Document Detail

Visual field deficits following anterior temporal lobectomy: long-term follow-up and prognostic implications.
MedLine Citation:
PMID:  20074232     Owner:  NLM     Status:  MEDLINE    
PURPOSE: The aim of this study was to assess the incidence of mild (<or=90 degrees) versus severe (>90 degrees from vertical) visual field defects (VFDs) in patients after anterior temporal lobectomy (ATL), and their postoperative improvement over time. METHODS: The angles of postoperative VFDs of 75 patients who underwent ATL were recorded at various time points (1, 2, 6, 12, 18, 24, and 36+ months). RESULTS: Of all 23 patients who came in for their <1 month postoperative appointment, 65% of patients had surgically induced VFDs <90 degrees , whereas 35% had VFDs >90 degrees postoperatively. Patients in the latter group were reported for suspension of their driver's license. However, 38% experienced improvement of their VFD to <90 degrees such that their driver's license could be reinstated. Of patients with any VFD, 18-30% improved on average by a magnitude of 38 degrees within the first year postoperatively. DISCUSSION: Although 35% of the VFDs that occur following temporal lobe surgery are severe, approximately 38% of these patients (especially those with starting postoperative VFDs closer to the 90 degrees angle) experience some improvement shortly after surgery. This may increase their chances of having their driver's license reinstated.
Debbie Yam; David Nicolle; David A Steven; Donald Lee; Tiiu Hess; Jorge G Burneo
Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2010-01-13
Journal Detail:
Title:  Epilepsia     Volume:  51     ISSN:  1528-1167     ISO Abbreviation:  Epilepsia     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-07-12     Completed Date:  2010-08-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2983306R     Medline TA:  Epilepsia     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1018-23     Citation Subset:  IM    
Department of Clinical Neurological Sciences, The University of Western Ontario, London Health Sciences Centre, London, Ontario, Canada.
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MeSH Terms
Anterior Temporal Lobectomy / adverse effects*
Follow-Up Studies
Middle Aged
Postoperative Complications / diagnosis*,  etiology*,  physiopathology
Temporal Lobe / physiopathology,  surgery
Time Factors
Treatment Outcome
Vision Disorders / diagnosis*,  etiology*,  physiopathology
Visual Fields / physiology*
Young Adult

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