Chest ACCP Member Benefits
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 HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Browning, I.
Right arrow Articles by Tobin, M.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Browning, I.
Right arrow Articles by Tobin, M.

Chest, Vol 97, 1317-1321, Copyright © 1990 by American College of Chest Physicians

ARTICLES

Importance of respiratory rate as an indicator of respiratory dysfunction in patients with cystic fibrosis

IB Browning, GE D'Alonzo and MJ Tobin
Department of Medicine, University of Texas Health Science Center, Houston.

Bedside measurement of respiratory frequency is commonly performed in a cursory manner and judged to be of little clinical importance. However, in a recent study of patients being weaned from mechanical ventilation, we found that tachypnea was quite accurate in predicting an unsuccessful weaning outcome. The present study was undertaken to examine the relationship between nonobtrusive measurements of respiratory frequency, using a calibrated inductive plethysmograph, and detailed measurements of pulmonary function in 11 adult patients with cystic fibrosis of varying severity. Respiratory frequency was increased in the patients with cystic fibrosis compared with a group of healthy control subjects, as was minute ventilation and mean inspiratory flow. Respiratory frequency was a sensitive predictor of respiratory dysfunction, being significantly (p less than 0.05) correlated with airway obstruction (r = 0.76), hyperinflation (r = 0.52), arterial oxygenation (r = -0.59), rib cage-abdominal discoordination (r = 0.54), and maximum ventilation during exercise (r = 0.66). Despite the presence of tachypnea, the patients did not display shallow breathing; indeed, tidal volume was not correlated with any of the above abnormalities. In conclusion, respiratory rate was a useful indicator of respiratory dysfunction in this group of patients with cystic fibrosis.


This article has been cited by other articles:


Home page
 Eur Respir JHome page
S.C. Ranganathan, I. Goetz, A-F. Hoo, S. Lum, R. Castle, J. Stocks, and and the London Collaborative Cystic Fibrosis Group
Assessment of tidal breathing parameters in infants with cystic fibrosis
Eur. Respir. J., November 1, 2003; 22(5): 761 - 766.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Respir. Crit. Care Med.Home page
N. Hart, M. I. Polkey, A. Clement, M. Boule, J. Moxham, F. Lofaso, and B. Fauroux
Changes in Pulmonary Mechanics with Increasing Disease Severity in Children and Young Adults with Cystic Fibrosis
Am. J. Respir. Crit. Care Med., July 1, 2002; 166(1): 61 - 66.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Respir. Crit. Care Med.Home page
W. H. FINLAY, C. F. LANGE, M. KING, and D. P. SPEERT
Lung Delivery of Aerosolized Dextran
Am. J. Respir. Crit. Care Med., January 1, 2000; 161(1): 91 - 97.
[Abstract] [Full Text]

Home page
 CLIN PEDIATRHome page
C. G. Caronia, J. Gorvoy, P. Silver, C. Quinn, L. Nimkoff, and M. Sagy
Use of Bilevel Positive Airway Pressure (BIPAP) in End-Stage Patients with Cystic Fibrosis Awaiting Lung Transplantation
Clinical Pediatrics, September 1, 1998; 37(9): 555 - 559.
[Abstract] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1990 by the American College of Chest Physicians.