Publications by authors named "Boris Radeleff"

Article Synopsis
  • Percutaneous transhepatic biliary drainage is a crucial treatment for biliary obstruction, especially when endoscopic methods fail, as demonstrated in an 82-year-old man with cholangiocarcinoma.
  • After initial success with the drainage procedure, complications arose due to accidental dislodgement of the drain, resulting in biliary peritonitis and worsening health.
  • The extractive procedure to remove the fractured drain highlighted the significance of interventional radiology in addressing complications, and a new technique was developed to ensure better fixation and prevent future dislodgements.
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Choledocholithiasis, characterized by the presence of stones in the common bile duct, poses significant challenges in clinical management, particularly when the stones are massive. While endoscopic methods are often effective in stone removal, complications such as the impaction of foreign bodies like Dormia baskets can occur. These complications may necessitate alternative approaches, including surgical intervention, highlighting the importance of exploring innovative interventional techniques.

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The pancreaticobiliary system is a complex and vulnerable anatomic region. Small changes can lead to severe complications. Pancreaticobiliary disorders leading to severe complications include malignancies, pancreatitis, duodenal ulcer, duodenal diverticula, vascular malformations, and iatrogenic or traumatic injuries.

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The initial treatment of acute and subacute portal vein thrombosis, which is the most common cause of portal vein occlusion, consists of intravenous anticoagulation with heparin, but there is still a huge uncertainty among physicians regarding the role of more invasive therapies. We report a 61-year-old male patient, who presented in our emergency room with a subacute complete thrombosis of the intra- and extrahepatic portal vein, mesenteric vein, with associated venous congestion of 20-30 cm length of the small intestine with a quick and complete remission of the portal vein thrombosis under sole i.v.

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Article Synopsis
  • A study looked at three ways to do a treatment called TACE for patients with liver cancer.
  • They compared how safe and effective each method was, especially when patients were getting ready for a liver transplant or getting other help for their illness.
  • The results showed that one method (cTACE) caused more hospital stays and side effects like nausea, but overall, all methods were pretty safe and more research is needed to learn more about their effects.
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Irreversible electroporation (IRE) is an ablation procedure in which cell death is induced by ultrashort electrical pulses. In this unicentric retrospective study we investigated the influence of needle positioning on ablation success. 15 IREs with residual tumor after ablation, detected in the first follow-up MRI, were included, and compared with 30 successful ablations.

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Article Synopsis
  • The study looked at how the liver's ability to heal after surgery affects how often cancer comes back in patients who had liver cancer surgery.
  • They included 58 out of 186 patients and found that the liver can grow back a lot within 14 months after surgery.
  • Results showed that patients whose livers didn't regenerate much had a higher chance of cancer returning, but the amount of liver growth didn't change how long they lived after the surgery.
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Objective: Percutaneous biliary interventions (PBIs) can be associated with a high patient radiation dose, which can be reduced when national diagnostic reference levels (DRLs) are kept in mind. The aim of this multicentre study was to investigate patient radiation exposure in different percutaneous biliary interventions, in order to recommend national DRLs.

Methods: A questionnaire asking for the dose area product (DAP) and the fluoroscopy time (FT) in different PBIs with ultrasound- or fluoroscopy-guided bile duct punctures was sent to 200 advanced care hospitals.

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Background/aim: Sorafenib leads to improved survival in advanced hepatocellular carcinoma (HCC) patients. Continuation of sorafenib beyond progression has been a possible treatment strategy when further approved therapeutic agents are lacking.

Methods: We performed a retrospective analysis of all HCC patients at our institution with documented disease progression under treatment with sorafenib.

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Objectives: Cholangiocarcinoma is the second most common primary liver tumour with a poor overall prognosis. Percutaneous hepatic perfusion (PHP) is a directed therapy for primary and secondary liver malignancies, and its efficacy and safety have been shown in different entities. The purpose of this study was to prove the safety and efficacy of PHP in patients with unresectable intrahepatic cholangiocarcinoma (iCCA).

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Background: Augmented reality (AR) systems are currently being explored by a broad spectrum of industries, mainly for improving point-of-care access to data and images. Especially in surgery and especially for timely decisions in emergency cases, a fast and comprehensive access to images at the patient bedside is mandatory. Currently, imaging data are accessed at a distance from the patient both in time and space, i.

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Hepatocellular carcinoma (HCC) is the fifth most common cancer worldwide. Only 30-40% of patients diagnosed with HCC are candidates for curative treatment options. The remaining majority of patients undergo local, regional or systemic palliative therapies.

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Purpose: The MIRACLE I pilot study was designed as a preliminary investigation of safety and efficacy of Embozene TANDEM microspheres loaded with doxorubicin for treatment of locally untreatable (i.e., unresectable and not suitable for local thermal ablation) hepatocellular carcinoma (HCC).

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This case describes a technique used to close a long-term 14F transpleural biliary drainage catheter tract to prevent biliopleural fistula and further complications. We deployed a compressed gelatin foam pledget provided in a pre-loaded delivery device (Hep-Plug™) along the intrahepatic tissue tract for sealing it against the pleural cavity. The device used is easy to handle and gives the Interventional Radiologist the possibility to safely manage and prevent complications after percutaneous transhepatic interventions.

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Background: Irreversible electroporation (IRE), a nonthermal injury ablation technique, has been shown to be effective and safe in various organs, such as in the kidney, liver, prostate, or in pancreas. In contrast to radiofrequency or microwave ablation, IRE is also effective in the neighborhood of major vessels. Many human cancers reveal lymphatic spread.

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Purpose: Percutaneous isolated hepatic perfusion (PIHP) with Melphalan has been developed as a treatment for patients with isolated hepatic metastases of uveal melanoma. We discuss patient outcome and safety in a retrospective multi-centre study.

Materials And Methods: Between 2012 and 2016 18 patients with un-resectable isolated hepatic metastases of uveal melanoma received single or repeated PIHP with Melphalan (n = 35) at seven sites.

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 Radiofrequency ablation (RFA) is an established treatment for small renal tumors. The objective of this review is to systematically assess the type, frequency, risk factors and management of treatment failure after image-guided percutaneous RFA of renal tumors.  10 studies (967 patients, 1033 tumors) with a mean/median follow-up of ≥ 30 months were systematically identified and analyzed.

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Purpose: To evaluate the effects of combined use of transarterial chemoembolization and irreversible electroporation (IRE) for focal tissue ablation in an acute porcine liver model.

Materials And Methods: Two established interventional techniques were combined: IRE with zones of irreversible and reversible electroporation and chemoembolization with microspheres, iodized oil, and doxorubicin. IRE was performed before chemoembolization in two pigs (pigs 1 and 2; IRE/chemoembolization group), chemoembolization was performed before IRE in two pigs (pigs 3 and 4; chemoembolization/IRE group), and only IRE was performed in two pigs (pigs 5 and 6).

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Interventional Radiology (IR) is an essential part of modern medicine, delivering minimally invasive patient-focused care, which has been proven to be safe and effective in both elective and emergency settings. The aim of this document is to outline the core requirements and standards for the provision of Interventional Radiological services, including training, certification, manpower, and accreditation. The ultimate challenge will be the adoption of these recommendations by different countries and health economies around the world, in turn ensuring equal access to IR treatments for all patients, the appropriate distribution of resources for IR service provision as well as the continued development of safe and high-quality IR services in Europe and beyond.

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Background: Benign liver tumours represent a challenge in clinical management. There is considerable controversy with respect to the indications for surgery as the evidence for surgical treatment is variable. The aim of this retrospective study was to analyse the indication and outcome after resection of benign, solid liver lesions.

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Purpose: Percutaneous needle insertions are increasingly used for diagnosis and treatment of abdominal lesions. The challenging part of computed tomography (CT)-guided punctures is the transfer of the insertion trajectory planned in the CT image to the patient. Conventionally, this often results in several needle repositionings and control CT scans.

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Background: Liver Transplantation (LT) is treatment of choice for patients with hepatocellular carcinoma (HCC) within MILAN Criteria. Tumour progression and subsequent dropout from waiting list have significant impact on the survival. Transarterial chemoembolization (TACE) controls tumour growth in the treated HCC nodule, however, the risk of tumour development in the untreated liver is increased by simultaneous release of neo-angiogenic factors.

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Objectives: Use of thermal tumor ablation in the pancreatic parenchyma is limited because of the risk of pancreatitis, pancreatic fistula, or hemorrhage. This study aimed to evaluate the feasibility and safety of irreversible electroporation (IRE) in a porcine model.

Methods: Ten pigs were divided into 2 study groups.

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Purpose: To evaluate and compare irinotecan elution kinetics of two drug-eluting embolic agents in a porcine model.

Materials And Methods: Embolization of the left liver lobe was performed in 16 domestic pigs, with groups of two receiving 1 mL of DC Bead M1 (70-150 µm) or Embozene TANDEM (75 µm) loaded with 50 mg irinotecan. Irinotecan plasma levels were measured at 0, 10, 20, 30, 60, 120, 180, and 240 minutes after completed embolization and at the time of euthanasia (24 h, 48 h, 72 h, or 7 d).

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