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Custom-tailored valved conduit for complex aortic root disease.

George Krasopoulos1, Tirone E David, Susan Armstrong

  • 1Division of Cardiovascular Surgery of Peter Munk Cardiac Centre at University Health Network, Toronto, Ontario, Canada.

The Journal of Thoracic and Cardiovascular Surgery
|January 9, 2008
PubMed
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Custom Dacron grafts offer a safe solution for complex aortic root and left ventricular outflow tract reconstruction. This technique is effective for patients with severe aortoventricular junction disease.

Area of Science:

  • Cardiovascular Surgery
  • Biomaterials in Medicine
  • Prosthetic Valve Surgery

Background:

  • Standard aortic valve conduits may not suit complex aortoventricular junction reconstructions.
  • Patients with destroyed aortoventricular junctions require specialized surgical approaches.

Purpose of the Study:

  • To evaluate the efficacy and safety of custom-made Dacron grafts for simultaneous left ventricular outflow tract reconstruction and aortic root replacement.
  • To present surgical experience in complex aortoventricular junction disease.

Main Methods:

  • Utilized tailored tubular Dacron grafts for left ventricular outflow tract reconstruction in 27 patients.
  • Sutured grafts to the interventricular septum and mitral valve sewing ring, reimplanted coronary arteries, and inserted mechanical or bioprosthetic valves.

Related Experiment Videos

  • Median follow-up of 32 months with echocardiography.

    • Main Results:

    • Achieved a low operative mortality rate with 3 deaths; no late deaths were recorded.
    • 24 out of 27 patients survived with normally functioning aortic valve prostheses and no false aneurysms.
    • One patient needed reoperation due to patch dehiscence.

    Conclusions:

    • Intraoperatively tailored Dacron grafts are a useful and safe technique for complex aortic root and left ventricular outflow tract reconstruction.
    • This method addresses destroyed aortoventricular junctions effectively.
    • Custom conduits provide a viable solution for challenging cardiovascular surgical cases.