Neurocognitive Complications after Ventricular Neuroendoscopy: A Systematic Review

Table 2

Rates of cognitive complications by type of ventricular endoscopic surgery.

Procedure ( of studies)	Transient (%)	Permanent (%)	Transient ( all)	Permanent ( all)
ETV (5)	0	2.21	0/226	5/226
CC resection (20)	7.96	2.65	45/565	16/603
(6)	0.70	0.23	4/570	1/439
Biopsy alone (1)	0	0.42	0/714	3/714
Cyst fenestration (2)	2.27	2.27	1/44	1/44
Foraminoplasty (2)	0	0	0/33	0/33
Hypothalamic hamartoma disconnection (1)	10	0	2/20	0/20
Combined procedures (1)	2.30	0	3/130	0/130
Various procedures (2)	0	0.43	0/464	2/464

ETV: endoscopic third ventriculostomy; CC: colloid cyst; : number.