Simple risk stratification score for prognosis of syncope

Area of Science:

• Cardiology
• Emergency Medicine
• Clinical Risk Stratification

Background:

• Syncope is a common presentation in emergency departments, often requiring careful risk assessment.
• Predicting severe adverse events after syncope is crucial for patient management and resource allocation.

Purpose of the Study:

• To introduce and validate a novel, simple score for predicting severe adverse events in patients presenting with syncope.
• To assess the score's performance against existing risk stratification tools.

Main Methods:

• Prospective follow-up of 393 emergency department patients presenting with syncope.
• Development of a score based on previous syncope, abnormal electrocardiogram (ECG), and history of heart disease.
• Comparison of the new score's accuracy (c-statistic) with other established syncope scores.

Main Results:

• The new score demonstrated a c-statistic of 0.76, comparable to other literature scores.
• Patients with a score of 3/9 had a significantly increased hazard ratio (3.46) for death during follow-up.
• The score effectively identified patients with syncope secondary to cardiac causes.

Conclusions:

• The new syncope score is a simple and effective tool for identifying patients at increased risk of adverse outcomes, including death, post-syncope.
• Its ease of use, derived from history and ECG, makes it a practical addition to syncope evaluation.
• The score aids in risk stratification, complementing existing clinical judgment and diagnostic tools.