Living Donor Kidney Transplantation Research Articles

A case of non-traumatic rectus sheath hematoma in a post-kidney transplant patient undergoing catheter embolization during anticoagulation treatment for atrial fibrillation.

A 65-year-old man, a post living donor kidney transplant patient, was admitted to the intensive care unit (ICU) with a severe bacterial infection. He also tested positive for coronavirus disease and had a cough. On admission, heparin was administered for atrial fibrillation. On the third day of hospitalization, his general condition had recovered, and he was discharged from the ICU to the general ward. On the fourth day of hospitalization, he experienced abdominal pain, and a hard mass was palpated in the left lower abdomen. On the fifth day of hospitalization, contrast-enhanced computed tomography showed an extensive rectus sheath hematoma (RSH) extending from the left lower abdominal wall to the left side of the bladder, with extravasation from a small branch of the left inferior epigastric artery. Heparin was discontinued, and transcatheter arterial embolization was performed to control the bleeding. RSH is a rare disease, and cases of extensive hematoma in post-kidney transplant patients occur even less frequently. Patients taking anticoagulants and those with chronic kidney disease are at high risk for RSH, so physicians should be cognizant of this disease when these patients develop abdominal pain.

Treatment of allograft’ ureteral stones with percutaneous laser lithotripsy in a patient post-kidney-transplant: A case report

IntroductionUrolithiasis in transplanted kidneys is a rare complication. The management of urolithiasis in transplant patients is similar to that in the general population. Case presentationA 51-year-old man with end-stage renal failure due to diabetic nephropathy underwent ABO-compatible living-donor kidney transplantation using his younger sister as a donor. The postoperative clinical course was uneventful and the function of the transplanted kidney was excellent during follow-up. In late May 2022, the patient visited our institution with fever, malaise, and oliguria. The function of the transplanted kidney had decreased, with a serum creatinine level of 6.39 mg/dL. Computed tomography demonstrated allograft hydronephrosis and allograft distal ureteral stone. The patient was diagnosed with acute renal failure due to allograft distal ureteral calculi. Moreover, calculous pyelonephritis was also observed. A percutaneous allograft nephrostomy was performed followed by a percutaneous ureteral lithotripsy in early June 2022. The patient underwent an antegrade disposable flexible ureteroscopy, holmium laser lithotripsy, and basket extraction. All stone fragments were surgically removed. After the successful treatment, the allograft kidneys functioned well. ConclusionPercutaneous laser lithotripsy was successfully performed without complications.

Expanding the access to kidney transplantation: Strategies for kidney transplant programs.

Kidney transplantation is the most successful kidney replacement therapy available, resulting in improved recipient survival and societal cost savings. Yet, nearly 70 years after the first successful kidney transplant, there are still numerous barriers and untapped opportunities that constrain the access to transplant. The literature describing these barriers is extensive, but the practices and processes to solve them are less clear. Solutions must be multidisciplinary and be the product of strong partnerships among patients, their networks, health care providers, and transplant programs. Transparency in the referral, evaluation, and listing process as well as organ selection are paramount to build such partnerships. Providing early culturally congruent and patient-centered education as well as maximizing the use of local resources to facilitate the transplant work up should be prioritized. Every opportunity to facilitate pre-emptive kidney transplantation and living donation must be taken. Promoting the use of telemedicine and kidney paired donation as standards of care can positively impact the work up completion and maximize the chances of a living donor kidney transplant.

Live-donor kidney transplant outcome prediction (L-TOP) using artificial intelligence.

Outcome prediction for live-donor kidney transplantation improves clinical and patient decisions and donor selection. However, the concurrently used models are of limited discriminative or calibration power and there is a critical need to improve the selection process. We aimed to assess the value of various artificial intelligence (AI) algorithms to improve the risk stratification index. We evaluated pre-transplant variables among 66914 live-donor kidney transplants (performed between 01/12/2007-01/06/2021) from the United Network of Organ Sharing database, randomized into training (80%) and test (20%) sets. The primary outcome measure was death-censored graft survival. We tested four machine learning models for discrimination (time-dependent concordance index, CTD, and area under the ROC curve) and calibration (integrated Brier score, IBS). We used decision curve analysis to assess the potential clinical utility. Among the models, the deep Cox mixture model showed the best discriminative performance (AUC=0.70, 0.68, and 0.68 at 5, 10, and 13 years post-transplant, respectively). CTD reached 0.70, 0.67, and 0.66 at 5, 10, and 13 years post-transplant. The IBS score was 0.09, indicating good calibration. In comparison, applying the Living Kidney Donor Profile Index (LKDPI) on the same cohort produced a CTD of 0.56 and an AUC of 0.55-0.58 only. Decision curve analysis showed an additional net benefit compared to the LKDPI, 'Treat all' and 'Treat None' approaches. Our AI-based deep Cox mixture model, termed Live-Donor Kidney Transplant Outcome Prediction outperforms existing prediction models, including the LKDPI, with the potential to improve decisions for optimum live donor selection by ranking potential transplant pairs based on graft survival. This model could be adopted to improve the outcomes of paired exchange programs.

Effect of pre-transplantation use of angiotensin-converting enzyme inhibitor or angiotensin receptor blocker in kidney transplant recipients-propensity score-matched analysis.

Angiotensin-converting enzyme inhibitors and angiotensin receptor blockers (ACEi/ARBs) can cause acute kidney injury under dehydratation or inhemodynamically unstable conditions. Regarding kidney transplantation (KT), the risk of using ACEi/ARBs before surgery is not well established. Therefore, we evaluated the clinical outcomes to determine the effect of preoperative use of ACEi/ARBs on KT. We retrospectively collected 1187 patients who received living-donor KT between January 2017 and December 2021. We conducted a propensity score-matched analysis between the ACEi/ARB(+) and ACEi/ARB(-) groups and evaluated the effects of ACEi/ARBs on delayed graft function, post-KT renal function, hyperkalemia events, rejection, and graft survival. The ACEi/ARB(+) group showed a similar incidence of delayed graft function as the ACEi/ARB(-) group (1.8% vs. 1.0%, P = 0.362). The risk of delayed graft function was not upregulated in the ACEi/ARB(+) group after propensity score-matching (odds ratio: 0.50, 95% confidence interval (CI) 0.13-2.00). Postoperative creatinine levels and the slope of creatinine levels after KT also were not significantly different between the two groups (creatinine slope from POD#0 to POD#7: -0.73 ± 0.35 vs. -0.75 ± 0.32mg/dL/day, P = 0.464). Hyperkalemia did not occur more often in the ACEi/ARB(+) group than in the ACEi/ARB(-) group during perioperative days. Rejection-free survival (P = 0.920) and graft survival (P = 0.621) were not significantly different between the two groups. In KT, the preoperative use of ACEi/ARBs did not significantly affect clinical outcomes including delayed graft function, postoperative renal function, hyperkalemia events, incidence of rejection, and graft survival rates compared to the patients who did not receive ACEi/ARBs.

ABO-incompatible kidney transplantation using immunoadsorption columns: First experiences in South Africa.

ABO-incompatible kidney transplantation gives patients with chronic kidney disease requiring dialysis and without a blood group-compatible donor an alternative option for a kidney transplant. To describe our first experiences and outcomes with 3 patients using Glycosorb ABO immunoadsorption (IA) columns in performing ABO-incompatible living-donor kidney transplants. This is the first time this technique has been used in Africa. As per the protocol, patients needed between 1 and 4 sessions of IA and received rituximab ~ one month before transplantation. All the patients achieved the target isohaemagglutinin antibody titre of 1:4 pretransplant. Only 1 patient with the highest initial screening titre (1:256) needed IA post-transplant. None of the patients experienced clinical rejection, and all had good graft kidney function at discharge and at the time of writing. Glycosorb ABO IA is an effective technique in enabling ABO-incompatible living-donor kidney transplants to be performed successfully in a South African setting.

An ethical analysis of conditional and partially directed live kidney donation among strangers—The Israeli experience

Living donor kidney transplantation (LDKT) is one of the most effective treatment options for people with end-stage renal disease. Traditionally, LDKT can be either “directed” or “nondirected,” based on whether the recipient is specified by the donor. Recently, there has been an increase in conditional and semidirected live kidney donation among strangers, where the donor specifies the characteristics of the recipient whom they wish to donate to. This practice has both gained popularity and sparked controversy in the state of Israel through the nonprofit organization Matnat Chaim. We analyze the ethical implications of this practice by applying traditional principles of medical ethics to conditional LDKT. Although semidirected and conditional LDKT presents some ethical challenges, overall, its practice effectively aligns with core ethical principles. The donors' right to make stipulations respects the donor’s autonomy, the practice avoids harm and benefits both donor and recipient, and justice and utility are upheld as the practice specifically benefits marginalized patients and optimizes resource utilization. Finally, we present data from our institution demonstrating how conditional LDKT increased transplantation for all ethnic groups; Jewish recipients of LDKT increased by 151.32% (P = .034) Arab recipients of LDKT increased by 111.11% (P = .036).

Importance of Renal Graft Reperfusion Thermoregulation in Living Donor Kidney Transplant Patients: Gasometrical and Hemodynamical Study

INTRODUCTION: Hypothermia, defined as a decrease in core body temperature below 36°C, has a notable influence on hemodynamic variables during anesthesia, which is of great interest in perioperative medicine. Temperature regulation is crucial in anesthetic management because hypothermia can significantly impact the patient's cardiovascular functioning. Accidental (uncontrolled) hypothermia during anesthetic and surgical procedures carries considerable risks such as: Increases the incidence of surgical site infections, prolongs the effects of drugs administered during anesthesia, and disrupts normal coagulation, potentially increasing the risk of bleeding. For these reasons, body temperature regulation is a critical aspect to monitor and control during anesthesia. MATERIAL AND METHODS: A descriptive, observational, single-center, and retrospective study was carried out in patients undergoing a related living donor kidney transplant between June 2022-2023 at the Juarez Hospital in Mexico. All data were collected from the demographic sheets, laboratories and trans anesthetic sheets of the patient's file. The data was integrated into an Excel database and statistical processing was performed in SPSS or STATSm software. The statistical analysis was tested for normality according to Kolmogorov-Smirnov with Lilliefors correction, where it was found that the population has a normal or non-normal distribution. The Mann-Whitney U test was performed to compare the difference of the means between the two groups. A correlation was made with Kendall´s Tau coefficient; All statistical analyzes were performed with a value of p<0.05, considering these significantly. RESULTS: Of the 65 transplanted patients between Jun 2023 and June 2024 only 28 have appropriate inclusion criteria. Of the remaining 28, 16 were female (57.14%) and 12 were male (42.8%) with an average age of recipients of 30.2430.46 ±11.45 years with a weight of 58.23 ±10.47 kg, height 154.20 ±15.32 cm. Gasometrical and Hemodynamic Values upon Reperfusion with a Forced Air Turbine. The gasometrical variables before reperfusion were: Venous pH 7.41±0.05 (p=0.046); Arterial pH 7.40±0.04 (p=0.015); Venous Oxygen Saturation 68.2±9.74% (p = 0.039). Hemodynamic variables before reperfusion were: IC 3.67±1.77 lt/min/m2 (p=0.001); Stroke Volume 79.5±39.6 ml/beat (p=0.022), Oxygen Extraction 25.1±9.95% (p=0.001) and Myocardial Efficiency 0.28±0.06 (p=0.024); The gasometrical variables after reperfusion were: Venous pH 7.40±0.03; Arterial pH 7.380±0.04; Venous Oxygen Saturation 60.03±4.37%; The hemodynamic variables after reperfusion were: IC 2.88±0.48 liter/min/m2; Stroke Volume 65.4±16.01 ml/beat; Oxygen Extraction Rate 36.9±4.31% (p = 0.039) and Myocardial Efficiency 0.32±0.06 Gasometrical and Hemodynamic Values upon Reperfusion without Forced Air Turbine. The gasometrical variables before reperfusion were: Venous pH 7.32±0.04 (p=0.012); Arterial pH 7.30±0.04 (p=0.019); Venous Oxygen Saturation 64.7±8.27% (p = 0.026). Hemodynamic variables before reperfusion were Cardiac Index 3.28±1.66 lt/min/m2 (p=0.006); Stroke Volume 72.39±45.44 ml/beat (p=0.029); Oxygen Extraction 29.11±9.65% (p=0.001) and Myocardial Efficiency 0.268±0.08 (p=0.022). The gasometrical variables after reperfusion were: Venous pH 7.33±0.04; Arterial pH 7.320±0.05; Venous Oxygen Saturation 58.593±5.41%. The hemodynamic variables after reperfusion were: Cardiac Index 2.75±0.69 liter/min/m2, Stroke Volume 59.05±18.81 ml/beat, Oxygen Extraction Rate 38.47±6.17% and Myocardial Efficiency 0.31±0.05. CONCLUSIONS: Understanding the behavior of blood gas and hemodynamic variables upon reperfusion in transplant patients is essential for adequate kidney graft survival. In these patients, the use of a hot forced air turbine improves the conditions under which said reperfusion is performed, impacting not only at the blood gas level (venous pH, arterial pH and venous oxygen saturation) but also at the hemodynamic level (cardiac index, stroke volume, myocardial efficiency The limitations of the study are heterogeneity of the etiologies of CKD, sample size, and volume status prior to the procedure. To date the published works are consistent with the literature.

Preoperative dietary intake of low-dose sulforaphane induces no clinically significant effect in living donor kidney transplantation

IntroductionSulforaphane (SFN) has anti-inflammatory properties, and is found in broccoli sprouts. Studies suggest that it protects against disease due to its anti-inflammatory activity. The impact of SFN on healthy people undergoing a surgical procedure has not been investigated. ObjectiveTo explore the effect of SFN in living kidney donors on the postoperative inflammatory response and recovery. MethodsWe performed a double-blind randomised controlled trial where donors followed a SFN-enriched (8 mg) preoperative diet. ResultsA total of 42 donors were included, there were no significant differences at baseline. Postoperative inflammatory response was consistent among both arms and subjective recovery showed no significant difference. Findings regarding postoperative kidney function suggest no consistently significant impact. DiscussionA well-defined SFN-enriched diet did not have anti-inflammatory or a clinically relevant effect on the outcome. Due to the complexity of dietary modification of the inflammatory response, additional research is needed.

Challenges in decision-making support processes regarding living kidney donation: A qualitative study.

Previous studies on decision-making of living kidney donors have indicated issues regarding donors' autonomy is inherent in decision-making to donate their kidney. Establishing effective decision-making support that guarantees autonomy of living kidney donor candidates is important. The aim of this study was to identify the difficulties in the decision-making support when clinical transplant coordinators advocating for the autonomy of donor candidates of living donor kidney transplantation and to identify the methods to deal with these difficulties. A qualitative descriptive study. Ten clinical transplant coordinators supporting living kidney donors. Semi-structured interviews were conducted using an interview guide. The modified grounded theory approach was utilised to analyse. Three categories related to difficulties were as follows: issues inherent to the interaction between coordinators, donor candidates and their families; issues regarding the environment and institutional background in which coordinators operate; and emotional labour undertaken by coordinators in the decision-making support process. Additionally, five categories related to methods were as follows: assessing the autonomy of donor candidates based on the coordinators nursing experience; interventions for the donor candidates and their family members based on the coordinators nursing experience; smooth coordination with medical staff; clarifying and asserting their views as coordinators; and readiness to protect the donor candidates. The involvement of highly experienced coordinators with excellent and assertive communication skills as well as the ability to reflect on their own practices is essential. Moreover, we may need to fundamentally review the transplant community, where power domination is inherent.

Lean body mass in living kidney donors impacts postoperative renal function

PurposeA living donor kidney transplant is the optimal treatment for chronic renal impairment. Our objective is to assess if lean skeletal muscle mass and donor factors such as body mass index, hypertension, and age impact on renal function following donor nephrectomy.MethodsPotential donors undergo CT angiography as part of their work-up in our institution. Using dedicated software (Horos®), standardized skeletal muscle area measured at the L3 vertebrae was calculated. When corrected for height, skeletal muscle index can be derived. Skeletal muscle mass index below predefined levels was classified as sarcopenic. The correlation of CT-derived skeletal muscle index and postoperative renal function at 12 months was assessed. Co-variables including donor gender, age, body mass index (BMI), and presence of pre-op hypertension were also assessed for their impact on postoperative renal function.Results275 patients who underwent living donor nephrectomy over 10 years were included. Baseline pre-donation glomerular filtration rate (GFR) and renal function at one year post-op were similar between genders. 29% (n = 82) of patients met the criteria for CT-derived sarcopenia. Sarcopenic patients were more likely to have a higher GFR at one year post-op (69.3 vs 63.9 mL/min/1.73 m2, p < 0.001). The main factors impacting better renal function at one year were the presence of sarcopenia and younger age at donation.ConclusionWhen selecting donors, this study highlights that patients with low skeletal mass are unlikely to underperform in terms of recovery of their renal function postoperatively at one year when compared to patients with normal muscle mass and should not be a barrier to kidney donation.

Organ Donation in Syria.

The first living donor kidney transplant in Syria was performed 44 years ago; by the end of 2022, 6265 renal transplants had been performed in Syria. Kidney, bone marrow, cornea, and stem cells are the only organs or tissues that can be transplanted in Syria. Although 3 heart transplants from deceased donors were performed in the late 1980s, cardiac transplant activities have since discontinued. In 2003, national Syrian legislation was enacted authorizing the use of organs from living unrelated and deceased donors. This important law was preceded by another big stride: the acceptance by the higher Islamic religious authorities in Syria in 2001 of the principle of procurement of organs from deceased donors, provided that consent is given by a first- or second-degree relative. After the law was enacted, kidney transplant rates increased from 7 per million population in 2002 to 17 per million population in 2007. Kidney transplants performed abroad for Syrian patients declined from 25% in 2002 to <2% in 2007. Rates plateaued through 2010, before the political crisis started in 2011. Forty-four years after the first successful kidney transplant in Syria, patients needing an organ transplant rely on living donors only. Moreover, 20 years after the law authorizing use of organs from deceased donors, a program is still not in place in Syria. The war, limited resources, and lack of public awareness about the importance of organ donation and transplant appear to be factors inhibiting initiation of a deceased donor program in Syria. A concerted and ongoing education campaign is needed to increase awareness of organ donation, change negative public attitudes, and gain societal acceptance. Every effort must be made to initiate a deceased donor program to lessen the burden on living donors and to enable national self-sufficiency in organs for transplant.

Effects of Antithymocyte Globulin, Basiliximab, and Induction-Free Treatment in Living Donor Kidney Transplant Recipients on Tacrolimus-Based Immunosuppression.

Induction treatment in renal transplant is associated with better graft survival. However, intensified immunosuppression is known to cause unwanted side effects such as infection and malignancy. Furthermore, the effects of the routine use of immunosuppressants in low-risk kidney transplant recipients are still not clear. In this study, we assessed the first-year safety and efficacy of induction treatment. We examined first living donor kidney transplant patients who were on tacrolimus based immunosuppression therapy. We formed 3 groups according to the induction status: antithymocyte globulin induction, basiliximab induction, and no induction. We collected outcome data on delayed graft function, graft loss, creatinine levels, estimated glomerular filtration rates, acute rejection episodes, hospitalization episodes, and infection episodes, including cytomegalovirus infection and bacterial infections. We examined a total of 126 patients (age 35 ± 12 years; 65% male). Of them, 25 received antithymocyte globulin, 52 received basiliximab, and 49 did notreceive any induction treatment. We did not observe any statistically significant difference among the 3 groups in terms of acute rejection episodes, delayed graft function, and first-year graft loss. The estimated glomerular filtration rates were similar among the groups. Overall bacterial infectious complications and cytomegalovirus infection showed similar prevalence among all groups. Hospitalization was less common in the induction-free group. In low-risk patients, induction-free regimens could be associated with a better safety profile without compromising graft survival. Therefore, induction treatment may be disregarded in first living donor transplant patients who receive tacrolimusbased triple immunosuppression treatment.

Multiple Renal Arteries in Live Donor Renal Transplantation and Impact on Graft Function and Outcome: A Retrospective Study

Objective: The objective of the study is to evaluate the outcomes of live-donor renal allografts with multiple and single renal arteries taking into consideration ischemia times, graft function, and other complications including vascular and urological. Materials and Methods: We conducted a retrospective study by analyzing a prospectively maintained database from January 2021 to December 2021 of all patients undergoing live-related renal allograft transplants at a tertiary care center in North India. A total of 239 live donor kidney transplants were performed during this period. Patients were divided into two groups – Group 1: Single artery single anastomosis and Group 2: Multiple arteries with two or more anastomoses. Duplex imaging of the graft was done at 6 months. Recipients were followed up for possible graft dysfunction, arterial insufficiency, and major urological complications. Results: Mean ischemia times in the two groups were 20.62 ± 1.05 and 30.45 ± 1.77 min, respectively. Failure to normalize creatinine (&lt;1.2 mg/dl) within 72 h was seen in 6/183 and 3/56 (P &gt; 0.05). Slow graft function was encountered in 6 cases in Group 1 and 3 cases in Group 2. Delayed graft function occurred in two patients in both groups. One-year graft survival among the groups was 5/183 and 2/56, respectively (P &gt; 0.05). One patient from Group 1 developed transplant renal artery stenosis. Six patients from Group 1 developed ureteric complications. Conclusion: Donor grafts with multiple renal arteries may be accepted safely with careful surgical reconstruction and close surveillance posttransplant.

Addressing Kidney Transplant Shortage: The Potential of Kidney Paired Exchanges in Jordan.

Jordan performed the Middle East's first living-donor kidney transplant in 1972. In 1977, the country became one of the first Arab countries to regulate organ donation and transplantation. Despite these early advances in living donor transplantation, Jordan's organ donation after brain death program remains inactive, making it challenging to meet organ demand and placing many patients on long transplant waiting lists. As of 2020, only 14.2% of the patients with end-stage kidney disease have access to a living donor. The scarcity of compatible living donors exacerbates Jordan's organ shortage, leaving patients with extended waits and uncertain transplant prospects. Due to the lack of living donors and the inactive brain death donation program, additional options are needed to meet organ demand. Kidney paired exchange (KPE), emerges as a potential solution to the problem of donor shortage and donor-recipient incompatibility. By allowing living donors to direct their donated organs to different compatible recipients, KPE offers the promise of expanding transplant opportunities for patients without suitable living donors. However, the current Jordanian law restricting living kidney donation to fifth-degree relatives further limits the pool of potential donors, aggravating the organ shortage situation. This article explores the feasibility of implementing KPE in Jordan and proposes an approach to implementing KPE in Jordan, considering ethical and legal aspects to substantially increase kidney transplants.

Effectiveness of physical therapy on physical activity and employment status in kidney transplant recipients in their sixties: a case report with literature review

BackgroundFew reports have been published on preoperative and long-term postoperative rehabilitation after kidney transplantation. Poor physical function after kidney transplantation is associated with adverse events; hence, physical function should be improved postoperatively. We report a case in which physical therapy was provided just before the operation and 12 months postoperatively to improve physical performance.Case presentationA 64-year-old man, working as a janitor and maintenance worker at a driving school, received a living-donor kidney transplant from his wife. The just before the operation assessment revealed a decline in his physical function, indicating he had become frail. Accordingly, physical therapy was initiated prior to kidney transplantation. Subsequently, his Short Physical Performance Battery score improved from 10 to 12, and his knee extension muscle strength improved from 0.38 to 0.43 kgf/kg, enabling him to resume work. The work functioning impairment scale improved from 13 to 7.ConclusionsThis case reveals that just before the operation and long-term rehabilitation is crucial in enhancing physical activity in kidney transplantation patients. Although this focused rehabilitation approach holds promise, evaluating its efficacy requires the examination of a larger cohort of cases.

Mid-term efficacy evaluation of ABO incompatible living relative kidney transplantation based on protocol biopsy

Objective: To evaluate the mid-term efficacy of ABO incompatible living donor kidney transplantation (ABOi-KT) based on the results of routine renal biopsy for transplantation. Methods: Retrospective collection of clinical data from 23 pairs of ABOi-KT donors and recipients at the First Affiliated Hospital of Sun Yat-sen University from July 2015 to November 2021. ABOi-KT was performed on recipients after desensitization treatment, and the results of routine kidney transplant biopsy at 1 week, 1 month, 3 months, 6 months, and 12 months after surgery were analyzed. Combined with blood type antibody levels and renal function recovery, the mid-term efficacy of ABOi-KT was evaluated. Results: Among the 23 recipients, there were 19 males and 4 females; age range from 19 to 47 years old [(29.6±6.7) years old], all underwent ABOi-KT successfully after receiving desensitization treatment. The follow-up time was (44.6±22.4) months, of which 22 cases were followed up for more than 1 year. The incidence rates of rejection reactions at 1 week, 1 month, 3 months, 6 months, and 12 months after surgery were 15.0% (3/20), 11.1% (1/9), 7.7% (1/13), 25.0% (3/12), and 12.5% (1/8), respectively. For receptors with rejection reactions, targeted anti-rejection therapy was performed based on clinical symptoms and various indicators. Borderline T cell mediated rejection (TCMR) can be converted to mild tubular inflammation after anti-rejection treatment. The positive rate of complement C4d in peritubular capillaries was 95.0% (19/20) one week after surgery, and the positive rate of complement C4d was 100% at 3 and 12 months after surgery. The cumulative survival rates at 1, 3, 5, and 7 years after surgery were all 100%. The cumulative survival rates at 1, 3, 5, and 7 years after kidney transplantation were 100%, 93.3%, 84.0%, and 84.0%, respectively. Except for 2 recipients who underwent transplantation in 2017 and experienced kidney failure at 30 and 49 months after surgery, all other transplanted kidneys survived. Conclusions: The results of routine renal transplant biopsy show that ABOi-KT has a good mid-term therapeutic effect. The pathological changes of ABOi-KT can be dynamically observed through routine renal transplant biopsy and targeted treatment for rejection reactions can be provided accordingly.

Nocardiosis in kidney transplant recipients: A tertiary care center experience

IntroductionKidney transplant recipients are at increased risk of opportunistic infections, including Nocardia. The incidence of nocardiosis in kidney transplant recipients is 0.4–1.3%. The data regarding its epidemiology and outcomes is limited. MethodsThis was a 10-year retrospective observational study from January 2012 to December 2021 at a tertiary care center in northern India, in which all kidney transplant recipients with Nocardia infection were included and followed. Results12 (1.1%) patients had a Nocardia infection among the 1108 kidney transplant recipients. All were living donor kidney transplant recipients, and the mean age at diagnosis was 48.67 ± 12.60 years. Nocardia infection occurred at a median of 26 months (range 4–235) post-transplantation, with 4 (33.1%) of the cases occurring within a year of transplant. Breakthrough infection occurred in 7 (58.3%) patients on cotrimoxazole prophylaxis. 41.7% (n = 5) cases had an episode of rejection in the preceding year of Nocardia diagnosis. Concurrent cytomegalovirus (CMV) infection was present in one (8.3%) case. The lung was the most frequently involved organ. Microscopy was positive in all the cases; while culture was positive in 10 cases, and antimicrobial susceptibility testing (AST) were performed for these isolates. The majority (60%) of isolates were resistant to cotrimoxazole. All tested isolates remained susceptible to Amikacin, Imipenem, and Linezolid. No patients experienced Nocardia recurrence after completion of antibiotic therapy. The mortality at 12 months was 66.7% (n = 4), and only one death was Nocardia-related. ConclusionNocardia may cause a late-manifesting infection beyond the traditional window. The cotrimoxazole prophylaxis may not be sufficient for Nocardia prevention.

Outcome of ABO-incompatible living-donor kidney transplants : Aplea for crossover living-donor kidney transplantation

The lack of postmortem donated organs is the background to varyingly high rates of living-donor kidney transplants worldwide. ABO blood group-incompatible living-donor kidney transplants have also been established for at least 20years. The equivalence of the results of ABO-incompatible and ABO-compatible transplants has recently been questioned. In the sense of acritical reflection of our own kidney transplant program, we were interested in comparing ABO-incompatible with ABO-compatible living-donor kidney transplants. Aretrospective analysis of the long-term outcomes of all living-donor kidney transplants performed at our center since the first ABO-incompatible transplants were performed in 2005 up to and including 2022 was performed. Between 2005 and 2022, 1099 living kidney transplants were performed at the authors' center. Among them were 241ABO-incompatible transplants. Transplant survival was significantly lower after ABO-incompatible donation than after ABO-compatible donation. This effect consisted of an increased mortality of the recipients, especially in the early phase, and areduced longevity of the grafts. Including ABO-incompatible pairs for living-donor kidney transplants in crossover programs can improve medical outcomes and reduce costs.

Retracted: COVID-19 and Living Donor Kidney Transplantation in Naples during the Pandemic.

[This retracts the article DOI: 10.1155/2020/5703963.].