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Ann Thorac Surg 1998;66:1565-1570
© 1998 The Society of Thoracic Surgeons

Inoperable pulmonary vascular disease in infants with congenital heart disease

^a Department of Cardiology, Katta General Hospital, Shiroishi, Japan
^b Department of Thoracic and Cardiovascular Surgery, Tohoku University School of Medicine, Sendai, Japan

Accepted for publication May 18, 1998.

Address reprint requests to Dr Yamaki, Department of Thoracic and Cardiovascular Surgery, Tohoku University School of Medicine, 980-8574, Japan
e-mail: (s-heart{at}mail.cc.tohoku.ac.jp)

Background. Among 120 infants less than 12 months of age who had lung biopsy and autopsy, 20 were inoperable because of severe irreversible pulmonary vascular disease.

Methods. The infants were classified into three groups. Group 1 comprised 6 patients who showed complete obstruction of the small pulmonary arterial lumen and atrophy of the peripheral arterial media and who were considered to have absolute operative contraindications. Group 2 comprised 6 patients who had no pathologic findings of absolute operative contraindication and had an index of pulmonary vascular disease of more than 2.2. They were isolated as having advanced plexogenic pulmonary arteriopathy. Group 3 comprised 8 patients who had extremely thickened media of small pulmonary arteries, with abnormally thickened media extending into the small peripheral arteries characterized by extremely narrow lumina and medial thickness exceeding luminal diameter.

Results. Six of the 9 patients in whom operative repair was abandoned on the basis of preoperative or intraoperative lung biopsy are still alive. Of the 11 patients who underwent operation without biopsy, none survived.

Conclusions. Preoperative or intraoperative lung biopsy and assessment of arteriopathy based on the above criteria are recommended in all patients in whom fatal pulmonary vascular disease is suspected.

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