Abstract
IntroductionGoal-directed therapy (GDT) has been shown to improve outcome when commenced before surgery. This requires pre-operative admission to the intensive care unit (ICU). In cardiac surgery, GDT has proved effective when commenced after surgery. The aim of this study was to evaluate the effect of post-operative GDT on the incidence of complications and duration of hospital stay in patients undergoing general surgery.MethodsThis was a randomised controlled trial with concealed allocation. High-risk general surgical patients were allocated to post-operative GDT to attain an oxygen delivery index of 600 ml min-1 m-2 or to conventional management. Cardiac output was measured by lithium indicator dilution and pulse power analysis. Patients were followed up for 60 days.ResultsSixty-two patients were randomised to GDT and 60 patients to control treatment. The GDT group received more intravenous colloid (1,907 SD ± 878 ml versus 1,204 SD ± 898 ml; p < 0.0001) and dopexamine (55 patients (89%) versus 1 patient (2%); p < 0.0001). Fewer GDT patients developed complications (27 patients (44%) versus 41 patients (68%); p = 0.003, relative risk 0.63; 95% confidence intervals 0.46 to 0.87). The number of complications per patient was also reduced (0.7 SD ± 0.9 per patient versus 1.5 SD ± 1.5 per patient; p = 0.002). The median duration of hospital stay in the GDT group was significantly reduced (11 days (IQR 7 to 15) versus 14 days (IQR 11 to 27); p = 0.001). There was no significant difference in mortality (seven patients (11.3%) versus nine patients (15%); p = 0.59).ConclusionPost-operative GDT is associated with reductions in post-operative complications and duration of hospital stay. The beneficial effects of GDT may be achieved while avoiding the difficulties of pre-operative ICU admission.
Highlights
Goal-directed therapy (GDT) has been shown to improve outcome when commenced before surgery
Post-operative GDT is associated with reductions in post-operative complications and duration of hospital stay
The beneficial effects of GDT may be achieved while avoiding the difficulties of pre-operative intensive care unit (ICU) admission
Summary
Goal-directed therapy (GDT) has been shown to improve outcome when commenced before surgery This requires pre-operative admission to the intensive care unit (ICU). The principal reason for this is likely to be the limited availability of intensive care unit (ICU) facilities, but there are safety concerns regarding the use of the pulmonary artery catheter to measure cardiac output [6]. In cardiac surgery, these problems have been addressed successfully by commencing GDT in the immediate post-operative period [7,8] and by using the oesophageal Doppler probe in place of the pulmonary artery catheter to measure cardiac output [8]. Use of the oesophageal Doppler probe to guide fluid administration during surgery is associated with improved outcome [9,10,11,12,13] the Doppler probe is not readily tolerated by conscious patients, restricting use to patients who are ventilated following surgery
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