Why the study?
Does a combined heart, lungs, and proximal leg veins ultrasound exploration by emergency physicians reduce the need for CT pulmonary angiography or lung scintigraphy in emergency department patients with suspected pulmonary embolism?
Does a combined heart, lungs, and proximal leg veins ultrasound exploration by emergency physicians reduce the need for CT pulmonary angiography or lung scintigraphy in emergency department patients with suspected pulmonary embolism?
Answers are grounded in this paper and cite their sources.
While multi-organ point-of-care ultrasound in the emergency department substantially reduces CT utilization for suspected pulmonary embolism by confirming deep vein thrombosis, its high false-negative rate makes it unsafe as a standalone rule-out test.
The wide availability of CT scans for patients in emergency departments generally improves diagnostic pathways, but its increased use may also pose significant public health challenges that include the risk of cancer from cumulative radiation exposure, overdiagnosis and overtreatment of insignificant diseases, increased emergency department stay, and associated costs. Suspected pulmonary embolism (PE) is a prime example of these issues. The symptoms of PE are unspecific, leading clinicians to often consider it to avoid missing a potentially fatal condition.
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Roy et al. (2024) conducted an editorial in Suspected pulmonary embolism (n=150). Combined heart, lungs and proximal leg veins ultrasound exploration by emergency physicians vs. Standard lung imaging strategy per current guidelines (CTPA or lung scintigraphy) was evaluated on Use of CTPA or lung scintigraphy (ARR 45.2%, 95% CI 34.3-56.6, p=<0.0001).
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