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A complete right bundle-branch block masking Brugada syndrome
Makoto Tomita1, Hitoshi Kitazawa, Masahito Sato
1Tachikawa General Hospital, Cardiology, Nagaoka, Japan.
Journal of Electrocardiology
|July 27, 2012
Summary
Complete right bundle branch block (CRBBB) can mask Brugada syndrome. Transient normalization of CRBBB on ECG revealed ST elevation, suggesting a hidden cardiac condition.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Diagnostics
Background:
- Brugada syndrome is a genetic disorder that affects the heart's electrical system.
- Complete right bundle branch block (CRBBB) is a common ECG finding.
- Syncope can be a symptom of serious cardiac arrhythmias.
Observation:
- A 69-year-old male presented with syncope.
- Electrocardiogram (ECG) showed CRBBB.
- Transient normalization of CRBBB occurred, revealing coved ST elevation and a normal QRS complex.
Findings:
- The observed ECG changes suggest that CRBBB can obscure the characteristic ST elevation of Brugada syndrome.
- This case highlights a potential diagnostic challenge in identifying Brugada syndrome.
Implications:
- Recognizing this ECG pattern is crucial for accurate Brugada syndrome diagnosis.
- Further investigation may be warranted in patients with syncope and CRBBB showing transient ECG normalization.
- This finding may impact diagnostic criteria and management strategies for Brugada syndrome.
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