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Pituitary Function Assessment in Short Stature by a Combined Hormonal-Stimulation Test

Michael Pugliese, MD; Fima Lifshitz, MD; Pavel Fort, MD; Cecilia Cervantes, MD; Bridget Recker, RN, MEd; Lori Ginsberg, RN, MA
Am J Dis Child. 1987;141(5):556-561. doi:10.1001/archpedi.1987.04460050098040.
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• We utilized combined, hormonal-stimulation test (CHST) using sequentially-administered insulin, thyrotropin-releasing hormone, gonadotropin-releasing hormone, and levodopa to assess 51 children with short stature and/or pathologic growth. Growth hormone, thyrotropin, gonadotropins, cortisol, and prolactin levels were sampled over two hours. All patients with appropriate predicted adult heights, delayed bone ages, and normal growth velocities of 4.0 cm/y or greater demonstrated normal pituitary responses. Two of 12 patients with predicted heights 2.5 SDs lower than target height and normal growth velocity demonstrated isolated growth hormone deficiency. Nine of 11 patients had a pathologic growth hormone deficiency or panhypopituitarism. Evaluation of pituitary function by combined sequential hormonal stimulation is fruitful in children with pathologic growth patterns but not in children with normal growth velocities and normal predicted adult height.

(AJDC 1987;141:556-561)

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