Renal Function Test, Urine Output, Lactate Level Clinical Trial
Official title:
The Effect of Adding Dopamine Infusion to Noradrenaline Infusion Combined With Restrictive Hydration on Renal Function and Tissue Perfusion During Open Abdominal Surgeries
This study was designed to assess the effect of adding dopamine infusion in addition to restrictive hydration combined with noradrenaline infusion on intraoperative serum lactate levels as an indicator for tissue hypo perfusion and renal function in comparison to restrictive hydration combined with noradrenaline infusion only and standard hydration during open abdominal surgeries.
One hundred and twenty patients were randomly assigned into three groups (dopamine
norepinephrine group, restrictive hydration group and liberal hydration group) undergoing
open abdominal procedures (radical cystectomy and hemi colectomy). In Restrictive group
(n=40): Ringer's solution was infused at a rate of 1 ml.kg.h-1 until the basic part of the
surgery (tumor resection) is completed to be followed by 3 ml.kg.h-1 of Ringer's solution
until the end of surgery. Noradrenaline infusion (0.07mcg.kg.min-1) was combined with fluids
until the end of surgery. In Liberal group (n=40): the conventional fluid replacement was
introduced according to maintenance, deficit for the first 3 hours (hours fasting x body
weight) and 3rd space loss (estimated between 8-10 ml.kg.h-1).
The outcome to be assessed was serial measurements of serum lactate intraoperatively and
immediate postoperatively as an index of tissue perfusion, in addition to blood pressure,
heart rate and oxygen saturation.
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