Abstract:
BACKGROUND:Gastrointestinal (GI) complications are common after renal transplantation, mainly owing to immunosuppressive therapy. Assessment of GI transit time can facilitate rational management of these disorders. OBJECTIVE:We evaluate the GI transit parameters in renal transplant recipients taking tacrolimus, azathioprine, and prednisone with the use of the alternate current biosusceptometry (ACB) technique and compared them with healthy volunteers. METHODS:Ten renal transplant recipients and 10 healthy volunteers were enrolled in this study. After an overnight fast, patients and volunteers ingested a standard meal containing magnetic markers. The biomagnetic monitoring was performed at 10-minute intervals for at least 8 hours to obtain gastric emptying as well as the colonic arrival time-intensity curves. Mean gastric emptying time (MGET), mean colon arrival time (MCAT), and mean small intestinal transit time (MSITT) were quantified and compared between control and patient groups with results expressed as mean ± SD. RESULTS:The MGET measured by the ACB technique was 48 ± 31 minutes and 197 ± 50 minutes for patients and healthy subjects, respectively. MSITT and MCAT values calculated for patients versus volunteers were 171 ± 71 minutes versus 197 ± 71 minutes and 219 ± 83 minutes versus 373 ± 52 minutes, respectively. Renal transplant recipients showed significantly faster; gastric emptying and colon arrival times (P < .001) compared with normal volunteers; however, small intestinal transit time was not significantly different (P = .44). CONCLUSIONS:In stable renal transplant recipients, the GI transit parameters were significantly faster than in normal healthy volunteers. ACB sensors are versatile technologies that can be used for clinical research, because they offer an excellent opportunity to evaluate GI transit in a noninvasive manner without the use of ionizing radiation.
journal_name
Transplant Procjournal_title
Transplantation proceedingsauthors
Teixeira MC,Magalhães I,Galvão PV,Souza GS,Miranda JR,Oliveira RB,Corá LAdoi
10.1016/j.transproceed.2012.07.048subject
Has Abstractpub_date
2012-10-01 00:00:00pages
2384-7issue
8eissn
0041-1345issn
1873-2623pii
S0041-1345(12)00744-0journal_volume
44pub_type
杂志文章abstract::Although long-term outcomes have improved, graft loss caused by chronic allograft nephropathy remains an important obstacle. This situation, together with the progressive increase in the number of renal transplant patients, means that the population of transplant patients readmitted to a dialysis program will be progr...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2009.06.135
更新日期:2009-07-01 00:00:00
abstract::Although a generalized consensus has been reached for therapeutic drug monitoring of cyclosporine microemulsion in adult transplant patients, clear guidelines are recently not available for the pediatric population. In this retrospective analysis of pharmacokinetic data obtained from stable, long-term, pediatric kidne...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2004.03.010
更新日期:2004-04-01 00:00:00
abstract::Prolonged cold ischemia time (CIT) during graft preservation and warm ischemia time (WIT) during rewarming time have been reported to cause postoperative graft dysfunction after orthotopic liver transplantation (OLT). However, the effects of both CIT and WIT in combination on patient and graft survivals are not yet de...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2004.08.068
更新日期:2004-09-01 00:00:00
abstract:INTRODUCTION:Recent evidence has demonstrated that the immune response and, more specifically, lymphocytes (T and B) and dendritic cells participate as mediators of renal ischemia reperfusion injury (IRI). The aim of this study was, therefore, to evaluate the effect of various immunosuppressive drugs with known activit...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2009.11.018
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Hepatic ischemia/reperfusion (I/R) injury is a serious complication that occurs in surgical operations such as hepatectomy and liver transplantation. NF-E2-related factor 2 (Nrf2) is a transcription factor that has been proven against inflammatory and oxidative injury. Tert-butylhydroquinone (tBHQ), a widely...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2016.12.008
更新日期:2017-03-01 00:00:00
abstract::Encapsulating peritoneal sclerosis is a serious complication of peritoneal dialysis and can occur even after transplant. The gut is partially or totally enveloped by a thick fibrous membrane that leads to the formation of multiple sections containing intestinal loops contracted and reduced in volume. Exacerbation afte...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2014.07.060
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND:The rising demand for living renal donors has led to the recruitment of older donors. Findings vary, but these grafts appear to survive as long as grafts from standard criteria deceased and expanded criteria deceased donors. We investigated the effects of donor age ≥65 years and the presence or absence of do...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2018.08.046
更新日期:2018-12-01 00:00:00
abstract:BACKGROUND:In the Model for End-Stage Liver Disease (MELD) system, patients with "MELD exceptions" points may have unfair privilege in the competition for liver grafts. Furthermore, organ distribution following identical ABO blood types may also result in unjust organ allocation. The aim of this study was to investigat...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2018.02.020
更新日期:2018-04-01 00:00:00
abstract:BACKGROUND:BK virus (BKV) nephropathy (BKVN) is an increasingly recognized cause of kidney allograft loss and is thought to be related to the newer, more potent immunosuppressive agents. However, the risk factors for different types of BKV infection under the impact of intensive monitoring and reduction of maintenance ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2014.08.036
更新日期:2014-12-01 00:00:00
abstract:UNLABELLED:Organ rejection and inflammation are accompanied by endothelial cell activation. An in vitro model with patient-specific endothelial cells was used to study the impact of mTOR inhibitors on cell growth and release of proinflammatory cytokines. MATERIAL AND METHODS:Confluent monolayers of human saphenous vei...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2004.12.140
更新日期:2005-01-01 00:00:00
abstract::Dendritic cells (DC) exhibit remarkable plasticity in terms of their ability to induce and regulate innate and adaptive immune responses. Human and mouse interferon alpha-producing plasmacytoid (p) DC have been found to regulate allogeneic T cell responses in vitro. Evidence is emerging that pDC may also regulate immu...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2005.09.111
更新日期:2005-11-01 00:00:00
abstract:OBJECTIVE:Orthotopic liver transplantation (OLT) in rats is frequently used as an experimental model. Numerous surgical techniques have been developed that enable the investigator to conduct clinically relevant studies. The objective of this study was to develop a rat model of acute and chronic rejection, to explicitly...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2009.06.024
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:In paired living kidney exchange donation from an old donor to a young recipient, it may be argued that elderly donors provide an inferior quality kidney. However, the impact of donors older than recipients on transplant outcomes remains unclear. METHODS:We retrospectively reviewed the charts of primary liv...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2011.12.013
更新日期:2012-01-01 00:00:00
abstract::Pre-BTs significantly improve the survival rate for first cadaver transplants, by a mechanism that remains obscure. The maximal influence is seen with smaller numbers of pre-BTs (1-5 units), but is also observed with larger numbers of pre-BTs. The possible beneficial influence of Tx-BTs on graft survival is not proven...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:
更新日期:1982-06-01 00:00:00
abstract:OBJECTIVES:Organ preservation is one of the important steps that predicts the patient outcome. However, after revascularization, the high concentration of potassium that influxes into the circulation might cause immediate postreperfusion hyperkalemia. To prevent this complication, the portal vein has been washed out wi...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2008.06.035
更新日期:2008-09-01 00:00:00
abstract::Left ventricular assist device (LVAD) management is very challenging since many adverse events can occur in ongoing patients. Inadequate anticoagulation treatment can lead to life-threatening situations like ischemic stroke or pump thrombosis. The main intention of our study was to investigate if early identification ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2019.04.099
更新日期:2019-11-01 00:00:00
abstract:BACKGROUND:We describe an observational, retrospective study that included patients who underwent a liver transplantation (LT) for hepatocellular carcinoma (HCC) in our center between 2004 and 2012. METHODS:Clinical variables were recorded for donors and recipients as diagnosis and treatment, immunosuppressive therapy...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2015.08.020
更新日期:2015-10-01 00:00:00
abstract:UNLABELLED:Pancreas transplant (Ptx) is the gold standard for the treatment of type I diabetes, mainly when associated with renal failure. The number of Ptx is increasing worldwide, but in developing countries, such as Brazil, the number of centers is small and transplant surgeons need to practice the technique. METHO...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2006.06.056
更新日期:2006-07-01 00:00:00
abstract:PURPOSE:The purpose of this study was to evaluate donor pain and pain management beginning immediately postoperatively until hospital discharge. METHODS:All kidney donors were included from 2008 and 2009. Demographic data, operative data, pain scores in the postanesthesia care unit, and visual analog pain scale (VAS) ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2011.06.038
更新日期:2011-09-01 00:00:00
abstract:BACKGROUND:Anesthetic management of patients during renal transplantation is vitally important for ensuring proper functioning of kidneys that have undergone ischemia-reperfusion damage. The goal of this prospective study was to compare the effects of 2 different inhalation agents (sevoflurane and desflurane) on grafte...
journal_title:Transplantation proceedings
pub_type: 临床试验,杂志文章
doi:10.1016/j.transproceed.2017.01.014
更新日期:2017-04-01 00:00:00
abstract::Immunosuppressive regimens in the early precyclosporine days of liver transplantation for the Cambridge-King's Programme from 1968 until the early 1980s were inadequate in the control of rejection. The consequent use of high-dose steroids led to many infections, which seriously affected outcome. Nevertheless, occasion...
journal_title:Transplantation proceedings
pub_type: 历史文章,杂志文章
doi:10.1016/j.transproceed.2004.01.007
更新日期:2004-03-01 00:00:00
abstract::The delayed contralateral nephrectomy procedure (three-step) produced inconsistent results, indicating that the preserved autotransplanted kidney tends to remain unfunctional and to regenerate incompletely unless the demand for work is placed upon it. Omission of HES in UW (UW-plain) did not affect preservation succes...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract:BACKGROUND:The incidence of end-stage renal disease (ESRD) after liver transplant (LT) has increased. The actual benefit of kidney transplantation (KT) is not completely understood in LT recipients with ESRD. METHODS:We analyzed Scientific Registry of Transplant Recipients data for all KT candidates with prior LT from...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2017.11.009
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Ascites is the most common complication of cirrhosis and indicates that the disease is at an advanced stage. In cirrhotic patients with refractory ascites, treatment is based on repeat paracentesis. The objective of this study is to evaluate the cost of paracentesis in cirrhotic patients and to determine the...
journal_title:Transplantation proceedings
pub_type: 临床试验,杂志文章
doi:10.1016/j.transproceed.2014.05.017
更新日期:2014-07-01 00:00:00
abstract::Transplantation in patients with congenital bleeding disorders is a challenge requiring an integrated approach of various specialists. Renal transplantation, the most frequent type of solid organ transplantation, is rarely performed in individuals with congenital hemorrhagic disorders. We performed a renal transplanta...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2012.07.001
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:The aim of this study was to identify predictors of overall survival (OS), disease-free survival (DFS), and recurrence in a cohort of 151 patients with hepatocellular carcinoma (HCC) and cirrhosis who were treated by liver transplantation (LT). PATIENTS AND METHODS:A retrospective database of patients under...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2016.04.002
更新日期:2016-07-01 00:00:00
abstract::To study whether ischemic preconditioning (IPC) attenuated intestinal dysfunction caused by ischemia (I) and reperfusion (R), rats were underwent 60 minutes of I which was produced by occlusion of the superior mesenteric artery, and/or 120 minutes R. The IPC group had the I procedure previously stimulated for 5 minute...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2012.07.056
更新日期:2012-10-01 00:00:00
abstract:BACKGROUND:Persistent or "de novo" anemia (plasma hemoglobin<11 g/dL) may complicate the graft outcome in a significant number of renal transplant recipients. We describe a single-center experience with epoetin-zeta (EPO-Z), the biosimilar form for epoetin-alfa. METHODS:Twenty patients were included in the study, 10 i...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2014.07.027
更新日期:2014-09-01 00:00:00
abstract::Ventricular assist devices (VAD) have benefitted patients with end-stage heart failure as a bridge to heart transplantation (HTx). We present our experience with HTx after an extracorporeal membrane oxygenation (ECMO) hybrid with various ventricular assist devices (VAD). From May 1996 to December 2003, mechanical circ...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2006.06.052
更新日期:2006-09-01 00:00:00
abstract:BACKGROUND:QT interval prolongation has frequently been observed in patients with advanced liver disease. We investigated the influence of inhalation anesthetics on the corrected QT (QTc) interval prolongation during surgery in patients undergoing living-donor liver transplantation. METHODS:Our study included 43 patie...
journal_title:Transplantation proceedings
pub_type: 杂志文章
doi:10.1016/j.transproceed.2015.12.034
更新日期:2016-01-01 00:00:00