World Neurosurg
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Intracranial hemangiopericytoma is a rare tumor with high recurrence rate. We analyzed adverse factors for recurrence and survival of patients with hemangiopericytoma. ⋯ This study revealed risk factors for PFS and overall survival to predict outcomes and determine treatments. GTR was attempted as frequently as possible, and PRT was recommended for patients with non-GTR or recurrence to improve tumor control.
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Randomized Controlled Trial
Accuracy of Varioguide frameless stereotactic system against Frame based stereotaxy: Prospective randomized single-centre study.
Frameless stereotactic brain biopsy systems are widely used today. VarioGuide (VG) is a relatively novel frameless system. Its accuracy was studied in a laboratory setting but has not yet been studied in the clinical setting. The purpose of this study was to determine its accuracy and diagnostic yield and to compare this with frame-based (FB) stereotaxy. ⋯ The VG system proved to be comparable in terms of the trajectory accuracy, rate of complications and diagnostic yield compared with the "gold standard" represented by the traditional FB stereotaxy for patients undergoing brain biopsy. VG is also better accepted by patients.
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Multicenter Study
Outcome of Endoscopic Transsphenoidal Surgery for Acromegaly.
Endoscopic transsphenoidal surgery has recently been introduced in pituitary surgery. We investigated outcomes and complications of endoscopic surgery in 2 referral centers in Korea. ⋯ Endoscopic transsphenoidal surgery for acromegaly presented high remission rates and a low incidence of endocrine deficits and complications. Regardless of surgical techniques, invasive pituitary tumors were associated with poor outcome.