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premature atrial contraction
(redirected from Premature atrial contractions)

   Also found in: Wikipedia 0.01 sec.
premature atrial contraction
n. Abbr. PAC
An ectopic heartbeat that originates in the atria and precedes a typical atrial contraction.


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One of them had first-degree atrioventricular block with uniform, rare premature ventricular contractions; one had rare, uniform premature ventricular contractions; one had rare, premature atrial contractions; one had frequent premature ventricular contractions with couplets; and one had premature atrial contractions with short episodes of supraventricular tachycardia.
Premature supraventricular contractions or premature atrial contractions (PAC).
Rodrigues implanted an Identity(R) ADx DR Model 5380 device in a 64-year-old female patient who presented with sick sinus syndrome and a history of premature atrial contractions.
 
 
 
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