Fluid Optimisation in Laparoscopic Colorectal Procedures

"In case of stroke volume variation (SVV) \>10% and SI and CI \>10% below the starting value, fluid challenge was performed with approximately 2 ml/kg of colloid over maximum of 5 minutes. The response was monitored.~If there was a fall in SVV and an increase in SI of \>10% and the SVV still \>10%, the second fluid challenge was performed.~If there was still a reduction in SVV after the second fluid challenge, but an increase in nSI \<10% and decrease in systemic vascular resistance (SVR), no additional fluids were given. Vasoactive drugs were used instead."