Tuesday, May 4, 2010

Radiotherapy in paediatric Cushing’s disease: efficacy and long term follow up of pituitary function

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Radiotherapy in paediatric Cushing’s disease: efficacy and long term follow up of pituitary function

Shrikrishna V. Acharya1 Contact Information, Raju A. Gopal1, Joe Goerge1, Padma S. Menon1, Tushar R. Bandgar1 and Nalini S. Shah1

Department of Endocrinology, Seth G S Medical College and KEM Hospital, Mumbai, 12, Maharashtra, India

Published online: 22 April 2010


Pituitary radiotherapy (RT) is an effective second-line treatment for paediatric Cushing’s disease (CD). We report long-term efficacy and anterior pituitary function in a cohort of paediatric CD patients treated with RT. Between 1988 and 2008, from our cohort of 48 paediatric CD patients, eight paediatric CD patients (5 males and 3 females) underwent second-line pituitary RT (45 Gy in 25 fractions), following unsuccessful transsphenoidal surgery. Out of eight whose long term follow up is available, four patients were cured by RT. Minimum follow up of 2 years is available for all patients. Four patients achieved cure after RT. Two patients were not cured even after follow up of 60 and 132 months, respectively. Out of four uncured patients, two of them had suppressible low dose dexamethasone cortisol with altered circadian rhythm suggesting possibility of response in near future with follow up of just 26 months. Five patients were hypogonadal and one patient was hypothyroid. All patients were below their target height at the time of last follow up. None of the patients had posterior pituitary dysfunction. This series of patients illustrates the efficacy and long-term follow up of pituitary function in children with CD treated with RT. This study also emphasizes the need of growth hormone statues assessment and timely intervention.

Keywords  Radiotherapy - Cushing’s disease - Panhypopituitarism

Contact Information
Shrikrishna V. Acharya
Email: drshri25@rediffmail.com

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From http://www.springerlink.com/content/1v70l415prt332h8/

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