Panic attacks may be unexpected, situationally bound, eg, seeing a snake, or situationally predisposed, eg, while flying. Panic attacks vary in intensity and frequency. Panic attacks, particularly associated with agoraphobia, may cause significant disability and diminished quality of life. Major clinical subgroups Cardiorespiratory complaints dominate.
Cognitive symptoms dominate.
Comorbidity increases risk. Earlier onset increases risk. Severity increases risk. History of past suicide attempts increases risk. Pulmonary disease commonly coexists.