%0 Review
%T Back to basal: contemporary cerebrovascular cohort study of the supratentorial-infraoccipital approach.
%A Srinivasan VM
%A Karahalios K
%A Reddy VP
%A Scherschinski L
%A DiDomenico JD
%A Rahmani R
%A Catapano JS
%A Labib MA
%A Rumalla K
%A Graffeo CS
%A Lawton MT
%J J Neurosurg
%V 138
%N 3
%D 03 2023 1
%M 35901708
%F 5.408
%R 10.3171/2022.5.JNS22506
%X The objective of this paper was to assess applications of the supratentorial-infraoccipital (STIO) approach for cerebrovascular neurosurgery.
The authors conducted a cohort study of all consecutive cases in which the STIO approach was used during the study period, December 1995 to January 2021, as well as a systematic review of the literature.
Twenty-five cerebrovascular cases were identified in which the STIO approach was used. Diagnoses included arteriovenous malformation (n = 15), cerebral cavernous malformation (n = 5), arteriovenous fistula (n = 4), and aneurysm (n = 1). The arteriovenous malformations consisted of Spetzler-Martin grade II (n = 3), grade III (n = 8), and grade IV (n = 4) lesions. Lesion locations included the occipital lobe (n = 15), followed by the tentorial dural (n = 4), temporal-occipital (n = 3), temporal (n = 1), thalamic (n = 1), and quadrigeminal cistern (n = 1) regions. Many patients (75%) experienced transient visual deficits attributable to retraction of the occipital lobe, all of which resolved. As of last follow-up (n = 12), modified Rankin Scale scores had improved for 6 patients and were unchanged for 6 patients compared with the preoperative baseline.
The STIO approach is a safe and effective skull base approach that provides a specialized access corridor for appropriately selected cerebrovascular lesions.