Remote dielectric sensing to detect acute heart failure in patients with dyspnoea: a prospective observational study in the emergency department. Issue 6 (2nd November 2022)

• Record Type: Journal Article
• 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
• Editors: Bäck, Magnus
• Is Part Of: European Heart Journal Open. Volume 2:Issue 6(2022)
• Publication Date: 2022-11-02
• Subjects: Remote dielectric sensing technology -- Dyspnoea -- Acute decompensated heart failure; 616
• DOI: 10.1093/ehjopen/oeac073
• Languages: English
• ISSNs: 2752-4191

Abstract

Abstract: Aims: 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. Methods and results: 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 ( P = 0.88) and the lung ultrasound score ( P = 0.74). CT-congested heart failure patients had higher ReDS values than patients without heart failure (median 38 vs. 28%, P < 0.001). Heart failure patients without CT-congestion had ReDS values like patients without heart failure (mean 30 vs. 28%, P = 0.07). Conclusion: 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. Graphical Abstract: Graphical Abstract