Basic Hemodynamic Monitoring Reliability During Percutaneous Nephrolithotomy.

"After attaching all standard monitors (ECG, NIBP, pulse oximeter) and the COP bio-impedance monitor recording basal data (COP, CI, SV, CPI, Do2, DO2I, SVR, SVV.~During sitting position intrathecal anesthesia was conducted in the sitting position under complete aseptic condition using heavy bupivacaine 15mg (3ml) plus 10 mic dexamedatomedine 25G needle after 2 ml Lidocaine skin infiltration. lithotomy position till anesthesia level documented T4 and fixed and lower urinary tract endoscopy then shifting the patient to prone position and after adjustment of the prone position precautions 2 bellows one under the chest and one under the pelvis with pliable free moving abdomen jell ring under the patient head knees and in front of heels, then the basal data recording and after that data recording every 10 minutes till end of the operative procedure. Blood sampling at basal, postoperative"