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Bradycardia related to hypoglycaemia

Sergio Navarro-Gutiérrez1, Félix González-Martínez, Maria Teresa Fernández-Pérez

  • 1Department of Emergency Medicine, Hospital Virgen de la Luz, Cuenca, Spain. sergionavarrog@hotmail.com

Insights

Hypoglycemia, or low blood glucose, can cause temporary atrial fibrillation, a type of irregular heartbeat. This condition can resolve with proper treatment, highlighting the importance of monitoring glucose levels during cardiac events.

Area of Science:

  • Cardiology
  • Endocrinology
  • Internal Medicine

Background:

  • Blood glucose level fluctuations are recognized contributors to electrocardiogram (ECG) abnormalities.
  • Arrhythmias, including atrial fibrillation, have been linked to metabolic disturbances.

Observation:

  • An 81-year-old female patient experienced transient atrial fibrillation during treatment for hypoglycemia.
  • The patient was receiving intravenous dextrose infusion for low blood glucose levels.

Findings:

  • The patient's atrial fibrillation resolved, and a normal sinus rhythm was restored after glucose level management.
  • This case illustrates a direct correlation between hypoglycemia and the occurrence of transient atrial fibrillation.

Implications:

  • Clinicians should consider hypoglycemia as a potential cause of new-onset or transient atrial fibrillation.
  • Monitoring blood glucose levels is crucial in patients presenting with unexplained arrhythmias, particularly those with or at risk for metabolic disturbances.

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