scholarly journals Introduction of the Grayscale Median for Ultrasound Tissue Characterization of the Transplanted Kidney

Diagnostics ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 390
Author(s):  
Camilo G. Sotomayor ◽  
Stan Benjamens ◽  
Hildebrand Dijkstra ◽  
Derya Yakar ◽  
Cyril Moers ◽  
...  
Keyword(s):  
Kidney Transplant ◽  
Tissue Characterization ◽  
Kidney Transplant Recipients ◽  
Systematic Assessment ◽  
Ultrasound Tissue Characterization ◽  
Adult Kidney ◽  
Mersenne Twister ◽  
History Of

Ultrasound examination is advised for early post-kidney transplant assessment. Grayscale median (GSM) quantification is novel in the kidney transplant field, with no systematic assessment previously reported. In this prospective cohort study, we measured the post-operative GSM in a large cohort of adult kidney transplant recipients (KTR) who consecutively underwent Doppler ultrasound directly after transplantation (within 24 h), compared it with GSM in nontransplanted patients, and investigated its association with baseline and follow-up characteristics. B-mode images were used to calculate the GSM in KTR and compared with GSM data in nontransplanted patients, as simulated from summary statistics of the literature using a Mersenne twister algorithm. The association of GSM with baseline and 1-year follow-up characteristics were studied by means of linear regression analyses. In 282 KTR (54 ± 15 years old, 60% male), the median (IQR) GSM was 55 (45–69), ranging from 22 to 124 (coefficient of variation = 7.4%), without differences by type of donation (p = 0.28). GSM in KTR was significantly higher than in nontransplanted patients (p < 0.001), and associated with systolic blood pressure, history of cardiovascular disease, and donor age (std. β = 0.12, −0.20, and 0.13, respectively; p < 0.05 for all). Higher early post-kidney transplant GSM was not associated with 1-year post-kidney transplant function parameters (e.g., measured and estimated glomerular filtration rate). The data provided in this study could be used as first step for further research on the application of early postoperative ultrasound in KTR.

scholarly journals Incidence and Impacts of Inflammatory Bowel Diseases among Kidney Transplant Recipients: A Meta-Analysis

2020 ◽  
Vol 8 (3) ◽  
pp. 39
Author(s):  
Panupong Hansrivijit ◽  
Max M. Puthenpura ◽  
Charat Thongprayoon ◽  
Himmat S. Brar ◽  
Tarun Bathini ◽  
...  
Keyword(s):  
Kidney Transplant ◽  
De Novo ◽  
Meta Analysis ◽  
Transplant Recipients ◽  
Kidney Transplant Recipients ◽  
Post Transplant ◽  
Adult Kidney ◽  
Bowel Diseases ◽  
Inflammatory Bowel

Background: The incidence of inflammatory bowel diseases (IBD) and its significance in kidney transplant recipients is not well established. We conducted this systematic review and meta-analysis to assess the incidence of and complications from IBD in adult kidney transplant recipients. Methods: Eligible articles were searched through Ovid MEDLINE, EMBASE, and the Cochrane Library from inception through April 2020. The inclusion criteria were adult kidney transplant patients with reported IBD. Effect estimates from the individual studies were extracted and combined using the fixed-effects model when I2 ≤ 50% and random-effects model when I2 > 50%. Results: of 641 citations, a total of seven studies (n = 212) were included in the systematic review. The mean age was 46.2 +/− 6.9 years and up to 51.1% were male. The mean duration of follow-up was 57.8 +/− 16.8 months. The pooled incidence of recurrent IBD was 27.6% (95% CI, 17.7–40.5%; I2 0%) while the pooled incidence of de novo IBD was 18.8% (95% CI, 10.7–31.0%; I2 61.3%). The pooled incidence of post-transplant IBD was similar across subgroup analyses. Meta-regression analyses showed no association between the incidence of IBD and age, male sex, and follow-up duration. For post-transplant complications, the pooled incidence of post-transplant infection was 4.7% (95% CI, 0.5–33.3%; I2 73.7%). The pooled incidence of graft rejection and re-transplantation in IBD patients was 31.4% (95% CI, 14.1–56.1%; I2 76.9%) and 30.4% (95% CI, 22.6–39.5%; I2 0%). Conclusion: Recurrent and de novo IBD is common among kidney transplant recipients and may result in adverse outcomes.

Long-term follow-up of polyneuropathy in diabetic kidney transplant recipients

Diabetes ◽  
1988 ◽  
Vol 37 (9) ◽  
pp. 1247-1252 ◽  
Author(s):  
J. A. Van der Vliet ◽  
X. Navarro ◽  
W. R. Kennedy ◽  
F. C. Goetz ◽  
J. J. Barbosa ◽  
...  
Keyword(s):  
Kidney Transplant ◽  
Transplant Recipients ◽  
Kidney Transplant Recipients ◽  
Diabetic Kidney ◽  
Long Term Follow Up

scholarly journals Urinary Carnosinase-1 Excretion is Associated with Urinary Carnosine Depletion and Risk of Graft Failure in Kidney Transplant Recipients: Results of the TransplantLines Cohort Study

Antioxidants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1102
Author(s):  
Angelica Rodriguez-Niño ◽  
Diego O. Pastene ◽  
Adrian Post ◽  
M. Yusof Said ◽  
Antonio W. Gomes-Neto ◽  
...  
Keyword(s):  
Kidney Transplant ◽  
Graft Failure ◽  
Cox Regression ◽  
Carbonyl Stress ◽  
Transplant Recipients ◽  
Kidney Transplant Recipients ◽  
Increased Risk ◽  
High Concentrations ◽  
Kidney Function Decline

Carnosine affords protection against oxidative and carbonyl stress, yet high concentrations of the carnosinase-1 enzyme may limit this. We recently reported that high urinary carnosinase-1 is associated with kidney function decline and albuminuria in patients with chronic kidney disease. We prospectively investigated whether urinary carnosinase-1 is associated with a high risk for development of late graft failure in kidney transplant recipients (KTRs). Carnosine and carnosinase-1 were measured in 24 h urine in a longitudinal cohort of 703 stable KTRs and 257 healthy controls. Cox regression was used to analyze the prospective data. Urinary carnosine excretions were significantly decreased in KTRs (26.5 [IQR 21.4–33.3] µmol/24 h versus 34.8 [IQR 25.6–46.8] µmol/24 h; p < 0.001). In KTRs, high urinary carnosinase-1 concentrations were associated with increased risk of undetectable urinary carnosine (OR 1.24, 95%CI [1.06–1.45]; p = 0.007). During median follow-up for 5.3 [4.5–6.0] years, 84 (12%) KTRs developed graft failure. In Cox regression analyses, high urinary carnosinase-1 excretions were associated with increased risk of graft failure (HR 1.73, 95%CI [1.44–2.08]; p < 0.001) independent of potential confounders. Since urinary carnosine is depleted and urinary carnosinase-1 imparts a higher risk for graft failure in KTRs, future studies determining the potential of carnosine supplementation in these patients are warranted.

Extracorporeal photopheresis for the treatment of graft rejection in 33 adult kidney transplant recipients

2019 ◽  
Vol 58 (4) ◽  
pp. 515-524
Author(s):  
Mathilde Tamain ◽  
Johnny Sayegh ◽  
Arnaud Lionet ◽  
Philippe Grimbert ◽  
Carole Philipponnet ◽  
...  
Keyword(s):  
Kidney Transplant ◽  
Graft Rejection ◽  
Extracorporeal Photopheresis ◽  
Transplant Recipients ◽  
Kidney Transplant Recipients ◽  
Adult Kidney

scholarly journals Pharmacokinetics, Pharmacodynamics, and Immunogenicity of Belatacept in Adult Kidney Transplant Recipients

2013 ◽  
Vol 34 (2) ◽  
pp. 117-126 ◽  
Author(s):  
Jinshan Shen ◽  
Robert Townsend ◽  
Xiaoli You ◽  
Yun Shen ◽  
Ping Zhan ◽  
...  
Keyword(s):  
Kidney Transplant ◽  
Transplant Recipients ◽  
Kidney Transplant Recipients ◽  
Adult Kidney

MO941CLINICAL OUTCOMES IN KIDNEY RE-TRANSPLANTATION

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Clara Pardinhas ◽  
Rita Leal ◽  
Francisco Caramelo ◽  
Teofilo Yan ◽  
Carolina Figueiredo ◽  
...  
Keyword(s):  
Acute Rejection ◽  
Kidney Transplant ◽  
Graft Survival ◽  
Graft Failure ◽  
Graft Function ◽  
Delayed Graft Function ◽  
First Year ◽  
Kidney Transplant Recipients ◽  
Post Transplant

Abstract Background and Aims As kidney transplants are growing in absolute numbers, so are patients with failed allografts and thus potential candidates for re-transplantation. Re-transplantation is challenging due to immunological barriers, surgical difficulties and clinical complexities but it has been proven that successful second transplantation improves life expectancy over dialysis. It is important to evaluate re-transplantation outcomes since 20% of patients on the waiting list are waiting for a second graft. Our aim was to compare major clinical outcomes such as acute rejection, graft and patient survival, between patients receiving a first or a second kidney transplant. Method We performed a retrospective study, that included 1552 patients submitted to a first (N=1443, 93%) or a second kidney transplant (N=109, 7%), between January 2008 and December 2018. Patients with more than 2 grafts or multi-organ transplant were excluded. Demographic, clinical and histocompatibility characteristics of both groups were registered from our unit database and compared. Delayed graft function was defined has the need of dialysis in the first week post-transplant. All acute rejection episodes were biopsy proven, according to Banff 2017 criteria. Follow-up time was defined at 1st June 2020 for functioning grafts or at graft failure (including death with a functioning graft). Results Recipients of a second graft were significantly younger (43 ±12 vs 50 ± 13 years old, p&lt;0.001) and there were significantly fewer expanded-criteria donors in the second transplant group (31.5% vs 57.5%, p&lt;0.001). The waiting time for a second graft was longer (63±50 vs 48±29 months, p=0.011). HLA mismatch was similar for both groups but PRA was significantly higher for second KT patients (21.6±25% versus 3±9%; p&lt;0.001). All patients submitted to a second KT had thymoglobulin as induction therapy compared to 16% of the first KT group (p&lt;0.001). We found no difference in primary dysfunction or delayed graft function between groups. Acute rejection was significantly more frequent in second kidney transplant recipients (19% vs 5%, p&lt;0.001), being 10 acute cellular rejections, 7 were antibody mediated and 3 were borderline changes. For the majority of the patients (85%), acute rejection occurred in the first-year post-transplant. Death censored graft failure occurred in 236 (16.4%) patients with first kidney transplant and 25 (23%) patients with a second graft, p=0.08. Survival analysis showed similar graft survival for both groups (log-rank p=0.392). We found no difference in patients’ mortality at follow up for both groups. Conclusion Although second graft patients presented more episodes of biopsy proven acute rejection, especially at the first-year post-transplant, we found no differences in death censored graft survival or patients’ mortality for patients with a second kidney transplant. Second transplants should be offered to patients whenever feasible.

Graft Failure Due to Noncompliance Among 628 Kidney Transplant Recipients With Long-term Follow-up

2014 ◽  
Vol 97 (9) ◽  
pp. 925-933 ◽  
Author(s):  
Jeffrey J. Gaynor ◽  
Gaetano Ciancio ◽  
Giselle Guerra ◽  
Junichiro Sageshima ◽  
Lois Hanson ◽  
...  
Keyword(s):  
Kidney Transplant ◽  
Graft Failure ◽  
Transplant Recipients ◽  
Kidney Transplant Recipients ◽  
Long Term Follow Up

An Exploratory Correlational Study in the Use of Mobile Technology Among Adult Kidney Transplant Recipients

2018 ◽  
Vol 28 (4) ◽  
pp. 368-375 ◽  
Author(s):  
Tara O’Brien ◽  
Cynthia L. Russell ◽  
Alai Tan ◽  
Mallory Washington ◽  
Donna Hathaway
Keyword(s):  
Kidney Transplant ◽  
Mobile Technology ◽  
Mobile Apps ◽  
Self Management ◽  
Transplant Recipients ◽  
Kidney Transplant Recipients ◽  
Cross Sectional ◽  
Adult Kidney ◽  
Access Patterns ◽  
Management Of Care

Introduction: Rapidly growing use of mobile technology provides a platform for self-management of care support for those with chronic conditions. Few studies have explored the characteristics or access patterns of kidney transplant recipients who use mHealth applications (apps) for self-management of care. Research Questions: The primary aim of this study was to describe demographics, use, barriers, and perceptions of mobile apps for self-management of care among adult kidney transplants recipients. The secondary aim was to compare blood urea nitrogen, glomerular filtration rate, and number of hospitalizations among mHealth app users, other app users, and non-app users. Methods: A cross-sectional design was used to administer the Mobile Application Use among Kidney Transplant Recipients Questionnaire. Descriptive statistics, χ2 statistics, and analysis of variance were used for the primary aim and linear regression was used for the secondary aim. Results: The sample included mostly African American males (n = 123, 75.5%) with a mean age of 50 (13.2) years. Knowledge was the greatest barrier reported by the non-app users (mHealth app users 9%, other app users 12%, non-app users, 49%, P < .001). Significantly fewer hospitalizations were found in the mHealth app users compared to other app users (regression coefficient b = −1.2, standard error [SE] = 0.5) and non-app users ( b = −0.9, SE = 0.6), adjusting for patient demographic and clinical characteristics. Discussion: Findings suggest a relationship may exist between mHealth app use and a decrease in the number of hospitalizations following kidney transplantation.

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