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In-Depth

Heart arrhythmias

Symptoms

  • Vasovagal syncope Vasovagal syncope — Comprehensive overview covers symptoms, treatment of sudden, brief loss of consciousness.
  • Symptom Checker Use this Symptom Checker to pinpoint possible causes of your medical symptoms.

Tests and diagnosis

  • Stress test A stress test — Overview covers what to expect and results of this heart test.
  • Holter monitor Holter monitor — Overview covers what to expect during this test of your heart rhythm.
  • Electrocardiogram (ECG or EKG) Electrocardiogram (ECG or EKG) — Overview covers definition of this test to monitor your heartbeat.
  • Tilt table test Tilt table test — Overview covers definition, what to expect and results of this test.

Causes

  • Hyperthyroidism (overactive thyroid) Hyperthyroidism — Comprehensive overview covers symptoms, causes, treatment of an overactive thyroid gland.
  • Long QT syndrome Long QT syndrome — Comprehensive overview covers causes and treatment of this racing heart condition.

Treatments and drugs

  • Cardioversion Cardioversion — Overview covers what to expect during this procedure to reset your heart's rhythm.
  • Cardiac ablation Cardiac ablation — Overview covers risks, results of this surgery to correct heart rhythm problems.
  • Implantable cardioverter-defibrillators (ICDs) Implantable cardioverter-defibrillators (ICDs) — Overview covers the definition and risks of implanting these devices.
  • Pacemaker Pacemaker — Overview covers risks, results of the procedure to install this heartbeat-regulating device.

Prevention

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