Chest ACCP Education Calendar
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Guest Access | Sign In via User Name/Password
This Article
Right arrow Full Text (PDF) Free
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Article Archive
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Haffty, B.
Right arrow Articles by Spodick, D.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Haffty, B.
Right arrow Articles by Spodick, D.

Chest, Vol 83, 771-775, Copyright © 1983 by American College of Chest Physicians

ARTICLES

Noninvasive tracking of peripheral resistance by ear densitography

BG Haffty, NE O'Hare, JB Singh and DH Spodick

Owing to the interaction between the left ventricle and the arterial system, pulse contour during ejection is significantly affected by changes in peripheral resistance. Quantitative description of the pulse configuration as a function of peripheral resistance involves invasive investigation of complex frequency and impedance spectra. The ear densitogram noninvasively yields a pulse wave shown to closely track changes in the central arterial pulse; in this investigation, its decreasing systolic slope responded to changes in the peripheral resistance like those in the central pulse and in arterial models. The decreasing slope of the ear densitogram pulse (RNAD) can reliably track changes in peripheral resistance.




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1983 by the American College of Chest Physicians.