Rate of recurrence following stereotactic aspiration of colloid cysts of the third ventricle

Rajshekhar, Vedantam (2012) Rate of recurrence following stereotactic aspiration of colloid cysts of the third ventricle Stereotactic and Functional Neurosurgery, 90 (1). pp. 37-44. ISSN 1011-6125

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Related URL: http://dx.doi.org/10.1159/000334670

Abstract

BACKGROUND: The rate of recurrence following stereotactic aspiration of colloid cysts is not defined in the literature. AIMS: To study the long-term imaging and clinical outcome in patients who had stereotactic aspiration of colloid cysts of the third ventricle. METHODS: Between 1987 and 1994, computerized tomography-guided stereotactic aspiration was attempted in 26 consecutive patients with colloid cysts of the third ventricle. RESULTS: There was no mortality or permanent morbidity. A complete aspiration of the cyst was possible in 17 patients, a partial aspiration of the cyst was achieved in 6 and the aspiration failed in 3 patients. On long-term follow-up, symptomatic recurrence was noted in 5/6 patients after partial aspiration and 4/17 patients after complete aspiration (mean follow-up 84.8 months). Kaplan-Meier analysis revealed that after complete aspiration of the cyst, median time to recurrence on imaging is 42 months (95% CI 23.0-60.9 months) but median time to symptomatic recurrence is much later at 184 months (95% CI 88.2-279.7 months). CONCLUSIONS: Stereotactic aspiration of colloid cysts remains a valid surgical option as complete aspiration leads to a good long-term outcome in several patients. Partial aspiration of the cyst should be followed by excision of the cyst, due to the high rate of symptomatic recurrence. However, periodic follow-up imaging is mandatory even after complete aspiration as delayed recurrences are possible.

Item Type:Article
Source:Copyright of this article belongs to S. Karger AG.
Keywords:Brain tumor; Computerized Tomography; Stereotactic Aspiration; Outcome; Cyst Recurrence; Stereotactic Techniques; Surgery
ID Code:95566
Deposited On:02 Aug 2013 04:26
Last Modified:02 Aug 2013 04:26

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