Arrhythmias are irregular heartbeats that can occur when the electrical impulses that coordinate your heartbeats are not functioning properly. This can cause the heart to beat too fast (tachycardia), too slow (bradycardia), or erratically. Arrhythmias can be harmless or life-threatening, depending on their type and severity.
Coronary artery disease: Narrowing of the arteries can lead to inadequate blood flow to the heart, triggering arrhythmias.
Heart attack: This can damage heart tissue, affecting electrical impulses.
Heart failure or cardiomyopathy: Weakening of the heart muscle can disrupt its electrical system.
Valvular heart disease: Issues with heart valves can lead to arrhythmias.
Excessive alcohol or caffeine: These can overstimulate the heart.
Smoking: Can lead to structural and functional changes in the heart.
Drug abuse: Certain recreational drugs (e.g., cocaine, amphetamines) can provoke arrhythmias.
Hypertension (high blood pressure): Can strain the heart and contribute to arrhythmias.
Diabetes: Can damage blood vessels and the heart’s electrical pathways.
Electrolyte imbalances: Low or high levels of potassium, magnesium, calcium, or sodium can affect the heart’s rhythm.
Symptoms of arrhythmias can vary, depending on the type and severity, and may include: