Silvia Crespo-Aznárez, Department of Internal Medicine, Hospital Clínico Universitario “Lozano Blesa”; Aragon Health Research Institute (IIS Aragón); Zaragoza, Spain
Marta Sánchez-Marteles, Department of Internal Medicine, Hospital Clínico Universitario “Lozano Blesa”; Aragon Health Research Institute (IIS Aragón); Zaragoza, Spain
Amelia Campos-Sáenz de Santamaría, Department of Internal Medicine, Hospital Clínico Universitario “Lozano Blesa”; Aragon Health Research Institute (IIS Aragón); Zaragoza, Spain
Vanesa Garcés-Horna, Department of Internal Medicine, Hospital Clínico Universitario “Lozano Blesa”; Aragon Health Research Institute (IIS Aragón); Zaragoza, Spain
Claudia Josa-Laorden, Department of Internal Medicine, Hospital Clínico Universitario “Lozano Blesa”; Aragon Health Research Institute (IIS Aragón); Zaragoza, Spain
Ignacio Giménez-López, Aragon Health Research Institute (IIS Aragón); Instituto Aragonés de Ciencias de la Salud (IACS); Facultad de Medicina, University of Zaragoza; Zaragoza, Spain
Juan Ignacio Pérez-Calvo, Department of Internal Medicine, Hospital Clínico Universitario “Lozano Blesa”; Aragon Health Research Institute (IIS Aragón); Instituto Aragonés de Ciencias de la Salud (IACS); Zaragoza, Spain
Jorge Rubio-Gracia, Department of Internal Medicine, Hospital Clínico Universitario “Lozano Blesa”; Aragon Health Research Institute (IIS Aragón); Zaragoza, Spain
Nerea Yanguas-Barea, Department of Radiology, Hospital Clínico Universitario “Lozano Blesa”. Zaragoza, Spain

Introduction: Renal dysfunction and heart failure (HF) are closely intermingled, even though their pathophysiology is not fully understood. Recently, abdominal congestion, through an increase of intra-abdominal pressure (IAP), has been proposed as a novel and important factor in cardiorenal interactions. In this study, we postulated that IAP is linked to renal function and diuretic response in acute heart failure (AHF) patients. Objectives: The objectives of this study were to analyze whether IAP variations in AHF patients are associated with changes in renal function and diuretic response during the first 72 h of admission. Methods: The prospective, observational, and single-center cohort study in AHF patients admitted at the Internal Medicine department. Multiparametric congestion assessment, including X-rays, point of care ultrasoung, serum biomarkers and IAP, will be performed during the first 72 h. Conclusions: We aim to broaden the knowledge about IAP changes and its correlation with renal function and diuretic response in patients admitted with AHF.

Keywords: Intra-abdominal pressure. Cardiorenal syndrome. Congestion. Diuretic response.