Juliane Liese

Posthepatectomy liver failure.

Background: Posthepatectomy liver failure (PHLF) is one of the most serious complications after liver resection and is still reported in up to 8% after liver resection. Aims: To provide an overview about the current status of risk analysis and definition of PHLF. Prevention and treatment is also discussed. Methods: A literature review was carried out on PubMed using the terms ‘liver failure’, ‘posthepatectomy’ and ‘liver surgery’ to search relevant papers. Discussion: PHLF remains a serious problem in patients undergoing major liver resection. Adequate preoperative risk assessment and an optimal postoperative treatment are essential for PHLF prevention.

A possible role of microRNAs as predictive markers for the recurrence of hepatocellular carcinoma after liver transplantation

With favourable 5‐year survival rates up to 75%, liver transplantation (LT) is the treatment of choice for hepatocellular carcinoma (HCC). Nonetheless, tumour recurrence after LT remains a challenge. The aim of this retrospective study was to develop a predictive score for tumour recurrence after LT by combining clinical parameters with HCC biomarkers (microRNA). A microRNA (miRNA) microarray analysis was used to compare miRNA expression patterns in tissue samples of 40 patients with and without HCC recurrence after LT. In a screening cohort (n = 18), the miRNA analysis identified significant differences in the expression of 13 miRNAs in patients with tumour recurrence. Using the most significant miRNAs in this screening cohort, we could develop a predictive score, which combined the expression levels of miR‐214, miR‐3187 and the Milan criteria, and we could define low‐ and high‐risk groups for tumour recurrence and death. The above score was evaluated in a second and independent cohort (n = 22). In contrast to the Milan criteria alone, this score was significantly associated with tumour recurrence. Our analysis indicated that the use of a specific miRNA expression pattern in combination with a limited tumour burden as defined by the Milan criteria may lead to a more accurate prediction of tumour recurrence.

MicroRNA Profiling of Laser-Microdissected Hepatocellular Carcinoma Reveals an Oncogenic Phenotype of the Tumor Capsule

Several microRNAs (miRNAs) are associated with the molecular pathogenesis of hepatocellular carcinoma (HCC). However, previous studies analyzing the dysregulation of miRNAs in HCC show heterogeneous results. We hypothesized that part of this heterogeneity might be attributable to variations of miRNA expression deriving from the HCC capsule or the fibrotic septa within the peritumoral tissue used as controls. Tissue from surgically resected hepatitis C–associated HCC from six well-matched patients was microdissected using laser microdissection and pressure catapulting technique. Four distinct histologic compartments were isolated: tumor parenchyma (TP), fibrous capsule of the tumor (TC), tumor-adjacent liver parenchyma (LP), and cirrhotic septa of the tumor-adjacent liver (LC). MiRNA expression profiling analysis of 1105 mature miRNAs and precursors was performed using miRNA microarray. Principal component analysis and consecutive pairwise supervised comparisons demonstrated distinct patterns of expressed miRNAs not only for TP versus LP (e.g., intratumoral down-regulation of miR-214, miR-199a, miR-146a, and miR-125a; P< .05) but also for TC versus LC (including down-regulation within TC of miR-126, miR-99a/100, miR-26a, and miR-125b; P< .05). The tumor capsule therefore demonstrates a tumor-like phenotype with down-regulation of well-known tumor-suppressive miRNAs. Variations of co-analyzed fibrotic tissue within the tumor or in controls may have profound influence on miRNA expression analyses in HCC. Several miRNAs, which are proposed to be HCC specific, may indeed be rather associated to the tumor capsule. As miRNAs evolve to be important biomarkers in liver tumors, the presented data have important translational implications on diagnostics and treatment in patients with HCC.

Role of CD15 expression in dysplastic and neoplastic tissue of the bile duct – a potential novel tool for differential diagnosis of indeterminate biliary stricture

CD15 is expressed by various cancer types; among these are intrahepatic and perihilar cholangiocarcinoma (CCA). The aim of this study was to elucidate CD15 expression in distal CCA as well as in dysplastic biliary tissue and to determine its prognostic significance.

Education in thyroid surgery: a matched-pair analysis comparing residents and board-certified surgeons

PurposeResident participation in operative procedures is mandatory in educational residency programs but remains controversial, especially in the context of patient safety. This study compared the surgical quality and outcomes of thyroidectomies performed by surgical residents (RESs) and board-certified surgeons (BCSs).MethodsThis retrospective matched-pair study included patients undergoing thyroidectomies for multinodular goiter, Grave’s disease and early-stage thyroid cancer that were performed by a RES with BCS supervision between 2006 and 2014. The intraoperative and postoperative course, complication rates and handling of the recurrent laryngeal nerve (RLN) and parathyroid glands were analyzed.ResultsIn total, 112 thyroidectomies that were performed by a RES fulfilled the inclusion criteria and were matched 1:1 with BCS patients. We included 88 hemithyroidectomies, 80 subtotal thyroidectomies and 56 total thyroidectomies. No significant differences in the handling of the RLN or parathyroid glands, the rates of postoperative RLN palsies or the rates of hypocalcaemia were found. No intraoperative complications led to the replacement of the RES as the surgeon-in-charge. Three RES and two BCS patients experienced postoperative haemorrhages (p = 0.205), and three surgical site infections (p = 1.000) occurred in each group. The mean operative time and the length of stay did not differ significantly between the two groups.ConclusionsMajor aspects of patient safety in thyroid surgery are not affected by resident participation. Thyroidectomies performed by RES are not significantly longer and reveal no differences in length of stay or complication rates. The economic burden of resident involvement is modest.

Rare cause of acute liver failure

ZusammenfassungEine sehr seltene Ursache des akuten Leberversagens ist der adulte Morbus Still, eine systemische rheumatische Erkrankung. Wir berichten von einer 24-jährigen Frau mit unklarem akutem Leberversagen. Aufgrund des fulminanten Verlaufs wurde eine Lebertransplantation erforderlich. Die Diagnose des Morbus Still konnte unter Berücksichtigung der Yamaguchi-Kriterien mit Arthralgien, Fieber, Halsschmerzen, Hauterscheinungen und Hepatosplenomegalie gestellt werden. Die frühzeitige Diagnose und Therapie eines Morbus Still kann die Entwicklung eines akuten Leberversagens mit hoher Letalität verhindern.AbstractA rare cause of acute liver failure is adult onset Still’s disease (AOSD), a systemic inflammatory disorder. We present the case of a 24-year-old woman who presented with acute liver failure necessitating high urgency liver transplantation. The diagnosis of AOSD was established in accordance with the Yamaguchi classification criteria, including arthralgia, fever, sore throat, rash and hepatosplenomegaly. The early detection and therapy of AOSD can possibly avoid the development of liver failure with a poor prognosis.A rare cause of acute liver failure is adult onset Stills disease (AOSD), a systemic inflammatory disorder. We present the case of a 24-year-old woman who presented with acute liver failure necessitating high urgency liver transplantation. The diagnosis of AOSD was established in accordance with the Yamaguchi classification criteria, including arthralgia, fever, sore throat, rash and hepatosplenomegaly. The early detection and therapy of AOSD can possibly avoid the development of liver failure with a poor prognosis.

Seltene Ursache eines akuten Leberversagens@@@Rare cause of acute liver failure

ZusammenfassungEine sehr seltene Ursache des akuten Leberversagens ist der adulte Morbus Still, eine systemische rheumatische Erkrankung. Wir berichten von einer 24-jährigen Frau mit unklarem akutem Leberversagen. Aufgrund des fulminanten Verlaufs wurde eine Lebertransplantation erforderlich. Die Diagnose des Morbus Still konnte unter Berücksichtigung der Yamaguchi-Kriterien mit Arthralgien, Fieber, Halsschmerzen, Hauterscheinungen und Hepatosplenomegalie gestellt werden. Die frühzeitige Diagnose und Therapie eines Morbus Still kann die Entwicklung eines akuten Leberversagens mit hoher Letalität verhindern.AbstractA rare cause of acute liver failure is adult onset Still’s disease (AOSD), a systemic inflammatory disorder. We present the case of a 24-year-old woman who presented with acute liver failure necessitating high urgency liver transplantation. The diagnosis of AOSD was established in accordance with the Yamaguchi classification criteria, including arthralgia, fever, sore throat, rash and hepatosplenomegaly. The early detection and therapy of AOSD can possibly avoid the development of liver failure with a poor prognosis.A rare cause of acute liver failure is adult onset Stills disease (AOSD), a systemic inflammatory disorder. We present the case of a 24-year-old woman who presented with acute liver failure necessitating high urgency liver transplantation. The diagnosis of AOSD was established in accordance with the Yamaguchi classification criteria, including arthralgia, fever, sore throat, rash and hepatosplenomegaly. The early detection and therapy of AOSD can possibly avoid the development of liver failure with a poor prognosis.

Seltene Ursache eines akuten Leberversagens

ZusammenfassungEine sehr seltene Ursache des akuten Leberversagens ist der adulte Morbus Still, eine systemische rheumatische Erkrankung. Wir berichten von einer 24-jährigen Frau mit unklarem akutem Leberversagen. Aufgrund des fulminanten Verlaufs wurde eine Lebertransplantation erforderlich. Die Diagnose des Morbus Still konnte unter Berücksichtigung der Yamaguchi-Kriterien mit Arthralgien, Fieber, Halsschmerzen, Hauterscheinungen und Hepatosplenomegalie gestellt werden. Die frühzeitige Diagnose und Therapie eines Morbus Still kann die Entwicklung eines akuten Leberversagens mit hoher Letalität verhindern.AbstractA rare cause of acute liver failure is adult onset Still’s disease (AOSD), a systemic inflammatory disorder. We present the case of a 24-year-old woman who presented with acute liver failure necessitating high urgency liver transplantation. The diagnosis of AOSD was established in accordance with the Yamaguchi classification criteria, including arthralgia, fever, sore throat, rash and hepatosplenomegaly. The early detection and therapy of AOSD can possibly avoid the development of liver failure with a poor prognosis.A rare cause of acute liver failure is adult onset Stills disease (AOSD), a systemic inflammatory disorder. We present the case of a 24-year-old woman who presented with acute liver failure necessitating high urgency liver transplantation. The diagnosis of AOSD was established in accordance with the Yamaguchi classification criteria, including arthralgia, fever, sore throat, rash and hepatosplenomegaly. The early detection and therapy of AOSD can possibly avoid the development of liver failure with a poor prognosis.