Theta burst stimulation reduces disability during the activities of daily living in spatial neglect

Cazzoli, Dario; Müri, René Martin; Schumacher, Rahel; von Arx, Sebastian; Chaves, Silvia; Gutbrod, Klemens; Bohlhalter, Stephan; Bauer, Daniel; Vanbellingen, Tim; Bertschi, Manuel; Kipfer, Stefan; Rosenthal, Clive R; Kennard, Christopher; Bassetti, Claudio L; Nyffeler, Thomas (2012). Theta burst stimulation reduces disability during the activities of daily living in spatial neglect. Brain, 135(Pt 11), pp. 3426-3439. Oxford: Oxford University Press 10.1093/brain/aws182

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Left-sided spatial neglect is a common neurological syndrome following right-hemispheric stroke. The presence of spatial neglect is a powerful predictor of poor rehabilitation outcome. In one influential account of spatial neglect, interhemispheric inhibition is impaired and leads to a pathological hyperactivity in the contralesional hemisphere, resulting in a biased attentional allocation towards the right hemifield. Inhibitory transcranial magnetic stimulation can reduce the hyperactivity of the contralesional, intact hemisphere and thereby improve spatial neglect symptoms. However, it is not known whether this improvement is also relevant to the activities of daily living during spontaneous behaviour. The primary aim of the present study was to investigate whether the repeated application of continuous theta burst stimulation trains could ameliorate spatial neglect on a quantitative measure of the activities of daily living during spontaneous behaviour. We applied the Catherine Bergego Scale, a standardized observation questionnaire that can validly and reliably detect the presence and severity of spatial neglect during the activities of daily living. Eight trains of continuous theta burst stimulation were applied over two consecutive days on the contralesional, left posterior parietal cortex in patients suffering from subacute left spatial neglect, in a randomized, double-blind, sham-controlled design, which also included a control group of neglect patients without stimulation. The results showed a 37% improvement in the spontaneous everyday behaviour of the neglect patients after the repeated application of continuous theta burst stimulation. Remarkably, the improvement persisted for at least 3 weeks after stimulation. The amelioration of spatial neglect symptoms in the activities of daily living was also generally accompanied by significantly better performance in the neuropsychological tests. No significant amelioration in symptoms was observed after sham stimulation or in the control group without stimulation. These results provide Class I evidence that continuous theta burst stimulation is a viable add-on therapy in neglect rehabilitation that facilitates recovery of normal everyday behaviour.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Gerontechnology and Rehabilitation

UniBE Contributor:

Cazzoli, Dario; Müri, René Martin; Gutbrod, Klemens; Vanbellingen, Tim; Bertschi, Manuel; Kipfer, Stefan; Bassetti, Claudio and Nyffeler, Thomas

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0006-8950

Publisher:

Oxford University Press

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:26

Last Modified:

28 Oct 2019 20:55

Publisher DOI:

10.1093/brain/aws182

PubMed ID:

22831781

Web of Science ID:

000311644800027

BORIS DOI:

10.7892/boris.9435

URI:

https://boris.unibe.ch/id/eprint/9435 (FactScience: 215172)

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