Panic disorder in a breath-holding challenge test: a simple tool for a better diagnosis

• Autor(a) principal: Nardi,Antonio E.
• Data de Publicação: 2003
• Outros Autores: Nascimento,Isabella, Valença,Alexandre M., Lopes,Fabiana L., Mezzasalma,Marco A., Zin,Walter A.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Arquivos de neuro-psiquiatria (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2003000500003
• topic: panic attacks; respiration; anxiety disorder; comorbidity; ventilation

OBJECTIVE: Our aim was to observe if anxiety disorder patients - DSM-IV - respond in a similar way to the induction of panic attacks by a breath-holding challenge test. METHOD: We randomly selected 29 panic disorder (PD) patients, 27 social anxiety disorder (SAD) patients, 21 generalized anxiety disorder (GAD) patients. They were induced to breath-hold for as long as possible four times with two-minute interval between them. Anxiety scales were applied before and after the test. RESULTS: A total of 44.8% (n=13) PD patients, 14.8% (n=4) SAD patients, 9.5% (n=2) GAD patients had a panic attack after the test (c²= 21.44, df= 2, p=0.001). There was no heart rate or anxiety levels difference among the groups before and after the test. CONCLUSION: In this breath-holding challenge test the panic disorder patients were more sensitive than other anxiety disorder patients.