Table A1.

Post-operative complications compared by group.

Reference	Resection	Biopsy
Dziurzynski, 2012	NR	NR
Chaichana, 2014	Motor deficit—3 (10%) Language deficit—3 (10%) Vision deficit—1 (3%)	Motor deficit—3 (16%) Language deficit—1 (5%) Vision deficit—0 (0%)
Dayani, 2018	N—4/14 Four cases with immediate post-op deficits, one with persistent post-op deficits 1—Rt-sided hemiplegia, rt-sided neglect, slurred speech; slight improvement but persistent deficit 2—Blurred vision, seizure; improved to baseline levels 3—Lt-sided neglect, lt-sided weakness, apraxia; lost to FU 4—Expressive aphasia, perceptual motor difficulties, mild rt visual field cut; improved to baseline levels	NR
OpokuDarko, 2018	N—2/10 1—A significant thromboembolic complication resulting in multifocal infarcts in the peritumoral area and distal left ACA territory. Resulted in right hemiparesis, expressive dysphasia, and abulia 2—A postoperative epidural hemorrhage requiring evacuation and admission to the intensive care unit.	N—1/20 1—Postprocedural hemorrhage leading to obstructive hydrocephalus that required permanent placement of a ventriculoperitoneal shunt.
Boaro, 2019	N—10/26 with new post-operative deficits Motor deficit—5 Language deficit—3 Cognitive deficit—5 Other: Seizures—3 Post-op hydrocephalus—5 Deep Vein Thrombosis/Pulmonary Embolism—4	NR
Hall, 2019	7/36 with postoperative complications	5/36 with postoperative complications
Franco, 2020	N—8/25 Hemorrhage—3 Ischemia—1 Cranial nerve deficit—1 Meningitis—2 Hydrocephalus—1 Aphasia—1 Pneumonia—0	N—5/30 Hemorrhage—0 Ischemia—0 Cranial nerve deficit—0 Meningitis—0 Hydrocephalus—2 Aphasia—2 Pneumonia—1

NR: Not reported.