ivermectina stromectol precio CI indicates cardiac index; FF, filtration fraction; GFR, glomerular filtration rate; LMM, linear mixed model; PAH art, arterial PAH concentration; PAH ext, extraction of para aminohippurate; RBF, renal blood flow; RDO 2, renal oxygen delivery; RO 2 Ex, renal oxygen extraction; RVO 2, renal oxygen consumption; RVR, renal vascular resistance, SrvO 2, renal vein oxygen saturation