Transplantation
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Orthotopic liver transplantation (OLT) has been associated with major blood loss and the need for blood product transfusions. During the last decade, improved surgical and anesthetic management has reduced intraoperative blood loss and blood product transfusions. A first report from our group published in 2005 described a mean intraoperative transfusion rate of 0.3 red blood cell (RBC) unit per patient for 61 consecutive OLTs. Of these patients, 80.3% did not receive any blood product. The interventions leading to those results were a combination of fluid restriction, phlebotomy, liberal use of vasopressor medications, and avoidance of preemptive transfusions of fresh frozen plasma. This is a follow-up observational study, covering 500 consecutive OLTs. ⋯ In our center, a low intraoperative transfusion rate could be maintained throughout 500 consecutive OLTs. Bleeding did not correlate with the severity of recipient's disease. The starting Hb value showed the strongest correlation with OLT without RBC transfusion.
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Focal segmental glomerulosclerosis (FSGS) is a relatively prevalent glomerular disorder that often progresses to end-stage renal disease. Thirty to 80% of kidney transplant (KT) recipients with FSGS will experience recurrence characterized by proteinuria and podocyte damage. We hypothesized that the degree of podocyte foot process (FP) effacement in postreperfusion transplant biopsies can be used to predict the development of clinical recurrence of FSGS. ⋯ FP effacement can be observed within minutes after reperfusion in renal transplantation of recipients with FSGS that will ultimately develop recurrent FSGS. This suggests a key role for the podocyte injury in the pathogenesis of recurrent FSGS and further supports the presence of circulating factors causing FP effacement. The FP effacement score in the postreperfusion KT biopsy may become a useful predictive test if validated in larger studies.
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Urinary neutrophil gelatinase-associated lipocalin (NGAL) has emerged an early marker protein, predicative of acute kidney injury (AKI) in various clinical settings. Here, we demonstrate urinary NGAL to allow for differential diagnosis of AKI, accurately discriminating acute allograft rejection from other causes of AKI in renal allograft recipients. ⋯ Urinary NGAL, at respective cut-off, accurately discriminates acute allograft rejection from other causes of AKI in follow-up after kidney transplantation. As a readily available parameter, urinary NGAL may guide differential diagnosis and initial therapy in allograft recipients with AKI.
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Review Meta Analysis
Alemtuzumab induction therapy in kidney transplantation: a systematic review and meta-analysis.
Alemtuzumab (MabCampath or Campath; Genzyme, Cambridge, MA) is a CD52-specific monoclonal antibody that causes profound and sustained lymphocyte depletion. Its use as an induction therapy in organ transplantation is increasing. Since our last systematic review in 2006, where we identified the need for good-quality randomized controlled trials (RCTs), several RCTs have been published that examine its efficacy and safety in kidney transplantation. The aim of this study was to evaluate the current evidence for alemtuzumab induction therapy in kidney transplantation. ⋯ Alemtuzumab induction reduces the risk of BPAR compared with IL-2RAs but not rATG. Because the incidence of other efficacy outcomes (graft loss, DGF, and patient death) was similar, if it is felt that an induction agent is necessary, then our analysis suggests that it is more acceptable to base the choice of induction agent on safety outcomes and/or costs.
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Among 18 face transplantations (FTs) performed worldwide, seven were performed at the Henri Mondor Hospital, Paris, France. Their feasibility and risk-benefit ratios have been reported, whereas this study analyzed the costs of FT for our first five patients. ⋯ In our institution, the transplantation of a face led to higher costs than heart or any other solid organ and represented twice the costs faced for a liver transplantation. FT is currently performed in a research setting, and cost might decrease with teams' experiences, which may shorten postoperative intensive care and overall hospital stays.