Language Localization Using Repetitive Transcranial Magnetic Stimulation (rTMS) in Patients With Epilepsy

Epilepsy, Temporal Lobe Clinical Trial

Official title:

Language Localization Using Repetitive Transcranial Magnetic Stimulation (rTMS) in Patients With Epilepsy

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00001672
• Other study ID #: 970175
• Secondary ID: 97-N-0175
• Status: Completed
• Phase: N/A
• First received: November 3, 1999
• Last updated: March 3, 2008
• Start date: September 1997
• Est. completion date: March 2000

Study information

• Verified date: August 1999
• Source: National Institutes of Health Clinical Center (CC)
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Federal Government
• Study type: Observational

Clinical Trial Summary

Repetitive transcranial magnetic stimulation (rTMS) may be able to provide a moderately detailed localization of language functions in the brain. We propose to test the ability of rTMS to locate the substrate of visual naming to a limited area of the temporal lobe in patients with temporal lobe epilepsy before and after surgical resections. The study is expected to yield information on the organization of language in the temporal lobes and how unilateral temporal lobe lesions and lobectomy cause relocation of language mechanisms in the lesioned and in the other hemisphere. It will also be a preliminary step in the development of a clinically useful procedure for locating critical language areas in potential surgical candidates.

Description:

Repetitive transcranial magnetic stimulation (rTMS) may be able to provide a moderately detailed localization of language functions in the brain. We propose to test the ability of rTMS to locate the substrate of visual naming to a limited area of the temporal lobe in patients with temporal lobe epilepsy before and after surgical resections. The study is expected to yield information on the organization of language in the temporal lobes and how unilateral temporal lobe lesions and lobectomy cause relocation of language mechanisms in the lesioned and in the other hemisphere. It will also be a preliminary step in the development of a clinically useful procedure for locating critical language areas in potential surgical candidates.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 40
• Est. completion date: March 2000
• Accepts healthy volunteers: No
• Gender: Both
• Age group: N/A and older

Eligibility

Patients will be drawn from among those referred to the NINDS Epilepsy Research Branch.

No patients with evidence for a progressive neurological disorder.

No subjects with metal hardware in the cranial cavity, cardiac pacemakers, indwelling medication pumps, cochlear implants, intracardiac lines, significant intracranial masses or evidence of increased intracranial pressure.

Women must not be pregnant.

Study Design

N/A

Related Conditions & MeSH terms

• Epilepsy
• Epilepsy, Temporal Lobe

Locations

Country	Name	City	State
United States	National Institute of Neurological Disorders and Stroke (NINDS)	Bethesda	Maryland

Sponsors (1)

Lead Sponsor	Collaborator
National Institute of Neurological Disorders and Stroke (NINDS)

Country where clinical trial is conducted

United States, 

References & Publications (3)

Claus D, Weis M, Treig T, Lang C, Eichhorn KF, Sembach O. Influence of repetitive magnetic stimuli on verbal comprehension. J Neurol. 1993;240(3):149-50. — View Citation

Desmond JE, Sum JM, Wagner AD, Demb JB, Shear PK, Glover GH, Gabrieli JD, Morrell MJ. Functional MRI measurement of language lateralization in Wada-tested patients. Brain. 1995 Dec;118 ( Pt 6):1411-9. — View Citation

Epstein CM, Lah JJ, Meador K, Weissman JD, Gaitan LE, Dihenia B. Optimum stimulus parameters for lateralized suppression of speech with magnetic brain stimulation. Neurology. 1996 Dec;47(6):1590-3. — View Citation