edinburgh_gastric_ulcer_score: Edinburgh Gastric Ulcer Score (EGUS)

In cliot: Clinical Indices and Outcomes Tools

Edinburgh Gastric Ulcer Score (EGUS)

Description

Calculates the Edinburgh Gastric Ulcer Score (EGUS) to assess the risk of malignancy in patients with gastric ulcers and determine the need for repeat endoscopic surveillance. The score is derived from patient age, ulcer size, and ulcer location.

Usage

edinburgh_gastric_ulcer_score(age, ulcer_size_cm, ulcer_location)

Arguments

age	Numeric. Patient age in years. < 68: 0 points. 68-79: 1 point. >= 80: 2 points.
ulcer_size_cm	Numeric. Size of the ulcer in centimeters. < 1.25 cm: 0 points. 1.25 - 2.99 cm: 2 points. >= 3.00 cm: 3 points.
ulcer_location	String. Location of the ulcer: "antral" (0 points) or "non-antral" (1 point).

Value

A list containing:

EGUS_Score	The calculated risk score (Range 0-6).
Risk_Category	Classification (Low Risk: 0-2, High Risk: >=3).
Recommendation	Clinical guidance regarding the necessity of repeat endoscopy.

References

Grant RK, Brindle W, Cameron E, et al. Risk stratifying gastric ulcers: development and validation of a scoring system. Gut. 2021.

Examples

# Example 1: High Risk
# 70yo (+1), 2.0cm ulcer (+2), Non-antral (+1)
# Score = 4
edinburgh_gastric_ulcer_score(70, 2.0, "non-antral")

# Example 2: Low Risk
# 50yo (0), 0.5cm ulcer (0), Antral (0)
# Score = 0
edinburgh_gastric_ulcer_score(50, 0.5, "antral")

cliot documentation built on Dec. 1, 2025, 1:06 a.m.