HOLTER ĐIỆN TÂM ĐỒ – CHẨN ĐOÁN CHÍNH XÁC RỐI LOẠN NHỊP TIM TRONG 24 GIỜ
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What is Holter ECG?
Benefits of Holter ECG
Early detection of serious conditions
Who should consider Holter ECG?
Monitoring your heart for long-term health

HOLTER ECG – ACCURATE DETECTION OF HEART RHYTHM DISORDERS OVER 24–48 HOURS
In reality, many people experience a rapid heartbeat, palpitations, or a pounding sensation in the chest, yet no abnormalities are detected during medical examinations. Others may feel occasional dizziness or shortness of breath that quickly resolves on its own.
This happens because many cardiac arrhythmias occur only briefly and may not appear at the exact time of a routine check-up.
For this reason, conventional electrocardiograms (ECG) are sometimes insufficient to capture these transient abnormalities. That is where Holter ECG monitoring becomes an essential tool in modern cardiovascular diagnostics.
What is Holter ECG?
Holter ECG is a device that continuously records the heart’s electrical activity over a period of 24–48 hours. Patients can wear the device throughout their normal daily activities, including working, resting, and sleeping.
This allows doctors to monitor heart rhythms in real-life conditions, rather than just a few minutes during a standard ECG test.
Benefits of Holter ECG
With its compact and user-friendly design, Holter ECG provides significant clinical value:
- Accurately detects transient arrhythmias (tachycardia, bradycardia, premature beats, etc.)
- Correlates symptoms (palpitations, dizziness, etc.) with heart activity
- Monitors treatment effectiveness and supports timely medication adjustments
- Evaluates the function of pacemakers
Early detection of serious conditions
Continuous monitoring helps identify potentially dangerous cardiovascular conditions, including:
- Arrhythmias – which may lead to stroke or sudden fainting
- Myocardial infarction – can develop silently but is life-threatening
- Myocardial ischemia – affects blood supply to the heart
- Transient cardiac arrest – poses a serious risk to life
Who should consider Holter ECG?
This method is especially suitable for:
- Individuals with frequent palpitations or irregular heartbeats
- Those experiencing dizziness, fainting, or unexplained fatigue
- Patients suspected of arrhythmias not detected by standard ECG
- Individuals undergoing cardiovascular treatment requiring close monitoring
- People at high risk of heart disease
Monitoring your heart for long-term health
Holter ECG does more than record heart rhythms—it helps “listen” to early warning signs from your heart. This enables accurate diagnosis, timely intervention, and effective prevention of serious complications.
The Holter ECG service is routinely available at the General Internal Medicine Department of TNH Pho Yen Hospital, supporting accurate diagnosis and comprehensive cardiovascular care.
Contact Information:
TNH Hospital Group JSC
1900 8035
Hospital System:
- TNH Pho Yen Hospital – Thai Nguyen
- TNH Lang Son Hospital – Lang Son
- Thai Nguyen International Hospital – Thai Nguyen
- TNH Viet Yen Hospital – Bac Ninh







