Diseases

Ectopic Atrial Tachycardia

Abnormally rapid heartbeats originating from one or more automatic foci (nonsinus pacemakers) in the HEART ATRIUM but away from the SINOATRIAL NODE. Unlike the reentry mechanism, automatic tachycardia speeds up and slows down gradually. The episode is characterized by a HEART RATE between 135 to less than 200 beats per minute and lasting 30 seconds or longer.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Abnormally rapid heartbeats originating from one or more automatic foci (nonsinus pacemakers) in the HEART ATRIUM but away from the SINOATRIAL NODE. Unlike the reentry mechanism, automatic tachycardia speeds up and slows down gradually. The episode is characterized by a HEART RATE between 135 to less than 200 beats per minute and lasting 30 seconds or longer.

MeSH Record

Classification

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MeSH Record

Synonyms

11 entry terms
  • Atrial Ectopic Tachycardia
  • Tachycardia, Ectopic Atrial
  • Atrial Ectopic Tachycardias
  • Atrial Tachycardia, Ectopic
  • Atrial Tachycardias, Ectopic
  • Ectopic Atrial Tachycardias
  • Ectopic Tachycardia, Atrial
  • Ectopic Tachycardias, Atrial
  • Tachycardia, Atrial Ectopic
  • Tachycardias, Atrial Ectopic
  • Tachycardias, Ectopic Atrial

MeSH Record

Aspects Covered

35 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Record

History Note

91(87); was see under TACHYCARDIA, SUPRAVENTRICULAR 1987-90

MeSH Record

Previous Indexing

  • Heart Atrium (1966-1986)
  • Tachycardia (1966-1986)

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Ectopic Atrial Tachycardia. Medical Subject Headings (MeSH). 2026. Unique ID D013612. http://id.nlm.nih.gov/mesh/2026/D013612
  2. Ectopic Atrial Tachycardia. In: Wikidata. https://www.wikidata.org/wiki/Q54946755