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Related Experiment Videos

[Heart rupture after mitral valve replacement. Pathologic-anatomic findings]

C Kuhnen1, C Fakir, A Laczkovics

  • 1Institut für Pathologie der Berufsgenossenschaftlichen Kliniken Bergmannsheil, Ruhr-Universität, Bochum.

Der Pathologe
|May 1, 1997
PubMed
Summary

Left ventricular free wall rupture is a severe complication after mitral valve replacement. Preserving mitral valve apparatus, particularly chordae tendineae, can prevent this rupture by maintaining left ventricular integrity.

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Area of Science:

  • Cardiovascular Surgery
  • Cardiac Pathology
  • Surgical Complications

Background:

  • Mitral valve replacement is a common procedure, but carries risks.
  • Rupture of the left ventricular free wall is a rare yet serious complication.
  • Understanding the mechanism is crucial for prevention.

Observation:

  • Three cases of transverse midventricular disruption post-mitral valve replacement are presented.
  • Rupture occurred 1-12 hours after prosthesis implantation.
  • Histology revealed necrotic myocardium with interstitial bleeding and inflammation.

Findings:

  • Ventricular rupture was located between the mitral valve annulus and resected papillary muscles.
  • Coronary artery abnormalities and intraoperative lesions were excluded.

Related Experiment Videos

  • Loss of left ventricular contractile integrity after mitral valve apparatus resection, especially chordae tendineae, is the primary cause.

    • Implications:

    • This loss of integrity leads to regional myocardial stretching and subsequent rupture.
    • Limited resection of the mitral valve apparatus, preserving chordae tendineae, is recommended.
    • This approach may prevent devastating post-operative left ventricular free wall ruptures.