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Qué (quién) es atrial$5727$ - definición
MEDICAL CONDITION
Left atrial myxoma; Atrial myxoma, familial; Familial atrial myxoma; Right atrial myxoma; Atrial myxoma; Diastolic plop; Atrial tumor
![Atrial myxoma covered by [[endothelium]]. H&E stain.](https://commons.wikimedia.org/wiki/Special:FilePath/Atrial myxoma edge high mag.jpg?width=200 "Atrial myxoma covered by [[endothelium]]. H&E stain.")
Atrial tachycardia
TYPE OF RAPID HEARTBEAT
Paroxysmal Atrial Tachycardia; Ectopic Atrial tachycardia; Unifocal atrial tachycardia; Ectopic rhythm; Ectopic atrial tachycardia; Paroxysmal atrial tachycardia
Atrial tachycardia is a type of heart rhythm problem in which the heart's electrical impulse comes from an ectopic pacemaker (that is, an abnormally located cardiac pacemaker) in the upper chambers (atria) of the heart, rather than from the sinoatrial node, the normal origin of the heart's electrical activity.
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]]")
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.
Atrial branches of coronary arteries
Anterior right atrial branch; Atrial branches of right coronary artery; Left atrial branch; Arteriae atriales; Atrial arteries
The atrial branches of right coronary artery derive from the right coronary artery and provide part of the blood supply to the right atrium and left atrium.
Wikipedia
Cardiac myxoma
A myxoma is a rare benign tumor of the heart. Myxomata are the most common primary cardiac tumor in adults, and are most commonly found within the left atrium near the valve of the fossa ovalis. Myxomata may also develop in the other heart chambers. The tumor is derived from multipotent mesenchymal cells. Cardiac myxoma can affect adults between 30 and 60 years of age.
