A study to compare Plethysmography Variabilty Index based Goal Directed Fluid Therapy versus Conventional Liberal Fluid administration in adult patients undergoing elective gynaecological surgeries.

Goal Directed fluid therapy aims to tailor fluid administration to the individual patient’s real time physiological needs, using various objective haemodynamic parameters among which plethysmography variability index has emerged as a promising, non invasive and continous monitoring tool derived from the pulse oximetry waveform. The aims is to compare effect of Plethysmography Variability Index based goal directed fluid therapy vs conventional liberal fluid therapy in terms of  mean arterial pressure during gynaecological surgery.