Prevalence of dystonia in Akita prefecture in Northern Japan

Sugawara, Masashiro; Watanabe, Sumio; Toyoshima, Itaru

doi:10.1002/mds.20880

Cited by 21 publications

(32 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The 15 studies analysed came from Europe (11 studies13–23), Japan (2 studies24 25), India (1 study26) and USA (1 study;27 table 1); all were from the northern hemisphere covering a latitude of 41° (Reykjavik, Iceland at 64.1° to Kolkata, India at 22.6°). Most (13 studies) were service-based except for two epidemiological surveys in northern England13 and India 26.…”

Section: Resultsmentioning

confidence: 99%

Sun exposure is an environmental factor for the development of blepharospasm

Molloy

Williams

Kimmich

et al. 2015

J Neurol Neurosurg Psychiatry

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Sun exposure is an environmental factor for the development of blepharospasm

Molloy

Williams

Kimmich

et al. 2015

J Neurol Neurosurg Psychiatry

View full text Add to dashboard Cite

show abstract

“…The high rate here can be mostly attributed to the intensive case ascertainment, as the authors screened the Reykjavik hospital records for a period of over 50 years. Sugawara et al [14] investigated the prevalence of dystonia in northern Japan and found 177 patients with primary dystonia (169 with focal dystonia). The high prevalence of focal dystonia (144 per million) can be explained by the study design.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Primary Focal or Segmental Dystonia in Adults in the District of Foggia, Southern Italy: A Service-Based Study

et al. 2009

View full text Add to dashboard Cite

Background: Primary focal or segmental dystonia is a rare clinical condition including early-onset dystonia, which has the tendency to generalize, and late-onset dystonia, which may be focal or segmental. The prevalence of late-onset dystonia ranges from 30 to 7,320 cases per million, but no data are available in Italy. Methods: A service-based study was conducted in the period 1 January 2001 through 31 December 2002 in the administrative district of Foggia, southern Italy (population 541,653). Cases were traced through hospital discharge diagnosis, botulinum toxin services, day hospital access, ear, nose and throat, ophthalmology and orthopedic surgery specialists, and territorial outpatient services. Inclusion criteria were age 17 years or older, residency in the study area and a diagnosis of primary focal/segmental dystonia. Results: A total of 69 patients were included, giving a crude prevalence of 127.4 per 1,000,000 (women: 146.4; men: 107.0; age 18–34 years: 39.2; 35–54 years: 98.7; 55–74 years: 273.6; 75+ years: 163.3). The standardized rate was 137.5 (95% confidence interval 107.0–174.6). Blepharospasm was the commonest clinical condition (prevalence 68.2), followed by cervical dystonia (prevalence 44.8). Conclusion: The prevalence of primary focal or segmental dystonia in Italy is in keeping with several other reports, but is lower than in studies performed in northern Europe, Minnesota, USA, and Japan. The difference in our results may be mostly explained by misdiagnosis, underascertainment of cases and a fairly limited observation period.

show abstract

“…However, movement disorders in the context of the emergency room (ER) have been under-recognized and underestimated, despite the disabling features of the disorders. Most previous studies were based on outpatient clinic data and focused on only one type of movement disorder [1,2,18]. Consequently, there is little information about the frequency and causes of the various movement disorders seen in the ER.…”

Section: Introductionmentioning

confidence: 98%

Movement disorders at a university hospital emergency room

et al. 2008

View full text Add to dashboard Cite

We prospectively evaluated the clinical features and etiologies of all common categories of movement disorder seen in the emergency room (ER) of an urban university hospital over a period of 12 months. We divided movement disorders according to the presenting phenomenology likely to dominate the clinical presentation, that is, gait disorder, tremor, dystonia, myoclonus, and acute akinetic crisis and classified a specific etiology in the individual phenomenology. In one year, there were 60,002 ER visits; of these, 58 (0.09 %) were diagnosed as a primary movement disorder. The most common clinical presentation was gait disorder (n = 21, 36.2 %), followed by myoclonus (n = 16, 27.6 %), dystonia (n = 10, 17.2 %), tremor (n = 8, 13.8 %), and acute akinetic crisis (n = 3, 5.2 %). Comparing the movement disorders, the mean age of the patients with dystonia was significantly lower than that of patients with other movement disorders (P < 0.001). Of the patients, 37 (63.8 %) had drug-related movement disorders. The contribution of drugs was significantly higher in patients with dystonia compared with the other movement disorders (P < 0.01). Our study showed that a large proportion of the movement disorders seen in the ER are drug-related. Careful selection of drugs while prescribing would decrease movement disorder-related visits to the ER.

show abstract

Prevalence of dystonia in Akita prefecture in Northern Japan

Cited by 21 publications

References 8 publications

Sun exposure is an environmental factor for the development of blepharospasm

Sun exposure is an environmental factor for the development of blepharospasm

Prevalence of Primary Focal or Segmental Dystonia in Adults in the District of Foggia, Southern Italy: A Service-Based Study

Movement disorders at a university hospital emergency room

Contact Info

Product

Resources

About