Retrocollis: classification, clinical phenotype, treatment outcomes and risk factors.
Retrocollis (RC) is a form of cervical dystonia (CD) that produces patterned, repetitive muscle contractions that result in neck extension. We performed a review of consecutive CD patients seen in our Division over a 15-year period. Out of 399 CD patients, 59 (14.8%) had features of RC. Pain was very frequently reported among patients ( approximately 80%). RC was frequently associated with neuroleptic exposure (20.3%) and a history of head/neck trauma (23.7%). Of patients injected with botulinum toxin type A, 24.5% reported excellent, 32.1% moderate, 16.9% mild and 24.5% no response to injections. Oral antidystonic medications had limited contribution to symptom relief.
Papapetropoulos
Spiridon
S
Division of Movement Disorders, Department of Neurology, University of Miami, Miller School of Medicine, Miami, FL 33136, USA. spapapetropoulos@med.miami.edu
Baez
Sheila
S
Zitser
Jennifer
J
Sengun
Cenk
C
Singer
Carlos
C
D000328:Adult; D019274:Botulinum Toxins, Type A / Q000627:therapeutic use; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009465:Neuromuscular Agents / Q000627:therapeutic use; D012189:Retrospective Studies; D012307:Risk Factors; D018709:Statistics, Nonparametric; D014103:Torticollis / Q000145:classification / Q000188:drug therapy / Q000453:epidemiology; D016896:Treatment Outcome
D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A