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Eur J Endocrinol. 2012 Jun;166(6):1061-8. doi: 10.1530/EJE-12-0077. Epub 2012 Mar 28.

Tumour recurrence and enlargement in patients with craniopharyngioma with and without GH replacement therapy during more than 10 years of follow-up.

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1
Department of Endocrinology, Sahlgrenska University Hospital, Gröna Stråket 8, Gothenburg, Sweden. daniel.olsson@medic.gu.se

Erratum in

  • Eur J Endocrinol. 2012 Jul;167(1):135.

Abstract

OBJECTIVE:

Most patients who have been treated for craniopharyngioma (CP) are GH deficient (GHD). GH replacement therapy (GHRT) may stimulate tumour regrowth; and one of the concerns with long-term GHRT is the risk of tumour progression. Therefore, the objective was to study tumour progression in CP patients on long-term GHRT.

DESIGN:

Case-control study.

PATIENTS AND METHODS:

The criteria for inclusion of cases were: i) GHD caused by CP; ii) GHRT >3 years; and iii) regular imaging. This resulted in 56 patients (mean age at diagnosis 25±16 years) with a mean duration of GHRT of 13.6±5.0 years. As controls, 70 CP patients who had not received GHRT were sampled with regard to follow-up, gender, age at diagnosis and initial radiation therapy (RT).

RESULTS:

The 10-year tumour progression-free survival rate (PFSR) for the entire population was 72%. There was an association (hazard ratio, P value) between PFSR and initial RT (0.13, 0.001) and residual tumour (3.2, 0.001). The 10-year PFSR was 88% for the GHRT group and 57% for the control group. Substitution with GHRT resulted in the following associations to PFSR: GHRT (0.57, 0.17), initial RT (0.16, <0.001), residual tumour (2.6, <0.01) and gender (0.57, 0.10). Adjusted for these factors, the 10-year PFSR was 85% for the GHRT group and 65% for the control group.

CONCLUSIONS:

In patients with CP, the most important prognostic factors for the PFSR were initial RT and residual tumour after initial treatment. Long-term GHRT did not affect the PFSR in patients with CP.

PMID:
22457235
DOI:
10.1530/EJE-12-0077
[Indexed for MEDLINE]
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