Hospital Length of Stay With a Proactive Psychiatric Consultation Model in the Medical Intensive Care Unit: A Prospective Cohort Analysis

Determinants of long-term physical and mental health outcomes after intensive care admission for trauma survivors

INTRODUCTION

Collectively, studies from medical and surgical intensive care units (ICU) suggest that long-term outcomes are poor for patients who have spent significant time in an ICU. We sought to identify determinants of post-intensive care physical and mental health outcomes 6-12 months after injury.

METHODS

Adult trauma patients [ISS ≥9] admitted to one of three Level-1 trauma centers were interviewed 6-12 months post-injury to evaluate patient-reported outcomes. Patients requiring ICU admission ​≥ ​3 days ("ICU patients") were compared with those who did not require ICU admission ("non-ICU patients"). Multivariable regression models were built to identify factors associated with poor outcomes among ICU survivors.

RESULTS

2407 patients were followed [598 (25%) ICU and 1809 (75%) non-ICU patients]. Among ICU patients, 506 (85%) reported physical or mental health symptoms. Of them, 265 (52%) had physical symptoms only, 15 (3%) had mental symptoms only, and 226 (45%) had both physical and mental symptoms. In adjusted analyses, compared to non-ICU patients, ICU patients were more likely to have new limitations for ADLs (OR ​= ​1.57; 95% CI ​= ​1.21, 2.03), and worse SF-12 mental (mean Δ ​= ​-1.43; 95% CI ​= ​-2.79, -0.09) and physical scores (mean Δ ​= ​-2.61; 95% CI ​= ​-3.93, -1.28). Age, female sex, Black race, lower education level, polytrauma, ventilator use, history of psychiatric illness, and delirium during ICU stay were associated with poor outcomes in the ICU-admitted group.

CONCLUSIONS

Physical impairment and mental health symptoms following ICU stay are highly prevalent among injury survivors. Modifiable ICU-specific factors such as early liberation from ventilator support and prevention of delirium are potential targets for intervention.

The impact of rounds with a psychiatry team in the intensive care unit: A prospective observational pilot study evaluating the effects on delirium incidence and outcomes

BACKGROUND

Delirium in the intensive care unit (ICU) is a common but serious condition that has been associated with in-hospital mortality and post-discharge psychological dysfunction. The aim of this before and after study is to determine the effect of a multidisciplinary care model entailing daily ICU rounds with a psychiatrist on the incidence of delirium and clinical outcomes.

OBJECTIVE

To assess the impact of a proactive psychiatry consultation model in the surgical ICU on the incidence and duration of delirium.

METHODS

This was a prospective, single institution, observational controlled cohort pilot study of adult patients admitted to a surgical ICU. A control group that received standard of care (SOC) with daily delirium prevention care bundles in the pre-intervention period was compared to an intervention group, which had a psychiatrist participate in daily ICU rounds (post-intervention period). The primary outcome was delirium incidence. The secondary outcomes were: delirium duration, ventilator days, hospital and ICU length of stay, and in-hospital mortality.

RESULTS

A total of 104 patients were enrolled and equally split between SOC and intervention groups; 95 contributed to analysis. The overall incidence of ICU delirium was 19%. SOC and intervention groups had similar rates of delirium (21% vs 18%, p = 0.72). None of the secondary outcomes statistically significantly differed between the two groups.

CONCLUSION

Delirium in ICU patients is a potentially preventable condition with serious sequelae. There was no difference in delirium incidence or duration between patients receiving SOC or patients who had multidisciplinary rounds with a psychiatrist.

An Economic Evaluation of a Proactive Consultation-Liaison Psychiatry Pilot as Compared to Usual Psychiatric Consultation On-Demand for Hospital Medicine

BACKGROUND

A growing literature demonstrates the value of the Proactive Consultation-Liaison (C-L) Psychiatry model for healthcare systems through reductions in hospital length of stay (LOS). Few studies include financial outcomes. We evaluated the return on investment (ROI) of a one-year Proactive C-L Psychiatry pilot on a hospital medicine unit.

METHODS

We used a pre-post method with an active comparison of three hospital medicine units with regular psychiatric consultation on-demand. We staffed the Pilot unit with one full-time psychiatrist who focused on early case finding, close communication with unit staff, frequent follow-up visits, and proactive discharge planning. We assessed the one-year change in mean LOS for all patients receiving psychiatric consultation, from which we estimated the direct contribution margin (DCM) from bed backfills and the program's return on investment (ROI).

RESULTS

On the Pilot unit, the percent of discharges that received psychiatric consultation increased from 7.34% to 13.79%, and the LOS for patients consulted on declined by a mean of 1.82 days (P<0.05), as compared to an increase of 0.15 days (P>0.05) on the usual care units. The Pilot unit reduction in LOS saved 451.71 days total, allowing for 73.81 bed-backfills, a DCM of $419,343 (95% confidence interval, $50,754 to $787,933), a net DCM of $298,245 (-$70,344 to $666,835) and ROI of 132% (-31% to 295%).

CONCLUSION

This study strengthens existing evidence for the relative cost-effectiveness of Proactive Consultation-Liaison (C-L) Psychiatry for hospital medicine compared to usual psychiatric consultation on-demand.

Proactive Consultation-Liaison Psychiatry: American Psychiatric Association Resource Document

In 2019, the American Psychiatric Association Council on Consultation-Liaison (C-L) Psychiatry convened a work group to develop a resource document on proactive C-L psychiatry. A draft of this document was reviewed by the Council in July 2020, and a revised version was approved by this Council in September 2020. The accepted version was subsequently reviewed by the American Psychiatric Association Council on Health Care Systems and Financing in November 2020. The final version was approved by the Joint Reference Committee on November 24, 2020, and received approval for publication by the Board of Trustees on December 12, 2020. This resource document describes the historical context and modern trends that have given rise to the model of proactive C-L psychiatry. Styled as an inpatient corollary to outpatient collaborative care models, proactive C-L provides a framework of mental health care delivery in the general hospital designed to enhance mental health services to a broad range of patients. Its 4 elements include systematic screening for active mental health concerns, proactive interventions tailored to individual patients, team-based care delivery, and care integration with primary teams and services. Studies have found that proactive C-L psychiatry is associated with reduced hospital length of stay, enhanced psychiatric service utilization, reduced time to psychiatric consultation, and improved provider and nurse satisfaction. These favorable results encourage further studies that replicate and build upon these findings. Additional outcomes such as patient experience, health outcomes, and readmission rates deserve investigation. Further studies are also needed to examine a broader array of team compositions and the potential value of proactive C-L psychiatry to different hospital settings such as community hospitals, surgery, and critical care.

Feasibility of a Behavioral Intervention to Reduce Psychological Distress in Mechanically Ventilated Patients

Many survivors of acute respiratory failure suffer from mood disorders following discharge from the hospital. We investigated the feasibility of intensivists delivering psychological support based on positive suggestion (PSBPS) to 20 intubated patients to reduce their psychological distress. Thirteen patients completed follow-up surveys. Of those, 9 remembered the intensive care unit physician talking to them, and 7 described it as comforting. Five patients (38%) met criteria for anxiety, depression, and acute stress. In comparison to historical controls, intervention may be associated with lower estimated odds of anxiety. PSBPS can be performed with patients in parallel with medical treatment to potentially reduce psychological morbidity and to humanize critical care. A larger randomized study is warranted to assess the efficacy of PSBPS.

A systematic review of proactive psychiatric consultation on hospital length of stay

OBJECTIVE

Roughly half of general hospital patients may have a psychiatric issue that impacts care, yet most of these are not recognized during hospital admission. Proactive mental health screening offers an opportunity for timely identification and clinical attention to improve outcomes.

METHOD

We conducted a PRISMA systematic review of Pubmed, Embase, PsycINFO, and Cochrane Library for proactive models of psychiatric consultation to reduce hospital length of stay (LOS) in adult inpatients. For each study, we evaluated the level of evidence and defined the study sample, means of group allocation, screening process, interventions, and outcomes.

RESULTS

Of the 12 included studies, the 8 whose screening was informed by clinicians with mental health care expertise or whose providers were integrated with primary services reported a reduction in LOS. Two of these also reported favorable cost-benefit analyses. All positive studies represent versions of either psychiatrists embedded within medical or surgical settings or a multidisciplinary team-based model.

CONCLUSIONS

Proactive CL psychiatry with clinically-informed screening and integrated care delivery appear to reduce LOS. Further studies are needed to explore a broader range of outcomes, hospital populations beyond hospital medicine, and additional benefits of proactive integrated mental health care in the general hospital.