and validation of this technique are warranted for broader clinical application.
Abstract:
A 63-year-old woman with severe aortic valve insufficiency and bilateral subclavian artery occlusion underwent ascending aorta-to-biaxillary artery bypass and aortic valve replacement, simultaneously. Because of severe aortic calcification, a hand-made aortic occluder was utilized to prevent embolic stroke. We believe that the new technique of aortic occllusion might be very useful for patients with severe aortic calcification.

