Writer’s Cramp: Brainstem connection revisited

Choudhury, Supriyo; Singh, Rasnik; Trivedi, Santosh; Shubham, Shantanu; Baker, Mark R.; Baker, Stuart N.; Kumar, Hrishikesh

doi:10.1016/j.parkreldis.2017.11.115

Cited by 1 publication

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“…A review of the literature shows that there is a great deal of variation in the frequency of tremor in WC (5-65%) patients which may be due to several factors such as types of patients included and methods of assessment used (Table 2). [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] We observed that men are affected more commonly than women in WC, which is consistent with the literature. [7,11,23,24] Interestingly, in our study, for all the 12 females with WC, writing was an essential part of their profession, with 5 (42%) being students, 3 (25%) working as nurses, 2 (17%) as teachers, one (8%) as a policewoman and one (8%) as a doctor.…”

Section: Discussionsupporting

confidence: 91%

“…[7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] We observed that men are affected more commonly than women in WC, which is consistent with the literature. [7,11,23,24] Interestingly, in our study, for all the 12 females with WC, writing was an essential part of their profession, with 5 (42%) being students, 3 (25%) working as nurses, 2 (17%) as teachers, one (8%) as a policewoman and one (8%) as a doctor. The majority of the students in our cohort did not have tremor, whereas all the three doctors had tremor.…”

Section: Discussionsupporting

confidence: 91%

“…[6] Most studies have included a relatively small number of patients and they have not looked into the different demographic and clinical factors associated with tremor in WC patients. [7][8][9][10][11][12][13][14][15][16][17][18][19] Also, as we gradually move to a digital world, writing has become less common these days, leading to an underreporting of WC, and difficulty in establishing the precise onset of dystonia and tremor.…”

Section: Introductionmentioning

confidence: 99%

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Tremor in Writer’s Cramp Patients: A Retrospective Study

Datta

Batra

Pandey³

2022

Dystonia

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Background: Tremor is one of the important motor phenotypes of dystonia, however, there is a lacuna in the literature regarding the occurrence of tremor in task-specific dystonia such as writer’s cramp (WC).Aims: To delineate the demographic and clinical characteristics of tremor in WC patients.Methods: This is a detailed chart review of 105 patients of WC who were classified as WC with dystonic action tremor (WCT+) (n = 39; 37.1%) and WC without tremor (WCT-) (n = 66; 53.9%).Results: The mean age of patients was 41.10 ± 14.02 years in the WCT + group and 36.40 ± 14.66 years in the WCT-group. Males were more commonly affected (94.9% in WCT+ and 84.8% in WCT-). The mean duration of disease was significantly higher in WCT + as compared to WCT- (4.16 ± 4.48 years vs. 2.57 ± 2.81 years, p = 0.024). One-third of our patients (29.52%; n = 31) were students but, and the majority of them were classified as WCT- (80.64%, n = 25, p = 0.01). However, tremor was present in all the three doctors in our cohort with WC (p = 0.03). The motor overflow to the elbow and shoulder was significantly associated with the presence of tremor (46.1% of WCT + vs. 15.2% of WCT-patients, p = 0.001). Statistically, there were no significant differences between WCT+ and WCT-patients regarding the presence of complex WC (dystonia during other activities as well) (p = 0.976), mirror dystonia (p = 0.211), and finger flexion/extension abnormalities (p = 0.111).Conclusion: The presence of tremor in WC was associated with a longer duration of disease and the presence of motor overflow.

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