Evaluation and outcome of patients with syncope

Area of Science:

• Cardiology
• Internal Medicine
• Clinical Diagnostics

Background:

• Syncope is a common clinical problem requiring effective diagnostic evaluation.
• Identifying the etiology of syncope is crucial for patient management and prognosis.

Purpose of the Study:

• To investigate the diagnostic evaluation and long-term outcomes of patients presenting with syncope.
• To determine the prognostic significance of syncope etiology, particularly cardiac causes.

Main Methods:

• Retrospective study of 433 patients with syncope.
• Analysis of diagnostic methods including history, physical examination, electrocardiogram (EKG), and prolonged monitoring.
• Long-term follow-up to assess mortality and recurrence rates.

Main Results:

• The etiology of syncope was not identified in 41% of patients.
• Initial history, physical examination, and EKG were primary diagnostic tools when a cause was found.
• Cardiac syncope was associated with significantly higher 5-year mortality (50.5%) and sudden death rates (33.1%) compared to noncardiac or unknown causes.
• Prolonged electrocardiographic monitoring yielded a specific cause in only 22% of patients.

Conclusions:

• A cardiac cause of syncope is an independent predictor of mortality and sudden death.
• Current diagnostic methods have limitations in identifying syncope etiology.
• Further research is needed to develop improved diagnostic techniques and intervention strategies for syncope patients.