During major surgeries optimal intravenous fluid administration is essential , conventional method may cause fluid overload , increased extravascular Lung water can lead to postoperative cardio-respiratory complications , this study was designed to detect immediate postoperative EVLW with Lung Ultrasonography in patients receiving Central venous pressure Guided and Pleth variability Index (PVI) guided fluids intraoperatively .
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Extravascular Lung Water detection
Timeframe: End of surgery upto 1 hour