Pulmonary embolism compression ultrasonography

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Synonyms and keywords: Doppler study of the legs, lower extremity noninvasive studies (LENIS)

Editor(s)-In-Chief: The APEX Trial Investigators, C. Michael Gibson, M.S., M.D. [1]

Overview

Compression ultrasonography of the legs is used to evaluate the presence of deep venous thrombosis (DVT) in the lower extremities, which can lead to the development of a pulmonary embolism (PE). The presence of a DVT demonstrated by ultrasonography is enough to warrant anticoagulation without a V/Q or spiral CT scans. The decision to administer anticoagulation therapy to a patient with a positive compression ultrasound is due to the strong association between DVT and subsequent PE. Compression ultrasonography is not the routine initial method of evaluation in a suspected PE during pregnancy unless the patient has coexisting symptoms and signs of DVT.[1] In case the compression ultrasound is negative for DVT and there is persistent clinical suspicion of PE, the negative ultrasound does not rule out PE and additional imaging tests are required.[1]

References

  1. 1.0 1.1 Leung AN, Bull TM, Jaeschke R, Lockwood CJ, Boiselle PM, Hurwitz LM; et al. (2011). "An official American Thoracic Society/Society of Thoracic Radiology clinical practice guideline: evaluation of suspected pulmonary embolism in pregnancy". Am J Respir Crit Care Med. 184 (10): 1200–8. doi:10.1164/rccm.201108-1575ST. PMID 22086989.

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