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  • Title: [Hemodynamic effects of dobutamine in hyperkinetic septic shock treated with norepinephrine].
    Author: Lejus C, Blanloeil Y, François T, Michel P, Pinaud M, Desjars P.
    Journal: Ann Fr Anesth Reanim; 1991; 10(1):31-7. PubMed ID: 2008972.
    Abstract:
    A prospective study of the haemodynamic effects of dobutamine was carried out in six men and four women suffering from hyperkinetic septic shock, already treated with noradrenaline and dopamine. All ten patients had septic shock, defined as a mean arterial blood pressure of less than 70 mmHg and an urine output under 15 ml.h-1, persisting despite fluid loading, associated with positive blood cultures, increased white blood cell counts, and a septic area. Initial treatment consisted in fluid loading, so as to increase cardiac output whilst keeping pulmonary wedge pressure (Ppw) between 8 and 10 mmHg. Dopamine was then added, up to a dose of 15-20 micrograms.kg-1.min-1, in an attempt to improve coronary and renal blood flows. In patients in whom this failed, the amounts of dopamine were then decreased, down to 3 micrograms.kg-1.min-1, and replaced by noradrenaline. When patients had as steady cardiac index (CI) greater than 3 l.min-1.m-2 and a systemic arterial resistance index (RsaI) of less than 1,800 dyn.s.cm-5.m-2 for more than 60 min, they were included in the protocol. Dopamine was then replaced by increasing doses of dobutamine (0, 5, 7.5, 10, 15 and again 0 micrograms.kg-1.min-1). The usual haemodynamic parameters were measured and calculated once a steady state had been obtained at each dose (within 20 to 30 min). Ppw was kept between 8 and 10 mmHg by fluid loading with a 4% albumin solution. At the beginning of the study, patients had a mean blood pressure of 78 +/- 6 mmHg, a CI of 4.8 +/- 1.5 l.min-1.m-2 and a RsaI of 1,285 +/- 341 dyn.s.cm-5.m-2 RsaI.(ABSTRACT TRUNCATED AT 250 WORDS)
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