Tachycardia (also known as Tachycardias, Tachyarrhythmia): Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.

NIH MeSH · D013610Diseases

Tachycardia

Also known asTachycardias · Tachyarrhythmia · Tachyarrhythmias

Definition

Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.

MeSH classification

  • C14.280.067.845
  • C14.280.123.875
  • C23.550.073.845

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Common questions about Tachycardia

What does Tachycardia mean in medicine?
Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Tachycardia known by any other names?
Yes. Tachycardia is also referred to as Tachycardias, Tachyarrhythmia, Tachyarrhythmias in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Tachycardia sit in the medical classification?
Tachycardia falls under the broader medical category "Diseases" in the MeSH hierarchy (tree numbers: C14.280.067.845, C14.280.123.875, C23.550.073.845). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Tachycardia?
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Source: NIH MeSH 2026 (D013610) — National Library of Medicine, public domain. View official MeSH record ↗