Neonatal Hyperparathyroidism and Pamidronate Therapy in an Extremely Premature Infant

Author:

Fox Lisa1,Sadowsky Joel1,Pringle Kevin P.123,Kidd Alexa4,Murdoch Jean5,Cole David E.C.6,Wiltshire Esko147

Affiliation:

1. Departments of Paediatrics and Child Health

2. Surgery

3. Obstetrics and Gynaecology

4. Central Regional Genetics Service, Wellington Hospital, Capital and Coast District Health Board, Wellington, New Zealand; Departments of

5. Radiology

6. Departments of Laboratory Medicine and Pathobiology, Medicine, and Pediatrics, University of Toronto, Toronto, Ontario, Canada

7. Paediatrics and Child Health, Wellington School of Medicine and Health Sciences, University of Otago, Wellington, New Zealand

Abstract

We describe the use of pamidronate to control marked hypercalcemia in an extremely premature infant with neonatal hyperparathyroidism that resulted from an inactivating mutation (R220W) of the calcium-sensing receptor. Despite improvement in bone mineralization and subsequent parathyroidectomy with normalization of the serum calcium level, the combination of chronic lung disease, osteomalacia, and poor thoracic cage growth ultimately proved fatal. Pamidronate therapy seems to be safe in the short-term and effective in helping control hypercalcemia even in the very premature infant, allowing for planned surgical intervention when it becomes feasible.

Publisher

American Academy of Pediatrics (AAP)

Subject

Pediatrics, Perinatology and Child Health

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