Related Experiment Videos
Leaflet escape in Omnicarbon monoleaflet valve
A Kornberg1, S M Wildhirt, C Schulze
1Department of Cardiac Surgery Klinikum Grosshadern, Ludwig-Maximilian-University, Munich, Germany.
Summary
Mechanical heart valves can fail. This case shows the first reported leaflet fracture in an Omnicarbon monoleaflet valve, leading to aortic embolization and requiring emergency surgery for complete recovery.
Area of Science:
- Cardiovascular Surgery
- Biomedical Engineering
- Medical Device Failure Analysis
Background:
- Mechanical heart valves are widely used to replace damaged native valves.
- While generally durable, mechanical disruptions have been reported across various artificial valve types.
- Monoleaflet valves, like the Omnicarbon, are a specific design used in cardiac procedures.
Observation:
- A 22-year-old male presented with acute respiratory insufficiency.
- The patient had an Omnicarbon monoleaflet valve implanted 42 months prior.
- Symptoms developed suddenly despite previous good health.
Findings:
- The primary finding was leaflet fracture of the Omnicarbon monoleaflet valve.
- The fractured leaflet embolized to the abdominal aorta.
- Diagnosis was confirmed using transesophageal echocardiography (TEE) and abdominal sonography.
Implications:
- This case represents the first documented instance of leaflet fracture and subsequent aortic embolization with this specific valve model.
- Prompt diagnosis and surgical intervention (valve replacement and foreign body extraction) led to a successful outcome.
- Highlights the importance of monitoring for rare mechanical failures in long-term implanted devices.