Defining an NK Cell-enriched Rejection-like Phenotype in Liver Transplant Biopsies From the INTERLIVER Study.

Background: Initial analysis of liver transplant biopsies in the INTERLIVER study (ClinicalTrials.gov; unique identifier NCT03193151) using rejection-associated transcripts failed to find an antibody-mediated rejection state (ie, rich in natural killer [NK] cells and with interferon-gamma effects). We recently developed an optimization strategy in lung transplants that isolated an NK cell-enriched rejection-like (NKRL) state that was molecularly distinct from T cell-mediated rejection (TCMR).

Non-operative treatment for simple acute appendicitis (NOTA) in children during the COVID-19 era: new lessons from the pandemic.

Coronavirus (COVID-19) was a pandemic disease that was affecting our medical and surgical daily practice badly. The surgical management of acute appendicitis was the gold standard, but new studies suggest the safety of antibiotic treatment alone. Non-operative treatment for simple acute appendicitis (NOTA) avoids surgery, the risks of general anesthesia, and long hospital stays.

Microchimerism as Post-Transplant Marker of a Chronic Rejection Process.

The risk of losing a transplanted organ is high, and non-invasive markers to warn of this phenomenon are still being sought. We investigated the impact of post-transplant microchimerism on the function of the transplanted kidney. The study included 100 kidney transplant recipients, mostly women.

Clinical Relevance of Gut Microbiota Alterations under the Influence of Selected Drugs-Updated Review.

As pharmacology and science progress, we discover new generations of medicines. This relationship is a response to the increasing demand for medicaments and is powered by progress in medicine and research about the respective entities. However, we have questions about the efficiency of pharmacotherapy in individual groups of patients.

Late Recurrence of Hepatocellular Carcinoma in a Patient 10 Years after Liver Transplantation Unrelated to Transplanted Organ.

Liver transplantation (LTx) is an accepted method of hepatocellular carcinoma (HCC) treatment in cirrhotic patients; however, it has many limitations, and there is a substantial risk of recurrence. Most relapses occur within the first 2 posttransplant years. We aimed to present a late extrahepatic recurrence of HCC 10 years after LTx, and we discuss the possible risk factors and ways to improve transplantation results.

Incidents and risk factors of biliary complications after orthotropic liver transplantation.

Biliary complications (BC) especially stenosis and strictures are the most common complications after orthotropic liver transplantation (OLT) procedure in adult recipients. The intention of this study was analyzed BC in 273 patients after OLT for the last 4 years in our department.Retrospective study of 273 patients underwent cadaveric donor liver transplantation between January 2014 and December 2017.

Persisting bleeding from the duodenal ulcer in patients with occlusion of the celiac trunk: a case report.

Endoscopic measures have continued to be the primary procedures in the management of ulcer bleeding. Nevertheless, in cases of failed endoscopic hemostasis and re-bleedings, endovascular techniques have gradually gained increased acceptance as an alternative to surgery, allowing to avoid surgical intervention in some cases. <br/> Case report: A case of a 42-year-old patient presenting to the authors' institution with massive bleeding from the duodenal ulcer, sprang from a pathologically enlarged gastroduodenal artery is reported.

Protein Abundance of Hepatic Drug Transporters in Patients With Different Forms of Liver Damage.

Hepatocellular transporter levels were quantified using quantitative reverse transcription polymerase chain reaction and liquid chromatography-tandem mass spectrometry methods. Liver function deterioration (Child-Pugh class C) produced significant protein abundance (mean values) increase (to healthy livers) in P-gp (to 260% (CV (coefficient of variation) 82%)) and MRP4 (CV 230%) (not detected in healthy livers), decrease in MRP2 (to 30% (CV 126%)), NTCP (to 34% (CV 112%)), OCT1 (to 35% (CV 153%)), OATP1B1 (to 46% (CV 73%)), and OATP2B1 (to 27% (CV 230%)), whereas BSEP (CV 99%), MRP3 (CV 106%), OAT2 (CV 97%), OCT3 (CV 113%), and OATP1B3 (CV 144%) remained unchanged. Alcoholic liver disease produced significant protein downregulation of MRP2 (to 30% (CV 134%)), NTCP (to 76% (CV 78%)), OAT2 (to 26% (CV 117%)), OATP1B1 (to 61% (CV 76%)), OATP1B3 (to 79% (CV 160%)), and OATP2B1 (to 73% (CV 90%)) of healthy tissue values.

Recurrence of Hepatocellular Carcinoma After Liver Transplantation: A Single-Center Experience.

BACKGROUND There is a worldwide increase in use of liver transplantation (LT) for treatment of hepatocellular carcinoma (HCC). We analyzed our experience with LT for HCC to determine long-term and recurrence-free survival, accuracy of imaging diagnosis of HCC compared to the explant pathology, recurrence rate of HCC, and predictors of recurrence. MATERIAL AND METHODS The whole explant was examined by the same pathologist and compared with the baseline diagnosis established according to clinical, laboratory, and radiological data.

Biocompatibility of synthetic ultraviolet radiation cross-linked polymers - Subcutaneous implantation study.

Photo-cross-linked polymers have attracted a lot of attention in the biomedical field. The main benefits of these materials are related to the fact that they are most of the time viscous liquids or pastes that adapt a custom and fixed shape on demand of the user. Present study deals specifically with the biological response upon subcutaneous implantation of four different materials in rabbits.

Alcohol Relapse After Liver Transplantation: Younger Women Are at Greatest Risk.

Background: Alcoholic cirrhosis is an indication for 40% of liver transplantations (LT) in Europe. In most centers, 6 months of abstinence is required before listing. However, alcohol recidivism is quite high after LT, and approximately 20–25% of recipients with ALD resume harmful drinking, resulting in liver insufficiency, which casts doubt on the 6-months rule as a reliable marker of abstinence maintenance after LT.

Application of Fully Covered Self-Expandable Metallic Stents with and without Antimigration Waist Versus Repeated Plastic Biliary Stent Placement in Management of Anastomotic Biliary Strictures After Orthotopic Liver Transplantation.

BACKGROUND Standard methods for endoscopic retrograde cholangiopancreatography (ERCP) management of anastomotic strictures (AS) after OLT includes repeated balloon dilation of the stricture with subsequent insertion of a plastic biliary stent (PBS). In post-OLT patients not responding to standard endoscopic treatment, the placement of fully covered self-expanding metal stents (FCSEMS) is a valid alternative to surgical treatment. The aim of this study was to compare the results of new FCSEMS implantation with the standard ERCP stricture management protocol and with conventional FCSEMS insertion.

Impact of antiviral treatment on survival in HCV-positive liver recipients.

Background: Sequels of chronic HCV infection are currently one of the most common indications for liver transplantation (LTx). Because HCV reinfection and allograft injury are inevitable, it may influence survival. Earlier studies have not reported higher mortality among HCV-infected patients, but cumulative data seem to contradict these findings.

Vascular complications following adult piggyback liver transplantation with end-to-side cavo-cavostomy: a single-center experience.

Background: Vascular complications remain a significant cause of morbidity, graft loss, and mortality following orthotopic liver transplantation (OLT). These problems predominantly include hepatic artery and portal vein thrombosis or stenosis. Venous outflow obstruction may be specifically related to the technique of piggyback OLT.

Laparoscopic live-donor nephrectomy with retroperitoneoscopic access - first case experience.

Background: Despite observed huge progress in understanding the immunological basis of transplantation and the development of new immunosuppressive agents that have significantly improved both -- the patient and graft survival, still the kidney donation from live volunteers remains the most consistent factor which affects the long-term survival. The conventional, open method of donor nephrectomy is associated with significant surgical trauma. The laparoscopic live-donor nephrectomy (LDN) is the alternative for open approach.

Biliary complications following adult liver transplantation with routine use of external biliary drainage.

Objectives: Biliary complications are still common and often related to the use of biliary drains in liver transplant setting. We analyzed the incidence, treatment and outcome of biliary complications following adult orthotopic liver transplantation (OLTx) performed between February 2002 and October 2004.

Methods: Overall there were 46 OLTx performed in 44 patients.

Liver transplantation for fulminant hepatic failure without venovenous bypass and without portacaval shunting.

Preservation of the caval vein during liver transplantation (OLT) has gained wide acceptance but portosystemic bypass or temporary portocaval shunt is still believed to be indicated in patients with fulminant hepatic failure. Herein we have described our initial experience with piggyback OLT without venovenous bypass and without portocaval shunting in five such patients. Division of the portal vein was always delayed until the native liver was completely dissected off the caval vein.

[Current status of liver transplantation].

The authors present current status of liver transplantation (LTx) in Poland. Till 2004, 845 LTx were performed: 604 in adults and 241 in children; 71 of them were the living donor LTx. Post-inflammatory cirrhosis in adults and biliary atresia in children were the most common indications for LTx.

Early results of a new liver transplant program in Szczecin, Poland.

New liver transplant programs have usually been associated with a significant learning curve. This learning curve, however, can be minimized or avoided if certain conditions are met. In this paper we describe the establishment of a new liver transplant program in Szczecin, Poland and present its early results.

Rapid correction of prothrombin time after low-dose recombinant factor VIIA in patients undergoing orthotopic liver transplantation.

Orthotopic liver transplantation (OLTx) is associated with a major risk of blood loss resulting from portal hypertension, collateral circulation, and clotting disturbances. Application of a recombinant factor VIIa (rFVIIa) has been reported to promptly correct clotting abnormalities reducing the risk of intraoperative bleeding. This study included 8 patients who underwent OLTx for end-stage liver cirrhosis, with protrombin times (PT) exceeding the upper limit of normal by more than 4 seconds before surgery.