Panic disorder respiratory subtype: a comparison between responses to hyperventilation and CO2 challenge tests.
In this study 117 panic disorder patients were divided into a respiratory subtype group and a non-respiratory subtype group. The respiratory subtype patients were observed to be more sensitive to the 35% CO(2) inhalation challenge test and the hyperventilation test than the non-respiratory subtype patients.
Freire
Rafael C
RC
Laboratory of Panic & Respiration, Institute of Psychiatry, Federal University of Rio de Janeiro, Rua Visconde de Pirajá, 407/702, 22410-003, Rio de Janeiro, Brazil. rafaelcrfreire@terra.com.br
Lopes
Fabiana L
FL
Valença
Alexandre M
AM
Nascimento
Isabella
I
Veras
Andre B
AB
Mezzasalma
Marco A
MA
de-Melo-Neto
Valfrido L
VL
Zin
Walter A
WA
Nardi
Antonio E
AE
D000280:Administration, Inhalation; D000328:Adult; D002245:Carbon Dioxide / Q000008:administration & dosage / Q000009:adverse effects*; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005260:Female; D006801:Humans; D006985:Hyperventilation / Q000139:chemically induced* / Q000453:epidemiology*; D008297:Male; D016584:Panic Disorder / Q000453:epidemiology* / Q000209:etiology*
D002245:Carbon Dioxide