Point-of-care Ultrasound in Suspected Pulmonary Embolism

Point-of-care Ultrasound in the Diagnostic Work-up of Suspected Pulmonary Embolism - a Multicenter Randomized Controlled Trial

Pulmonary embolism (PE) is a common cardiovascular condition with an estimated incidence of 0.60 to 1.12 per 1000 inhabitants in the United States of America, and the diagnosis is challenging as patients with PE present with a wide array of symptoms. Computed tomography pulmonary angriography (CTPA) and lung ventilation-perfusion scintigraphy (VQ) are considered the gold-standards in PE-diagnostics but may not always be feasible. CTPA is contraindicated by contrast allergy or renal failure and both modalities require involvement of multiple staff-members and transport of the patient. Lung scintigraphy cannot be performed in an emergency situation, with unstable patients and patients unable to comply to the examination. Ultrasound represent a possible tool in confirming or dismissing clinical PE suspicion. Ultrasound is non-invasive and can be performed bedside by the clinician, an approach known as point-of-care ultrasound (PoCUS), reducing both time, radiation-exposure and costs. The aim of this study is to investigate whether integrating cardiac, lung and deep venous ultrasound in the clinical evaluation of suspected PE reduces the need for referral to CTPA or lung scintigraphy, during emergency department work up, while maintaining safety standards.

Point-of-care Ultrasound in Suspected Pulmonary Embolism

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