Goal-directed use of balanced solutions for laparoscopic surgery in obese patients
DOI:
https://doi.org/10.14739/2310-1210.2018.4.137102Keywords:
obesity, laparoscopic surgery, fluid therapy, solutionsAbstract
Modern guidelines for infusion therapy in laparoscopic surgery of patients with obesity are ambiguous due to insufficient number of clinical researches.
The aim of our work was to evaluate the effect of goal-directed infusion therapy with balanced solutions on hemodynamics, electrolyte balance, renal function and incidence of perioperative complications of laparoscopic surgery in obese patients.
Materials and methods. The study included 54 obese patients (BMI >30 kg/m2) who were performed laparoscopic surgery in case of the diaphragmatic hernia, colon tumors, postoperative ventral hernia and morbid obesity. In the group A (n = 26) goal-directed infusion therapy by balanced solutions Gelaspan and Sterofundin (B. Braun, Germany) was used. Impedance measuring technology using the monitor Utas 300 (Ukraine) was used to determine the target stroke volume (SV). In the group B (n = 28) infusion therapy was performed by unbalanced solutions (6 % HES and 0.9 % NaCl), focusing on fluid deficiency according to changes in blood pressure (BP), heart rate (HR), and diuresis. The incidence of hypotension and total volume of infusion therapy (TVIT) were evaluated intraoperatively, changes in BP and HR were compared. After surgery diuresis, blood Na+, K+, Cl– and creatinine concentrations, diuretic use frequency and incidence of cardiac, respiratory, hemorrhagic and infectious complications were controlled. Statistical analysis was performed using the Statistica for Windows software version 6.0.
Results. The incidence of hypotension in the group B was almost 2 times more than in the group A (P < 0.05). At the stage after the trachea intubation in the group B BP decreased by 16 % and the HR increased by 25 % from the baseline levels (P < 0.05), in group the A the values of BP and HR remained unchanged (P > 0.05). Intraoperative TVIT in the group B was 23 % higher due to crystalloid, and diuresis intensity was twice less than in the group A (P < 0.05). Concentrations of electrolytes and creatinine blood level did not change significantly in the study groups. After surgery in the group B 25 % of patients were prescribed diuretic and in the group A diuretic was not prescribed in any case (P < 0.05). In-hospital mortality in both groups was zero, no serious complications were observed.
Conclusions. Goal-directed infusion therapy with balanced solutions in laparoscopic surgery in obese patients halved the incidence of intraoperative hemodynamic instability, reduces the volume loading of crystalloids by 23 % during surgery and provides adequate perioperative diuresis without additional stimulation.
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