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Related Experiment Videos

Left atrial dissection after double valve replacement.

Mikio Ninomiya1, Shinichi Takamoto, Yutaka Kotsuka

  • 1Department of Cardiothoracic Surgery, Faculty of Medicine, University of Tokyo, Tokyo, Japan. mikio-ninomiya@par.odn.ne.jp

The Annals of Thoracic Surgery
|February 28, 2003
PubMed
Summary

Left atrial dissection is a rare complication after heart valve surgery. This case report details a patient with connective tissue disease who developed dissection after double valve replacement, improving without surgery.

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Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Connective Tissue Diseases

Background:

  • Left atrial dissection is a rare but serious complication, typically seen after mitral valve repair.
  • Connective tissue diseases, such as systemic sclerosis, can predispose patients to cardiovascular complications.
  • Double valve replacement is a complex cardiac surgical procedure with potential for various complications.

Observation:

  • A 63-year-old female patient with systemic sclerosis underwent double valve replacement.
  • Postoperatively, laceration between mechanical prostheses and left atrial wall dissection were identified.
  • The dissection led to significant regurgitation and subsequent heart failure.

Findings:

  • The patient's heart failure, caused by dissection-related regurgitation, improved conservatively without surgical intervention.

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  • Potential etiologies for the left atrial dissection include mechanical shear forces and tissue fragility.
  • Systemic sclerosis and corticosteroid therapy were identified as contributing factors to tissue fragility.

    • Implications:

    • This case highlights the possibility of left atrial dissection after double valve replacement, particularly in patients with connective tissue disorders.
    • Conservative management may be a viable option for certain cases of post-operative left atrial dissection.
    • Understanding the role of systemic diseases and medications in iatrogenic cardiac injury is crucial for surgical planning and patient care.