Document Detail

High-resolution CT scan in the evaluation of exercise-induced interstitial pulmonary edema in cardiac patients.
MedLine Citation:
PMID:  9187177     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To evaluate the onset of exercise-induced interstitial pulmonary edema in cardiac patients by high-resolution CT (HRCT). DESIGN: Prospective, normal controlled. PARTICIPANTS: Thirty subjects divided into three groups: group 1--10 outpatients with chronic congestive heart failure (CCHF), New York Heart Association (NYHA) class I; group 2--10 outpatients with CCHF, NYHA class II/III; and group 3 (control)--10 normal subjects. METHOD: HRCT scans were obtained at rest and 4, 8, 12, 16, and 20 min after progressive treadmill exercise test. RESULTS: The following HRCT findings consistent with interstitial edema were significantly different (p<0.05) in group 2 when compared with groups 1 and 3: artery/bronchus ratio > 1 in the upper lobes, peripheral increase in the vascular markings, interlobular septal thickening, and peribronchial "cuffing." These differences were maximal at 12 min after exercise and returned to normal values after 20 min. CONCLUSION: Interstitial pulmonary edema was present immediately after exercise in CCHF patients. It may be important in the genesis of dyspnea of these patients.
F C Brasileiro; F S Vargas; J I Kavakama; J J Leite; A Cukier; C Préfaut
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Chest     Volume:  111     ISSN:  0012-3692     ISO Abbreviation:  Chest     Publication Date:  1997 Jun 
Date Detail:
Created Date:  1997-07-03     Completed Date:  1997-07-03     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0231335     Medline TA:  Chest     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1577-82     Citation Subset:  AIM; IM    
Instituto do Coracão, Faculty of Medicine, University of São Paulo, Brazil.
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MeSH Terms
Analysis of Variance
Chronic Disease
Exercise / physiology*
Heart Failure / complications,  radiography*
Lung / radiography
Middle Aged
Prospective Studies
Pulmonary Edema / etiology,  radiography*
Reference Values
Respiratory Function Tests
Statistics, Nonparametric
Time Factors
Tomography, X-Ray Computed / methods*,  statistics & numerical data

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