Exploring the predictive and evaluative value of various indicators of bedside critical renal ultrasound in critically ill patients with acute kidney injury (AKI)

This study aims to perform bedside renal ultrasound examinations on critically ill patients admitted to the ICU (including sepsis, respiratory failure, shock, multiple trauma, etc.) and prospectively observe the relationship between ultrasound parameters and the occurrence and progression of AKI, in conjunction with traditional renal function indicators. This will provide clinicians with a rapid, non-invasive, and visual examination tool at the bedside for early diagnosis and treatment of AKI.

Inclusion Criteria:

• Age ≥ 18 years and ≤ 70 years
• Criteria for sepsis patients

Exclusion Criteria:

• Pregnant women.
• Patients with malignant tumors, severe heart failure, chronic renal insufficiency, end stage renal disease, kidney transplantation.

Criteria for sepsis patients: Clear infection focus, Sequential Organ Failure Assessment (SOFA) score ≥ 2. Criteria for septic shock patients: Despite active fluid resuscitation, patients still require vasoactive drugs to maintain blood pressure, with arterial blood lactate level ≥ 2mmol/L. Other critically ill patients include those with shock of various causes,