Factors related to the short term remission of tics in children with Tourette syndrome
Garcia-Ribes A, Marti-Carrera I, Martinez-Gonzalez MJ, Garaizar C, Prats-Vinas JM.
Unidad de Neuropediatria, Hospital de Cruces, Baracaldo, Vizcaya, Espana.
agarcia.ribes@hcru.osakidetza.net
INTRODUCTION: Tourette syndrome shows a fluctuating evolution, often masked by its comorbidity. OBJECTIVE: To study the clinical factors predicting the initial remission of tics in children with Tourette syndrome. Patients and methods. All patients attended during the last 5 years at a Child Neurology hospital based out patient clinic, with the diagnosis of Tourette syndrome according to DSM IV criteria, were selected. OUTCOME MEASURE: total remission of tics during at least 3 months, evaluated during the patient s second visit to our clinic. Demographic, clinic and therapeutic variables were studied. Statistical analysis was based on the Student t test or non parametric tests, as necessary. RESULTS: 53 patients, 44 males and 9 females. Age at starting tics: 6.9 2.2 years, time of evolution: 2 years (range: 1 9.4). Comorbidity in 51%: 34% with attention deficit hyperactivity disorder (ADHD), 17% with obsessive compulsive disorder (OCD) and school underachievement: 26%. Familial antecedents of tics, OCD, or ADHD: 49%. Tics remission at second visit to our clinic: 41.5%. Patients without remission were those with an earlier onset of tics (p=0.085), longer time of evolution (p< 0.05), or school underachievement (p= 0.024). Remission was not statistically associated with treatment. OCD and ADHD were associated with school failure but were not related to the tics evolution. CONCLUSION: The short term (at second visit), temporal (minimum 3 months) total remission of Tourette syndrome was not related to treatment but to previous duration of the syndrome and to factors (other than OCD and ADHD) that lead to school failure.
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