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Related Experiment Videos

Morbidity following the Ross operation.

L Gonzalez-Lavin1, A Robles, D Graf

  • 1Department of Surgery, Deborah Heart and Lung Center, Browns Mills, NJ 08015.

Journal of Cardiac Surgery
|September 1, 1988
PubMed
Summary
This summary is machine-generated.

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The Ross procedure, using a pulmonary valve autograft (PVA) for aortic valve replacement (AVR), shows no degeneration in long-term follow-up. This suggests PVA is a durable option, potentially avoiding immune-related calcification seen in other biological valves.

Area of Science:

  • Cardiovascular Surgery
  • Thoracic Surgery
  • Cardiac Valve Repair

Background:

  • Aortic valve replacement (AVR) often involves biological valves prone to degeneration.
  • The pulmonary valve autograft (PVA) procedure, or Ross operation, was developed to mitigate these issues.
  • Previous reports suggested PVA's resistance to degenerative changes.

Purpose of the Study:

  • To evaluate the long-term fate and durability of pulmonary valve autografts (PVA) used in aortic valve replacement (AVR).
  • To corroborate findings on the lack of degenerative changes in PVAs.
  • To investigate the potential immunological mechanisms behind biological valve degeneration.

Main Methods:

  • Retrospective analysis of 12 patients who underwent AVR with PVA between March 1969 and June 1971.

Related Experiment Videos

  • Right ventricular outflow tract (RVOT) reconstruction using an aortic homograft valved conduit.
  • Mean follow-up of 12.4 years for hospital survivors, including clinical assessment and histological examination of explanted valves.

    • Main Results:

    • Six out of 12 patients (55%) remained alive with their original PVA at 12 years.
    • Three PVAs required replacement: one due to endocarditis (13 years) and two due to technical issues (15 and 73 months).
    • Histological examination of explanted PVAs showed no signs of degeneration.

    Conclusions:

    • The pulmonary valve autograft (PVA) demonstrates excellent long-term durability in aortic valve replacement (AVR).
    • The findings support the hypothesis of an immunological mechanism contributing to the degeneration of other biological tissue valves.
    • The Ross operation is considered a preferred AVR method for younger patients due to its durability and potential to avoid calcification.