Psychiatric aspects of chest pain in the emergency department.

We estimate that a third of the patients who present to the ED with chest pain have a current psychiatric disorder and that psychiatric disorders among chest pain patients are associated with a high rate of ED utilization for chest pain evaluations. Physicians in the ED recognize only a small fraction of the psychiatric disorders, so appropriate treatment or referral may be infrequent. The proportion of chest pain patients with CAD who also have a psychiatric disorder may be in the range of 20% to 30%, justifying careful assessment of psychiatric disorders in CAD patients. We conclude that the psychiatric aspects of chest pain are sufficiently prevalent, clinically significant, and a contributor to unnecessarily high utilization of medical services. We call for clinical research to address these questions by outlining three areas of study that will advance our knowledge and care of the patient with chest pain.