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Management of suspected pulmonary embolism patients with low clinical and low V/Q probability.

Abstract : OBJECTIVE: To assess whether guidelines for the management of suspected PE, recommending that ventilation/perfusion (V/Q) scintigraphy should be followed by other imaging in case of non-diagnostic result, and interpreted along with the clinical probability, are applied in daily practice. DESIGN: Two-year audit study. SETTING: Tertiary hospital in France. PARTICIPANTS: All patients referred to the nuclear medicine department for a suspected pulmonary embolism (PE), with a low clinical probability, a positive D-Dimer test, and a low V/Q scintigraphy. INTERVENTION: We reviewed medical records to collect data on further diagnostic strategy and therapeutic management. MAIN OUTCOME MEASURE: Thromboembolic risk during a three-month follow up in patients who did not undergo anticoagulation therapy on the basis of a negative diagnostic work up. RESULTS: Of the 456 selected patients, PE was excluded on the basis of a low pretest probability and a low V/Q scintigraphy probability without further testing in 184 (group 1). In the other 272 patients (group 2), 4 venous thromboembolism (VTE) events were diagnosed by leg vein ultrasonography and/or computed tomography pulmonary angiography. In patients who did not receive anticoagulant treatment during follow up, one patient from group 1 (0.6%, 95% confidence interval 0.1 to 3.3) and two patients from group 2 (0.9%, 95% CI 0.2 to 3.2) had an acute venous thromboembolic event. CONCLUSION: Different attitudes are adopted by physicians in patients with a low clinical probability and a low V/Q scintigraphy probability, without impact on safety, as assessed by a non-significant difference in the three-month thromboembolic risks between these two groups.
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https://hal.univ-brest.fr/hal-00684141
Contributor : Ghislaine Calvez Connect in order to contact the contributor
Submitted on : Friday, March 30, 2012 - 4:21:16 PM
Last modification on : Thursday, March 31, 2022 - 11:00:02 AM

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Pierre-Yves Salaun, Alexandra Le Duc-Pennec, Grégoire Le Gal, Francis Couturaud, Philippe Guillo, et al.. Management of suspected pulmonary embolism patients with low clinical and low V/Q probability.. Thrombosis Research, Elsevier, 2008, 122 (4), pp.450-4. ⟨10.1016/j.thromres.2007.10.024⟩. ⟨hal-00684141⟩

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