TITLE

Screening for Deep Vein Thrombosis in Asymptomatic High-risk Patients: A Comparison Between Digital Photoplethysmography and Venous Ultrasonography

AUTHOR(S)
Sharif-Kashani, Babak; Behzadnia, Neda; Shahabi, Payman; Sadr, Makan
PUB. DATE
June 2009
SOURCE
Angiology;Jun/Jul2009, Vol. 60 Issue 3, p301
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Objective: To determine the role of digital photoplethysmography in screening asymptomatic patients who are susceptible for developing deep vein thrombosis. Methods: Three hundred and thirty-seven limbs in 169 patients who were high risk for development of deep vein thrombosis were assessed by ultrasonography digital photoplethysmography and the results were compared. Results: Thirteen limbs were found to have deep vein thrombosis as demonstrated by ultrasonography. All limbs with a venous refilling time greater than 12 seconds had a normal ultrasonography. Compared with ultrasonography and using refilling time less than 12 seconds as the cutoff point, digital photoplethysmography achieved a sensitivity, specificity, positive predictive value, and negative predictive value of 100%, 73.8%, 13.3%, and 100% respectively, for detecting deep vein thrombosis in asymptomatic high-risk patients. Conclusion: Digital photoplethysmography is a simple, noninvasive, and highly sensitive test for screening of deep vein thrombosis.
ACCESSION #
43450613

 

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