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 REVIEW ARTICLE
Year : 2022  |  Volume : 70  |  Issue : 2  |  Page : 664--669

Preoperative Third Ventricle Floor Bowing is Associated with Increased Surgical Success Rate in Patients Undergoing Endoscopic Third Ventriculostomy – A Systematic Review and Meta-analysis


1 Faculty of Medicine, Universitas Pelita Harapan, Tangerang, Indonesia
2 Faculty of Medicine, Universitas YARSI, Jakarta, Indonesia
3 Department of Neurosurgery, Medical Faculty of Pelita Harapan University, Lippo Village Tangerang, Neuroscience Centre Siloam Hospital, Lippo Village Tangerang, Indonesia

Correspondence Address:
Dr. Julius July
Department of Neurosurgery, Medical Faculty of Pelita Harapan University, Lippo Village Tangerang, Neuroscience Centre Siloam Hospital, Lippo Village Tangerang
Indonesia
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0028-3886.344680

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Background: Endoscopic third ventriculostomy (ETV) is a procedure that involves devising an opening in the third ventricle floor, allowing cerebrospinal fluid to flow into the prepontine cistern and the subarachnoid space. Third ventricular floor bowing (TVFB) serves as an indicator of intraventricular obstruction in hydrocephalus and existence of pressure gradient across third ventricular floor, which is the prerequisite of a successful ETV. Objective: In this systematic review and meta-analysis, we aimed to synthesize the latest evidence on the TVFB as a marker for surgical success in patients undergoing ETV. Material and Methods: We performed a comprehensive search on topics that assesses the association of TVFB with the surgical success in patients undergoing ETV from several electronic databases. Results: There was a total of 568 subjects from six studies. TVFB was associated with 85% (81-88%) ETV success. TVFB was associated with OR 4.13 [2.59, 6.60], P < 0.001; I2: 6% for ETV success. Subgroup analysis on pediatric patients showed 86% (82-91%) success rate. In terms of value for ETV success compared to ETV Success Score (ETVSS), a high ETVSS does not significantly differ (P = 0.31) from TVFB and TVFB was associated with OR 3.14 [1.72, 5.73], P < 0.001; I2: 69% compared to intermediate/moderate ETVSS. Funnel plot analysis showed an asymmetrical funnel plot due to the presence of an outlier. Upon sensitivity analysis by removing the outlier, the OR was 3.62 [2.22, 5.89], P < 0.001; I2: 0% for successful surgery in TVFB. Conclusions: TVFB was associated with an increased rate of successful surgery in adults and children undergoing ETV.






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