University of Wisconsin–Madison Medical College of Wisconsin

Improving Geographical Cohorting of Patients Admitted Under Hospitalist Service

Precious Anyanwu, BS; Kavita Naik, MD; Sanjay Bhandari, MD, MS; Pinky Jha, MD, MPH; Barbara Slawski, MD, MS

WMJ. 2024;123(3):155.

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Hospitalized patients frequently are assigned to specific inpatient wards to improve patient outcomes, a practice known as geographical cohorting or localization.1 In situations where the hospital beds allocated to hospitalist teams reach capacity, it may become necessary to place patients in inpatient units that typically are not reserved for hospitalists. To mitigate this, hospitalist groups often implement cohorting programs aimed at consolidating care within specific units or reducing the number of units visited by each hospitalist daily. Previous research has shown that localization positively affects hospitalists’ workflow, quality of patient care, and productivity, albeit with some challenges.2,3 We evaluated the effectiveness of a protocol in minimizing patient dispersion and improving quality of care indicators at an academic medical center in Southeast Wisconsin.

This study was conducted from June 2022 through July 2023 at a 711- bed academic medical center with 578 medical/surgical beds. The hospitalist teams had an average daily census of 255 patients throughout the study. Out of the total hospital beds allocated for non-critical care services spread across 21 units, hospitalist teams were assigned 152 beds in 6 units. This resulted in a gap of 103 medicine patient beds and a considerable patient dispersion. To address these issues, an updated localization protocol was implemented in January 2023.

The updated protocol included assessing bed capacity in each assigned medicine unit and the average census managed by the hospitalist teams. To manage high patient volumes, reassignments were made for home teams and their primary units, which determined the allocation and census of overflow patients. Further, home teams were assigned secondary units to effectively manage the overflow. While these secondary units usually do not have beds specifically assigned for medicine patients, they were utilized to accommodate a high number of overflow patients from the medicine teams.

The primary measured outcome was dispersion, defined as the number of different units in which hospitalists had patients. Secondary outcomes included length of stay index (LOS-I), mortality index, 72-hour readmissions, patient satisfaction scores, and care coordination rounds (CCR) attendance. We also conducted a survey to capture feedback from hospitalists. A t test was used for comparison of outcomes before and after the implementation of the protocol. We found that dispersion decreased after protocol implementation, with average dispersion preimplementation of 7.33 units visited daily and postimplementation of 6.51 units (a net difference of 0.82, P = 0.005) (See Table in full-text pdf). While LOS-I also decreased, there were no differences in mortality index, 72-hour readmissions, patient satisfaction, or CCR attendance. Our survey findings showed 39% of hospitalists responded, with the majority reporting either improvements or no change in workflow and satisfaction.

Our study showed that a protocol to enhance hospitalist localization without adding newly assigned beds was effective at reducing dispersion. The overall impact was small but statistically significant. This was additionally associated with a reduction in LOS-I, although causation cannot be established. Other metrics, including CCR attendance, mortality, readmissions, and patient satisfaction were not affected. Subjective assessment by hospitalist team members was either positive or neutral. It is possible that with larger reductions in dispersion, these measures may be affected more significantly, so further research is warranted.

REFERENCES
  1. Kara A, Flanagan ME, Gruber R, et al. A time motion study evaluating the impact of geographic cohorting of hospitalists. J Hosp Med. 2020 Jun;15(6):338-344. doi:10.12788/jhm.3339.
  2. Singh S, Fletcher KE. A qualitative evaluation of geographical localization of hospitalists: how unintended consequences may impact quality. J Gen Intern Med. 2014;29(7):1009-1016. doi:10.1007/s11606-014-2780-6.
  3. Singh S, Tarima S, Rana V, Marks DS, Conti M, Idstein K, Biblo LA, Fletcher KE. Impact of localizing general medical teams to a single nursing unit. J Hosp Med. 2012;7(7):551-556. doi:10.1002/jhm.1948.

Author Affiliations: Medical College of Wisconsin (MCW), Milwaukee, Wisconsin (Anyanwu); Division of General Internal Medicine, MCW, Milwaukee, Wisconsin (Naik, Bhandari, Jha, Slawski).
Corresponding Author: Pinky Jha, MD, MPH, Section of Hospital Medicine, Division of General Internal Medicine, Medical College of Wisconsin HUB for Collaborative Medicine, 7th Floor, 8701 W Watertown Plank Rd, Milwaukee, WI 53226; email pjha@mcw.edu; ORCID ID 0000-0002-7893-188X
Financial Disclosures: None declared.
Funding/Support: None declared.
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