Premium Nahrungsergänzungsmittel | artgerecht

Tachycardia – Causes, Symptoms and Treatment

Tachycardia refers to a heart rate exceeding 100 beats per minute. It can be harmless or indicate an underlying medical condition requiring treatment.

Regular tips about health Regular tips about health

Things worth knowing about "Tachycardia"

Tachycardia refers to a heart rate exceeding 100 beats per minute. It can be harmless or indicate an underlying medical condition requiring treatment.

What is Tachycardia?

Tachycardia (from Greek tachys = fast and kardia = heart) is a condition in which the heart beats more than 100 times per minute at rest. The normal resting heart rate for adults is between 60 and 100 beats per minute. Tachycardia can be a temporary and benign response to physical activity, stress, or excitement, or it may signal an underlying health problem that requires medical attention.

Types of Tachycardia

Tachycardias are classified based on where in the heart they originate:

Sinus tachycardia: The natural pacemaker of the heart (sinus node) fires faster than normal, often in response to exercise, fever, anxiety, or medications.
Supraventricular tachycardia (SVT): Originates above the ventricles, in the atria or AV node. Often starts and stops suddenly.
Atrial fibrillation: Chaotic electrical signals in the atria cause a fast and irregular heartbeat.
Atrial flutter: A rapid but more organized electrical circuit in the atria.
Ventricular tachycardia (VT): Originates in the ventricles and can be life-threatening, requiring immediate treatment.
Ventricular fibrillation: The most severe form, in which the ventricles quiver uncontrollably and the heart can no longer pump blood effectively – a medical emergency.

Causes

Tachycardia can be triggered by a wide range of factors, including:

Physical exertion or exercise
Stress, anxiety, or emotional excitement
Fever or infection
Anemia (low red blood cell count)
Hyperthyroidism (overactive thyroid)
Heart disease (e.g., heart failure, heart attack, cardiomyopathy)
Electrolyte imbalances (e.g., low potassium levels)
Medications, caffeine, alcohol, or recreational drugs
Dehydration
Sleep deprivation or exhaustion

Symptoms

Not all cases of tachycardia cause noticeable symptoms. When symptoms do occur, they may include:

Heart palpitations or a racing heartbeat
Dizziness or lightheadedness
Shortness of breath
Chest pain or tightness
Fainting or loss of consciousness (syncope)
Weakness or fatigue
Feelings of anxiety

Seek emergency medical help immediately if you experience chest pain, fainting, or severe shortness of breath alongside a rapid heartbeat.

Diagnosis

Several tests are used to diagnose and classify tachycardia:

Electrocardiogram (ECG): Records the electrical activity of the heart and is the primary tool for identifying arrhythmias.
Holter monitor: A portable ECG device worn for 24–48 hours to detect intermittent episodes of tachycardia.
Event recorder: A wearable device that records heart rhythm when symptoms occur over an extended period.
Echocardiography: An ultrasound of the heart to assess its structure and function.
Blood tests: Evaluate thyroid function, electrolyte levels, and blood count.
Electrophysiology study (EPS): An invasive procedure to map the electrical pathways of the heart and locate the source of the arrhythmia.

Treatment

Treatment depends on the type, cause, and severity of the tachycardia:

General Measures

Treating the underlying cause (e.g., managing a thyroid condition or infection)
Avoiding triggers such as caffeine, alcohol, and stress
Vagal maneuvers (e.g., Valsalva maneuver) for certain types of SVT

Medications

Antiarrhythmic drugs: Used to restore normal heart rhythm (e.g., beta-blockers, calcium channel blockers, flecainide, amiodarone)
Anticoagulants: Blood thinners used in atrial fibrillation to reduce the risk of stroke

Procedures and Surgery

Cardioversion: Electrical shock applied to reset the heart to a normal rhythm
Catheter ablation: A minimally invasive procedure that destroys the tissue causing the abnormal electrical signals
Implantable cardioverter-defibrillator (ICD): A device implanted in the chest to detect and treat life-threatening ventricular tachycardia

When to See a Doctor

Occasional rapid heartbeat after exercise or stress is usually not a cause for concern. However, medical evaluation is recommended if:

episodes occur frequently or without an obvious trigger,
accompanying symptoms such as dizziness, fainting, or chest pain are present,
you have a known heart condition,
or episodes are prolonged.

References

European Society of Cardiology (ESC) – Guidelines for the management of patients with ventricular arrhythmias and the prevention of sudden cardiac death (2022). Available at: www.escardio.org
American Heart Association (AHA) – Tachycardia: Fast Heart Rate. Available at: www.heart.org
Zipes, D.P. et al. – Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 12th edition. Elsevier (2022).

Building Blocks for a Healthy Life

As an integrated manufacturer, we develop & produce evidence-based, patented, and non-patented formulations. We work exclusively with plant and natural extracts according to the strictest purity & quality standards.
The combination of science & modern technology with the laws of nature creates solutions consistently tailored to humans – for the highest good: health.

Most read entries

3 Posts in this encyclopedia category