Comparison of the use of ventricular access devices and ventriculosubgaleal shunts in posthaemorrhagic hydrocephalus: systematic review and meta-analysis.

study found borderline significance in the number of patients with a VSGS requiring a VPS (69.3 % for VADs vs. 86.1 % for VSGSs, p = 0.05) [ 29 ], meta-analysis of the studies found no significant difference (Fig. 1 d, log OR −0.06, 95 % CI −0.93 to 0.82).

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