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Evaluation of the current prognostic role of cardiogenic syncope
Filippo Numeroso1, Gianluigi Mossini, Giuseppe Lippi
1Emergency Department, University Hospital of Parma, Via Gramsci 14, 43126, Parma, Italy. fnumeroso@ao.pr.it
Insights
Cardiogenic syncope, originating from heart conditions, leads to worse outcomes and higher mortality compared to non-cardiogenic syncope. This study confirms cardiogenic syncope indicates a poorer prognosis.
Area of Science:
- Cardiology
- Internal Medicine
Background:
- Previous studies suggest higher mortality in cardiogenic syncope.
- Concerns exist that underlying heart disease, not syncope itself, predicts mortality risk.
- The prognostic value of syncope type requires further investigation.
Purpose of the Study:
- To prospectively compare the prognosis of cardiogenic versus non-cardiogenic syncope.
- To evaluate short-term and long-term adverse events in syncopal patients.
- To determine if syncope type influences patient outcomes.
Main Methods:
- Prospective cohort study of 200 syncopal patients.
- Patients admitted to the Emergency Department Observation Unit.
- Comparison of outcomes at 1 month and 1 year post-discharge.
Main Results:
- Cardiogenic syncope was linked to adverse events at both short and long term.
- Patients with cardiogenic syncope experienced higher rates of recurrence, procedures, cardiovascular events, and death.
- Despite advances in cardiovascular disease treatment, cardiogenic syncope prognosis remains poor.
Conclusions:
- Cardiogenic syncope is associated with a significantly worse prognosis compared to non-cardiogenic syncope.
- The findings underscore the importance of identifying the cause of syncope for risk stratification.
- Early identification and management of cardiogenic syncope are crucial for improving patient outcomes.
Abstract:
Prior studies about the prognosis of syncopal patients shows that the 1-year mortality is consistently higher in cardiogenic than in non-cardiogenic or unexplained syncope. After 10 years, other studies have raised several concerns about this circumstantial evidence, showing that the risk of death is predicted by only the underlying heart disease and not from the syncope itself. This is a prospective cohort study aimed to compare the prognosis of cardiogenic and non-cardiogenic syncope. We studied 200 syncopal patients consecutively admitted to the Emergency Department Observation Unit of the University Hospital of Parma. At 1 month and 1 year after discharge, we compared the incidence of syncopal recurrences, major procedures, cardiovascular events and death for any reason in patients with cardiogenic versus non-cardiogenic syncope. Cardiogenic syncope was associated with the presence of at least one adverse event at short and long term. Despite the significant advances in the treatment of cardiovascular diseases over the past decades, cardiogenic syncope continues to be associated with a significantly worse prognosis when compared with non-cardiogenic syncope.
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