[Hyperventilation syndrome].

Hyperventilation syndrome is a disorder affecting children and adults, mostly women. It is frequently associated with anxiety disorders, and greatly affects quality of life. Diagnosis, which unfortunately is most often established late, is a diagnosis of elimination. It rests on a wide range of non-specific signs, on Nijmegën's clinical scale as well as on a hyperventilation provocative test. In most cases, specialized therapeutic interventions allow for an adequate control of ventilation and symptom relief.