Holter monitor

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A Holter monitor is a small machine worn for a day or more to continuously record the heart's electrical activity of the heart.

Holter monitor
Holter monitor

Indications[edit]

Holter monitors are used to help diagnose heart rhythm problems or arrhythmias. It can show racing heartbeats, slow heartbeats, skipping heartbeats, fluttering heartbeats (palpitations), and fainting.

How does it work?[edit]

  • When you get a Holter monitor, your healthcare provider puts small, sticky pads (electrodes) on your chest.
  • These connect to the monitor.
  • The monitor attaches to a belt or shoulder strap.
  • You need to keep the device on for at least 24 to 48 hours.

Tips while using Holter monitor[edit]

  • Try to sleep on your back.
  • Don’t take a shower but a sponge bath is acceptable.
  • Follow your normal routine.
Holter monitor
Holter monitor
  • If an electrode falls off or the unit makes noise, call your doctor

While wearing the device, avoid:

  • Electric blankets
  • High-voltage areas
  • Magnets
  • Metal detectors
The picture shows a Holter monitor with leads and body strap
The picture shows a Holter monitor with leads and body strap

Gallery[edit]

Call your doctor when[edit]

If you experience any symptoms such as:

  • Dizziness or lightheadedness
  • Chest pain
  • Shortness of breath
  • Strong fluttering heartbeats

Heart rhythms recorder by Holter[edit]

  • Atrial fibrillation or flutter
  • Multifocal atrial tachycardia
  • Paroxysmal supraventricular tachycardia
  • Slow heart rate (bradycardia)
  • Ventricular tachycardia

Normal Holter monitor results[edit]

Normal variations in heart rate occur with activities. A normal Holter monitor result shows no significant changes in heart rhythms or pattern.

Abnormal results[edit]

Abnormal results may include various arrhythmias such as those listed above. Some changes may mean that the heart is not getting enough oxygen.

Risks of Holter monitor[edit]

Other than the uncommon skin reaction, there are no risks associated with the test. However, you should be sure not to let the monitor get wet.

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Tests and procedures involving the heart
Surgery
Heart valves
and septa
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production of septal defect in heart


enlargement of existing septal defect
Atrial septostomy
Balloon septostomy
creation of septal defect in heart
Blalock–Hanlon procedure
shunt from heart chamber to blood vessel


atrium to pulmonary artery
Fontan procedure
left ventricle to aorta
Rastelli procedure
right ventricle to pulmonary artery
Sano shunt
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for transposition of the great vessels
Arterial switch operation
Mustard procedure
Senning procedure
for univentricular defect
Norwood procedure
Kawashima procedure
shunt from blood vessel to blood vessel


systemic circulation to pulmonary artery shunt
Blalock–Taussig shunt
SVC to the right PA
Glenn procedure
Cardiac vessels
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