How UMass Memorial Health Increased Throughput and Capacity By 33% for Low-Acuity ED Patients

Hospital improved rapid flow capacity from 45 to 60 patients/day.

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UMass Memorial Health Case Study
Ken Shanahan

Prior to KATE, we had a bigger problem with over-triaging than under-triaging. Now that we are correctly triaging these patients, we have increased the number of patients we are able to see through our Rapid Flow Area.

Ken Shanahan
Senior Director of Emergency Medicine, UMass Memorial Health

UMass Memorial Health At A Glance

138,200
Annual ED Visits
781
Licensed Beds
Epic
EHR System
Level 1
Academic Medical Center & Trauma Center
The Challenge

Throughput Plateaued Despite Operational Investments

Seeking to improve throughput at their Level 1 trauma center, UMass Memorial Health aimed to drive higher patient volumes through their Rapid Flow Area to support broader efficiency initiatives. However, the unit remained plateaued at 40 to 45 patients per day. The primary obstacle was a persistent bottleneck in identification; subjective triage led to over-triaging, inadvertently routing eligible low-acuity cases to main ED beds rather than the fast-track area. This misalignment stalled the facility’s ability to fully realize the throughput potential of their operational investments.

40–45
Patients Per Day
Rapid Flow Plateau
Over-Triage
Routing Low-Acuity to
Main ED Beds
Stalled
Throughput Potential
Despite Investments
The Solution

KATE AI: Unlocking Hidden Capacity at the Point of Entry

To accelerate their throughput and capacity initiative, hospital leadership implemented KATE AI to improve acuity assignments objectively at the point of entry. KATE identifies low-acuity patients suitable for fast-track pathways who might otherwise be routed to the main ED. This capability allowed the ED to unlock hidden capacity by accurately shifting volume to the Rapid Flow Area, ensuring that available resources were utilized to their maximum potential without additional headcount or workflow disruption.

  • Objective acuity assignment at point of entry
  • Low-acuity patient identification for fast-track
  • Accurate volume shifting to Rapid Flow Area
  • No additional headcount required
  • Seamless workflow integration

Measurable Results

Significant improvements across throughput, capacity, and operational efficiency.

Increase in Throughput Capacity
33%
Daily Rapid Flow volume increased from 40–45 to 55–60 patients per day
Additional Patients Per Day
15
Expanded capacity in the fast track area without additional headcount
Accelerated Existing Initiatives
Validated
KATE acted as an accelerant to maximize operational baseline investments

Unlocking Hidden Capacity in the Emergency Department

After implementing KATE Triage in February 2023, the medical center successfully increased daily Rapid Flow volume from 40–45 to 55–60 patients per day, achieving a 33% increase in throughput capacity.

Operationally, this shift demonstrates how KATE acted as an accelerant to existing initiatives, ensuring the hospital could make good use of its existing space by correctly triaging patients previously routed to the main ED.

Prior to KATE, we had a bigger problem with over-triaging than under-triaging. Now that we are correctly triaging these patients, we have increased the number of patients we are able to see through our Rapid Flow Area.

Ken Shanahan
Senior Director of Emergency Medicine, UMass Memorial Health

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UMass Memorial Health

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