TIME COURSE OF HUMAN ATRIAL-NATRIURETIC-FACTOR RELEASE DURING CARDIOPULMONARY BYPASS IN MITRAL-VALVE AND CORONARY-ARTERY DISEASED PATIENTS

被引：9

作者：

CURELLO, S

CECONI, C

DEGIULI, F

CARGNONI, A

ALFIERI, O

PARDINI, A

MARZOLLO, P

MASTROPIERO, R

FERRARI, R

机构：

[1] Division of Cardiology, University of Brescia

[2] Intensive Care Unit, Spedali Civili of Brescia, Brescia

来源：

EUROPEAN JOURNAL OF CARDIO-THORACIC SURGERY | 1991年 / 5卷 / 04期

关键词：

ATRIAL NATRIURETIC FACTOR; CARDIOPULMONARY BYPASS; HEART FAILURE;

D O I：

10.1016/1010-7940(91)90031-E

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

We determined the time-course of the release of atrial natriuretic factor (ANF) during cardiopulmonary bypass (CPB) in six patients undergoing coronary artery bypass (CAD) and eight patients undergoing valve replacement for mitral stenosis (MS). Before CPB, the arterial ANF was significantly higher in MS patients than in CAD patients (243 +/- 38 and 29 +/- 5.8 pg/ml respectively, P < 0.01). With the onset of CPB, the acute pressure unloading of the atria induced a significant, rapid decrease of ANF only in MS patients (- 64% of pre-CPB value at 5 min) and no major changes in CAD patients. Clamping of the aorta induced a further progressive reduction of ANF release to almost zero in both groups. Readmission of coronary flow to the empty atria with declamping resulted in an increase in the plasma level of ANF in both groups to reach the concentration present in MS patients before CPB. After CPB, the ANF levels decreased in CAD patients while remaining elevated in MS patients. These data suggest that ANF release from human atria depends on atrial filling pressure and other unknown factors.

引用

页码：205 / 210

页数：6

共 50 条

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