Abstract:
:Artificial neural network, a computer-based technology that uses nonlinear statistics to recognize the relationship between input variables and an output variable, has been previously applied to outcome prediction in adult kidney recipients. In this study, we evaluated the effectiveness of a neural network model to predict a delayed decrease of serum creatinine in pediatric kidney recipients. The neural network was constructed with a training set of pediatric kidney recipients (n = 107) by using 20 input variables and assuming for the output variable, the time after 3 days to reach a serum creatinine level 50% below that before kidney transplantation. In the final model, the following input variables showing higher predictive values were retained: serum creatinine on day 1 post transplant, urine volume in the first 24 hours, diagnostic category, pretransplant dialysis mode, patient sex, donor sex, body weight on day 1 posttransplant, and patient age. The model was validated in a second set of patients (n = 41) by blinding the network for the output variable. The overall accuracies of the neural network for the training set, the validation set, and the whole patient cohort were 89.1%, 76.92%, and 87.14%, respectively. A comparative logistic regression analysis revealed only serum creatinine on day 1 posttransplant to be an independent predictor for the output variable (overall accuracy: 79.05%). The neural network showed sensitivity and specificity for the whole patient cohort to be 0.875 and 0.87, respectively, whereas using logistic regression sensitivity and specificity yields 0.37 and 0.94, respectively. This study proposes a neural network model that seemed to predict a delayed decrease in serum creatinine among pediatric kidney recipients. The availability of the source code may allow development of stand-alone neural networks to validate our model in prospective studies.
journal_name
Transplant Procjournal_title
Transplantation proceedingsauthors
Santori G,Fontana I,Valente Udoi
10.1016/j.transproceed.2007.05.026subject
Has Abstractpub_date
2007-07-01 00:00:00pages
1813-9issue
6eissn
0041-1345issn
1873-2623pii
S0041-1345(07)00605-7journal_volume
39pub_type
杂志文章abstract:BACKGROUND:The objective of this study was to explore the donor and recipient factors related to the spectral Doppler parameters of the transplant kidney in the early posttransplantation period. METHODS:This retrospective study included 76 patients who underwent renal transplantation assessed using Doppler ultrasonogr...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2011.12.069
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Corrected flow time (FTc) has been utilized as preload indicator in recent literature. Accurate estimation of preload status during living donor liver donation (LDLD) is important due to fluid restriction. We evaluate the effectiveness of FTc as a surrogate of preload indicator during LDLD. MATERIALS AND ME...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2013.11.021
更新日期:2014-04-01 00:00:00
abstract:OBJECTIVES:The complement-dependent lymphocytotoxicity crossmatch (CDC-XM) detects cytotoxic parameters of preformed antibodies. The flow cytometric crossmatch (FCXM) is used to detect the binding of recipient antibodies to donor cells. Because these two assays provide different information, both methods are often perf...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2011.11.024
更新日期:2012-01-01 00:00:00
abstract::The pathogenesis of ischemia-reperfusion injury is known to involve cytokines and particularly surface adhesion molecules, the expression of which initiates the attachment of inflammatory cells. Peroxisome proliferator-activated receptor (PPAR)-gamma is considered an important immunomodulatory factor as well as a fatt...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2005.02.068
更新日期:2005-05-01 00:00:00
abstract::Subjective global assessment (SGA) of nutritional status is a widely used and validated method for identifying and classifying malnutrition. It has been thought that this semiquantitative feature restricts the reliability and precision of the SGA. Recently, in an effort to assess nutritional status, a modified quantit...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2008.10.036
更新日期:2009-01-01 00:00:00
abstract::Campath-1H is being used as induction immunosuppression for intestinal/multivisceral transplantation. Patient and graft survival in this preliminary experience is similar to previous studies but there has been a significant decrease in the incidence and severity of acute rejections without increase of opportunistic in...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/s0041-1345(03)00734-6
更新日期:2003-08-01 00:00:00
abstract:INTRODUCTION:Tumor necrosis factor (TNF)-alpha mediates inflammation and apoptosis in ischemia-reperfusion (IR) injury of the kidneys. Etanercept, a soluble TNF-alpha receptor, has shown anti-inflammatory and anti-apoptotic effects in several animal models of renal injury, including chronic insufficiency and unilateral...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2009.05.042
更新日期:2009-11-01 00:00:00
abstract:CONTEXT:The use of pediatric donors can increase the number of donors available for pancreas transplantation. AIM:The aim of this study was to verify if pancreas transplantation from pediatric donors is as effective as transplantation from adult donors to restore metabolic control in type 1 diabetic patients. MATERIA...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2010.05.120
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to investigate the regenerative potential of hyaline cartilage in a neocartilage graft implant with the aid of MR cartilage imaging using a rabbit model. METHODS:Surgical osteochondral defects were created in the femoral condyles of 30 mature New Zealand rabbits. The findings o...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2003.10.019
更新日期:2003-12-01 00:00:00
abstract::A better understanding of tumor factors influencing patient and graft survival and recurrence of hepatocellular carcinoma (HCC) associated with hepatitis C virus (HCV) cirrhosis may be useful to maximize the benefits of liver transplantation (OLT). Sixty-three adults underwent OLT for end-stage liver disease secondary...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2008.09.022
更新日期:2008-11-01 00:00:00
abstract:INTRODUCTION:Posttransplant cardiovascular disease (CVD) is the leading cause of death in renal transplant (RT) recipients and is more evident in recipients with transplants from expanded criteria donors (ECD). OBJECTIVES:We analyzed the evolution of cardiovascular risk factors and their association with patient morta...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2012.09.086
更新日期:2012-11-01 00:00:00
abstract::Older donors are a growing part of the total pool but no definite consensus exists on the age limit for their acceptance. This retrospective case-control unicenter study compared the outcomes of 72 orthotopic liver transplantations (OLTs) from April 1990 to April 2010 using donors older than 70 years versus 738 chrono...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2011.05.016
更新日期:2011-07-01 00:00:00
abstract:INTRODUCTION:Despite excellent outcomes of kidney paired donation (KPD), little is known about how a patient's frame (apply cognitive bias) or weight (attribute value) and concerns relating to risk, justice, and equity affect his or her decision-making process. MATERIALS AND METHODS:A pilot study consisting of 3 KPD t...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2018.02.079
更新日期:2018-06-01 00:00:00
abstract::In this study, pretransplant transfusions significantly improved the survival of first cadaver kidney transplants. Large numbers of transfusions had the same influence on graft survival as small number of transfusions. Graft survival was not influenced by pretransplant antibody levels, and the beneficial effect of tra...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:
更新日期:1981-03-01 00:00:00
abstract::The aim of this study was to evaluate the impact of sirolimus and cyclosporine (CsA) combined therapy on the incidence and duration of delayed graft function (DGF), and the impact of the latter on 1-year graft function. The study entailed 23 cadaveric renal recipients treated with sirolimus-CsA-prednisone regimen (sir...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2004.12.010
更新日期:2005-03-01 00:00:00
abstract:BACKGROUND:Fabry's disease (FD) is an inborn error of glycosphingolipid catabolism with progressive systemic deposition of globotriaosylceramide thereby leading to renal and cardiac failure. Current therapy involves symptomatic medical management, dialysis, enzyme replacement therapy, kidney transplantation (KTx), and ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2005.11.021
更新日期:2005-12-01 00:00:00
abstract::Pancreatic islet cell transplantation is a promising approach to restoring normoglycemia in diabetic patients. The outcome of islet transplantation is uncertain for two reasons: The quality of isolated islets is still poorly defined and the functional potential of transplanted islets is difficult to predict. Therefore...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2005.09.076
更新日期:2005-10-01 00:00:00
abstract::Alcoholic liver disease (ALD) is a leading indication for liver transplantation (LT) in Western countries. The rate of resumption of alcohol abuse is 7% to 95% after LT for ALD. A high prevalence of alcohol abuse has been observed in disaster-exposed populations; however, little is known about the association between ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2013.09.048
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:Hepatic artery thrombosis (HAT) occurs in 3% to 9% of all liver transplantations with acute graft failure as a possible sequel. METHODS:Eleven episodes of HAT were identified among 256 orthotropic liver transplantations (whole, LDCT, split) performed on 253 patients between April 1993 and July 2006. HAT was...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2007.02.017
更新日期:2007-05-01 00:00:00
abstract:OBJECTIVE:Acute cellular rejection in heart transplants is characterized by an active lymphocytic infiltration, whereas the humoral response shows complement deposits in myocardial tissue. Both reactions may produce hemodynamic compromise during the first months after orthotopic heart transplantation (OHT). The aim of ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2009.08.028
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:A severe shortage in donor organs is the major driver for organ transplantation-related crimes. The Declaration of Istanbul 2008 (DOI) was created to stop such crimes. We investigated the impact of DOI on Internet reporting of transplantation-related crimes. METHODS:We conducted Google Advanced Searches to ...
journal_title:Transplantation proceedings
pub_type: 杂志文章,meta分析
doi:10.1016/j.transproceed.2019.10.011
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Biliary stones after liver transplantation (LT) rarely occur but a focus on those complications and their treatment is needed. PATIENTS AND METHODS:In total, 390 adult patients who underwent an LT from July 2004 to July 2014 entered the study. Biliary complications and notably biliary stones after LT were i...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2015.12.052
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND:Immunosuppressants such as tacrolimus and cyclosporine are prescribed long-term after orthotopic liver transplantation (OLT) to prevent allograft rejection. Although these immunosuppressants are known to effectively control ulcerative colitis (UC), some post-OLT patients develop exacerbation of preexisting U...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2014.02.016
更新日期:2014-09-01 00:00:00
abstract:INTRODUCTION:Diagnosis of thyroid disease is fundamental in the evaluation of patients awaiting kidney transplantation. We analyzed the incidence of thyroid disease in patients with end-stage renal disease (ESRD) and evaluated its evolution before and after kidney transplantation. PATIENTS AND METHODS:Between January ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2009.03.014
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Introduction of rituximab in the desensitization protocols for ABO-incompatible (ABOI) kidney transplantation (KTX) has afforded excellent results. However, the acceptability of minimal dosage of rituximab in these protocols remains to be defined. METHODS:Sixty-three patients who underwent ABOI KTX were inc...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2020.10.023
更新日期:2020-11-30 00:00:00
abstract::The aim of this study was to evaluate cyclosporine (CyA) absorption profiles in heart transplantation to establish the most adequate monitoring strategy and determine the optimal therapeutic range for AUC(0-4) or C2 levels. A total of 22 full pharmacokinetic studies were performed at steady-state in 22 adult heart tra...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/s0041-1345(03)00657-2
更新日期:2003-08-01 00:00:00
abstract:BACKGROUND:Laparoscopic donor nephrectomy has become the preferred method for live kidney donation in many centers. Herein we have reported on donor-related quality of life (QoL) and social state after laparoscopic hand-assisted nephrectomy (HALDN) for living kidney donation. PATIENTS AND METHODS:Between December, 200...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2010.01.078
更新日期:2010-06-01 00:00:00
abstract::Hepatocyte and various hepatic stem cell transplantations have been studied as alternative therapies to orthotopic liver transplantation for liver injury. The engraftment of transplanted cells into the parenchyma requires transmigration through sinusoidal endothelial cells (SECs), the only cellular barrier. In this st...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2012.03.007
更新日期:2012-05-01 00:00:00
abstract:BACKGROUND:Cardio-cerebrovascular diseases are key factors causing recipient the death after kidney transplantation (KT). Hypertriglyceridemia (HTG), a complication commonly occurring among KT patients, is a major risk factor for cardio-cerebrovascular diseases. The objective of this study was to examine the correlatio...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2013.08.022
更新日期:2013-11-01 00:00:00
abstract::The modern surgical era of vascularized pancreas transplantation (PTX) began with the systemic-bladder drainage technique. According to International Pancreas Transplant Registry (IPTR) data, most PTX procedures are performed with systemic venous delivery of insulin and either bladder (systemic bladder) or enteric (sy...
journal_title:Transplantation proceedings
pub_type: 杂志文章,评审
doi:10.1016/j.transproceed.2004.12.210
更新日期:2005-03-01 00:00:00