premature ventricular contraction
premature ventricular contraction
| Noun | 1. | premature ventricular contraction - irregularity of cardiac rhythm; recurrent occurrences can be a precursor of ventricular fibrillation |
| 单词 | premature ventricular contraction | |||
| 释义 | premature ventricular contractionpremature ventricular contraction
premature ventricular contractionpremature ventricular contraction (PVC),premature ventricular contractionpremature ventricular contractionVentricular premature beat Cardiology A ventricular beat initiated by an ectopic focus, which occurs before the usual sinuatrial beat, characterized by premature, widened, bizarre QRS complexes, not preceded by a P wave; PVCs are extremely common, occur in1⁄2 of normal adults monitored by EKG for 24 hrs, and are of no significance Etiology Anxiety, fever, stimulants, associated with drug toxicity–digitalis, quinidine, tricyclic antidepressants and an indication for discontinuing therapy Treatment Lidocaine, quinidine, propranolol, amiodaronepre·ma·ture ven·tri·cu·lar con·trac·tion(PVC) (prē'mă-chŭr' ven-trik'yū-lăr kŏn-trak'shŭn)pre·ma·ture ven·tri·cu·lar con·trac·tion(PVC) (prē'mă-chŭr' ven-trik'yū-lăr kŏn-trak'shŭn)premature ventricular contraction
Synonyms for premature ventricular contraction
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