Heparin-coated left heart bypass: renal function and hormonal response.

Details

Serval ID
serval:BIB_EE6DCB74180F
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Heparin-coated left heart bypass: renal function and hormonal response.
Journal
International Journal of Artificial Organs
Author(s)
Weiss B.M., von Segesser L.K., Vetter W., Gautschi K., Pasch T.
ISSN
0391-3988 (Print)
ISSN-L
0391-3988
Publication state
Published
Issued date
1991
Peer-reviewed
Oui
Volume
14
Number
12
Pages
792-799
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
The effect of partial (50 ml/min/kg) left heart bypass (LHBP) on renal function, plasma renin activity (PRA), aldosterone, arginine vasopressin and atrial natriuretic peptide (ANP) response was studied in ten anesthetized, open-chested mongrel dogs (weight 23-50 kg) over a period of 6 h. Standard equipment with systemic heparinization (control), initially 300 IU/kg, was employed in five dogs, and heparin-coated equipment without additional heparin in the other five (heparin coated). Urine was continuously collected through a transurethral catheter. Urine samples and pulmonary artery blood samples for hormonal assays were taken at preset intervals before and during LHBP. The results in each group were summarized as median (25th-75th) and compared using the Mann-Whitney U test. In the control group higher blood loss required higher volume substitution. Urine output was maintained in heparin coated and slightly decreased at 3-4 h in control LHBP. Creatinine clearance at 3-5 h and free-water clearance at 3-6 h were significantly higher with heparin-coated LHBP. PRA, aldosterone and vasopressin peaked at 1-2 h of LHBP similarly in both groups, not exceeding the values before perfusion. PRA and aldosterone response was sustained during 6 h and the percentage changes corrected for hemodilution indicated a stronger response with standard equipment. Vasopressin concentrations were slightly but significantly higher in the control group at 1 and 6 h of perfusion. Corrected for hemodilution, vasopressin percentage changes were not different in the two groups. ANP, despite atrial unloading, rose similarly in both groups. There was a tendency to poorly sustained ANP response (control greater than heparin-coated) after 6 h of perfusion.(ABSTRACT TRUNCATED AT 250 WORDS)
Keywords
Aldosterone/blood, Animals, Arginine Vasopressin/blood, Atrial Natriuretic Factor/blood, Coronary Artery Bypass, Dogs, Heart, Artificial, Heparin/pharmacology, Hormones/blood, Kidney/drug effects, Renin-Angiotensin System/drug effects
Pubmed
Web of science
Create date
14/02/2008 14:17
Last modification date
20/08/2019 16:15
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