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What causes bradycardia?

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The abnormal rhythm can show up after a heart attack or as a side effect of heart surgery. Other things that can lead to it:

  • Certain medications, such as those to treat high blood pressure and other arrhythmias, or abnormal heartbeats
  • A congenital defect, or problem you’re born with
  • Thyroid disease, an imbalance of hormones in the body
  • Obstructive sleep apnea , when your breathing pauses many times throughout the night

From: What is Bradycardia? WebMD Medical Reference

SOURCES:

Heart Rhythm Society, “Slow Heartbeat.”

American College of Cardiology: “Bradycardia (Slow Heart Rate).”

Cleveland Clinic, “Abnormal Heart Rhythms.”

Mayo Clinic: “Bradycardia: Definition,” “Bradycardia: Symptoms,” “Bradycardia: Risk Factors,” “Bradycardia: Causes.”

Johns Hopkins Medicine, “Bradycardia.”

Reviewed by James Beckerman on August 01, 2018

SOURCES:

Heart Rhythm Society, “Slow Heartbeat.”

American College of Cardiology: “Bradycardia (Slow Heart Rate).”

Cleveland Clinic, “Abnormal Heart Rhythms.”

Mayo Clinic: “Bradycardia: Definition,” “Bradycardia: Symptoms,” “Bradycardia: Risk Factors,” “Bradycardia: Causes.”

Johns Hopkins Medicine, “Bradycardia.”

Reviewed by James Beckerman on August 01, 2018

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What tests are done to diagnose bradycardia?

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