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Behavioural Neurology
Volume 2015, Article ID 971514, 7 pages
Research Article

Cognitive and Functional Impairment in Stroke Survivors with Basilar Artery Occlusive Disease

1Department of Neurology, University of São Paulo, 05403-000 São Paulo, SP, Brazil
2Stroke Clinic, Department of Neurology, University of São Paulo, 05403-000 São Paulo, SP, Brazil
3Department of Radiology, University of São Paulo, 05403-000 São Paulo, SP, Brazil

Received 24 February 2015; Revised 14 May 2015; Accepted 26 May 2015

Academic Editor: Olivier Piguet

Copyright © 2015 Kenia Repiso Campanholo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. Despite growing literature on posterior vascular disease, specific information about the cognitive and functional profiles of patients with basilar artery occlusion disease (BAOD) is scarce. The aims of this study were (1) to compare the cognitive statuses of BAOD survivors versus healthy controls and (2) to correlate the functional capacity outcomes with the cognitive profiles of BAOD patients. Methods. Comprehensive cognitive and functional assessments were carried out in 28 patients with BAOD and 27 age- and education level-matched healthy controls. Results. Compared to matched controls, patients presented impairments in selective, sustained, and set-shifting attention, processing speed, visuospatial skills, mental flexibility, and monitoring rules. There were significant deficits in verbal episodic memory (immediate and delayed recall) and visuospatial episodic memory (immediate and delayed recall and recognition). Functional capacity outcomes were significantly related to the cognitive test results. Seventy-five percent of patients had a Modified Rankin Scale score of 0 or 1. Conclusions. Our results indicate good functional outcomes in a selected group of BAOD survivors, despite the presence of subnormal performance on some cognitive tests, including tests of attention, executive function, and long-term memory.