In this study, 100 patients were evaluated prior to surgery to assess psychiatric status. The demographic anthropometric and psychological characteristics are described. Seventeen patients developed severe psychiatric complications and required hospitalization; the diagnoses which precipitated hospital admission were most commonly affective disorders (especially major depression with suicidal ideation). The only deaths in the sample of 100 occurred among the patients who required post-surgical psychiatric hospitalization. The hospitalized group was compared to a matched group drawn from the original 100 patients. Factors associated with post-surgical psychiatric hospitalization were: presurgical psychiatric hospitalization, presence of multiple pre-surgical Axis I psychiatric diagnoses, and untreated Axis I diagnosis at the time of pre-surgical assessment. Psychiatric screening criteria were revised and 31 subsequent patients were evaluated; less than half of this group were found suitable for surgery at the time of preliminary assessment.
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