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Cardiac24 hrs – 3 yrs

Ambulatory Electrocardiogram

A portable ECG device worn over 24 hours or longer to record your heart's rhythm as you go about your daily routine.

Ambulatory ECG monitoring provides continuous heart rhythm recording during normal daily activities to detect arrhythmias that a standard resting ECG cannot capture. Monitoring periods range from 24 hours to 3 years depending on the device.

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Patient wearing a portable Holter monitor for ambulatory ECG recording

A wearable monitor continuously records your heart rhythm during normal activities, capturing irregular beats that a standard ECG might miss.

Device Options

  • 24–48 hour Holter monitor — standard continuous recording
  • 7–14 day extended Holter — patch-based, water-resistant
  • 30-day event recorder — patient-activated for symptom capture
  • Implantable loop recorder — subcutaneous device lasting up to 3 years for rare episodes

What It Detects

  • Paroxysmal atrial fibrillation
  • Supraventricular and ventricular tachycardia
  • Bradyarrhythmias and pauses
  • Heart rate variability
  • Rhythm-symptom correlation: linking ECG findings to patient-reported symptoms

How It's Performed

Chest electrodes connect to a portable recorder worn at the waist. Patients maintain normal activities while keeping a symptom diary. Traditional Holter monitors must be kept dry; patch-based alternatives are water-resistant and more discreet.

What Results Mean

Analysis determines arrhythmia episodes, AF burden (percentage of monitoring time in atrial fibrillation), conduction abnormalities, and symptom correlation — guiding decisions about anticoagulation, antiarrhythmic therapy, or catheter ablation.

Who Should Get It

  • Daily or recurring palpitations
  • Unexplained dizziness or syncope
  • Suspected paroxysmal atrial fibrillation
  • Post-ablation monitoring to confirm rhythm control

Ready to Schedule Your Ambulatory Electrocardiogram?

Most evaluations are available on the same day as your consultation with Dr. Peter Chang at Paragon Medical Centre, Singapore.