Haemodynamic and renal effects of urodilatin bolus injections in patients with congestive heart failure.

Abstract:

:Urodilatin (ANF(95-126)) is an analogue of the atrial natriuretic factor (ANF(99-126)), which has been isolated from human urine. Recently we have shown in healthy volunteers, that intravenous bolus injections of synthetic urodilatin produce more pronounced reductions of pulmonary arterial pressure than ANF(99-126). To compare haemodynamic and renal effects of synthetic urodilatin with those of ANF(99-126) in congestive heart failure (CHF), 12 patients (66.3 +/- 1.4 years) received either two high dose intravenous bolus injections of 4 micrograms kg-1 bw Urodilatin (URO) at a 30 min interval (n = 6) or the same doses of ANF(99-126) (n = 6). Prior to i.v. URO, no URO immunoreactivity was found in human plasma (specific RIA, no crossreactivity to ANF). Similar to ANF, the increase in diuresis (1.4 +/- 0.7 to 3.7 +/- 1.6 ml min-1) and natriuresis (169 +/- 114 to 430 +/- 197 mumol min-1) was moderate after URO in CHF. During the 90 min study period, mean plasma cyclic GMP levels increased much more after URO (by 53.4 +/- 15.1 nM) than after ANF (by 13.1 +/- 3.0 nM; P = 0.04). In contrast to ANF, i.v. bolus injections of URO produced sustained haemodynamic effects in CHF lasting up to 90 min: The average (0-90 min) reduction of systemic vascular resistance was more pronounced after URO (-578 +/- 148) than after ANF (-204 +/- 65 dyn*s*cm-5, P = 0.04).(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Eur J Clin Invest

authors

Kentsch M,Ludwig D,Drummer C,Gerzer R,Müller-Esch G

doi

10.1111/j.1365-2362.1992.tb01427.x

keywords:

subject

Has Abstract

pub_date

1992-10-01 00:00:00

pages

662-9

issue

10

eissn

0014-2972

issn

1365-2362

journal_volume

22

pub_type

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