Document Detail


Venous thrombosis in patients who have undergone major hip or knee surgery: detection with compression US and impedance plethysmography.
MedLine Citation:
PMID:  1947076     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To compare the sensitivity, specificity, and predictive values of compression ultrasonography (US) in postoperative orthopedic patients with those of (a) impedance plethysmography in postoperative patients and (b) compression US in symptomatic outpatients, the authors performed an investigator-blinded cohort study. One hundred thirty-four consecutive inpatients who had undergone elective knee-replacement surgery or surgery for a fractured hip and 65 consecutive outpatients with clinically suspected venous thrombosis who had undergone venography were evaluated. Compression US allowed detection of 11 of 21 (52.4%) proximal-vein thrombi but was insensitive to calf-vein thrombi in the orthopedic patients. Compression US had a significantly greater specificity and positive predictive value than impedance plethysmography for all thrombi in orthopedic patients; compression US also had greater sensitivity. The sensitivity of compression US for proximal-vein thrombi was significantly higher (92.1%) in symptomatic outpatients than in orthopedic patients. The authors conclude that compression US has significant advantages over impedance plethysmography in the detection of proximal-vein thrombi in patients who have undergone hip- or knee-replacement surgery.
Authors:
J S Ginsberg; C C Caco; P A Brill-Edwards; A A Panju; R Bona; C M Demers; L M Tuters; P Nugent; J McGinnis; B M Grant
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Radiology     Volume:  181     ISSN:  0033-8419     ISO Abbreviation:  Radiology     Publication Date:  1991 Dec 
Date Detail:
Created Date:  1991-12-18     Completed Date:  1991-12-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  651-4     Citation Subset:  AIM; IM    
Affiliation:
Department of Medicine, McMaster University, Hamilton, Ont, Canada.
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MeSH Terms
Descriptor/Qualifier:
Hip Joint / surgery*
Hip Prosthesis
Humans
Knee Joint / surgery*
Knee Prosthesis
Phlebography
Plethysmography, Impedance*
Postoperative Complications / diagnosis*,  ultrasonography
Predictive Value of Tests
Sensitivity and Specificity
Thrombophlebitis / diagnosis*,  radiography,  ultrasonography

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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