Follow-up study of patients with panic disorder and agoraphobia with panic attacks treated with tricyclic antidepressants

SummaryIn a previous study of 15 panic patients, we demonstrated that body-related (somatic) word stimuli elicited an enhanced positive cortical slow wave compared to non-somatic word stimuli. Healthy controls did not show this difference. The present paper reports on psychometric ratings in relation to cortical slow waves in these patients. Patients were clinically reexamined after about 1.5 years. Although no significant correlations between neurophysiology and psychometric measures could be found at the onset of the study, there was a significant correlation between improvement over the follow-up period and neurophysiology. A decline in the Hamilton Anxiety Scale (HAMA), which proved to be the best estimate for improvement, was associated with the relative magnitude of the positive slow wave elicited by somatic stimuli. Our findings support cognitive models of panic disorder, which stress that abnormal processing of bodily symptoms is relevant for the development and/or maintenance of the disorder.

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Long-term outcome in pharmacotherapy-resistant patients with panic disorder treated with cognitive-behavior therapy: 5-year follow-up

European Psychiatry ◽

10.1016/s0924-9338(11)71868-5 ◽

2011 ◽

Vol 26 (S2) ◽

pp. 157-157

Author(s):

E. Heldt ◽

C. Blaya ◽

L. Kipper ◽

G. Salum Junior ◽

V.N. Hirakata ◽

...

Keyword(s):

Panic Disorder ◽

Treatment Response ◽

Life Events ◽

Stressful Life Events ◽

Panic Attacks ◽

Stressful Life ◽

Cognitive Behavior ◽

Long Term Treatment

BackgroundThere is a limitation of data about factors associated with treatment response in panic disorder (PD) patients at long-term follow-up period. The aim of this study was to evaluate the long-term treatment response of pharmacotherapy-resistant patients with PD after 5 years of cognitive-behavior group therapy (CBGT) and to identify factors that predict this outcome.MethodSixty-four patients who completed 12 sessions of CBGT were followed for 5-year. Outcome measures were evaluated by the Clinical Global Impression (CGI) and quality of life (QoL) using WHOQOL-bref. Demographic and clinical features, stressful life events were the variables investigated as predictors of CBGT response across follow-up period.ResultsTreatment was associated with significant reduction in symptoms severity (agoraphobia, anticipatory anxiety and panic attacks) with maintenance of gains at 5-year of follow-up (p < 0.05). Twenty-four (40%) of the sample remained in remission after 5 years, 12 (20%) relapsed during the follow-up period and 24 (40%) were non-responder to CBGT. The poor CBGT response had an important negative impact in QoL. Regression analyzes showed that comorbidity with dysthymia (p = 0.017) and stressful life events (p = 0.012) as the most important predictors to worse response.ConclusionsThe improvement in all evaluations suggested that brief CBGT for pharmacotherapy-resistant patients could be an alternative as next-step strategy for residual symptoms with maintenance of the gains after 5 years as assessed across follow-up period. New strategies should be tried for resistant patients, such as those with dysthymia comorbidity, and some specific tool in order to cope with adverse events.

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