Intraoperative Dialysis in Liver Transplantation
- Conditions
- Multi-organ FailureLiver FailureAcute Kidney Disease
- Interventions
- Device: Continuous renal replacement therapy (CRRT)Procedure: Standard intraoperative support
- Registration Number
- NCT01575015
- Lead Sponsor
- University of Alberta
- Brief Summary
Patient with liver failure waiting for liver transplantation are often hospitalized and commonly supported in an intensive care unit prior to surgery. These patients are sick, and in addition to the complications of a failing liver, other organs such as the kidneys often fail as well. As a consequence, these patients are at an increased risk for complications related to their kidney failure during their liver transplantation procedure. One potential method to diminish the risk of these complications is to provide dialysis support to these patients during their liver transplantation in the operating theater in the form of continuous renal replacement therapy (CRRT). While this is increasingly being performed and is theoretically appealing, there is very little information to support this practice. In addition, the use of CRRT during surgery is not entirely without risk. The investigators have performed two preliminary studies on the use of CRRT during liver transplantation and our data would strongly support the need to conduct further higher-quality studies to better evaluate its feasibility, safety and usefulness. Our proposed study is for a randomized trial comparing the use of CRRT during surgery with standard supportive care in sick patients with liver failure scheduled to receive a liver transplantation.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- TERMINATED
- Sex
- All
- Target Recruitment
- 32
- Consent
- Adult (age > 18 years on the day of assessment of eligibility)
- Planned cadaveric orthotopic liver transplantation
- Pre-operative unadjusted (natural) Modification of End-Stage Liver Disease (MELD) score > 25.
- Pre-operative AKI, defined by a minimum RIFLE-RISK, AND/OR pre-operative estimated glomerular filtration rate (eGFR) <60 mL/min/1.73m2, calculated by the Modification of Diet in Renal Disease (MDRD) equation.
- Planned living-related donor liver transplantation
- Pre-operative potassium [K] > 4.5 mmol/L AND urine output < 100 mL in the 6 hrs preceding assessment of eligibility
- Pre-operative pH < 7.3
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Intraoperative renal support (CRRT) Continuous renal replacement therapy (CRRT) - Standard intraoperative support (no CRRT) Standard intraoperative support -
- Primary Outcome Measures
Name Time Method Number of patients adhering to the prescribed protocol Intra-operative (From the induction of anesthesia to trasnfer from the OR to the ICU, average 6-8 hours) Will be defined as the proportion of patients adhering to the prescribed protocol.
Number of patients with adverse events Intra-operative (From the induction of anesthesia to trasnfer from the OR to the ICU, average 6-8 hours) This will be defined by the proportion of patients experiencing intra-operative adverse events, serious adverse events and complications related to the study intervention.
- Secondary Outcome Measures
Name Time Method Fluid balance In-hospital (patients will be followed for duration of post-operative hospital stay, anticipated average 4 weeks post-operatively) Will be defined as the changes in fluid accumulation intra- and post-operatively.
Number of patients with post-operative graft dysfunction In-hospital (patients will be followed for duration of post-operative hospital stay, anticipated average 4 weeks post-operatively) Graft dysfunction will include post-operative ultrasonographic-evidence of vascular ischemia/occlusion or venous occlusion; biliary stricture, obstruction or anastomosis leak; primary non-function; biopsy-proven rejection; or need for surgical re-exploration for any reason.
Number of patients with post-operative kidney dysfunction From the date of liver transplant until the date of first documented outcome of interest, assessed until 90-days Will be defined as post-operative acute kidney injury, defined by RIFLE criteria; along with encompassing receipt of renal replacement therapy (RRT).
Length of stay From the date of liver transplant until the date of discharge from ICU/hospital Will include ICU and hospital lengths of stay
Mortality From the date of liver transplant until the date of first documented outcome of interest, assessed until 90-days Mortality through 90-days.
Number of patients readmitted to hospital within 90-days From the date of liver transplant after hospital discharge, until the date of first documented re-admission to hospital, assessed until 90-days Will be defined as hospital re-admission within 90-days of liver transplant for any cause.
Trial Locations
- Locations (1)
Division of Critical Care Medicine, University of Alberta Hospital
🇨🇦Edmonton, Alberta, Canada