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[Left ventricular rupture following mitral valve replacement]

Ryuji Kunitomo1, Michio Kawasuji

  • 1Department of Cardiovascular Surgery, Kumamoto University School of Medicine, Kumamoto, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery
|September 15, 2004
PubMed

Insights

Left ventricular rupture is a rare but fatal complication after mitral valve replacement. All 4 rupture cases occurred without concomitant operations, highlighting the need for careful surgical technique to prevent this adverse event.

Area of Science:

  • Cardiac Surgery
  • Cardiovascular Research
  • Surgical Complications

Context:

  • Mitral valve replacement (MVR) is a common cardiac procedure.
  • Left ventricular rupture is an uncommon yet severe complication post-MVR.
  • Understanding rupture mechanisms is crucial for improving patient outcomes.

Purpose:

  • To analyze the incidence and characteristics of left ventricular rupture after MVR.
  • To identify risk factors associated with left ventricular rupture.
  • To discuss surgical repair and prevention strategies.

Summary:

  • A retrospective study of 254 patients undergoing MVR between 1982 and 2004 identified 4 cases (1.6%) of left ventricular rupture.
  • All ruptures occurred in patients without concomitant operations.
  • Rupture types included Type I (mitral annulus over-excision) and Type III (strut impingement), with most occurring early post-operatively.
  • Surgical repair attempts were made, but mortality remained high due to low cardiac output syndrome and bleeding.

Impact:

  • This study underscores the critical importance of meticulous surgical technique during MVR, particularly regarding annular resection and prosthesis placement.
  • Findings emphasize the need for enhanced vigilance and potentially modified surgical approaches in patients undergoing isolated MVR to mitigate rupture risk.
  • Improved understanding of rupture mechanisms can guide the development of preventative measures and refine surgical repair strategies, potentially reducing mortality.

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