Blalock–Hanlon procedure

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Blalock–Hanlon procedure
ICD-9-CM 35.42

The Blalock–Hanlon procedure is a form of heart surgery.

It involves the intentional creation of a septal defect in order to alter the flow of oxygenated blood.

It was developed by Alfred Blalock and C. Rollins Hanlon.

It was described in 1950.[1]


  1. ^ Catherine A. Neill; Edward B. Clark (28 February 1995). The developing heart: a 'history' of pediatric cardiology. Springer. pp. 61–. ISBN 978-0-7923-3375-3. Retrieved 21 June 2011.