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Unilateral Ablative Lesions of the Subthalamic Nucleus in Moderate-to-Advanced Parkinson’s Disease Research Article

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dc.creator Haşmet A. Hanağası,
dc.creator Orhan Barlas
dc.date 2011
dc.date.accessioned 2013-05-30T14:05:58Z
dc.date.available 2013-05-30T14:05:58Z
dc.date.issued 2013-05-30
dc.identifier http://www.turknoropsikiyatri.org/default.aspx?pfn=dergiOkur&iid=51&modulePage=article&dt=tft&aid=316
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=13000667&date=2011&volume=48&issue=2&spage=114
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/6031
dc.description Objective: Deep brain stimulation (DBS) of the subthalamic nucleus (STN) has been reported to be effective in alleviating all parkinsonian motor symptoms and motor complications in moderate-to-advanced Parkinson’s disease (PD). We have studied the effects of unilateral STN lesions on moderate-to-advanced PD. Methods: Eleven patients (eight male, three female) with moderate-to-advanced PD were studied. Before surgery, all patients suffered from one or more motor complications (wearing-off and on-off phenomena, dyskinesias). All patients had Hoehn and Yahr stage 3 or 4 in off-drug condition and were evaluated with the Unified Parkinson's Disease Rating Scale (UPDRS). The follow-up time ranged between 12 and 20 months (mean: 14±2.94 months). STN was identified through CT and MRI scans. STN lesions were performed unilaterally using thermocoagulation. Results: Subthalamotomy induced a marked motor improvement contralaterally, ipsilaterally and axially. Mean “on” time total UPDRS and motor scores decreased from 61.7±19.2 to 31.6±15.7 (p=0.001) and from 26.1±11.1 to 15±11.1 (p=0.02), respectively. Total ‘on’ time period increased by 50% in eight patients but did not change in the remaining three. Nine patients had disabling dyskinesia and six of these patients improved significantly (mean 40%, UPDRS part IV). Compared to pre-surgical doses, the levodopa-equivalent dose was reduced in eight patients, increased in one and left unchanged in the remaining two patients during the post-operative phase. Notably, only one out of eleven patients developed hemiballismus. Hemiballistic movements emerged immediately after the ablation and were ameliorated under treatment within two weeks after surgery. Conclusion: We conclude that subthalamotomy is a safe and effective treatment for moderate-to-advanced PD. In cases in which DBS is not feasible, subthalamotomy may be considered as an alternative procedure. (Archives of Neuropsychiatry 2011; 48: 114-8)
dc.publisher Galenos Yayicilik
dc.source Nöropsikiyatri Arşivi
dc.subject Parkinson disease
dc.subject motor complications
dc.subject subthalamotomy
dc.subject deep brain stimulation
dc.title Unilateral Ablative Lesions of the Subthalamic Nucleus in Moderate-to-Advanced Parkinson’s Disease Research Article


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