cliot (version 1.0.0)

edinburgh_gastric_ulcer_score: 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)

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.

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).

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")