• Paul H Desan, Paula C Zimbrean, Andrea J Weinstein, Janis E Bozzo, and William H Sledge.
• Department of Psychiatry, Yale University School of Medicine, Yale New Haven Hospital, New Haven, CT 06504, USA. paul.desan@yale.edu
• Psychosomatics. 2011 Nov 1;52(6):513-20.

BackgroundSome studies suggest intensive psychiatric consultation services facilitate medical care and reduce length of stay (LOS) in general hospitals.ObjectiveTo compare LOS between a consultation-as-usual model and a proactive consultation model involving review of all admissions, rapid consultation, and close follow-up.MethodsLOS was compared in an ABA design between a 33-day intervention period and 10 similar control periods, 5 before and 5 after the intervention, on an internal medical unit. During the intervention period, a staff psychiatrist met with the medical team each weekday, reviewed all admissions, provided immediate consultation as needed, and followed all cases throughout their hospital stay.ResultsTime required for initial case review was brief, 2.9 ± 2.2 minutes per patient (mean ± S.D.). Over 50% of admissions had mental health needs: 20.3% were estimated to require specialist consultation to avoid potential delay of discharge. The consultation rate for the intervention sample was 22.6%, significantly greater than in the control sample, 10.7%. Mean LOS was significantly shorter in the intervention sample, 2.90 ± 2.12 versus 3.82 ± 3.30 days, and the fraction of cases with LOS > 4 days was significantly lower, 14.5% versus 27.9%. A rough cost benefit analysis was favorable with at least a 4.2 ratio of financial benefit to cost.ConclusionsPsychiatric review of all admissions is feasible, indicates a high incidence of mental health barriers to discharge, identifies more necessary consultations than typically requested, and results in earlier consultation. A proactive consultation model can reduce hospital LOS.Copyright © 2011 The Academy of Psychosomatic Medicine. Published by Elsevier Inc. All rights reserved.

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