ISSN:
1432-1238
Keywords:
Key words Dopamine
;
Haemodynamic
;
Renal
;
Sepsis
;
Shock
;
Noradrenaline
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract Objective: To investigate whether low-dose dopamine (LDD) has a significant effect on systemic haemodynamic variables and renal function when used in conjunction with high-dose noradrenaline in optimally volume-resuscitated patients with septic shock. Design: A prospective clinical study in which each patient acted as his/her own control. Setting: Teaching hospital Intensive Care Unit. Patients: Twenty-one patients with septic shock treated with high-dose noradrenaline were studied, 17 patients completed the study. Interventions: Fluid loading to an optimal left ventricular stroke work index (LVSWI) whilst on more noradrenaline than 10 mcg/min and dopamine of 2.5 mcg/kg per min. Three study periods each of 2 h with LDD present, withdrawn and restarted. During each period a complete haemodynamic profile and measurement of urine flow rate, creatinine clearance and sodium excretion was performed. Measurement and results: Removing and restarting LDD caused marked changes in cardiac index (CI, 17 % fall, p 〈 0.01: 23 % rise, p 〈 0.01), stroke volume (SV, 11 % fall, p 〈 0.05: 14 % rise, p 〈 0.05) and systolic blood pressure (SBP, 11 % fall, p 〈 0.05: 14 % rise, p 〈 0.05). Urine volume fell by 40 % (p 〈 0.05) when dopamine was withdrawn. Significant reductions in sodium excretion (p 〈 0.05) and fractional sodium excretion (p 〈 0.05) also occurred on stopping LLD. Changes in creatinine clearance were not statistically significant. Conclusion: Low-dose dopamine causes significant increases in SBP SV, cardiac output and urine flow during treatment with noradrenaline.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s001340050616
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