کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5038268 | 1472759 | 2017 | 9 صفحه PDF | دانلود رایگان |
- Patients with anxiety and related disorders were assessed for end-tidal CO2 (ETCO2) prior to receiving cognitive-behavioral therapy (CBT) in an outpatient clinic.
- Lower pre-treatment ETCO2 predicted premature dropout from CBT.
- Hyperventilation, as evidenced by lower ETCO2, is a poor prognostic indicator for CBT.
Recent clinical trial research suggests that baseline low end-tidal CO2 (ETCO2, the biological marker of hyperventilation) may predict poorer response to cognitive-behavioral therapy (CBT) for anxiety-related disorders. The present study examined the predictive value of baseline ETCO2 among patients treated for such disorders in a naturalistic clinical setting. Sixty-nine adults with a primary diagnosis of a DSM-5 anxiety disorder, obsessive-compulsive disorder, or posttraumatic stress disorder completed a 4-min assessment of resting ETCO2, and respiration rate (the first minute was analyzed). Lower ETCO2 was not associated with a diagnosis of panic disorder, and was associated with lower subjective distress ratings on certain measures. Baseline ETCO2 significantly predicted treatment dropout: those meeting cutoff criteria for hypocapnia were more than twice as likely to drop out of treatment, and ETCO2 significantly predicted dropout beyond other pre-treatment variables. Weekly measurement suggested that the lower-ETCO2 patients who dropped out were not responding well to treatment prior to dropout. The present results, along with previous clinical trial data, suggest that lower pre-treatment ETCO2 is a negative prognostic indicator for CBT for anxiety-related disorders. It is suggested that patients with lower ETCO2 might benefit from additional intervention that targets respiratory abnormality.
Journal: Behaviour Research and Therapy - Volume 90, March 2017, Pages 32-40