Background: Renal function frequently deteriorates in decompensated heart failure (DHF) patients, and one determinant is reduced renal blood flow. This may, in part, result from low cardiac output (CO), reduced mean arterial pressure (MAP), and venous congestion. The combined impact of both venous congestion (elevated right atrial pressure [RAP]) and low MAP are reflected by a reduced pressure gradient MAP-RAP.
View Article and Find Full Text PDFAims: Ularitide is a synthetic form of urodilatin, a natriuretic peptide produced in the kidney with vasodilating, natriuretic, and diuretic effects, that offers promise for the management of decompensated heart failure (DHF). We assessed the efficacy and safety of ularitide in treating patients with DHF.
Methods And Results: In this Phase II randomized, double-blind, placebo-controlled trial, 221 DHF patients received either placebo (n=53) or ularitide at 7.
Background: Urodilatin (ularitide), a natriuretic peptide, is produced within the kidneys. The aim of this study was to define the role of 24-hour intravenous infusions of urodilatin in the treatment of decompensated chronic heart failure (DHF).
Methods: In this randomized, double-blind, ascending-dose safety study, 24 patients with DHF (cardiac index 1.
Background And Aim: Whether the CK-MB reducing effect of ischemic preconditioning (IP) by unstable angina within 24 to 48 hours before CABG is achieved by early or by delayed preconditioning of left ventricular myocardium in humans is unknown. We investigated whether IP is associated with phosphorylation of p38 MAPK (characteristic for early preconditioning) or with increased protein expression of HSP-72 (characteristic for delayed preconditioning) at the time of CABG in patients.
Methods: Nineteen patients were grouped according to the occurrence of ischemic episodes within 48 hours before CABG.
Background: Myocardial hibernation and stunning are characterized by depressed cardiac function in the presence of reduced or normal coronary blood flow. The underlying biochemical mechanisms are widely unknown and only limited data are available in human hearts.
Methods And Results: Left ventricular transmural myocardial biopsies were obtained from normal and dysfunctional segments of patients undergoing coronary bypass surgery.