Egophony

Jump to: navigation, search

WikiDoc Resources for Egophony

Articles

Most recent articles on Egophony

Most cited articles on Egophony

Review articles on Egophony

Articles on Egophony in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Egophony

Images of Egophony

Photos of Egophony

Podcasts & MP3s on Egophony

Videos on Egophony

Evidence Based Medicine

Cochrane Collaboration on Egophony

Bandolier on Egophony

TRIP on Egophony

Clinical Trials

Ongoing Trials on Egophony at Clinical Trials.gov

Trial results on Egophony

Clinical Trials on Egophony at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Egophony

NICE Guidance on Egophony

NHS PRODIGY Guidance

FDA on Egophony

CDC on Egophony

Books

Books on Egophony

News

Egophony in the news

Be alerted to news on Egophony

News trends on Egophony

Commentary

Blogs on Egophony

Definitions

Definitions of Egophony

Patient Resources / Community

Patient resources on Egophony

Discussion groups on Egophony

Patient Handouts on Egophony

Directions to Hospitals Treating Egophony

Risk calculators and risk factors for Egophony

Healthcare Provider Resources

Symptoms of Egophony

Causes & Risk Factors for Egophony

Diagnostic studies for Egophony

Treatment of Egophony

Continuing Medical Education (CME)

CME Programs on Egophony

International

Egophony en Espanol

Egophony en Francais

Business

Egophony in the Marketplace

Patents on Egophony

Experimental / Informatics

List of terms related to Egophony

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Synonyms and Keywords: e to a changes

Overview

Egophony (British: Aegophony) is an increased resonance of voice sounds heard when auscultating the lungs, often caused by consolidated or compressed lung tissue due to an infection, pleural effusion, tumor, or congestion. It is due to enhanced transmission of high-frequency noise across fluid, such as in abnormal lung tissue, with lower frequencies filtered out. It results in a high-pitched nasal or bleating quality in the affected person's voice.

While listening to the lungs with a stethoscope, the patient is asked to say the letter "e." What is heard is a higher pitched sound that sounds like the letter "a." (Some doctors refer to this as "e to a changes.") Most commonly, this indicates pneumonia.

Similar terms are bronchophony and whispered pectoriloquy. The mechanism is the same: fluid or consolidation causes the sound of the voice to be transmitted loudly to the periphery of the lungs where it is usually not heard.

Egophony comes from the Greek word for "goat," (aix, aig-) in reference to the bleating quality of the sound. [1]

References

  1. Sapira JD (1995). "About egophony". Chest. 108 (3): 865–7. PMID 7656646. 

Linked-in.jpg