title: Early neurological worsening in patients with Wilson's disease.
abstract: BACKGROUND
  Early neurological worsening during treatment initiation for Wilson's disease (WD) is an unresolved problem. Our aim was to establish the frequency and outcome of early neurological worsening in patients with WD.
  
  
  METHODS
  We analyzed 143 symptomatic patients diagnosed with WD between 2005 and 2009. Early neurological deterioration was based on worsening on the Unified Wilson's Disease Score Scale, scored at baseline through 6 months or occurrence of new neurological symptoms. Reversibility of worsening was followed up to 24 months.
  
  
  RESULTS
  Early neurological worsening was observed in 11.1% (16/143) and involved only patients with neurological signs at diagnosis. Mean time to worsening from treatment initiation was 2.3 ± 1.9 months. Neurological deterioration was completely reversible in 53% (8/15) and partially in 13% (2/15) of patients over 9.2 ± 5.2 months. Patients who experienced early deterioration had significantly more severe baseline neurological deficit, higher prevalence of thalamic (66% vs 29%) and brain stem (73% vs 33%) lesions seen on baseline magnetic resonance imaging, and more often used concomitant dopamine receptor antagonists (46% vs 5%). Disease duration, treatment type (d-penicillamine or zinc sulfate), type of neurological manifestations, initial copper metabolism results, and liver function parameters did not differ between evaluated groups.
  
  
  CONCLUSIONS
  Neurological worsening at the beginning of anti-copper therapy may occur in over 10% of WD patients. Special attention should be paid to those with severe initial neurological manifestations, advanced brain injury and using dopamine receptor antagonists. Type of anti-copper therapy did not show clear association with early neurological worsening.
authors.affiliation: II Department of Neurology, Institute Psychiatry and Neurology, Warsaw, Poland.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Litwin
authors.affiliation: II Department of Neurology, Institute Psychiatry and Neurology, Warsaw, Poland.
authors.forename: Karolina
authors.initials: K
authors.lastname: Dzieżyc
authors.affiliation: II Department of Neurology, Institute Psychiatry and Neurology, Warsaw, Poland.
authors.forename: Michał
authors.initials: M
authors.lastname: Karliński
authors.affiliation: II Department of Neurology, Institute Psychiatry and Neurology, Warsaw, Poland.
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Chabik
authors.affiliation: Department of Radiology, Institute Psychiatry and Neurology, Warsaw, Poland.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Czepiel
authors.affiliation: II Department of Neurology, Institute Psychiatry and Neurology, Warsaw, Poland; Department of Experimental and Clinical Pharmacology, Medical University, Warsaw, Poland. Electronic address: czlonkow@ipin.edu.pl.
authors.forename: Anna
authors.initials: A
authors.lastname: Członkowska
mesh_terms: D000293:Adolescent; D000328:Adult; D001921:Brain / Q000473:pathology; D003300:Copper / Q000378:metabolism; D015259:Dopamine Agents / Q000627:therapeutic use; D005260:Female; D005500:Follow-Up Studies; D006527:Hepatolenticular Degeneration / Q000150:complications* / Q000188:drug therapy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009422:Nervous System Diseases / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D009460:Neurologic Examination; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D015259:Dopamine Agents; D003300:Copper
keywords: Copper; Neurological deterioration; Wilson's disease; Zinc sulfate; d-Penicillamine