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| Name | Class |
|---|---|
| Beijing Tsinghua Changgeng Hospital | OTHER |
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The aim of this study is to investigate the changes in renal regional oxygen saturation (rSO2) monitored by near-infrared spectroscopy (NIRS) and its relationship with the occurrence of postoperative AKI.
Postoperative acute kidney injury (AKI) is a severe complication after liver resection and contributes to increased morbidity and mortality.
Advanced age reduces renal autoregulatory capacity due to physiological and functional changes, thus render the elderly to suffer postoperative AKI and probably the consequent chronic kidney disease. Thus, it is essential to identify those patients at high risk to develop postoperative AKI to optimize perioperative prevention and protection strategies.
Despite the multiple risk factors and potential mechanisms that have been identified, the diagnosis of postoperative AKI depending on serum creatinine changes have been delayed for early identification of postoperative AKI. It is of great interest to develop target strategies for close motoring of renal function.
This study is a prospective cohort study to investigate the associations between intraoperative renal desaturation measured by NIRS and postoperative AKI. The investigators intend to access the optimal threshold values of renal rSO2 for predicting postoperative AKI. Desaturation of renal rSO2 will be defined by the severity and duration of NIRS values during the surgical process. The principal clinical outcome of the study is postoperative AKI, defined as an absolute increase in serum creatinine of 0.3 mg/dL within 48 hours or a 1.5-fold increase from preoperative baseline within seven days after surgery, according to the Kidney Disease: Improving Global Outcomes (KDIGO) criterion.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| elderly patients following liver resection | elderly patients (aged ≥60 years) scheduled for any type of liver resection due to benign or malignant hepatobiliary diseases |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Near-infrared spectroscopy | Device | Before the induction of anesthesia, NIRS sensors were placed on both sides of the flank area that overlies the kidney to monitor renal SO2, whose alteration trends over time during operation will be recorded and evaluated in later analysis. |
| Measure | Description | Time Frame |
|---|---|---|
| Postoperative acute kidney injury | Postoperative acute kidney injury is defined according to the KDIGO criterion | Postoperative 7 days |
| Measure | Description | Time Frame |
|---|---|---|
| Death before and 30 days after discharge | Collection of clinical data in the medical record and follow-up update through telephone | 30 days after discharge |
| Length of hospital stay | Collection of clinical data in the medical record |
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Inclusion Criteria:
Exclusion Criteria:
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Patients older than 60 years who intend to receive elective hepatectomy surgeries
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| Name | Affiliation | Role |
|---|---|---|
| Weidong Mi, PhD | Chinese PLA General Hospital | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Chinese PLA General Hospital | Beijing | Beijing Municipality | 100853 | China |
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| ID | Term |
|---|---|
| D019265 | Spectroscopy, Near-Infrared |
| ID | Term |
|---|---|
| D003952 | Diagnostic Imaging |
| D019937 | Diagnostic Techniques and Procedures |
| D003933 | Diagnosis |
| D013057 | Spectrum Analysis |
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| Postoperative 30 days |
| D002623 |
| Chemistry Techniques, Analytical |
| D008919 | Investigative Techniques |