Atrial Flutter (also known as Atrial Flutters, Flutter, Atrial): Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which

NIH MeSH · D001282Diseases

Atrial Flutter

Also known asAtrial Flutters · Flutter, Atrial · Flutters, Atrial · Auricular Flutter · Auricular Flutters · Flutter, Auricular · Flutters, Auricular

Definition

Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).

MeSH classification

  • C14.280.067.248
  • C23.550.073.248

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Common questions about Atrial Flutter

What does Atrial Flutter mean in medicine?
Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES). 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 Atrial Flutter known by any other names?
Yes. Atrial Flutter is also referred to as Atrial Flutters, Flutter, Atrial, Flutters, Atrial, Auricular Flutter 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 Atrial Flutter sit in the medical classification?
Atrial Flutter falls under the broader medical category "Diseases" in the MeSH hierarchy (tree numbers: C14.280.067.248, C23.550.073.248). 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 Atrial Flutter?
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Source: NIH MeSH 2026 (D001282) — National Library of Medicine, public domain. View official MeSH record ↗