الفهرس 
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Abstract
The cornerstone of AKI management especially in pre-renal AKI, AKI patients with multiple comorbidities and in critical cases is proper volume status control. The Aim of this study : study the role of using bedside ultrasonography to measure IVC diameter variations during respiration during assessment of volume status in AKI patients and its impact on proper volume state management and improving renal function. Materials and methods : The present study was carried out on eighty -three AKI patients presented to Mansoura university nephrology unit suffering from AKI or AKI on top of CKD. patients were divided to two groups according to the method of volume status assessment whether it will depend mainly on IVC measurement or on clinical assessment. Results : we found moderate agreement between the two methods of assessment of volume status (IVC versus clinical method) in first group of patients. The two methods agreed on 42 patients, while disagreed on 10 patients. Moreover, there was nine patients in the first group in our study have cvp we found that there is statistically significant higher post-treatment cvp than pre-treatment. also, statistically significant higher IVC measurement and lower IVC-CI post-treatment as compared to pre-treatment level in the first group. Mostly due to improvement of volume depletion. Also found a statistically significant change in IVC diameter and IVC-CI in response to fluid given or diuretics. Discussion : we found that no statistically significant difference in renal outcome between the two groups. Complete recovery occurred in 75% vs. 71% in group 1 and group 2, respectively. Partial recovery occurred in 13.5% vs. 19.4% in group 1 and group 2, respectively. Non-recovery occurred in 11.5% vs. 9.7% in group 1 and group 2, respectively. while there was statistically significant higher post treatment RR in group 2 than in group 1.