Outcomes after stereotactically guided pallidotomy for advanced Parkinson's disease

被引:49
作者
Kondziolka, D
Bonaroti, E
Baser, S
Brandt, F
Kim, YS
Lunsford, LD
机构
[1] Univ Pittsburgh, Med Ctr, Dept Neurol Surg, Pittsburgh, PA 15213 USA
[2] Univ Pittsburgh, Dept Neurol, Pittsburgh, PA 15213 USA
关键词
Parkinson's disease; pallidotomy; dyskinesia; tremor; stereotactic surgery; levodopa;
D O I
10.3171/jns.1999.90.2.0197
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Object. Parkinson's disease (PD) is a prevalent neurodegenerative disorder that becomes refractory to medication as the disease progresses. Although in the past 5 years increasing numbers of patients have undergone stereotactically guided posteroventral pallidotomy for advanced PD, the safety and efficacy of surgery remains to be doc umented. The goal in this study was to determine the potential operative morbidity and types of functional outcomes by using validated PD rating scales and a patient survey. Methods. In a prospective analysis of a consecutive surgical series the authors evaluated 58 patients with advanced PD who ranged in age from 40 to 79 years (mean 67 years) and who had undergone surgery between 1994 and 1997. They used a patient survey and the Unified Parkinson's Disease Rating Scale (UPDRS) to study patients during periods of medication administration ("on") and withdrawal ("off"; mean off score before surgery = 96). Temporary surgical morbidity was found in four patients (6.9%), three of whom developed transient dysarthria and one of whom exhibited transient confusion (1.7%). One patient had persistent dysarthria (1.7%). No patient developed a visual field deficit or sustained a brain hemorrhage. All patients were discharged from the hospital within 24 hours. Significant postsurgical improvements were noted in the UPDRS off-period total and motor scores, as well as in tremor, rigidity, bradykinesia, and contralateral dyskinesia (p < 0.005). Improvements persisted in dyskinesia and tremor for the 21 patients who were evaluated past 1 year. The authors found no improvement in any on-period symptoms except dyskinesia. Thirty-one (61%) of 51 patients surveyed reported functional gains and/or dramatic improvement in symptoms, 17 (33%) reported symptomatic improvement without functional gains, and three (6%) had minimal or no change in symptoms. No change in the mini mental state examination score was noted during follow up. There were no significant postoperative changes in the use of medication. Conclusions. In advanced PD associated with either a medically refractory state with significant off periods or levodopa-induced dyskinesias, magnetic resonance imaging-guided pallidotomy with macrostimulation was associated with minimal morbidity and yet significantly reduced dyskinesia and off-period disability. These improvements were of value to the patient and persisted beyond the 1st year.
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收藏
页码:197 / 202
页数:6
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