Abstract
Introduction Total resection of cystic craniopharyngiomas is challenging, especially for some large cystic tumors, because it is often associated with high recurrence and morbidity rates. Minimally invasive cyst decompression and continuous drainage are appropriate to manage clinical symptoms. We reviewed our experience of the past 11 years to determine the long-term effects of neuroendoscopic surgery (NES) combined with Ommaya reservoir (OR) for the treatment of cystic craniopharyngiomas. Methods We retrospectively analyzed the data of 15 adult patients with cystic craniopharyngiomas at a single institution with the primary goal to evaluate the treatment mode with initial adequate decompression of the cyst under visualization and continuous drainage. The study endpoints were functional outcome, cyst volume changes, and tumor progression. Results The median follow up was 77 (20–136) months. Clinical symptoms, e.g. increased intracranial pressure and visual impairment, could be rapidly improved after NES. The postoperative reduction in cyst volume (p < 0.001) and improvement in Karnofsky performance status (p < 0.001) were significant, and long-term tumor control was achieved in 10 patients (67%). Aspiration from the OR after progression of the tumor’s cystic portion remains a major option, with only few patients requiring repeat NES procedures. No patient developed acute or severe clinical symptoms during follow up. Conclusions NES could decompress the craniopharyngioma cyst under visualization and enable faster clinical-symptom improvement. The minimally invasive NES combined with OR allowed long-term symptom control in most patients without surgery-related injury. This palliative treatment strategy could be an alternative modality for cystic craniopharyngioma treatment.
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