Psychiatric-Medical ComorbidityPrevalence and clinical correlations of catatonia in older adults referred to a liaison psychiatry service in a general hospital

AimTo determine the frequency and clinical correlations of catatonia in older patients referred to a liaison psychiatry service in a general hospital.Patients and MethodsAll patients over 65 years referred to liaison psychiatry were screened for catatonic phenomena with the Bush-Francis Catatonia Screening Instrument (BFCSI) between January and May 2012. Their clinical characteristics and the outcome of treatment were recorded.ResultsOne hundred and twelve patients over 65 years were referred. Ten (8.9%) met research diagnostic criteria for catatonia and 7 (6.3%) Diagnostic and Statistical Manual of Mental Disorders, 4th Edition criteria for catatonia. All patients presented with the inhibited variant and 5 to 12 catatonic signs. Three patients presented concomitant delirium. The etiology of catatonia was multifactorial, and complications and death were frequent (40% and 20%, respectively). Lorazepam achieved full resolution of catatonia in 50% of patients.ConclusionsCatatonia in older adults referred to liaison psychiatry in a general hospital is not infrequent and has a multifactorial etiology. The BFCSI is a simple and reliable instrument to detect catatonia in this population. Lorazepam seems to be an effective treatment.