Fremitus

From Wikipedia, the free encyclopedia
Fremitus
Classification and external resources
DiseasesDB 13981 13982
[edit on Wikidata]

Fremitus is a vibration transmitted through the body.[1] In common medical usage, it usually refers to assessment of the lungs by either the vibration intensity felt on the chest wall (tactile fremitus) and/or heard by a stethoscope on the chest wall with certain spoken words (vocal fremitus), although there are several other types.

Types

Vocal fremitus

When a person speaks, the vocal cords create vibrations (vocal fremitus) in the tracheobronchial tree and through the lungs and chest wall, where they can be felt (tactile fremitus).[2] This is usually assessed with the healthcare provider placing the flat of their palms on the chest wall and then asking a patient to repeat a diphthong such as "blue balloons" or "toys for tots" (the original diphthong used was the German word Neunundneunzig but the translation to the English 'ninety nine' was not a diphthong and thus not as effective in eliciting fremitus). An increase in tactile fremitus indicates denser or inflamed lung tissue, which can be caused by diseases such as pneumonia. A decrease suggests air or fluid in the pleural spaces or a decrease in lung tissue density, which can be caused by diseases such as chronic obstructive pulmonary disease or asthma.[2]

Hepatic fremitus

Hepatic fremitus is a vibration felt over the person's liver. It is thought to be caused by a severely inflamed and necrotic liver rubbing up against the peritoneum. The name 'Monash sign' has been suggested for this clinical sign, after the Monash Medical Centre in Melbourne, Australia.[3][non-primary source needed]

Dental fremitus

Fremitus appears when teeth move. This can be assessed by feeling and looking at teeth when the mouth is opened and closed.[4]

References

  1. ^ "fremitus" at Dorland's Medical Dictionary
  2. ^ a b Kacmarek, Robert M.; Stoller, James K.; Heuer, Al (2016-02-05). Egan's Fundamentals of Respiratory Care. Elsevier Health Sciences. p. 336. ISBN 9780323393850. 
  3. ^ Nagappan R, Parkin G, Tsui A, Sievert W (2001). "Hepatic fremitus: 'Monash sign'". Intern Med J. 31 (9): 567–8. PMID 11767877. doi:10.1046/j.1445-5994.2001.00145.x. 
  4. ^ Jr, Paul A. Levi; Rudy, Robert J.; Jeong, Y. Natalie; Coleman, Daniel K. (2015-12-29). Non-Surgical Control of Periodontal Diseases: A Comprehensive Handbook. Springer. pp. 213–214. ISBN 9783662466230. 
Retrieved from "https://en.wikipedia.org/w/index.php?title=Fremitus&oldid=766760440"
This content was retrieved from Wikipedia : http://en.wikipedia.org/wiki/Fremitus
This page is based on the copyrighted Wikipedia article "Fremitus"; it is used under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC-BY-SA). You may redistribute it, verbatim or modified, providing that you comply with the terms of the CC-BY-SA