pericardial friction rub

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1. to move something over a surface with friction.
2. the action of such movement.
friction rub an auscultatory sound caused by the rubbing together of two serous surfaces, as in pericardial rub; called also rub.
pericardial rub (pericardial friction rub) a scraping or grating noise heard with the heart beat, usually a to-and-fro sound, associated with an inflamed pericardium. Patients often complain of pleuritic discomfort that radiates in the chest, especially during inhalation. This condition must be distinguished from angina pectoris.
pleural rub (pleuritic rub) a friction rub caused by friction between the visceral and costal pleurae.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

per·i·car·di·al fric·tion sound

a to-and-fro grating, rasping, or, rarely, creaking sound heard over the heart in some cases of pericarditis, due to rubbing of the inflamed pericardial surfaces as the heart contracts and relaxes; during normal sinus rhythm it is usually triphasic; during any rhythm it may be biphasic or uniphasic.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Physical examination may reveal peripheral edema, elevated jugular venous pressure, rales, tachycardia, s3 or s4 gallop, a mitral regurgitant murmur, or a pericardial friction rub.
Our index case fulfilled the clinical diagnostic criteria for acute pericarditis with typical chest pain, pericardial friction rub, and new pericardial effusion [1].