Changes in IVCD were of greater magnitude than those of PVP (average change from predialysis: -58 ± 30% vs -28 ± 21% P< 0.001). IVCD appeared to track better ultrafiltration volume (P< 0.01) and hemoconcentration (P< 0.05) than PVP. IVCD discriminated better ultrafiltration volumes ≤ 500 mL or ≤ 750 mL than PVP (AUC 0.80 vs 0.62, and 0.80 vs 0.56, respectively both P< 0.01). Mean ultrafiltration volume was 2102 ± 667 mL. PVP was validated as a surrogate for CVP. We analyzed 30 hemodialysis sessions from 20 patients. Changes in IVCD and PVP were compared at each timepoint with ultrafiltration volumes. IVCD and PVP were measured simultaneously just before dialysis, 3 times during dialysis and immediately after dialysis. Central venous pressure (CVP) and peripheral venous pressure (PVP) were measured before and after hemodialysis. METHODS AND RESULTS: Patients with stable hemodialysis and with systolic or diastolic dysfunction were studied. In this study we aimed to compare changes in inferior vena cava diameter (IVCD) with venous pressure following manipulation of volume status during ultrafiltration in patients with cardiac dysfunction. Ibarra-Marquez ND, Moreno-Villagomez J, Gudiño-Bravo P, Arias-Godinez JA, Lopez-Gil S, Madero M, Rao VS, Mebazaa A, Burkhoff D, Cowie MR, Fudim M, Damman K, Borlaug BA, Testani JM, Ivey-Miranda JB et al., 2022, Changes in the Inferior Vena Cava Are More Sensitive Than Venous Pressure During Fluid Removal: A Proof-of-Concept Study., J Card FailīACKGROUND: Congestion is central to the pathophysiology of heart failure (HF) thus, tracking congestion is crucial for the management of patients with HF. Posada-Martinez EL, Cox ZL, Cano-Nieto MM,
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