Treatment of Panic Disorder Among Individuals Consulting Emergency Departments for Non Cardiac Chest Pain

Inclusion Criteria: * Aged 18 and over * Mastered oral and written French * Consulted an emergency department for chest pain with very low risk of coronary disease (normal ECG and blood tests) * Met criteria for Panic Disorder Exclusion Criteria: * Chest pain with an obvious medical origin (obvious trauma or abnormal pulmonary x-rays) * Had received cognitive-behavior therapy for Panic Disorder in the last six months * Cognitive impairment preventing the completion of psychological assessment * Past or present psychotic episode, Bipolar Disorder, or organic mental disorder * Current Abuse or Dependence Disorder * If another Mental Disorder is present, its severity was equal or inferior to the severity of Panic Disorder * Current medical condition preventing the participant from receiving pharmacological of cognitive-behavior treatment