Study Status: NOT_YET_RECRUITING
Recruit Status: NOT_YET_RECRUITING
Study Type: OBSERVATIONAL
Official Title: To Examine Whether Urinary Partial Oxygen Pressure Measurements Are Indicative of the Postoperative Occurrence of Acute Kidney Injury (AKI) in Individuals Who Have Undergone Liver Transplantation
Brief Summary: Postoperative acute kidney injury (AKI) is a frequent occurrence among liver transplant recipients and results in considerable mortality and morbidity.
The delayed increase in plasma creatinine levels and its susceptibility to external influences, which are utilized in the current diagnostic criteria for AKI, contribute to diagnostic delays.
Therefore, numerous biomarkers, including KIM-1, NGAL, TIMP-2, and CYSTATIN C in plasma, along with urine partial oxygen pressure levels and NGAL, are currently under examination to identify acute kidney injury at its early stage.
It is well-established that the renal medulla is highly susceptible to hypoxia, which may consequently lead to acute kidney injury.
A range of studies have also demonstrated that urine partial oxygen pressure is capable of providing valuable insights into the oxygenation state of the renal medulla.
Although urine oxygen pressure measurement is not commonly used, unlike blood gas analysis, urine partial oxygen pressure measurement dates back to 1964.
Research among cardiopulmonary bypass patients suggests a correlation between urine partial oxygen pressure data and acute kidney injury.
Therefore, we hypothesize that monitoring urine partial oxygen pressure levels may offer insight into the development of acute kidney injury in liver transplant recipients.