Detailed contribution information
| Contribution title | 3441 - Tourette’s syndrome comorbidity and epileptiform abnormalities occurrence in children diagnosed with attention-deficit/hyperactivity disorder |
|---|---|
| Contribution code | PS02-47 (P) |
| Authors | |
| Form of presentation | Poster |
| Topic |
|
| Abstract |
Children with attention-deficit/hyperactivity disorder (ADHD) may have comorbid Tourette’s syndrome (TS), and ADHD children have more often EEG with epileptiform abnormalities (EA) than healthy children. The purpose of this study was to investigate whether the occurrence of TS comorbidity influenced the occurrence of EA in ADHD children. Method Subjects of this retrospective study were 505 ADHD children (82% male) without epilepsy, aged between 5-14 years, who were diagnosed between January 2000 and December 2005. At least one standard EEG was performed on all patients. EEG findings were coded as either EEG with EA or EEG without EA. Groups of patients with and without TS with were compared and occurrence of EA was analyzed. Children with EA were followed-up at least 2 years. Results EA was found in 27 (5.3 %) of ADHD children, and TS was diagnosed in 31 cases (6.1%). Of the 31 ADHD patients with TS (ADHD-TS), 5 (16.1%) had EEG with EA. Among 474 ADHD patients without TS, 22 (4.6%) had EEG with EA. EA occur more often in children diagnosed with both ADHD and TS, than in ADHD children without TS co-morbidity. At 2 years’ follow-up, none of the patients who had EA at ADHD assessment developed epilepsy. Conclusion EA occur more often in children diagnosed with both ADHD and TS, than in ADHD patients. The temporarily occurrence of EA at ADHD assessment was not associated with increased risk for epileptic seizure during follow-up. |