目的 比较多系统萎缩帕金森型(MSA-P)与帕金森病患者的震颤特征和左旋多巴的治疗效果,以及可能的影响因素。方法 2017年3月至9月,入组帕金森病患者70例(帕金森病组),临床很可能的MSA-P患者23例(MSA-P组)。所有患者至少有一侧肢体或头部存在静止性或姿势性震颤,完成震颤分析和急性左旋多巴冲击试验。观察患者静止、姿势震颤的优势频率、振幅和节律形式。结果 MSA-P组较帕金森病组统一帕金森病评价量表第Ⅲ部分评分高(t=-2.098, P<0.05),改善率明显降低(Z=-9.446, P<0.01),两组震颤评分和急性美多芭冲击试验的震颤改善率无显著性差异(P>0.05)。静止性震颤MSA-P组非同步非交替震颤者明显高于帕金森病组(χ2=8.756, P<0.01),细小无规律震颤者高于帕金森病组(χ2=4.788, P<0.05);姿势性震颤MSA-P组高频震颤(>6 Hz)者明显高于帕金森病组(χ2=11.312, P<0.01)。MSA-P组静止性震颤频率高于帕金森病组(t=-2.119, P<0.05);持物姿势性震颤频率高于帕金森病组(t=-2.274, P<0.05)。两组姿势性震颤评分越高,姿势性震颤和持物姿势性震颤频率越低。帕金森病组25%存在头部震颤,MSA-P组未见头部震颤。MSA-P组22.7%急性左旋多巴冲击试验震颤有>30%的改善,但总体改善率均未超过30%改善率。女性MSA-P患者震颤改善率较男性更高(P<0.05)。结论 帕金森病和MSA-P震颤特征有较多相似性,MSA-P患者震颤频率较高,静止性震颤以非同步非交替、细小无规律震颤为主,且少见肢体外震颤。小部分MSA-P患者左旋多巴冲击试验震颤改善有效,女性患者改善更明显。
Objective To compare the characteristics of the tremor of multiple system atrophy Parkinsonism type (MSA-P) with Parkinson's disease (PD), and improvement after acute levodopa challenge test. Methods From Match to September 2017, 70 patients with PD and 23 patients with probable MSA-P were included. All the patients were required of rest or postural tremor in at least one extremity or head, and accepted acute levodopa challenge test and analysis for dominant tremor frequency, amplitude and rhythm under resting state, posturing and holding 1000 g state, respectively.Results The score of Unified Parkinson Diease Rating Scale Part III was higher in MSA-P patients than in PD patients (t=-2.098, P<0.05), with less improvement after acute levodopa challenge test (Z=-9.446, P<0.01), while the tremor score and improvement were not significantly different between two groups (P>0.05). There were more frequence with non-alternating or synchronic tremor rhythm (χ2=8.756, P<0.01) and small irregular tremor in rest tremor (χ2=4.788, P<0.05) in MSA-P patients than in PD patients, as well as the high frequency tremor (>6 Hz) in postural tremor (χ2=11.312, P<0.01). The frequency of rest tremor was higher in MSA-P patients than in PD patients (t=-2.119, P<0.05), as well as the frequency of postural tremor with 1000 g (t=-2.274, P<0.05). Both PD and MSA-P patients showed, the lower frequency the postural tremor was, the higher the tremor scores were. There were 25% PD patients with head tremor, while none in MSA-P patients. Tremor score improved more than 30% after acute levodopa challenge test in 22.7% MSA-P patients, but none improved in UPDRS score. The frequence of tremor score improvement was more in female MSA-P patients than in males (P<0.05).Conclusion The features of the tremor are similar in PD and MSA-P, with some differences that MSA-P tend to higher frequency in rest or postural tremor, more non-alternating or synchronic tremor rhythm in rest tremor, and fewer has tremor besides limbs. Some MSA-P patients improve after acute levodopa challenge test, and women may improve more than men.
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