egsys_syncope_score: EGSYS Score for Cardiac Syncope

In cliot: Clinical Indices and Outcomes Tools

EGSYS Score for Cardiac Syncope

Description

Calculates the EGSYS (Evaluation of Guidelines in Syncope Study) Score to stratify patients with syncope. This score helps differentiate between cardiac syncope (higher mortality risk) and neurally mediated/reflex syncope. A score of 3 or higher suggests a cardiac etiology.

Usage

egsys_syncope_score(palpitations, abnormal_ecg_or_heart_disease,
                    effort_syncope, supine_syncope, autonomic_prodrome,
                    predisposing_factors)

Arguments

palpitations	Numeric (0 or 1). Palpitations preceding the syncopal event. (1 = Yes, +4 points).
abnormal_ecg_or_heart_disease	Numeric (0 or 1). Abnormal ECG and/or history of structural heart disease. (1 = Yes, +3 points).
effort_syncope	Numeric (0 or 1). Syncope occurred during effort/exertion. (1 = Yes, +3 points).
supine_syncope	Numeric (0 or 1). Syncope occurred while supine. (1 = Yes, +2 points).
autonomic_prodrome	Numeric (0 or 1). Presence of autonomic prodrome (e.g., nausea, vomiting). (1 = Yes, -1 point).
predisposing_factors	Numeric (0 or 1). Presence of predisposing factors (e.g., warm crowded place, prolonged standing, fear/pain/emotion). (1 = Yes, -1 point).

Value

A list containing:

EGSYS_Score	The calculated total score (Range -2 to 12).
Interpretation	Risk stratification regarding cardiac vs. non-cardiac cause.
Likely_Etiology	"Likely Cardiac Syncope" (Score >= 3) or "Likely Neurally Mediated Syncope" (Score < 3).

References

Del Rosso A, Ungar A, Maggi R, et al. Clinical predictors of cardiac syncope at initial evaluation in patients referred urgently to a general hospital: the EGSYS Score. Heart. 2008;94(12):1620-1626. doi:10.1136/hrt.2008.143149

Examples

# Example 1: High Risk (Cardiac)
# Palpitations (+4), Heart Disease (+3), No prodrome
# Score = 7
egsys_syncope_score(1, 1, 0, 0, 0, 0)

# Example 2: Low Risk (Neurally Mediated)
# Warm crowded room (-1), Nausea (-1), No cardiac features
# Score = -2
egsys_syncope_score(0, 0, 0, 0, 1, 1)

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