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Title: Intracystic bleomycin for cystic craniopharyngiomas in children.
Author: Fang Y, Cai BW, Zhang H, Liu W, Wu B, Xu JG, You C.
Journal: Cochrane Database Syst Rev; 2012 Apr 18; (4):CD008890. PubMed ID: 22513968.
Abstract:
BACKGROUND: Craniopharyngiomas are the commonest benign histological tumours to involve the hypothalamo-pituitary region in childhood. Cystic craniopharyngiomas occur in more than 90% of tumours. The optimal treatment of cystic craniopharyngioma remains controversial. Radical resection is the treatment of choice in patients with favourable tumour localization. When the tumour localization is unfavourable, a gross-total or partial resection followed by radiotherapy is the main treatment option in adults. However, it presents risk of morbidity especially for children. Intracystic bleomycin has been utilized to potentially delay the use of radiotherapy or radical resection to decrease morbidity. OBJECTIVES: To determine the benefits and harms of intracystic bleomycin versus other treatments for cystic craniopharyngiomas in children. SEARCH METHODS: We searched the electronic databases of CENTRAL (The Cochrane Library 2010, Issue 4), MEDLINE/PubMed (from 1966 to Oct 2010), and EMBASE/Ovid (from 1980 to Oct 2010) with pre-specified terms. In addition, we searched reference lists of relevant articles and reviews, conference proceedings and ongoing trial databases. SELECTION CRITERIA: Randomised controlled trials (RCTs) quasi-randomised trials or controlled clinical trials (CCTs) comparing intracystic bleomycin and other treatments for cystic craniopharyngiomas in children (from birth to 18 years). DATA COLLECTION AND ANALYSIS: Two review authors independently performed the data extraction and the 'Risk of bias' assessment. We used risk ratio (RR) for binary data and mean difference (MD) for continuous data. We planned that if one of the treatment groups experienced no events and there was only one study available for the outcome, we would use the Fischer's exact test. MAIN RESULTS: We could not identify any studies in which the only difference between the treatment groups was the use of intracystic bleomycin. We did identify a RCT comparing intracystic bleomycin with intracystic (32)P (n = 7 children). The trial had a high risk of bias. Survival could not be evaluated. There was no evidence of a significant difference in cyst reduction (MD = -0.15, 95% confidence interval (CI) -0.69 to 0.39, P= 0.59), neurological status (Fisher's exact P = 0.429), 3rd nerve paralysis (Fischer's exact P = 1.00), fever (RR = 2.92, 95% CI 0.73 to 11.70, P = 0.13) and total adverse effects (RR = 1.75, 95% CI 0.68 to 4.53, P = 0.25 ) between the treatment groups. There was a significant difference in favour of the (32)P group for the occurrence of headache and vomiting (Fischer's exact P = 0.029 for both outcomes). AUTHORS' CONCLUSIONS: Since no RCTs, quasi-randomised trials or CCTs in which only the use of intracystic bleomycin differed between the treatment groups in the treatment of cystic craniopharyngiomas in children, no definitive conclusions could be made about the effects of intracystic bleomycin in these patients. Only one low-power RCT comparing intracystic bleomycin with intracystic (32)P treatment was available, but no definitive conclusions can be made about the effectiveness of these agents in children with cystic craniopharyngiomas. Based on the currently available evidence, we are not able to give recommendations for the use of intracystic bleomycin in the treatment of cystic craniopharyngiomas in children. High quality RCTs are needed.

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