Natriuretic peptides and endothelin-1 in patients undergoing coronary artery bypass grafting.
Off-pump coronary artery bypass grafting (CABG) is an alternative to conventional CABG using cardiopulmonary bypass. Off-pump technique reduces the complications of CABG performed with extracorporeal circulatory assistance (Lancey et al. 2000; Mack et al. 2004a,b). The object of this study was to compare peri- and postoperative time courses of vasoactive peptides - atrial natriuretic poptide (ANP), brain natriuretic poptide (BNP) and endothelin-1 (ET-1) in off-pump versus on-pump CABG. 22 patients, who underwent on-pump (group A, n = 11) or off-pump CABG (group B, n = 11) were studied. The peri- and postoperative time courses of plasma ANP and BNP were similar in both groups. A statistically significant difference between ET-1 plasma level 2 h after surgery in the group A and ET-1 plasma level 2 h after surgery in the group B (2.46 + or - 1.14 pg/ml/Ht versus 0.74 + or - 0.09 pg/ml/Ht, p < 0.0001) was found. Different CABG techniques were not associated with significant changes in peri- and postoperative plasma ANP and BNP. By contrast, plasma ET-1 significantly rose in the group A 2 h after surgery, indicating endothelial damage.
Department of Laboratory Medicine, National Institute of Cardiovascular Diseases, Bratislava, Slovakia. katarina.danova@nusch.sk
K
K
Danová
I
I
Pechán
I
I
Olejárová
B
B
Líska
D000328:Adult; D000368:Aged; D009320:Atrial Natriuretic Factor / Q000097:blood*; D001026:Coronary Artery Bypass / Q000379:methods*; D019332:Endothelin-1 / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000097:blood* / Q000601:surgery*; D020097:Natriuretic Peptide, Brain / Q000097:blood*
D019332:Endothelin-1; D020097:Natriuretic Peptide, Brain; D009320:Atrial Natriuretic Factor