Effects of normothermia versus hypothermia on extravascular lung water and serum cytokines during cardiopulmonary bypass: A randomized, controlled trial

被引:43
作者
Honore, PM
Jacquet, LM
Beale, RJ
Renauld, JC
Valadi, D
Noirhomme, P
Goenen, M
机构
[1] Hop St Pierre, Gen Internal Care Unit, B-1340 Ottignies, Belgium
[2] St Luc Teaching Hosp, Cardiothorac Intens Care Unit, Brussels, Belgium
[3] Guys & St Thomas Hosp Trust, Adult Intens Care Unit, London, England
[4] Ludwig Inst Canc Res, Brussels Branch, Brussels, Belgium
[5] Catholic Univ Louvain, Expt Med Unit, B-1200 Brussels, Belgium
关键词
coronary surgery; normothermic bypass; extravascular lung water; serum cytokines; extravascular lung water/intrathoracic blood volume ratio;
D O I
10.1097/00003246-200110000-00009
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Objective: To evaluate the influence of perfusion temperature on the systemic effects of cardiopulmonary bypass (CPB), including extravascular lung water index (EVLWI), and serum cytokines. Design: Prospective, randomized, controlled study. Setting. Cardiothoracic intensive care unit of a university hospital. Patients. Patients undergoing elective coronary artery bypass grafting. Interventions. Twenty-one patients undergoing elective coronary artery bypass grafting were randomly assigned to receive either normothermic bypass (36 degreesC, n = 8) with intermittent antegrade warm blood cardioplegia (IAWBC), or hypothermic (32 degreesC, n = 13) CPB with cold crystalloid cardioplegia. Measurements and Main Results., Mean arterial pressure, heart rate, cardiac output, systemic vascular resistance, mean pulmonary arterial pressure, and pulmonary vascular resistance were determined at baseline, i.e., after induction of anesthesia but before sternal opening (T-1), at arrival in the intensive care unit (TO), and 4 hrs (M), 8 hrs (T8), and 24 hrs (T24) after surgery. EVLWI, intrathoracic blood volume index (ITBVI), and EVLW/ITBV ratio were obtained by using thermal dye dilution utilizing an arterial thermistor-tipped fiberoptic catheter and were recorded at T-1, T0, T4, T8, and T24. Serial blood samples for cytokine measurements were obtained at each hemodynamic measurement time point. Before, during, and after CPB, there were no differences in the conventional hemodynamic measurements between the groups. There were no changes in EVLWI up to T8 in either group. Furthermore, no change in the ratio EVLW/ITBW was observed between the groups at any time, further indicating the absence of a change in pulmonary permeability. Plasma levels of interleukin-6, tumor necrosis factor-alpha, and interleukin-10 increased during and after CPB, independently of the perfusion temperature. Conclusion., Normothermic CPB is not associated with additional inflammatory and related systemic adverse effects regarding cytokine production and EVLWI as compared with mild hypothermia. The potential temperature-dependent release of cytokines and subsequent inflammation has not been observed and normothermic CPB may be seen as a safe technique regarding this issue.
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收藏
页码:1903 / 1909
页数:7
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