EFFECTS OF BETA-BLOCKADE ON ENERGY-METABOLISM FOLLOWING BURNS

被引:45
作者
BREITENSTEIN, E [1 ]
CHIOLERO, RL [1 ]
JEQUIER, E [1 ]
DAYER, P [1 ]
KRUPP, S [1 ]
SCHUTZ, Y [1 ]
机构
[1] INST PHYSIOL,FAC MED,RUE BUGNON 7,CH-1005 LAUSANNE,SWITZERLAND
关键词
D O I
10.1016/0305-4179(90)90136-K
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
The purpose of this study was to compare the effects of propranolol administered either by i.v. infusion or by prolonged oral administration (4 days) during the first 3 weeks following burns. The resting metabolic rate (RMR) of 10 non-infected fasting burned patients (TBSA: 28 per cent, range 18-37 per cent) was determined four times consecutively by indirect calorimetry (open circuit hood system) following: (1) i.v. physiological saline; (2) i.v. propranolol infusion (2 μg/kg/min following a bolus of 80 μg/kg); (3) oral propranolol (40 mg q.i.d. during 4 ± 1 days); and (4) in control patients. All patients showed large increases in both RMR (144 ± 2 per cent of reference values) and in urinary catecholamine excretion (three to four times as compared to control values). The infusion of propranolol induced a significant decrease in RMR to 135±2 per cent and oral propranolol to 129±3 per cent of reference values. A decrease in lipid oxidation but no change in carbohydrate and protein oxidation were observed during propranolol administration. It is concluded that the decrease in RMR induced by propranolol was not influenced by the route of administration. The magnitude of the decrease in energy expenditure suggests that beta-adrenergic hyperactivity represents only one of the mediators of the hypermetabolic response to burn injury. © 1990.
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页码:259 / 264
页数:6
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