Tourette syndrome
| Tourette syndrome | |
|---|---|
| Synonyms | Tourette's syndrome, Tourette's disorder, Gilles de la Tourette syndrome (GTS) |
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| Georges Gilles de la Tourette (1857–1904), namesake of Tourette syndrome | |
| Classification and external resources | |
| Specialty | Pediatrics, neurology |
| ICD-10 | F95.2 |
| ICD-9-CM | 307.23 |
| OMIM | 137580 |
| DiseasesDB | 5220 |
| MedlinePlus | 000733 |
| eMedicine | med/3107 neuro/664 |
| MeSH | D005879 |
| GeneReviews | |
Tourette syndrome (TS or simply Tourette's), is a common neuropsychiatric disorder with onset in childhood, characterized by multiple motor tics and at least one vocal (phonic) tic. These tics characteristically wax and wane, can be suppressed temporarily, and are typically preceded by an unwanted urge or sensation in the affected muscles. Some common tics are eye blinking, coughing, throat clearing, sniffing, and facial movements. Tourette's does not adversely affect intelligence or life expectancy.
Tourette's is defined as part of a spectrum of tic disorders, which includes provisional, transient and persistent (chronic) tics. While the exact cause is unknown, it is believed to involve a combination of genetic and environmental factors. There are no specific tests for diagnosing Tourette's; it is not always correctly identified because most cases are mild and the severity of tics decreases for most children as they pass through adolescence. Extreme Tourette's in adulthood, though sensationalized in the media, is a rarity; tics are often unnoticed by casual observers.
In most cases, medication for tics is not necessary. Education is an important part of any treatment plan, and explanation and reassurance alone are often sufficient treatment. Many individuals with Tourette's go undiagnosed or never seek medical care. Among those who are seen in specialty clinics, attention-deficit hyperactivity disorder (ADHD) and obsessive–compulsive disorder (OCD) are present at higher rates. These co-occurring diagnoses often cause more impairment to the individual than the tics; hence, it is important to correctly identify associated conditions and treat them.
About 1% of school-age children and adolescents have Tourette's. It was once considered a rare and bizarre syndrome, most often associated with coprolalia (the utterance of obscene words or socially inappropriate and derogatory remarks), but this symptom is present in only a small minority of people with Tourette's. The condition was named by Jean-Martin Charcot (1825–1893) on behalf of his resident, Georges Albert Édouard Brutus Gilles de la Tourette (1857–1904), a French physician and neurologist, who published an account of nine patients with Tourette's in 1885.
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