Related Experiment Videos
[External conduit repair with "valved pericardial roll"]
[Zasshi] [Journal]. Nihon Kyobu Geka Gakkai
|April 1, 1989
Summary
Valved pericardial roll (VPR) conduits, primarily using porcine pericardium, demonstrated effective external conduit repair in 20 patients. Long-term follow-up indicates good function with minimal pressure gradient increases, suggesting VPR as a viable surgical option.
Area of Science:
- Cardiovascular Surgery
- Biomaterials Science
- Medical Device Engineering
Context:
- External conduit repair is a critical procedure in cardiovascular surgery.
- Valved pericardial roll (VPR) prostheses offer a potential solution for conduit reconstruction.
- Assessing the long-term efficacy and hemodynamic performance of VPR is essential.
Purpose:
- To evaluate the intraoperative and postoperative hemodynamic performance of valved pericardial roll (VPR) conduits.
- To assess the functional integrity and durability of VPRs in external conduit repair.
- To analyze pressure gradients and regurgitation in patients undergoing VPR implantation.
Summary:
- Twenty patients underwent external conduit repair using VPRs (1 porcine pericardium, 19 autologous pericardium).
- Intraoperative peak pressure gradients across the valve averaged 1 mmHg (range 0-8), and right ventricular to pulmonary artery gradients averaged 20 mmHg (range 0-38).
- One-year follow-up in 7 patients showed stable pressure gradients, with mild to moderate regurgitation observed in most cases via echocardiography. The longest follow-up was 16 months.
Impact:
- VPRs demonstrate promising functional performance in external conduit repair.
- The study highlights the durability and safety of porcine pericardium-based VPRs.
- Findings support VPR as a viable option for complex cardiovascular reconstructions.