Başkent Üniversitesi Makaleler
Permanent URI for this collectionhttps://hdl.handle.net/11727/13096
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Item Risk Factors and Outcomes of New-Onset Diabetes After Transplant: Single-Centre Experience(Başkent Üniversitesi, 2012-10) Al-Ghareeb, Sumaya M.; Alhellow, Hamad A.; Arrayed, Ahmed Al; Arrayed, Sameer M. Al; El-Agroudy, Amgad E.Objectives: We sought to study the prevalence, risk factors, and long-term prognosis of posttransplant diabetes mellitus. Materials and Methods: We studied all patients with end-stage renal disease without diabetic nephropathy who received a kidney transplant and were followed-up at our center since 1983 (n=218; age, 44.3 ± 13.1 y). Patients with new-onset diabetes after transplant were compared to kidney transplant recipients without risk factors for diabetes mellitus. Patients with new-onset diabetes after transplant were divided into subgroups according to time of onset (early; < 90 d vs late, ≥ 90 d). Results: In total, 73/218 patients (33%) developed new-onset diabetes after transplant. Patients with new-onset diabetes after transplant were significantly older (51.2 ± 11.4 vs 40.7 ± 12.5 y; P < .001) and had a tendency to have a higher body mass index (29.6 ± 8.7 vs 21.6 ± 7.8 kg/m2; P =.05) than those that did not have new-onset diabetes after transplant. In multivariate analysis, age (P < .001), hepatitis C virus infection (P < .05), family history of diabetes mellitus (P < .03), and tacrolimus use (P < .001) were independent risk factors. Five- and 10-year death censored patient survival rates were worse in those that had new-onset diabetes after transplant compared with controls (log rank, 0.04), whereas there was no difference in outcomes between the early and late subgroups. Conclusions: The prevalence of new-onset diabetes after transplant was 33%. Age, body weight at time of transplant, tacrolimus use, family history of diabetes mellitus, and hepatitis C virus infection are independent risk factors for new-onset diabetes after transplant. New-onset diabetes after transplant has a negative effect on patient survival, irrespective of the time of onset and duration of diabetes.Item Characteristics of Patients With Banff Borderline Changes in Renal Allograft Biopsies(Başkent Üniversitesi, 2009-12) Wafa, Ehab W.; Ghoneim, Mohamed A.; El-Agroudy, Amgad E.; El-Baz, Mahmoud; Gheith, Osama A.; El-Husseini, Amr; Abbas, Tarek M.Objectives: The aim of this retrospective study was to characterize the patients who experienced borderline rejection. Materials and Methods: Patients with a minimum follow-up of 2 years were enrolled in this study. Forty-seven patients out of 106 patients with borderline rejection (after exclusion of those with associated chronic interstitial fibrosis) were compared with patients with acute cellular rejection grade 1 (n=650), and patients free of rejection episodes (n=444) regarding the different characteristics. Results: Patients aged 20 years or younger were frequently in borderline rejection group than other groups (which was statistically significant) (P = .001). Significant differences were found in recipient and donor ages, consanguinity, pretransplant blood transfusion, and immunosuppression plan. Most patients in borderline rejection group received triple immunosuppression therapy than other groups (P = .001). Univariate and multivariate regression analysis of different variables on graft survival in borderline rejection patients revealed that none of them was statistically significant. Conclusions: Borderline rejection is a frequent finding in biopsy-proven acute rejection after kidney transplant. Time of occurrence, frequency, treatment or not, and response to therapy were not predictors to graft survival.Item Characteristics of Recipients Whose Kidney Allograft Has Functioned for More Than 20 Years(Başkent Üniversitesi, 2008-06) El-Agroudy, Amgad E.; Ghoneim, Mohamed A.; Shokeir, Ahmed A.; Ismail, Amani M.; Abbass, Tarek M.; El-Dahshan, KhaledObjectives: To study the characteristics of, and predictors for, survival in renal transplant recipients with an allograft functioning for more than 20 years. Materials and Methods: Of 144 renal transplants done between 1976 and 1985, 31 allografts were still functioning for more than 20 years (range, 21-28.5 years). The characteristics of the patients and determinants of the outcomes were obtained by reviewing the patients’ medical records. Results: Fourteen patients were treated with cyclosporine, while 17 patients had primary immunosuppression with azathioprine-based regimens. Episodes of acute rejection occurred in 17 patients (58%), 7 of these experienced 2 or more episodes. At most-recent follow-up, the mean serum creatinine level was 132 ± 44 µmol/L . Four patients were assessed by graft biopsy 15 or more years after the transplant, revealing 2 cases of mild glomerulosclerosis and 2 cases of moderate chronic allograft nephropathy. The most common complication was hypertension (54%). The independent determinants of long-term graft survival were donor age and source, hypertension both before and after renal transplant, and histopathological findings of chronic allograft nephropathy. Conclusions: Renal transplant offers a near-normal life to patients with end-stage renal disease soon after transplant and for upwards of 20 years and more. We found no significant benefit to cyclosporine-based immunosuppression on long-term graft survival.