extrasystole$27004$ - определение. Что такое extrasystole$27004$
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Что (кто) такое extrasystole$27004$ - определение

MEDICAL CONDITION
Atrial premature complexes; Premature atrial contractions; Supraventricular extrasystole; Skipped heart beat; SVES; Atrial premature contraction; Supraventricular extra systole; Skipped beat; Atrial premature beat; Atrial premature beats
  • Normal sinus rhythm and ectopic beats - premature ventricular contractions (PVC) and premature atrial contractions (PAC) shown on an [[EKG]]

ISO/IEC 27004         
Iso27004; Iso 27004
ISO/IEC 27004 Information Technology – Security techniques – Information Security Management – Measurement. It is part of a family of standards of information security management system (ISMS), which is a systematic approach to securing sensitive information, of ISO/IEC.
Premature heart beat         
  • Premature heart beat revealed by blood flow pulse wave in the central retinal artery (red) and vein (blue) by [[laser Doppler imaging]].
  • Premature heart beat revealed by [[laser Doppler imaging]] by digital holography of the eye fundus
HEART RHYTHM DISORDER
Extrasystole; Premature beat
A premature heart beat or extrasystole is a heart rhythm disorder corresponding to a premature contraction of one of the chambers of the heart. Premature heart beats come in two different types: premature atrial contractions and premature ventricular contractions.
extrasystole         
  • Premature heart beat revealed by blood flow pulse wave in the central retinal artery (red) and vein (blue) by [[laser Doppler imaging]].
  • Premature heart beat revealed by [[laser Doppler imaging]] by digital holography of the eye fundus
HEART RHYTHM DISORDER
Extrasystole; Premature beat
[??kstr?'s?st(?)li]
¦ noun Medicine a heartbeat outside the normal rhythm, as often occurs in normal individuals.

Википедия

Premature atrial contraction

Premature atrial contraction (PAC), also known as atrial premature complexes (APC) or atrial premature beats (APB), are a common cardiac dysrhythmia characterized by premature heartbeats originating in the atria. While the sinoatrial node typically regulates the heartbeat during normal sinus rhythm, PACs occur when another region of the atria depolarizes before the sinoatrial node and thus triggers a premature heartbeat, in contrast to escape beats, in which the normal sinoatrial node fails, leaving a non-nodal pacemaker to initiate a late beat.

The exact cause of PACs is unclear; while several predisposing conditions exist, single isolated PACs commonly occur in healthy young and elderly people. Elderly people that get PACs usually don't need any further attention besides follow ups due to unclear evidence.

PACs are often completely asymptomatic and may be noted only with Holter monitoring, but occasionally they can be perceived as a skipped beat or a jolt in the chest. In most cases, no treatment other than reassurance is needed for PACs, although medications such as beta blockers can reduce the frequency of symptomatic PACs.