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Clinical Trial Summary

Due to the rising incidence of renal failure and the improvement of organ transplantation technology, the shortage of donor organs has become one of the main problems limiting the development of kidney transplantation. Marginal donor is one of the important ways to extend the donor pool. Normothermic mechanical perfusion (NMP) is a new generation of organ preservation technology, which can maintain the blood supply and at the same time evaluate the marginal kidney function during the organ preservation. However, the clinical effect has not been proved. Hypothermic Machine Perfusion (HMP) is the mainstream organ perfusion technology. This study aims to compare the effectiveness of NMP with the HMP.


Clinical Trial Description

The main purpose of the study is to improve the utilization rate of marginal donors through normothermic perfusion, and reduce the incidence of infection, severe rejection and even graft failure caused by implantation of marginal donors. This study aims at the following aspects: 1. To compare the effects of two methods and perfusion parameters on the quality of marginal donors: normal temperature pulse perfusion and low temperature mechanical perfusion; 2. Explore the methods of evaluating the function of donor organs; 3. Exploring the effects of different mechanical perfusion methods and perfusion conditions on marginal donors; 4. The effect of broad-spectrum antibiotics on improving donor infection through different administration routes and different drug doses during perfusion and preservation. A single-center prospective randomized controlled study was used to compare the prognosis of renal transplantation between 50 patients with normothermic pulse perfusion and 50 patients with hypothermic mechanical perfusion who were enrolled in our hospital for allograft kidney transplantation. Assessment factors: 1. Donor parameters: age, sex, creatinine, diabetes, cause of death, length of stay in ICU, calcification of donor renal artery (CRP expression level) 2. Perfusion pressure, perfusion time, perfusion temperature, perfusion vessel resistance index 3. Receptor factors: age, gender, height, weight, BMI, cause of kidney disease (hypertension, diabetes glomerulonephritis, polycystic kidney disease), dialysis time (month), dialysis type (blood/peritoneum), HLA mismatch number, smoking, diabetes, hypertension, heart disease, hyperlipidemia, anemia, complication index (CCI), ASA score (>3 or ≤ 3), operation time, number of donor renal artery branches, number of donor renal vein branches, donor creatinine, cold ischemia time (mins), and the perfusion of the transplanted kidney ( judged by the fluorescence intensity after indocyanine green injection). Laboratory results: PRA (panel-reactive antibody), blood creatinine, estimated glomerular filtration rate (eGFR), blood lactate level, postoperative urine volume. Graft loss, culture result of irrigation solution (bacteria). Sample acquisition: obtaining the blood and urine samples of the recipient and measuring the expression level of globulin A in the serum. In the process of kidney transplantation, the donor's renal artery vessel wall and the recipient's external iliac artery vessel wall were obtained. The blood vessel wall was stained with calcification, CRP to evaluate the calcification of the donor and recipient vessels. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05743751
Study type Interventional
Source China-Japan Friendship Hospital
Contact Zhou Xiaofeng, MD
Phone 17310336871
Email 13911250201@139.com
Status Not yet recruiting
Phase N/A
Start date March 3, 2023
Completion date September 3, 2025

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