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O que (quem) é premature sharpening - definição
WIKIMEDIA DISAMBIGUATION PAGE
Prematurity; Premature (disambiguation); Premature (film)
Premature junctional contraction
PREMATURE HEARTBEAT
Premature junctional contractions
Premature junctional contractions (PJCs), also called atrioventricular junctional premature complexes or junctional extrasystole, are premature cardiac electrical impulses originating from the atrioventricular node of the heart or "junction". This area is not the normal but only a secondary source of cardiac electrical impulse formation.
Premature atrial contraction
![Normal sinus rhythm and ectopic beats - premature ventricular contractions (PVC) and premature atrial contractions (PAC) shown on an [[EKG]]](https://commons.wikimedia.org/wiki/Special:FilePath/NSR and Ectopic beats (PVC and PAC).svg?width=200 "Normal sinus rhythm and ectopic beats - premature ventricular contractions (PVC) and premature atrial contractions (PAC) shown on an [[EKG]]")
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
Premature atrial contractions (PACs), 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.
Premature ventricular contraction
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![left ventricle]]. Ectopic foci can be located anywhere in the ventricles in the case of PVCs.](https://commons.wikimedia.org/wiki/Special:FilePath/Ectopic focus.svg?width=200 "left ventricle]]. Ectopic foci can be located anywhere in the ventricles in the case of PVCs.")
HUMAN DISEASE
Premature Ventricular Contraction; VPB; Multifocal ventricular premature beats; Ventricular premature complexes; Premature ventricular contractions; Premature ventricular beat; Skipped heartbeat; Ventricular extra beats; Ventricular extrasystole; Ventricular premature contraction; Ventricular premature beat; Premature ventricular complex; Ventricular premature complex; Ventricular premature contractions; Preventricular contraction; Ventricular ectopic beat; Ventricular extra systole; Ventricular premature beats
A premature ventricular contraction (PVC) is a common event where the heartbeat is initiated by Purkinje fibers in the ventricles rather than by the sinoatrial node. PVCs may cause no symptoms or may be perceived as a "skipped beat" or felt as palpitations in the chest.
Wikipédia
Premature
Premature may refer to:
- Premature (2014 film), an American comedy film
- Premature (2019 film), an American romantic drama film
- PREMature, a 2015 British television drama miniseries
