biostudies-literatureUnknown72(14)Schmidt A<h4>Objective</h4>To test the hypothesis that there is familial aggregation of dystonia and other movement disorders in relatives of patients with musician's dystonia (MD) and to identify possible environmental triggers.<h4>Methods</h4>The families of 28 index patients with MD (14 with a reported positive family history of focal task-specific dystonia [FTSD] and 14 with no known family history [FH-]) underwent a standardized telephone screening interview using a modified version of the Beth Israel Dystonia Screen. Videotaped neurologic examinations were performed on all participants who screened positive and consensus diagnoses established. All patients were investigated for DYT1 dystonia and suitable families were tested for linkage to DYT7. All family members were administered questionnaNeurology1248-54https://www.ebi.ac.uk/biostudies/studies/S-EPMC2677486biostudies-literatureEtiology of musician's dystonia: familial or environmental?PMC2677486Hagenah JEnders LAltenmuller ELohmann KMunchau AKlein CBruggemann NSaunders-Pullman RSchmidt AJabusch HCBressman SBKramer PLfalseEtiology of musician's dystonia: familial or environmental?<h4>Objective</h4>To test the hypothesis that there is familial aggregation of dystonia and other movement disorders in relatives of patients with musician's dystonia (MD) and to identify possible environmental triggers.<h4>Methods</h4>The families of 28 index patients with MD (14 with a reported positive family history of focal task-specific dystonia [FTSD] and 14 with no known family history [FH-]) underwent a standardized telephone screening interview using a modified version of the Beth Israel Dystonia Screen. Videotaped neurologic examinations were performed on all participants who screened positive and consensus diagnoses established. All patients were investigated for DYT1 dystonia and suitable families were tested for linkage to DYT7. All family members were administered questionna2009-01-01T00:00:00Z2009 Apr2025-04-05T13:13:02.504Z2019-03-27T00:22:10ZS-EPMC26774861934960510.1212/01.wnl.0000345670.63363.d1