Research Article
International Heart Valve Bank Survey: A Review of Processing Practices and Activity Outcomes
Table 11
Reasons for product failure and why released products were not implanted.
| Reasons for product failure | Number of HVBs | Reasons why released products were not implanted | Number of HVBs |
| During evaluation of tissue and processing | | Uncontrollable factors | | Abnormal morphology | 10 | Size demands for valves | 11 | Failure in valve competency | 3 | Aortic valve/nonvalve products not in demand | 10 | Technical issues | 3 | Beyond maximum storage duration | 5 | Deferred due to size/type of graft | 1 | Decision during surgery | 4 |
| After tissue processing | | Factors that can be improved on | | Positive microbiological results of graft | 21 | Damage of graft during thawing | 1 | Positive serology results of donor | 5 | Intraoperative contamination of graft | 1 | Quality/donor related | 3 | Incorrect size of graft | 1 | Quality of graft | 1 |
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