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Waterston anastomosis
  1. D. Pickering,
  2. G. A. Trusler,
  3. I. Lipton,
  4. J. D. Keith
  1. Departments of Cardiology and Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada

    Comparison of results of operation before and after age 6 months


    The results of 40 Waterston aortico-to-pulmonary anastomoses are reviewed from the experience at The Hospital for Sick Children, Toronto, between June 1966 and October 1969. Over the age of 6 months there was one death associated with the procedure in 12 cases. Under the age of 6 months the mortality associated with the operation in cases of tetralogy of Fallot was 50%. This represents the severer degree of defect as well as the increased technical difficulties in the younger age group.

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