Postoperative deficits and functional recovery following removal of tumors involving the dominant hemisphere supplementary motor area.

Abstract:

:The supplementary motor area (SMA) is a region located within each cerebral hemisphere at the posterior mesial border of the frontal lobe adjacent to the falx. The functional significance of this area has been somewhat unclear, and information regarding its influence on motor output has largely been based on evoked responses to direct stimulation in primates and humans. In this series of patients with primary and metastatic tumors involving the dominant hemisphere SMA, a distinct pattern of postoperative deficits and recovery has emerged which emphasizes the role of this critical area in the initiation of motor activity, including speech. Based upon this analysis, ablation of this region after first identifying the primary motor cortex may be accomplished without risk of permanent loss of motor activity or speech function, despite the initial severe deficits.

journal_name

J Neurosurg

journal_title

Journal of neurosurgery

authors

Rostomily RC,Berger MS,Ojemann GA,Lettich E

doi

10.3171/jns.1991.75.1.0062

subject

Has Abstract

pub_date

1991-07-01 00:00:00

pages

62-8

issue

1

eissn

0022-3085

issn

1933-0693

journal_volume

75

pub_type

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