الفهرس 
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Abstract
This prospective observational research was undertaken at El Minia s University Hospital throughout the period from 2003 2021 to Augest 2022.
There were a total of patients diagnosed, ranging in age from 20 to 60 years old, both sexes, who were admitted to our surgery intensive care unit (Embedded sim) with ASA physical status II or III, meaning that they could breathe on their own, lay supine, and have a central venous tracheostomy (CVC) placed, but still needed close surveillance and evaluation of hypervolemia status.
The goals of this study were to (1) determine the relationship among both Imperfect vena cava and Popular carotid artery diameters and central venous pressure, and (2) determine the effect of fluid overload on IVC and Widely accepted carotid artery diameters in predicting intra venous means that a significant in critically ill patients.
On admission, before the fluid bolus, half an hour after the fluid bolus, and 1, 2, 3, 6, 12, 24, and 48 hours later, the following measures (Bp, HR, IVC maximal, IVC max, CCA diameters, IVC CI, and CVP) were collected.
The present research found a positive relationship between CVP and both the maximum and minimum diameters of the inferior vena cava (IVC) and the common carotid artery, and a negative relationship between CVP and the internal carotid intima media thickness (CI).
We found that a larger IVC max diameter was more predictive of a low CVP 8 cmH2O than a smaller IVC CI.
The mean values of MAP, CVP, CCA, and IVC max/min diameters were all found to rise, whereas the mean values of HR and IVC CI were found to decrease, as was the HR/IVC CI ratio.
It was determined that ultrasonography of the superior vena cava and Common carotid artery might be utilised as a non invasive, quick, and easy adjuvant approach to monitor intravascular size and guide fluid response in critically sick patients undergoing intensive care.