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  • 1
    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 Three study periods each of 2 h with LDD present, withdrawn and restarted.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 Urine volume fell by 40 % (p 〈 0.05) when dopamine was withdrawn.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
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Intensive care medicine 14 (1988), S. 227-231 
    ISSN: 1432-1238
    Keywords: Central vein catheter ; Bacteraemia ; Catheter replacement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In 440 critically ill patients, the association between different central vein catheter insertion sites, the duration of catheter insertion and catheter-associated sepsis was examined. Of 780 catheter tips studied, 19% were colonized by microorganisms. The incidence of colonization varied with the different insertion sites. The lowest percentage of colonized catheters occurred with catheters inserted via the subclavian vein (15%) and the highest, at the femoral vein insertion site (34%,p〈0.01). The percentage of catheters colonized increased as the duration of insertion increased, at all insertion sites studied. Catheter colonization was closely related to the development of bacteraemia and was associated with approximately 10% of colonized catheters. Our results suggest that the subclavian site is associated with the lowest infective complication rate. To minimize catheter associated sepsis, catheters at all insertion sites should be used with parsimony and only kept in place for the minimum amount of time that their continuing use is necessary.
    Type of Medium: Electronic Resource
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