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  • Title: Urodilatin: a better natriuretic peptide?
    Author: Vesely DL.
    Journal: Curr Heart Fail Rep; 2007 Sep; 4(3):147-52. PubMed ID: 17883990.
    Abstract:
    The kidney natriuretic peptide urodilatin (ie, ularitide) decreases pulmonary capillary wedge pressure (PCWP) but does not cause diuresis in persons with congestive heart failure (CHF). Thirty-three percent of patients with CHF treated with 30 ng/kg/min ularitide develop hypotension with systolic blood pressures below 90 mmHg. Nesiritide and atrial natriuretic peptide lower PCWP and cause hypotension. They do not produce diuresis or natriuresis in patients with CHF. The best natriuretic peptide for treating CHF is the cardiac hormone vessel dilator which decreases PCWP and decreases systemic and pulmonary vascular resistance while simultaneously increasing cardiac output and cardiac index. What makes the vessel dilator markedly better than atrial natriuretic peptide, nesiritide, and ularitide for treatment of CHF is that it enhances sodium excretion fivefold and causes a fivefold enhanced diuresis in patients with CHF with its biologic effects lasting over 6 hours compared with less than 30 minutes for the above peptides.
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