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Rapid onset of pulmonary arteriovenous malformations after cavopulmonary anastomosis

U M Pandurangi1, M J Shah, R Murali

  • 1Institute of Cardiovascular Diseases, Madras Medical Mission, India.

The Annals of Thoracic Surgery
|July 27, 1999
PubMed

Insights

Pulmonary arteriovenous malformations (PAVMs) rarely develop after superior cavopulmonary anastamosis in heterotaxia patients. This case shows rapid PAVM development in an adolescent within 72 hours post-Kawashima procedure.

Area of Science:

  • Cardiovascular Surgery
  • Pediatric Cardiology
  • Congenital Heart Disease

Background:

  • Heterotaxia syndrome presents complex congenital heart defects.
  • Superior cavopulmonary anastamosis (SCPA) is a palliative surgical procedure.
  • Pulmonary arteriovenous malformations (PAVMs) are a known complication post-SCPA, typically with gradual onset.

Observation:

  • This report details an adolescent patient with heterotaxia syndrome.
  • The patient underwent bilateral SCPA, also known as the Kawashima procedure.
  • PAVMs were observed to develop unusually rapidly, within 72 hours post-surgery.

Findings:

  • The incidence of PAVMs post-SCPA in heterotaxia is reported between 18%-21%.
  • This case demonstrates an atypical, rapid onset of PAVMs.
  • PAVM development occurred within 72 hours, contrasting with the usual gradual manifestation.

Implications:

  • Rapid PAVM development necessitates prompt recognition and management strategies.
  • The Kawashima procedure in adolescents with heterotaxia may carry a risk of acute PAVM formation.
  • Further research is needed to understand the mechanisms and risk factors for rapid PAVM development post-SCPA.

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