• Alexander N Konovalov, David I Pitskhelauri, Michael Shkarubo, Svetlana B Buklina, Anna A Poddubskaya, and Mariya Kolycheva.
• Burdenko Neurosurgery Institute, Moscow, Russia.
• World Neurosurg. 2017 Sep 1; 105: 678-688.

BackgroundThis study analyzes the results of surgical treatment in 377 patients with colloid cysts (CCs) of the third ventricle who were treated at the Burdenko Neurosurgery Institute from 1981 to 2015. Operations were performed by a single surgeon (the first author of the article).MethodsThe transcallosal approach was used to remove CCs in 97% of cases. Total cyst removal was performed in 96% of cases (in 4% of cases, a small cyst capsule fragment was left on the veins and fornix); in 3 cases, the cyst recurred, which required its repeated removal.ResultsHydrocephalus symptoms regressed in 98% of patients. The most frequent complications in the early postoperative period were memory impairments of varying severity, with a tendency to regress by the time of discharge. Two patients had an intraventricular hematoma, which required operative exploration in 1 patient. There were 4 cases of meningitis (including 1 shunt-associated meningitis) and 5 cases of transient pyramidal insufficiency.ConclusionsWe made a preliminary assessment of the reasonability of the infratentorial supracerebellar approach for removal of CCs in 10 cases.Copyright © 2017 Elsevier Inc. All rights reserved.

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