Background Delayed graft function (DGF) is a common complication of renal transplantation. The short-term consequences of DGF are well known, but the long-term relationship between DGF and patient and graft survival is controversial in the published literature. We conducted a systematic review and meta-analysis to precisely estimate these relationships. Methods We performed a literature search for original studies published through March 2007 pertaining to long-term (>6 months) outcomes of DGF. The primary outcome was graft survival. Secondary outcomes were patient survival, acute rejection and kidney function. Results When compared to patients without DGF, patients with DGF had a 41% increased risk of graft loss (RR 1.41, 95% CI 1.27-1.56) at 3.2 years of follow-up. There was no significant relationship between DGF and patient survival at 5 years (RR 1.14, 95% CI 0.94-1.39). The mean creatinine in the non-DGF group was 1.6 mg/dl. Patients with DGF had a higher mean serum creatinine (0.66 mg/dl, 95% CI 0.57-0.74) compared to patients without DGF at 3.5 years of follow-up. DGF was associated with a 38% relative increase in the risk of acute rejection (RR 1.38, 95% CI 1.29-1.47). Conclusion The results of this meta-analysis emphasize and quantify the long-term detrimental association between DGF and important graft outcomes like graft survival, acute rejection and renal function. Efforts to prevent and treat DGF should be aggressively investigated in order to improve graft survival given the deficit in the number of kidney donors.

/pdf/association-between-delayed-graft-function-and-allograft-and-37l3gafuxx.pdf

Association between delayed graft function and allograft and patient survival: a systematic review and meta-analysis

https://www.kidney-international.org/article/S2157-1716(15)32257-7/pdf

Delayed graft function and the risk of acute rejection in the modern era of kidney transplantation

Vascular complications after live donor renal transplantation: study of risk factors and effects on graft and patient survival.

Delayed graft function (DGF) occurs in 15 to 25% (range, 10 to 62%) of cadaveric kidney transplant recipients and up to 9% of living donor recipients. In addition to donor, recipient, and procedural factors, the choice of immunosuppression may influence the development of DGF. The impact of immunosuppression on DGF was studied. The frequency of DGF was evaluated in first cadaveric or living donor kidney allograft recipients (n = 144) transplanted at the University of Washington from November 1999 through September 1, 2001. Donor, recipient, and procedural factors, as well as biopsy results, were compared between patients who developed DGF and those who did not. DGF was more common in patients treated with rapamycin than without (25% versus 8.9%, P = 0.02) and positively correlated with rapamycin dose (P = 0.008). In those developing DGF, the duration of posttransplant dialysis increased with donor age (P = 0.003) but decreased with mycophenolate mofetil use (P = 0.01). All biopsies during episodes of DGF demonstrated changes of acute tubular injury. Of the patients with tubular injury, 12 treated with rapamycin and tacrolimus developed intratubular cast formation indistinguishable from myeloma cast nephropathy. Histologic, immunohistochemical, and ultrastructural studies indicated that these casts were composed at least in part of degenerating renal tubular epithelial cells. These findings suggest that rapamycin therapy exerts increased toxicity on tubular epithelial cells and/or retards healing, leading to an increased incidence of DGF. Additionally, rapamycin treatment combined with a calcineurin inhibitor may lead to extensive tubular cell injury and death and a unique form of cast nephropathy.

/pdf/delayed-graft-function-and-cast-nephropathy-associated-with-l95o8e6hei.pdf

Delayed Graft Function and Cast Nephropathy Associated with Tacrolimus Plus Rapamycin Use

. Heme oxygenase-1 (HO-1) overexpression using gene transfer protects rat livers against ischemia/reperfusion (I/R) injury. This study evaluates the effects of Ad-HO-1 gene transfer in a rat renal isograft model. Donor LEW kidneys were perfused with Ad-HO-1, Ad-β-gal, or PBS, stored at 4°C for 24 h, and transplanted orthotopically into LEW recipients, followed by contralateral native nephrectomy. Serum creatinine, urine protein/creatinine ratios, severity of histologic changes, HO-1 mRNA/protein expression, and HO enzymatic activity were analyzed. Ad-HO-1 gene transfer conferred a survival advantage when compared with PBS– and Ad-β-gal–treated controls, with median survival of 100, 7, and 7 d, respectively ( P P versus 5.0; P P P

/pdf/gene-transfer-induced-local-heme-oxygenase-1-overexpression-innil74mh1.pdf

Gene transfer-induced local heme oxygenase-1 overexpression protects rat kidney transplants from ischemia/reperfusion injury.

Posttransplantation acute tubular necrosis: Risk factors and implications for graft survival

Introduction: Acute Promyelocytic Leukemia (APL) is highly associated with hemostasis alterations. The atypical hemolytic uremic syndrome (aHUS) is a rare type of Thrombotic Microangiopathy (TMA) due to an overactivation of the alternative complement pathway. Case Presentation: A 48-years-old woman was diagnosed with APL and achieved molecular remission after induction therapy. During the second consolidation cycle she presented with TMA. She began treatment with plasma exchange plus corticotherapy but due to aggravation of symptoms Eculizumab was initiated. Thrombotic thrombocytopenic purpura, infections and drug toxicity causes were ruled out. There was no evidence of relapse of the APL. Genetic studies of the hereditary anomalies of the alternative complement pathway were negative and the decision of stopping Eculizumab was made. During maintenance therapy for the APL she presented a severe relapse of the aHUS, requiring dialysis. She re-started treatment with Eculizumab with a progressive hematologic recovery and improvement of renal function. She completed APL treatment without relapse of the leukemia for the moment and continues to be treated with Eculizumab. Conclusion: This is the first published case of coexisting aHUS and APL successfully treated with Eculizumab. 

Atypical Hemolytic Uremic Syndrome in a Patient with Acute Promyelocytic Leukemia: A Case Report

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Posttransplantation acute tubular necrosis: Risk factors and implications for graft survival

Atypical Hemolytic Uremic Syndrome in a Patient with Acute Promyelocytic Leukemia: A Case Report