Abordagem diagnóstica dos pacientes com suspeita de trombose venosa profunda dos membros inferiores

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Rollo, Hamilton Almeida [UNESP]
Fortes, Veronica Barreto [UNESP]
Fortes Jr., Archângelo Tarciso [UNESP]
Yoshida, Winston Bonetti [UNESP]
Lastória, Sidnei [UNESP]
Maffei, Francisco Humberto de Abreu [UNESP]
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Deep venous thrombosis is a relatively common disease, which can present pulmonary embolism as a complication in its acute phase, and later the post-thrombotic syndrome. Thus, diagnosis should be made as soon as possible, in order to prevent or minimize such complications. Several studies have shown that the symptoms and the clinical signs are inaccurate for the deep venous thrombosis diagnosis and that complementary exams are necessary. As an attempt to simplify the patients' assessment, Well et al., in 1997, developed a clinical prediction index that combines symptoms, signs and risk factors for deep venous thrombosis and managed to make a simpler approach through an association of this index with the complementary exams. Phlebography has been considered the gold standard of complementary exams. However, since it is an invasive exam and thus subject to complications, other diagnostic methods were introduced aiming at making the diagnostic approach simpler and less invasive. Doppler ultrasound, duplex scan, impedance plethysmography, computed tomography, and blood tests such as the D-dimer are some of the available methods for assessing the patient with suspicion of deep venous thrombosis. Among them, duplex scan has shown excellent accuracy and it is currently widely accepted as the first choice test for approaching the patient with deep venous thrombosis. Several authors have suggested an association of diagnostic methods to simplify and make the assessment of such patients more cost-effective, leading to the introduction of a wide range of diagnostic strategies. The different diagnostic methods used for assessing deep venous thrombosis are discussed, as well as a review of the literature on the accuracy, advantages and disadvantages of these methods. Copyright © 2005 by Sociedade Brasileira de Angiologia e Cirurgia Vascular.
Diagnosis, Lower extremity, Venous thrombosis, D dimer, blood analysis, clinical feature, computer assisted tomography, deep vein thrombosis, diagnostic accuracy, diagnostic approach route, diagnostic test, differential diagnosis, Doppler echography, Doppler flowmeter, human, impedance plethysmography, intermethod comparison, leg phlebography, leg thrombosis, medical assessment, medical examination, prediction, review, risk factor
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Jornal Vascular Brasileiro, v. 4, n. 1, p. 79-92, 2005.