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Excessive strut wear allowing ball-poppet embolization in a DeBakey-Surgitool aortic valve prosthesis
The Journal of Cardiovascular Surgery
|March 1, 1982
Insights
Sudden death occurred due to aortic prosthesis strut wear and embolization. Regular fluoroscopy is recommended for patients with DeBakey-Surgitool aortic prostheses to detect wear and prevent complications.
Area of Science:
- Cardiovascular Surgery
- Biomedical Engineering
- Medical Device Safety
Background:
- Aortic valve prostheses are crucial for treating aortic valve disease.
- The DeBakey-Surgitool aortic prosthesis was implanted in a 47-year-old female patient nine years prior to the event.
- Mechanical prosthetic valves require long-term monitoring for potential complications.
Observation:
- The patient experienced sudden death due to a complication with her aortic prosthesis.
- The specific issue identified was excessive cage strut wear.
- This wear led to ball-poppet embolization, a critical failure mode.
Findings:
- The DeBakey-Surgitool aortic prosthesis exhibited significant cage strut wear.
- Embolization of the ball-poppet occurred as a direct result of the strut wear.
- This mechanical failure resulted in a fatal outcome for the patient.
Implications:
- Periodic valvular cine fluoroscopy with image intensification is crucial for monitoring DeBakey-Surgitool aortic prostheses.
- Early detection of significant strut wear or fracture can prevent catastrophic device failure.
- Prompt prosthetic valve replacement should be considered when wear is identified to ensure patient safety.
Abstract:
Excessive cage strut wear allowing ball-poppet embolization caused the sudden death of a 47 year old lady in whom a DeBakey-Surgitool aortic prosthesis had been implanted nine years earlier. Patients with this type of prosthesis should have periodic valvular cine fluoroscopy with image intensification to allow visualization of significant strut wear or fracture, and appropriate prosthetic valve replacement.