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- Title
Vim thalamotomy in a patient with Holmes' tremor and palatal tremor - Pathophysiological considerations.
- Authors
Maki, Futaba; Sato, Sumito; Watanabe, Katsushige; Yanagisawa, Toshiyuki; Hagiwara, Yuta; Shimizu, Takahiro; Hasegawa, Yasuhiro
- Abstract
Background: We peformed a ventral intermediate nucleus (Vim) thalamotomy in a patient with Holmes' tremor and palatal tremor. The frequencies of these movement disorders were 4 Hz and 3 Hz, respectively. Vim thalamotomy stopped the Holmes' tremor but not the palatal tremor. Our observations suggest different mechanisms for these two involuntary movements. Case presentation: A 57-arm 11 months after a pontine hemorrhage. Transoral carotid ultrasonography revealed periodic motion of her posterior pharyngeal wall with a frequency of 3 Hz. Recording of neuronal activities in the thalamus revealed a 4Hz rhythmic discharge time that was associated with her tremor in the contralateral arm. A left Vim thalamotomy was performed. The resting tremor of the upper limb stopped, but the kinetic tremor recurred 6 months after the thalamotomy. No effect was observed on her palatal tremor. Conclusions: The different effects of Vim thalamotomy on the Holmes' tremor and palatal tremor suggest different oscillation sources for these two involuntary movements.
- Subjects
THALAMOTOMY; TREMOR; PATHOLOGICAL physiology; MOVEMENT disorders; HEMORRHAGE; ULTRASONIC imaging
- Publication
BMC Neurology, 2015, Vol 15, Issue 1, p1
- ISSN
1471-2377
- Publication type
Case Study
- DOI
10.1186/s12883-015-0277-5