Hyperventilation in neurological patients

Neurological manifestations of the hyperventilation syndrome.

Seventy-eight patients with the hyperventilation syndrome are described, none of whom had been diagnosed prior to referral for neurological assessment. There is a constellation of symptoms associated with this condition, and attacks need to be reproduced by hyperventilation in order for the diagnosis to be established. Loss of consciousness and paraesthesiae were more frequent than in previousl...

Effects of Hyperventilation Can hyperventilation cause syncope?

Hyperventilation in panic disorder patients and healthy first-degree relatives.

Our aim was to observe the induction of panic attacks by a hyperventilation challenge test in panic disorder patients (DSM-IV) and their healthy first-degree relatives. We randomly selected 25 panic disorder patients, 31 healthy first-degree relatives of probands with panic disorder and 26 normal volunteers with no family history of panic disorder. All patients had no psychotropic drugs for at ...

Neurological manifestations in dengue patients.

To determine the frequency and the natural history of neurological manifestations of dengue infection in Thai children, 1,493 children diagnosed with dengue infection by serology and admitted to the Department of Pediatrics, Chulalongkorn Hospital, Bangkok, Thailand from 1987 to 1998 were reviewed from prospectively recorded medical charts. There were 80 children identified with neurological ma...

Post-hyperventilation apnoea in patients with brain damage.

A study of 100 subjects has confirmed that brief voluntary hyperventilation commonly causes apnoea in patients with supramedullary lesions, but not in healthy people. Apnoea was related to drowsiness rather than to the extent of the lesion; it was unrelated to the measured reduction in end-tidal carbon dioxide tension.