Arianeb Mehrabi's research while affiliated with evaplan at the University Hospital Heidelberg and other places
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Publications (672)
Background
The outcomes of endoscopic ultrasonography-guided drainage (EUSD) in treatment of pancreas fluid collection (PFC) after pancreas surgeries have not been evaluated systematically. The current systematic review and meta-analysis aim to evaluate the outcomes of EUSD in patients with PFC after pancreas surgery and compare it with percutaneou...
Objective:
To investigate the effect of low-dose aspirin in primary adult liver transplantation LT on acute cellular rejection ACR as well as arterial patency rates.
Background:
The use of low-dose aspirin after LT is practiced by many transplant centers to minimize the risk of hepatic artery thrombosis HAT, although solid recommendations do not...
Background:
A recent RCT has shown that routine intraoperative drain placement after pancreatoduodenectomy (PD) is not necessary. The aim was to confirm this in real-world conditions.
Methods:
A propensity score-matched (PSM) analysis of patients with and without drainage after PD or distal pancreatectomy (DP) at a high-volume centre was underta...
Background:
There is no consensus on the pancreatic transection during distal pancreatectomy (DP) to reduce postoperative pancreatic fistula (POPF). This meta-analysis aimed to evaluate the effects of a reinforced stapler on the postoperative outcomes of DP.
Methods:
We systematically searched electronic databases and bibliographic reference lis...
Background:
Intrahepatic cholangiocarcinoma (ICC) is a relatively rare malignancy. The aim of this meta-analysis was to evaluate outcomes of repeat liver resection and non-surgical approaches for treatment of recurrent ICC.
Methods:
PubMed, Embase, and Web of Science databases were searched from their inception until March 2021 for studies of pa...
Background and aim:
The relationship between time to surgery and risk of postoperative complications and re-intervention has not been conclusively investigated in pediatric perforated appendicitis (PA). The aim of this study was to determine whether time to appendectomy (TTA) is a risk factor for postoperative complications and re-intervention in...
Hepatitis E virus (HEV) is an increasingly recognised pathogen in industrialised countries, in particular genotype 3. Patients with underlying liver disease are at increased risk for severe course of the infection. Additionally, patients receiving immunosuppressive therapy can develop chronic HEV infection, which may cause further liver damage and...
Multiple factors influence graft rejection after kidney transplantation. Pre-operative factors affecting graft function and survival include donor and recipient characteristics such as age, gender, race, and immunologic compatibility. In addition, several peri- and post-operative parameters affect graft function and rejection, such as cold and warm...
Objective
Kidney autotransplantation (ATx) is a treatment option for distal renal artery aneurysm (RAA). This systematic review evaluated the indications, treatment strategy, and outcome of kidney ATx to verify the value of this procedure in treating RAA.
Data Sources
PubMed, Embase, and Web of Science.
Review Methods
All study types were include...
Background
Obesity is a major health burden worldwide and is associated with nonalcoholic fatty liver disease, which can lead to cirrhosis. Bariatric surgery is increasingly being used to treat obesity and the number of obese patients with cirrhosis undergoing bariatric surgery is also rising. However, the safety and feasibility of bariatric surger...
Liver cancers, which are mostly hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCA), are very aggressive tumors with poor prognosis. Therapeutic options with curative intent are largely limited to surgery and available systemic therapies show limited benefit. Signal transducer and activator of transcription 1 (STAT1) and 3 (STAT3) are key t...
The aim of this study was to evaluate whether the portocaval shunt (PCS) corrects these unwanted changes in transhepatic flow after extended hepatectomy (EH). Forty female Landrace pigs were divided into two main groups: (A) EH (75%) and (B) no EH. Group A was divided into 3 subgroups: (A1) EH without PCS; (A2) EH with side-to-side PCS; and (A3) EH...
Objective:
To depict and analyze learning curves for open, laparoscopic, and robotic pancreatoduodenectomy (PD) and distal pancreatectomy (DP).
Background:
Formal training is recommended for safe introduction of pancreatic surgery but definitions of learning curves vary and have not been standardized.
Methods:
A systematic search on PubMed, We...
Purpose
We assessed and compared clinical effects and safety endpoints of three methods of transarterial chemoembolization (TACE), conventional (cTACE), with drug-eluting beads (DEB-TACE), and with degradable starch microspheres (DSM-TACE), used in patients with hepatocellular carcinoma (HCC) in the bridging to liver transplant (LT) and the palliat...
Objective:
To assesses the prevalence and severity of CAS in patients undergoing PD/TP as well as its association with major postoperative complications after pancreatoduodenectomy.
Summary of background data:
Celiac axis stenosis (CAS) may increase the risk of ischemic complications after pancreatoduodenectomy. However, the prevalence of CAS an...
Background
Hepatocellular carcinoma (HCC) is the sixth most common form of cancer worldwide. Although surgical treatments have an acceptable cure rate, tumor recurrence is still a challenging issue. In this meta-analysis, we investigated whether statins prevent HCC recurrence following liver surgery.
Methods
PubMed, Web of Science, EMBASE and Coch...
Pancreatic surgery is complicated by untreated fluid leakage, but no tenable techniques exist to detect and close leakage sites during surgery. A novel hydrogel called SmartPAN has been developed to meet this need and is here assessed for safety before trials on human patients. Firstly, resazurin assays were used to test the cytotoxic effects of Sm...
Background:
The study aimed to develop a nomogram to predict overall survival (OS) for patients with FLC using a national database.
Methods:
The Surveillance, Epidemiology, and End Results database of the National Cancer Institute was reviewed to identify FLC cases with histological confirmation between 2004 and 2014. Cox proportional hazards mo...
Background:
Patients with hepatocellular carcinoma (HCC) are selected for transplantation if they have a low tumour burden and low risk of recurrence. The morphometric Milan criteria have been the cornerstone for patient selection, but dynamic morphological and biological tumour characteristics surfaced as an encouraging tool to refine the selecti...
Background
Virtual reality (VR) with head-mounted displays (HMD) may improve medical training and patient care by improving display and integration of different types of information. The aim of this study was to evaluate among different healthcare professions the potential of an interactive and immersive VR environment for liver surgery that integr...
Due to the current organ shortage, living donor kidney transplantation is increasingly performed across HLA (human leukocyte antigen) or ABO antibody barriers. There is still uncertainty about the risk of antibody-mediated rejection (AMR) episodes, which may limit long-term graft survival. From March 2007 to December 2016, 58 sensitized living dono...
Cholangiocarcinoma (CCA) is a heterogeneous malignancy with a dismal prognosis. Therapeutic options are largely limited to surgery and conventional chemotherapy offers limited benefit. As immunotherapy has proven highly effective in various cancer types, we have undertaken a quantitative immunohistopathological assessment of immune cells expressing...
Transforming growth factor β (TGF-β) signaling plays a fundamental role in metazoan development and tissue homeostasis. However, the molecular mechanisms concerning the ubiquitin-related dynamic regulation of TGF-β signaling are not thoroughly understood. Using a combination of proteomics and an siRNA screen, we identify pVHL as an E3 ligase for SM...
Introduction: Hepatocellular carcinoma (HCC) is by far the leading malignant indication for liver transplantation (LT). Few other malignancies, including cholangiocellular carcinoma (CCC), metastases from neuroendocrine tumors (NET), and sarcomas of the liver (LSAR), also are commonly accepted indications for LT. However, there is limited informati...
Lymphocele is a common complication following kidney transplantation (KTx). We aimed to evaluate the preventive effect of peritoneal fenestration during KTx in reducing lymphocele. From January 2001, the data of all KTx were prospectively gathered in our digital data bank. From 2008, preventive peritoneal fenestration was performed as a routine pro...
Background:
Split-liver transplantation offers a solution to the organ shortage problem. However, the outcomes of extended right lobe liver transplantation (ERLT) and whether it is a suitable alternative to full-size liver transplantation (FSLT) remain controversial.
Methods:
We compared the outcomes of ERLT and FSLT in adult recipients of 43,40...
Importance
Comparability of morbidity and mortality rates after total pancreatectomy (TP) reported by different surgical centers is limited. Procedure-specific differences, such as the extent of resection, including additional vascular or multivisceral resections, are rarely acknowledged when postoperative outcomes are reported.
Objectives
To eval...
Introduction
HLA matching and avoidance of unacceptable mismatches are important aspects in the selection of donors for solid organ transplantation. The impact of HLA-DPB1 incompatibility on the outcomes of kidney transplantation is not fully understood. We investigated a potential effect of mismatching for HLA-DPB1 at allele, eplet or Terasaki epi...
Importance
While oncological outcomes of early salvage total mesorectal excision (sTME) after local excision (LE) have been well studied, the impact of LE before TME on postoperative outcomes remains unclear. We aimed to compare early sTME with a primary TME for rectal cancer.
Methods
Preferred Reporting Items for Systematic Review and Meta-analys...
Background
Little is known about the long-term outcomes of patients with end-stage organ failure (ESOF) undergoing obesity surgery.
Objective
To investigate the perioperative and mid-term outcomes of patients with ESOF undergoing obesity surgery.
Setting
University hospital, Germany
Methods
1,094 patients undergoing obesity surgery from 2006-201...
Background
Resection of the portal venous confluence is frequently necessary for radical resection during pancreatoduodenectomy for cancer. However, ligation of the splenic vein can cause serious postoperative complications such as gastric/splenic venous congestion and left-sided portal hypertension. A splenorenal shunt (SRS) can maintain gastric a...
Objectives
: Renal artery aneurysm (RAA) is a rare disease with various treatment options in indicated patients. In the current survey, the ten-year experience in treatment of RAAs using different endovascular and surgical treatments depending on RAA characteristics is discussed.
Methods
: All patients undergone RAA treatment via endovascular or s...
Lymphatic complications after kidney transplantation (KTx) are associated with morbidities such as impaired wound healing, thrombosis, and organ failure. Recently, a consensus regarding the definition and severity grading of lymphoceles has been suggested. The aim of the present study was to validate this classification method. All adult patients w...
Background
Activation of the oncogene yes-associated protein (YAP) is frequently detected in intrahepatic cholangiocarcinoma (iCCA); however, the expression pattern and the functional impact of its paralogue WW domain-containing transcription regulator 1 (WWTR1; synonym: TAZ) are not well described in different CCA subtypes.
Methods
Immunohistoche...
Knowledge of living donor liver transplantation (LDLT) for autoimmune liver diseases (AILDs) is scarce. This study analyzed survival in LDLT recipients registered in the European Liver Transplant Registry with autoimmune hepatitis, primary biliary cholangitis, primary sclerosing cholangitis (PSC) and the non-autoimmune disorder alcohol-related cirr...
Introduction
Total pancreatoduodenectomy (TP) is the standard surgical approach for treating extended pancreas tumours. If TP is performed with splenectomy, the left gastric vein (LGV) sometimes needs to be sacrificed for oncological or technical reasons, which can result in gastric venous congestion (GVC). GVC can lead to gastric venous infarction...
Background
Hepatocellular carcinoma (HCC) is the sixth most common form of cancer worldwide. Although surgical treatments have an acceptable cure rate, tumor recurrence is still a challenging issue. In this meta-analysis, we investigated whether statins prevent HCC recurrence following liver surgery.
Methods
PubMed, Web of Science, EMBASE and Coch...
Objective:
To evaluate peak serum alanine aminotransferase (ALT) and postoperative clinical outcomes after hypothermic oxygenated machine perfusion (HOPE) versus static cold storage (SCS) in extended criteria donation (ECD) liver transplantation (LT) from donation after brain death (DBD).
Background:
HOPE might improve outcomes in LT, particular...
Purpose
This retrospective analysis focuses on treatment stage migration in patients with hepatocellular carcinoma (HCC) to identify successful treatment sequences in a large cohort of real-world patients.
Methods
1369 HCC patients referred from January 1993 to January 2020 to the tertiary center of the Heidelberg University Hospital, Germany were...
Cells of the immune system were proposed for use as Trojan horse for tumour-specific drug delivery. The efficacy of such cell-based drug delivery depends on the site-specific cell homing. This present study was aimed to investigate the potential of leucocytes for intratumoural site-specific enrichment using a locoregional application route in exper...
Biliary tract cancer ranks among the most lethal human malignancies, representing an unmet clinical need. Its abysmal prognosis is tied to an increasing incidence and a fundamental lack of mechanistic knowledge regarding the molecular basis of the disease. Here, we show that the Pdx1-positive extrahepatic biliary epithelium is highly susceptible to...
Purpose: To establish comparable reporting of surgical results in pediatric liver surgery, the recently introduced composite outcome measures Textbook Outcome (TO) and Comprehensive Complication Index (CCI) are applied and validated in a pediatric surgery context for the first time. In a representative cohort of pediatric patients undergoing liver...
Background
Surgical resection is the mainstay of potential cure for patients with pancreatic cancer, however, local recurrence is frequent. Previously, we have described an extended resection technique for pancreatoduodenectomy aiming at a radical resection of the nerve and lymphatic tissue between celiac artery, superior mesenteric artery and mese...
Background
Caroli Disease (CD) and Caroli Syndrome (CS) are rare disorders presenting with dilation of the intrahepatic bile ducts. CD/CS are associated with cholangiocarcinoma (CCA). However, the true incidence of CCA is still unclear, although it may serve as an indication for surgery. In this paper, we analyzed (I) the incidence of CCA in German...
We report a case of resistance development towards cefiderocol in a patient with intra-abdominal and bloodstream infections caued by carbapenemase-producing Enterobacter cloacae within 21 days of cefiderocol therapy. Whole genome sequencing revealed heterogeneous mutations in the cirA gene, encoding a catecholate siderophore receptor, conferring ph...
High‐risk combinations of recipient and graft characteristics are poorly defined for liver retransplantation (reLT) in the current era. We aimed to develop a risk model for survival after reLT using data from the European Liver Transplantation Registry, followed by internal and external validation. From 2006–2016, 85,067 LTs were recorded, includin...
BACKGROUND Living kidney donors may face health risks after donation. Age, sex, body mass index, comorbidities, and relationship to the recipient have an impact on lifetime living kidney donor risk. In view of a changing landscape in renal transplantation with increasing organ shortages, the selection criteria for potential donors may have changed...
Importance
The natural history of intraductal papillary mucinous neoplasms (IPMNs) remains uncertain. The inconsistencies among published guidelines preclude accurate decision-making. The outcomes and potential risks of a conservative watch-and-wait approach vs a surgical approach must be compared.
Objective
To provide an overview of the surgical...
Background
In patients with hepatic cystic echinococcosis (CE), treatment effectiveness, outcomes, complications, and recurrence rate are controversial. Endocystectomy is a conservative surgical approach that adequately removes cyst contents without loss of parenchyma. This conservative procedure has been modified in several ways to prevent complic...
Purpose:
We assessed and compared clinical effects and safety endpoints of three methods of transarterial chemoembolization (TACE), conventional (cTACE), with drug-eluting beads (DEB-TACE), and with degradable starch microspheres (DSM-TACE), used in patients with hepatocellular carcinoma (HCC) in the bridging to liver transplant (LT) and the pallia...
Postoperative (or postpancreatectomy) acute pancreatitis (PPAP) in the pancreatic remnant has recently been recognized as a distinct complication entity that may occur after both partial pancreatoduodenectomy (PD) and distal pancreatectomy (DP). However, is remains unclear what constitutes PPAP. Moreover, the pathophysiologic events leading to PPAP...
Background
Infrahepatic inferior vena cava (IVC) clamping reduces central venous pressure. However, controversies remain regarding its impact on postoperative complications, particularly, the incidence of postoperative pulmonary embolism (PE). The aim of the study was to determine the impact of IVC clamping on the incidence of PE in patients underg...
Introduction:
To explore the feasibility, safety, and efficiency of ethiodized oil tumor marking combined with irreversible electroporation (IRE) for small hepatocellular carcinomas (HCCs) that were invisible on unenhanced computed tomography (CT).
Methods:
A retrospective analysis of the institutional database was performed from January 2018 to...
Up to 50% of patients with colorectal cancer (CRC) have either synchronous or metachronous hepatic metastases in the course of their disease. Patients with metastatic CRC (mCRC) whose tumors express wild-type KRAS benefit from treatment with monoclonal antibodies (such as cetuximab or panitumumab) that target the epidermal growth factor receptor (E...
Inhibition of the programmed cell death protein-1/ligand-1 (PD-1/PD-L1) axis has opened a new era in the treatment of solid cancers. However, there is no data on the expression and relevance of PD-L1 in Western gallbladder cancer (GBC). We assessed PD-L1 immunohistochemically in 131 GBC patients as Tumor Proportion Score (TPS), Immune Cell Score (I...
Background:
Portal vein arterialization (PVA) is a possible option when hepatic artery reconstruction is impossible during liver resection. The aim of this study was to review the literature on the clinical application of PVA in hepatopancreatobiliary (HPB) surgery.
Methods:
We performed a systematic review according to the Preferred Reporting I...
Objective:
The aim of this study was to determine the role of gastric venous congestion (GVC) in mortality after total pancreatectomy (TP).
Background:
Data from a nationwide administrative database revealed that TP is associated with a 23% mortality rate in Germany.
Methods:
A total of 585 consecutive patients who had undergone TP (n = 514) o...
Background
Anti-HBc only positive liver grafts may be suitable for HBV-naive recipients insofar as an appropriate infection prophylaxis is performed. Therefore, we investigated the effect of prophylactic regimens on HBV infection prevention and long-term outcome of anti-HBc-positive graft recipients.
Patients and methods
This retrospective monocen...