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Ann Pediatr Endocrinol Metab > Volume 3(2); 1998 > Article
Change in Pre-, Postoperative Endocrine Function and Growth Pattern in Patients with Craniopharyngioma.
Jae Bok Kim, Han Wook Yoo
Craniopharyngioma is one of the most important intracranial tumors in pediatric age which causes multiple pituitary hormone deficiencies. We have studied clinical characteristics in patients with craniopharyngioma, focusing on changes of endocrine function, change of growth pattern, and change of body mass index before and after surgery. In addition, we wanted to know the effect of growth hormone therapy on growth velocity and body mass index, and to identify contributing factors for spontaneous growth in spite of growth hormone deficiency. METHODS:A total number of 17 patients who were diagnosed as having craniopharyngioma at the Department of Pediatrics, Asan Medical Center during the period of January, 1991 to December, 1997 were included in this study. Retrospectively, we reviwed medical records as to their endocrine function tests and auxoloogical data before, after surgery.
1)The number of patients of male and female were 9 and 8 respectively. Mean age was 7.3+/-4.3 years. 2)Preoperatively, 3 patients were thyroid hormone deficient, 3 patients were corticosteroid deficient, and 3 patients suffered from diabetes inspidus. 3)Postoperatively, GH and TSH deficiency were found in 100%, ACTH in 88.2%, ADH in 82.3%, and LH/FSH in 60%, 53% respectively. 4) Mean growth velocity in 14 GH deficient patients without growth hormone treatment for 2 years were 3.5+/-2.4cm/year during the 1st year and 3.1+/-1.7cm/year during the 2nd year. Although height standard deviation score(Ht. SDS) was decreasing trend as -0.24+/-2.19 at diagnosis, -0.94+/-1.73 at 1 year later, and -0.76+/-1.76 at 2 years later, it was not statistically significant. To our suprise, 4 out of 14 patients achieved greater growth velocity than nomal in spite of growth hormone deficiency during the 1st year after operation. 5) Although the mean body mass index of 14 GH deficient patients without GH treatment was increasing trend as 17.9+/-3.5 at diagnosis, 19.0+/-4.5 at 1 year later, and 19.9+/-4.8 at 2 year later, it was not statistically significant. 6) The mean Ht. SDS increased significantly in 7 patients treated with growth hormone(P<0.05) for 2 years, but change of body mass index was not significant. 7) Comparision of postoperative serum prolactin levels and changes of body mass index between spontaneous growth and stunted growth group did not reveal significant difference.
Since most patients with craniopharyngioma become multiple pituitary hormone deficient after operation, it is important to predict and detect pituitary dysfunction to manage it effectively. Although patients with postoperative GH deficiency responded well to GH treatment, further study is needed to clarify what are the main contributing or prognostic factors for spontaneous growth without growth hormone treatment.
Keywords: Craniopharyngioma;Multiple Hormone Deficiency;Growth;Obesity


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