Juvenile Huntington's disease: a population-based study using the General Practice Research Database
Open Access
- 3 April 2013
- Vol. 3 (4), e002085
- https://doi.org/10.1136/bmjopen-2012-002085
Abstract
Background The juvenile form of Huntington's disease (HD) is a rare disorder. There are no population-based estimates of either its incidence or prevalence in any population in the world. The present study was undertaken to estimate the frequency of juvenile HD in the UK and to examine the range of pharmacological treatments used in its management. Method The records of individuals under the age of 21 who had recorded diagnoses of HD were retrieved from the General Practice Research Database from 1990 through 2010. From these data estimates of incidence and prevalence were made as well as the specific treatments used in the treatment of its physical and psychological manifestations. Results 12 incident and 21 prevalent patients with juvenile HD were identified. The 21 prevalent cases included the 12 incident cases. The minimum population-based estimate of incidence is 0.70 (95% CI 0.36 to 1.22) per million patient-years. The minimum estimate of prevalence is 6.77/million (95% CI 5.60 to 8.12) per million patient-years. Patients were most frequently prescribed antidepressants, hypnotics, antipsychotics and treatments for motor abnormalities. Conclusions In the UK, juvenile HD is an extremely rare and complex disorder. The prescribing data demonstrate that the clinical management of juvenile HD is undertaken with no formal evidence base for the efficacy or safety of the treatments used. Research into the safety and efficacy of appropriate therapies is urgently required to offset the haphazard nature of prescribing. Multinational collaboration will be necessary to enrol sufficient numbers. Exploratory studies, though, should begin now.Keywords
This publication has 8 references indexed in Scilit:
- The Prevalence of Juvenile Huntington's Disease: A Review of the Literature and Meta-AnalysisPLoS Currents, 2012
- Current Pharmacological Management in Juvenile Huntington’s DiseasePLoS Currents, 2012
- Huntington's Disease: Advocacy Driving ScienceAnnual Review of Medicine, 2012
- Huntington's diseaseBMJ, 2010
- Validation and validity of diagnoses in the General Practice Research Database: a systematic reviewBritish Journal of Clinical Pharmacology, 2009
- Psychiatric and Cognitive Difficulties as Indicators of Juvenile Huntington Disease Onset in 29 PatientsArchives of Neurology, 2007
- The epidemiology of Huntington's disease in Northern Ireland.Journal of Medical Genetics, 1995
- Juvenile Huntington diseaseHuman Genetics, 1986