Publicaciones científicas

Chemotherapy-induced growth hormone deficiency in children with cancer

Román J., Villaizán C.J., García-Foncillas J., Azcona C., Salvador J., Sierrasesúmaga L.
Department of Pediatric Oncology, Universidad de Navarra, Pamplona, Spain.

Revista: Medical and Pediatric Oncology

Fecha: 01-ago-1995

Pediatría Endocrinología y Nutrición Oncología Médica

BACKGROUND
Chemotherapy (CT) may produce growth impairment, however, the pathogenesis is still unclear.

METHODS
A series of 25 patients mean age 13.3 years (6.3-19.8), previously treated for malignant solid tumours with only CT and surgery were studied. Growth hormone (GH) reserve was assessed by two different provocative stimuli (Clonidine and L-Dopa). Mean time between completion of treatment and GH evaluation was 18.5 months (2-74 months). At that time, all patients were in complete remission.

RESULTS
GH deficiency (GHD), defined by an impaired GH response to both provocative tests was observed in 11 out of 25 patients (44%). At diagnosis, mean standing height was +0.23 +/- 1.42 SDS in the GHD group (GHD-g) and +0.18 +/- 1.23 SDS in the non-GHD group (n-GHD-g). At the end of therapy, the mean standing height in the GHD-g was -0.31 +/- 1.22 SDS and -0.17 +/- 1.41 in the n-GHD-g, differing from the former group (P = 0.05).

For a mean follow-up of 30 months from the end of treatment, the mean standing height was -0.48 +/- 1.23 SDS in the GHD-g and -0.24 +/- 1.51 SDS for the n-GHD-g (P = 0.03). Growth rate at the end of treatment was +0.13 +/- 1.54 in the GHD-g and +0.21 +/- 1.75 in the n-GHD-g. For a mean follow-up of 30 months from the end of treatment, the growth rate was different between GHD-g and n-GHD-g (-0.31 +/- 2.72 vs. -0.21 +/- 1.93, P < 0.05).

CONCLUSIONS
1) Growth impairment in children treated because of malignant diseases has a multifactorial etiology, but CT-induced GH deficiency is one potential adverse factor. 2) An endocrine follow-up should be introduced in order to detect and treat hormonal deficiencies as early as possible.

CITA DEL ARTÍCULO  Med Pediatr Oncol. 1995 Aug;25(2):90-5

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