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- Encarnación Gutiérrez-Carretero, Ana María Campos, Luis Giménez-Miranda, Kambitz Rezaei, Amelia Peña, Javier Rossel, Juan Manuel Praena, Tarik Smani, Antonio Ordoñez, and Francisco Javier Medrano.
- Unidad Clínica de Cardiología y Cirugía Cardiovascular, Hospital Universitario Virgen del Rocío, Sevilla, España; Instituto de Biomedicina de Sevilla (IBiS), Hospital Virgen del Rocio, CSIC, Universidad de Sevilla, Sevilla, España.
- Med Clin (Barc). 2024 Aug 30; 163 (4): 175182175-182.
Introduction And ObjectivesThe current evaluation of acute heart failure (HF) does not allow an adequate prediction of its evolution. The electrical bioimpedance (BI) allows knowing the state of blood volume, until now only with fixed equipment. We have developed and validated a portable and wireless device to measure BI at the ankle (IVOL). The objective of the study is to know the long-term prognostic value of the point measurement of BI with IVOL in patients with acute HF.MethodsA prospective cohort study of unselected patients admitted for acute HF in a tertiary hospital. The association between BI and different clinical, analytical and echocardiographic variables on admission and clinical evolution were analyzed.Results76 patients were included (mean age 66.1 years, 71.1% men, 68.4% hypertensive, 34.2% diabetic, mean NT-ProBNP: 7,103 pg / ml). Of these, 52.6% with non-preserved left ventricular ejection fraction (LVEF) (<50%) and 56.6% with right ventricular (RV) dysfunction. 26.3% died during a mean follow-up of 35.8 months. Survival in patients with BI≤21,8Ω was lower, globally and in the subgroups of patients without preserved LVEF and with RV dysfunction, P<.008). In the multivariate analysis, a BI≥21.8Ω was an independent survival factor (HR: 0.242; 95% CI: 0.86-0.681; P=.007).ConclusionsBI values measured with IVOL may be an independent predictor of long-term mortality in patients hospitalized for acute HF. This prognostic value is maintained in patients without preserved LVEF function and with RV dysfunction.Copyright © 2024 The Authors. Published by Elsevier España, S.L.U. All rights reserved.
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