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Earliest electrocardiogram is golden for the diagnosis of Brugada syndrome
Omer Faruk Celik1, Haldun Akoglu, Serkan Eroglu
1Marmara University Pendik Education and Research Hospital, Department of Emergency Medicine, Istanbul, Turkey.
Insights
Brugada syndrome, a cause of sudden cardiac death, presents with specific ECG changes. Early electrocardiograms (ECGs) are crucial for diagnosis, even if subsequent tests are normal.
Area of Science:
- Cardiology
- Clinical Electrophysiology
Background:
- Cardiac syncope, a potential warning of sudden cardiac death, can stem from structural or dysrhythmogenic causes.
- Brugada syndrome is a key cause of dysrhythmic sudden cardiac death in young adults with structurally normal hearts.
Observation:
- A 23-year-old male presented with syncope, revealing a family history of premature sudden death.
- Initial electrocardiogram (ECG) showed a transient type 2 repolarization variant, indicative of Brugada syndrome.
- Subsequent ECGs normalized, highlighting the diagnostic challenge of intermittent Brugada syndrome patterns.
Findings:
- The earliest ECG was pivotal in diagnosing Brugada syndrome, despite its transient nature.
- The patient's ECG pattern reverted to normal shortly after the initial presentation.
- No further diagnostic ECG abnormalities were observed during follow-up.
Implications:
- Emphasizes the critical importance of retaining and meticulously reviewing initial ECGs in syncope evaluations.
- Highlights the diagnostic value of early ECGs for identifying conditions like Brugada syndrome, even with transient findings.
- Suggests the need for physician expertise in interpreting subtle or evolving ECG patterns for accurate syncope diagnosis.
Abstract:
Cardiac syncope can be classified as being either structural or dysrhythmogenic in origin, and it may be the only warning symptom of sudden cardiac death. One of the causes of dysrhythmic sudden cardiac death in young adults with structurally normal hearts is Brugada syndrome. Electrocardiogram (ECG) of Brugada syndrome is characterized by an ST-segment elevation in the right precordial leads. A 23-year-old man was presented to our emergency department (ED) with a history of syncope which has occurred 30 minutes before arrival and lasted for 10 minutes. Both physical and neurological examinations were unremarkable. Family history revealed coronary artery disease of his father and sudden death at 45. Initial ECG performed 3 minutes after his arrival showed a type 2 repolarization variant of Brugada syndrome. This pattern was reverted back to normal 5 minutes later and never showed up again on his future ECGs. In our case, it was only the earliest ECG that made the diagnosis possible since all future ECGs showed a perfectly normal pattern throughout the follow-up period. In all syncope patients, initial ECGs should be kept and filed to be reviewed again in case the primary physician is not competent enough for the evaluation of ECG.
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