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Spontaneous Round-Shaped Left Atrial Hematoma.

Keisuke Kawaida1, Yukinori Moriyama1, Yoshihiro Fukumoto1

  • 1Division of Cardiovascular Surgery, National Hospital Organization, Kagoshima Medical Center, Kagoshima, Japan.

The International Journal of Angiology : Official Publication of the International College of Angiology, Inc
|December 30, 2016
PubMed
Summary

Spontaneously occurring left atrial hematomas are rare, often presenting acutely. This case details a unique, gradually developing hematoma successfully treated with emergency surgery.

Keywords:
cardiac surgerycardiovascular diseaseexcisionhemodynamicsrepairultrasound

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Area of Science:

  • Cardiology
  • Pathology

Background:

  • Spontaneously occurring left atrial hematomas are exceptionally rare clinical events.
  • Most documented cases exhibit an acute clinical course, often leading to hemodynamic compromise.

Observation:

  • A unique case of a gradually developing left atrial hematoma is presented.
  • The hematoma manifested as a round mass protruding into the left atrial cavity.
  • It was fully encapsulated by an intact endocardial wall.

Findings:

  • Emergency surgical intervention was successfully performed.
  • Histopathological examination revealed a subendocardial-aged hematoma.
  • Papillary endothelial hyperplasia was noted in conjunction with the hematoma.

Implications:

  • This case expands the understanding of left atrial hematoma presentation, highlighting a rare, gradual development.
  • Successful surgical management demonstrates a viable treatment option for such rare cardiac masses.
  • The histopathological findings offer insights into the potential pathogenesis and tissue response within these hematomas.