Remote dielectric sensing to detect acute heart failure in patients with dyspnoea: a prospective observational study in the emergency department

Remote dielectric sensing (ReDS) enables quick estimation of lung fluid content. To examine if ReDS is superior to other methods in detecting acute heart failure. We included consecutive patients with dyspnoea from the emergency departments at Bispebjerg Hospital, Copenhagen, and performed ReDS, low...

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Bibliographic Details
Published in:	European heart journal open Vol. 2; no. 6; p. oeac073
Main Authors:	Olesen, Anne Sophie Overgaard, Miger, Kristina, Fabricius-Bjerre, Andreas, Sandvang, Kathrine Dyrsting, Kjesbu, Ingunn Eklo, Sajadieh, Ahmad, Høst, Nis, Køber, Nana, Wamberg, Jesper, Pedersen, Lars, Schultz, Hans Henrik Lawaetz, Abild-Nielsen, Annemette Geilager, Wille, Mathilde Marie Winkler, Nielsen, Olav Wendelboe
Format:	Journal Article
Language:	English
Published:	England Oxford University Press 01-11-2022
Subjects:	Complications and side effects Diagnosis Heart failure Original Risk factors Shortness of breath Denmark Acute decompensated heart failure Dyspnoea Remote dielectric sensing technology
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Summary:	Remote dielectric sensing (ReDS) enables quick estimation of lung fluid content. To examine if ReDS is superior to other methods in detecting acute heart failure. We included consecutive patients with dyspnoea from the emergency departments at Bispebjerg Hospital, Copenhagen, and performed ReDS, low-dose chest computed tomography (CT), echocardiogram, lung ultrasound, NT-Pro-brain natriuretic peptide (NT-proBNP), and a Boston score evaluation (chest X-ray and clinical signs). ReDS values >35% were used as a cut-off to diagnose pulmonary congestion. Acute heart failure was adjudicated by experts' review of health records but independently of ReDS values. Sub-analyses investigated ReDS in acute heart failure patients with congestion on CT. We included 97 patients within a median of 4.8 h from admittance: 25 patients (26%) were ReDS-positive and 39 (40%) had adjudicated acute heart failure (21 with and 18 without CT congestion). Heart failure patients had median ReDS 33%, left ventricular ejection fraction 48%, and NT-proBNP 2935 ng/L. A positive ReDS detected heart failure with 46% sensitivity, 88% specificity, and 71% accuracy. The AUC for ReDS was like the Boston score ( = 0.88) and the lung ultrasound score ( = 0.74). CT-congested heart failure patients had higher ReDS values than patients without heart failure (median 38 vs. 28%, < 0.001). Heart failure patients without CT-congestion had ReDS values like patients without heart failure (mean 30 vs. 28%, = 0.07). ReDS detects acute heart failure similarly to the Boston score and lung ultrasound score, and ReDS primarily identifies the acute heart failure patients who have congestion on a chest CT.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2752-4191 2752-4191
DOI:	10.1093/ehjopen/oeac073