Two primary outcomes of efficacy and acceptability showed a possible advantage of benzodiazepines over placebo .
Low- quality evidence shows a possible superiority of benzodiazepine over placebo in the short-term treatment of panic disorders .
Due to these limitations , our results regarding the efficacy of benzodiazepines versus placebo provide only limited guidance for clinical practice .
BACKGROUND Panic disorder is characterised by recurrent unexpected panic attacks consisting of a wave of intense fear that reaches a peak within a few minutes .
Panic disorder is a common disorder , with an estimated lifetime prevalence of 1 % to 5 % in the general population and a 7 % to 10 % prevalence in primary care setting s. Its aetiology is not fully understood and is probably heterogeneous .
Panic disorder is treated with psychological and pharmacological interventions , often used in combination .
Although benzodiazepines are frequently used in the treatment of panic disorder , guidelines recommend antidepressants , mainly selective serotonin reuptake inhibitors ( SSRIs ) , as first-line treatment for panic disorder , particularly due to their lower incidence of dependence and withdrawal reaction when compared to benzodiazepines .
Despite these recommendations , benzodiazepines are widely used in the treatment of panic disorder , probably because of their rapid onset of action .
OBJECTIVES To assess the efficacy and acceptability of benzodiazepines versus placebo in the treatment of panic disorder with or without agoraphobia in adults .
Effect size as a measure of symptom-specific drug change in clinical trials.
A data -analytic strategy is proposed for identifying the symptom-specific effects of each medication in a clinical trial . The within-group effect size is a st and ardized ratio of the pre-post change relative to the stability of change for each treatment group . Advantages of using this descriptive approach are illustrated by examining antidepressant effects of alprazolam , imipramine , and placebo in a clinical trial for patients meeting criteria for both panic disorder and depression . There was a significant difference between active medication and placebo on the Hamilton Rating Scale for Depression ( HAM-D ) total , but no difference between the anti-depressant effects of the active medications despite their diverse psychopharmacologic properties . Examination of effect sizes for each HAM-D item revealed distinct symptom-specific effects of each active medication in this study sample . Although these descriptive findings can not be used for inferential conclusions , they can be used to guide the design of future trials
Two primary outcomes of efficacy and acceptability showed a possible advantage of benzodiazepines over placebo .
Low- quality evidence shows a possible superiority of benzodiazepine over placebo in the short-term treatment of panic disorders .
Due to these limitations , our results regarding the efficacy of benzodiazepines versus placebo provide only limited guidance for clinical practice .
BACKGROUND Panic disorder is characterised by recurrent unexpected panic attacks consisting of a wave of intense fear that reaches a peak within a few minutes .
Panic disorder is a common disorder , with an estimated lifetime prevalence of 1 % to 5 % in the general population and a 7 % to 10 % prevalence in primary care setting s. Its aetiology is not fully understood and is probably heterogeneous .
Panic disorder is treated with psychological and pharmacological interventions , often used in combination .
Although benzodiazepines are frequently used in the treatment of panic disorder , guidelines recommend antidepressants , mainly selective serotonin reuptake inhibitors ( SSRIs ) , as first-line treatment for panic disorder , particularly due to their lower incidence of dependence and withdrawal reaction when compared to benzodiazepines .
Despite these recommendations , benzodiazepines are widely used in the treatment of panic disorder , probably because of their rapid onset of action .
OBJECTIVES To assess the efficacy and acceptability of benzodiazepines versus placebo in the treatment of panic disorder with or without agoraphobia in adults .