Preoperative Frailty Assessment

Frailty on FHIR

mFI-5 and VQI-11 frailty indices, computed from data already in the patient’s chart

A SMART on FHIR app for Epic Hyperspace

Frailty predicts surgical outcomes. Scoring it by hand, chart by chart, is why it so rarely gets done.

Frailty on FHIR launches from a patient’s chart in Epic Hyperspace. It reads the problem list, encounter diagnoses, vital signs, and functional-status assessments that are already in the record, computes two validated preoperative frailty indices, and shows the clinician each contributing item with the evidence that triggered it.

It is read-only and stores no clinical data. The two items coded data rarely captures, functional dependence and non-home residence, are pre-filled from whatever evidence exists and then confirmed by the clinician rather than silently defaulted. If the app is unavailable, care proceeds exactly as it would have.

It was built by Brandon Gaston, MD, a vascular surgery resident at Massachusetts General Hospital, alongside research directly comparing frailty scores and their association with outcomes after lower-extremity revascularization.

Launch
EHR launch, SMART v1
Standard
FHIR R4
Access
Read-only
Stored
No clinical data
mFI-5
Modified Frailty Index · 5 items
2 / 5
  • Diabetes mellitus
  • Hypertension
  • Congestive heart failure
  • COPD
  • Functional dependence
VQI-11
Vascular Quality Initiative · 11 items
4 / 11
  • Diabetes mellitus
  • Hypertension
  • Coronary artery disease
  • Peripheral vascular disease
  • + 7 further items
The score cards as rendered in the chart. Illustrative values, not a real patient.

Epic organizations can request Frailty on FHIR directly through Epic Vendor Services. Submitting the request starts the integration process with your organization.

  1. Open the Download page on Epic Vendor Services.
  2. Search for the Frailty on FHIR client ID.
  3. Request the app to begin the integration.
Client ID
edec30f4-a47c-46de-86f0-16abf8d333af

Search for this ID on the Download page.

For integration questions, documentation requests, or research collaboration.

Security reports Can be requested by emailing bgaston@mgh.harvard.edu