Brugada type 1 electrocardiographic pattern induced by severe hyponatremia

Area of Science:

• Cardiology
• Electrophysiology
• Internal Medicine

Background:

• Brugada syndrome is an inherited cardiac arrhythmia characterized by specific ECG abnormalities.
• The Brugada type 1 ECG pattern, marked by ST segment elevation in right precordial leads, indicates susceptibility to life-threatening ventricular arrhythmias.
• Various factors like drugs, fever, and electrolyte imbalances can unmask this pattern in affected individuals.

Observation:

• This report details a case where a patient presented with a Brugada type 1 ECG pattern.
• The ECG changes were observed in the context of severe hyponatremia, a significant electrolyte disturbance.
• The pattern was dynamic and potentially concealed, typical of Brugada syndrome presentations.

Findings:

• Severe hyponatremia was identified as the precipitating factor for the Brugada type 1 ECG pattern in this patient.
• This finding expands the known list of triggers for Brugada syndrome manifestations.
• The case underscores the importance of considering electrolyte abnormalities in the differential diagnosis of Brugada type 1 ECG.

Implications:

• Recognizing hyponatremia as a potential trigger is crucial for accurate diagnosis and management of Brugada syndrome.
• This case may prompt further research into the mechanisms linking electrolyte imbalances and cardiac sodium channel function.
• Clinicians should consider screening for electrolyte disturbances in patients presenting with unexplained Brugada type 1 ECG patterns.