Arianeb Mehrabi's research while affiliated with Ethianum Klinik Heidelberg and other places

Publications (739)

Article
Full-text available
Background Endocystectomy is a conservative surgical approach to managing cystic echinococcosis. Bile leakage is the main complication of this technique. The aim of this study was to evaluate the factors associated with bile leakage and to assess the outcomes and cost efficiency of strategies used to treat bile leakage. Methodology/Principal findi...
Article
Background Statins, metformin, and aspirin have been reported to reduce the incidence of hepatocellular carcinoma (HCC). However, the effect of their perioperative use on survival outcomes of HCC patients following curative liver resection still remains unclear. Method Three hundred and fifty three patients with a first diagnosis of HCC who underw...
Article
Full-text available
Introduction Bile leakage represents a major cause of morbidity following hepatic resection. Although most patients can be managed non-operatively, this complication requires diagnostics and therapeutic interventions. Preoperative endoscopic injection of botulinum toxin (BTX) into the sphincter of Oddi represents an innovative approach to prevent b...
Article
Full-text available
The use of robots in donor nephrectomy has increased in recent years. However, whether robot-assisted methods have better outcomes than traditional laparoscopic methods and how surgical experience influences these outcomes remains unclear. This meta-analysis compares the outcomes of robot-assisted donor nephrectomy (RADN) with those of laparoscopic...
Article
Background & aims: Diagnosis of adenocarcinoma in the liver is a frequent scenario in routine pathology and has a critical impact on clinical decision-making. However, rendering a correct diagnosis can be challenging and often requires the integration of clinical, radiological, and immunohistochemical information. We present a deep learning model...
Article
Background and aims: Alterations in liver histology influence the liver´s capacity to regenerate, but the relevance of each of the different changes rapid liver growth induction is unknown. This study aimed to analyze the influence of the degree of histological alterations during the first and second stages on the ability of the liver to regenerat...
Article
Full-text available
Background The administration of modified immune cells (MIC) before kidney transplantation led to specific immunosuppression against the allogeneic donor and a significant increase in regulatory B lymphocytes. We wondered how this approach affected the continued clinical course of these patients. Methods Ten patients from a phase I clinical trial...
Article
Objective: The goal of the current study was to investigate the perioperative outcomes of robotic pancreaticoduodenectomy (RPD) and open pancreaticoduodenectomy (OPD) in a high-volume center. Summary background data: Despite RPD's prospective advantages over OPD, current evidence comparing the two has been limited.and has prompted further invest...
Article
Introduction Surgery is the best therapeutic option for improving the quality of life of most patients with benign and malignant lesions of the liver as well as diseases of the gallbladder and bile duct¹. Technological advances in surgical techniques and early diagnosis of hepatobiliary tumours have improved surgical interventions2,3. As the number...
Article
Background: Recently, subclassification of pancreatoduodenectomy in 4 differing types has been reported, because additional major vascular and multivisceral resections have been shown to be associated with an increased risk of postoperative morbidity and mortality. Objective: To classify distal pancreatectomy (DP) based on the extent of resectio...
Article
Full-text available
Background Gallbladder cancer (GBC) is rare but aggressive. The extent of surgical intervention for different GBC stages is non-uniform, ranging from cholecystectomy alone to extended resections including major hepatectomy, resection of adjacent organs and routine extrahepatic bile duct resection (EBDR). Robust evidence here is lacking, however, an...
Article
Full-text available
Background: Gallbladder cancer (GBC) is rare but aggressive. The extent of surgical intervention for different GBC stages is non-uniform, ranging from cholecystectomy alone to extended resections including major hepatectomy, resection of adjacent organs and routine extrahepatic bile duct resection (EBDR). Robust evidence here is lacking, however,...
Article
Background: The present study evaluates the impact of the pandemic on outcomes after surgical treatment for primary liver cancer in a high-volume hepatopancreatobiliary surgery center. Methods: Patients, who underwent liver resection for primary liver resection between January 2019 and February 2020, comprised pre-pandemic control group. The pan...
Article
Objective: To determine perioperative and oncologic outcomes after distal pancreatectomy with en-bloc resection of the celiac axis (DP-CAR). Background: DP-CAR can be used in a selective group of patients to resect locally advanced pancreatic cancer involving the celiac axis or common hepatic artery without arterial reconstruction by preserving...
Article
Background: Associating liver partition and portal vein ligation for staged hepatectomy for perihilar cholangiocarcinoma has been considered to be contraindicated due to the initial poor results. Given the recent reports of improved outcomes, we aimed to collect the recent experiences of different centers performing associating liver partition and...
Article
Full-text available
Limited data are available on postoperative outcomes in patients undergoing robotic total pancreatectomy (RTP). This systematic review and meta-analysis aimed to compare the postoperative outcomes of RTP and open total pancreatectomy (OTP). We performed a systematic review with meta-analysis according to the PRISMA 2020 and AMSTAR 2 guidelines. We...
Article
Background: In conventional orthotopic liver transplantation (OLT), the recipient's retrohepatic inferior vena cava (IVC) is completely clamped and replaced with the donor IVC. The piggyback technique has been used to preserve venous return, either via an end-to-side or standard piggyback (SPB), or via a side-to-side or modified piggyback (MPB) an...
Article
Full-text available
Background: Liver transplantation is the only promising treatment for end-stage liver disease and patients with hepatocellular carcinoma. However, too many organs are rejected for transplantation. Methods: We analyzed the factors involved in organ allocation in our transplant center and reviewed all livers that were declined for transplantation....
Article
Background: The unphysiological composition of peritoneal dialysis (PD) fluids induces progressive peritoneal fibrosis, hypervascularization and vasculopathy. Information on these alterations after kidney transplantation (KTx) is scant. Methods: Parietal peritoneal tissues were obtained from 81 pediatric patients with chronic kidney disease stag...
Article
Background: Anastomotic suturing is the Achilles heel of pancreatic surgery. Especially in laparoscopic and robotically assisted surgery, the pancreatic anastomosis should first be trained outside the operating room. Realistic training models are therefore needed. Methods: Models of the pancreas, small bowel, stomach, bile duct, and a realistic...
Article
Background: Evidence on safety and efficacy of different liver transection techniques in pediatric major hepatectomy is completely lacking, as no study has been conducted so far. The use of stapler hepatectomy has never before been reported in children. Methods: Three liver transection techniques were compared: (1) ultrasonic dissector (CUSA), (...
Article
Full-text available
With increasing trends for the adoption of robotic surgery, many centers are considering changing their practices from open or laparoscopic to robot-assisted surgery for rectal cancer. We compared the outcomes of robot-assisted rectal resection with those of open and laparoscopic surgery. We searched Medline, Web of Science, and CENTRAL databases u...
Article
Background: Bariatric surgery has been suggested as a treatment for obesity and end-stage renal disease (ESRD). Although the number of bariatric surgeries in patients with ESRD is increasing, its safety and effectiveness in these patients are still controversial and the surgical method of choice in these patients is under debate. Objectives: To...
Article
Background: The goal of medical imaging is not only to identify the entity "hepatocellular adenoma," but to detect typical magnetic resonance (MR) patterns of the subtypes so that lesions with a higher malignant transformation rate could be differentiated from those that should just be controlled. Purpose: To evaluate the differentiation between...
Article
Full-text available
Background Use of intraoperative prothrombin complex concentrates (PCC) and fibrinogen concentrate administration has been linked to thrombotic events. However, it is unknown if its use is associated with thrombotic events after liver transplant. Methods and analysis We conducted a post hoc analysis of a prospectively conducted registry database s...
Article
Full-text available
Introduction Donor-derived modified immune cells (MIC) induced long-term specific immunosuppression against the allogeneic donor in preclinical models of transplantation. In a phase I clinical trial (TOL-1 Study), MIC treatment resulted in a cellular phenotype that was directly and indirectly suppressive to the recipient’s immune system allowing fo...
Article
Full-text available
Unlabelled: To compare the outcomes of modified-Associating Liver Partition and Portal vein Ligation for Staged hepatectomy (ALPPS) techniques with those of conventional-ALPPS. Background: ALPPS is an established technique for treating advanced liver tumors. Methods: PubMed, Web of Science, and Cochrane databases were searched. The outcomes we...
Article
Full-text available
Purpose: Although surgery is associated with an acceptable cure rate, tumor recurrence is still a challenging issue in hepatocellular carcinoma (HCC) patients. Red blood cell distribution width (RDW) is considered an inflammatory marker for predicting overall mortality in a wide spectrum of malignancies. In the current study, the prognostic role o...
Article
Full-text available
Importance Fundoplication (FP) is a well-established surgical treatment for gastroesophageal reflux disease (GERD) refractory to medical therapy in children and young adults. During FP, previous abdominal surgery (PAS) can impair the patient’s outcome by causing technical difficulties and increasing intra- and postoperative complication rates. Obj...
Article
Full-text available
Aim: We systematically review current clinical applications of artificial intelligence (AI) that use machine learning (ML) methods for decision support in surgical oncology with an emphasis on clinical translation. Methods: MEDLINE, Web of Science, and CENTRAL were searched on 19 January 2021 for a combination of AI and ML-related terms, decision s...
Article
Full-text available
Background We recently demonstrated that donor-derived modified immune cells (MICs)—PBMCs that acquire immunosuppressive properties after a brief treatment— induced specific immunosuppression against the allogeneic donor when administered prior to kidney transplantation. We found an up to 68-fold increase in CD19 ⁺ CD24 hi CD38 hi transitional B ly...
Article
Full-text available
Several factors have been reported to affect graft survival following kidney transplantation. CD52 molecules may increase T cell proliferation and activation, which may contribute to acute graft rejection and graft survival. In the current study, we studied the possible value of preoperative CD52 levels in predicting graft survival following renal...
Article
Full-text available
Background Intraductal papillary neoplasms (IPN) and biliary epithelial neoplasia (BilIN) are well‐defined precursor lesions of biliary tract carcinoma (BTC). The aim of this study was to provide a comprehensive characterisation of the inflammatory microenvironment in BTC precursor lesions. Methods Immunohistochemistry was employed to assess tumou...
Article
Full-text available
Background Advanced cholangiocarcinoma has a poor prognosis. Molecular targeted approaches have been proposed for patients after progression under first-line chemotherapy treatment. Here, molecular profiling of intrahepatic cholangiocarcinoma in combination with a comprehensive umbrella concept was applied in a real-world setting. Methods In total...
Article
Introduction: This systematic review with meta-analysis aimed to compare the robotic complete mesocolon excision (RCME) to laparoscopic colectomy (LC) with (LCME) or without CME (LC non-CME) in postoperative outcomes, harvested lymph nodes and disease-free survival. Methods: We performed a systematic review with meta-analysis according to PRISMA...
Article
Background and Aims Biliary strictures after liver transplantation are associated with significant morbidity and mortality. Although various endoscopic treatment strategies are available, consensus on a particular strategy is lacking. Moreover, the influence of endoscopic therapy on overall survival has not been studied. This retrospective study ai...
Article
Background: Mesohepatectomy is a viable treatment option for patients diagnosed with centrally located liver tumors (CLLTs). There are several reports from Eastern centers, but few data are available on this topic from Western centers. Study design: Data of 128 consecutive patients who underwent mesohepatectomy between September 2000 and Septemb...
Article
Full-text available
Objective: To evaluate the outcomes of pancreatic cancer [pancreatic ductal adenocarcinoma (PDAC)] surgery with concomitant portal vein resection (PVR), focusing on the PVR type according to the International Study Group of Pancreatic Surgery (ISGPS). Background: Surgery offers the only chance for cure in PDAC. PVR is often performed for borderl...
Article
Full-text available
Study purpose: The DRAGON 1 trial aims to assess training, implementation, safety and feasibility of combined portal- and hepatic-vein embolization (PVE/HVE) to accelerate future liver remnant (FLR) hypertrophy in patients with borderline resectable colorectal cancer liver metastases. Methods: The DRAGON 1 trial is a worldwide multicenter prospe...
Article
Full-text available
Objective: The objective of this study was to identify the indications for and report the outcomes of completion pancreatectomy (CPLP) in the postoperative course after pancreatoduodenectomy (PD). Background: CPLP may be considered or even inevitable for damage control after PD. Methods: A prospectively maintained database of all patients unde...
Article
Introduction: Hepaticoenterostomy is an important step of reconstruction during hepatopancreatobiliary (HPB) surgery with a subsequent bile leakage rate of up to 5%. The International Study Group of Liver Surgery (ISGLS) proposed a severity grading system for defining bile leakage after HPB surgery, which has not been validated after pancreatic su...
Article
Full-text available
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...
Article
Full-text available
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...
Article
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...
Article
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...
Article
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...
Article
Full-text available
Background and Aims 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 furth...
Article
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...
Article
Full-text available
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...
Article
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...
Article
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...
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...