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David N. Murphy
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Right arrow Congenital - acyanotic

Ann Thorac Surg 2004;77:29-35
© 2004 The Society of Thoracic Surgeons

Original article: cardiovascular

Successful early surgical recruitment of the congenitally disconnected pulmonary artery

David N. Murphy, MBBSa, David S. Winlaw, MBBS, MDa*, Steve G. Cooper, MB ChBa, Graham R. Nunn, MBBSa

a Adolph Basser Cardiac Institute, Children's Hospital at Westmead, Sydney, Australia

Accepted for publication July 29, 2003.

* Address reprint requests to Dr Winlaw, Adolph Basser Cardiac Institute, Children's Hospital at Westmead, Locked Bag 4001, Westmead NSW 2145, Australia
e-mail: davidw{at}chw.edu.au

BACKGROUND: Our purpose was to document our experience with early recruitment of congenitally disconnected pulmonary arteries and to assess subsequent pulmonary artery growth and function.

METHODS: Patients born in the 10-year period from 1989 to 1999 with a disconnected pulmonary artery diagnosed in infancy and treated in our unit were studied. To be included patients had nonconfluent pulmonary arteries with one or both completely disconnected from the main pulmonary artery. This series did not include patients with acquired stenosis causing occlusion of a pulmonary artery. Echocardiography, cardiac catheterization, MRI, lung perfusion scans, and intraoperative assessment were used to gauge pulmonary artery growth and function.

RESULTS: Seven patients with a disconnected pulmonary artery associated with intracardiac conotruncal congenital cardiac disease underwent successful early surgical recruitment of the affected pulmonary artery at 3 months of age or younger. Median follow-up from date of first operation was 4.2 years (range, 1.6 to 13.4). All 7 patients had postrecruitment lung perfusion scans showing a mean of 44% (range, 27% to 78%) of total pulmonary flow through the affected lung. Significant growth in the diameter of the recruited native pulmonary artery was demonstrated in all patients. There were no deaths reported in our series to date.

CONCLUSIONS: The rare possibility of a congenitally disconnected pulmonary artery needs to be considered in all patients with a conotruncal cardiac anomaly. To facilitate surgical correction, ensure subsequent growth of the pulmonary artery, and optimize associated lung development, early diagnosis and surgical recruitment is recommended.




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