Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,902,484,714 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

QT Interval

   Also found in: Acronyms, Wikipedia 0.03 sec.
QT interval
the portion of an electrocardiogram between the onset of the Q wave and the end of the T wave, representing the total time for ventricular depolarization and repolarization.

QT Interval
Cardiac pacing The interval between the beginning of a paced QRS complex and the peak of the subsequent T wave–evoked QT in response to metabolic needs in a normal EKG; QT shortening signals a need for an ↑ in pacing rate. See Electrocardiogram.


Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Add definition
Mentioned in?  References in periodicals archive?   Medical browser?   Full browser?
 
INTRODUCTION The QT interval is measured as the time interval between the onset of the QRS complex and the end of the T wave.
An international team of more than 40 scientists, led by Arne Pfeufer of Munich University, analysed the genomes of nearly 16,000 individuals whose QT intervals had been measured by electrocardiogram.
The researchers identified 10 genes associated with changes in the so-called QT interval duration, which measures the length of time the heart takes to contract.
 
 
 
Medical Dictionary
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.