Norepinephrine Infusion Combined With Goal-directed Fluid Therapy in Patients Undergoing Kidney Transplantations

Norepinephrine will be administered intravenously at a rate of 0.06 µg/kg/min, followed by the implementation of fluid therapy guided by SVV until reaching our target. In instances where SVV ≤ 13%, indicative of adequate effective circulating blood volume, the fluid infusion rate will be adjusted to 1 ml/kg/h. Conversely, if SVV \> 13%, denoting inadequate effective circulating blood volume, a rapid infusion of 1 ml/kg of crystalloid fluid will be administered over 2 minutes, with subsequent observation of fluid reactivity after a further 2-minute interval. This process is reiterated until SVV ≤ 13% is attained. Should SVV \> 13% recurs during surgery, the aforementioned intervention is repeated.

Anesthesiologists will rely on their clinical expertise and intraoperative circulatory hemodynamic assessment to regulate fluid infusion rates and administer medications as necessary