CLINICAL DIAGNOSTIC MANUAL
Bradycardia, defined as a heart rate below 60 beats per minute (bpm), can be a challenging clinical phenomenon, with various causes potentially at play. Understanding these causes is crucial for accurate diagnosis and effective management. Below, we explore some of the most common causes of bradycardia and how to identify them.
Cause | Symptoms and Signs | Diagnostic Tests |
|---|---|---|
Athlete’s Heart | Heart adaptation to training | Minimal symptoms, physiological bradycardia |
Medications | Side effects of certain medications | Fatigue, dizziness, syncope |
Sinoatrial Node Disease | Sinus node dysfunction | Dizziness, weakness, syncope |
Ventricular or Supraventricular Bigeminy | Arrhythmias such as bigeminy | Palpitations, dizziness |
Acute Myocardial Infarction | Acute myocardial infarction | Chest pain, fatigue, sweating |
Hypothyroidism | Decreased thyroid function | Fatigue, cold intolerance |
Hypothermia | Decrease in body temperature | Confusion, shivering, cold skin |
Severe Electrolyte Imbalances | Electrolyte disturbances, especially low potassium levels | Muscle weakness, palpitations |
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