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ESTUDIOS


21 julio 2017

WORLD JOURNAL OF GASTROENTEROLOGY. Endoscopic ultrasound-guided radiofrequency ablation in gastroenterology: New horizons in search

Satyarth Chaudhary, Si-Yu Sun

Radiofrequency ablation (RFA) has been widely used for the treatment of various solid organ malignancies. Over the last decade, endosonographers have gradually shifted the application of RFA from porcine models to humans to treat a spectrum of diseases. RFA is performed in patients with pancreatic carcinoma who are not candidates for surgery. In this paper, we will discuss various indications for RFA, its procedural details and complications. At present, endoscopic ultrasound-guided RFA is gradually incorporated into the management of various diseases and opens a new avenue for disease treatment.

28 agosto 2017

WORLD JOURNAL OF GASTROENTEROLOGY. Nano albumin bound-paclitaxel in pancreatic cancer: Current evidences and future directions

Guido Giordano, Massimo Pancione, Nunzio Olivieri, Pietro Parcesepe, Marianna Velocci, Tania Di Raimo, Luigi Coppola, Giuseppe Toffoli, Mario Rosario D’Andrea

Pancreatic cancer (PDAC) is an aggressive and chemoresistant disease, representing the fourth cause of cancer related deaths in western countries. Majority of patients have unresectable, locally advanced or metastatic disease at time of diagnosis and the 5-year survival rate in these conditions is extremely low. For more than a decade gemcitabine has been the cornerstone of metastatic PDAC treatment, although survival benefit was very poor. PDAC cells are surrounded by an intense desmoplastic reaction that may create a barrier to the drugs penetration within the tumor. Recently PDAC stroma has been addressed as a potential therapeutic target. Nano albumin bound (Nab)-paclitaxel is an innovative molecule depleting tumor stroma, through interaction between albumin and secreted protein acidic and rich in cysteine. Addition of nab-paclitaxel to gemcitabine has showed activity and efficacy in metastatic PDAC first-line treatment improving survival and overall response rate vs gemcitabine alone in the MPACT phase III study. This combination represents one of the standards of care in advanced PDAC therapy and is suitable to a broader spectrum of patients compared to other schedules. Nab-paclitaxel is under investigation as a backbone of chemotherapy in novel combinations with target agents or immunotherapy in locally advanced or metastatic PDAC. In this article, we provide an updated and critical overview about the role of nab-paclitaxel in PDAC treatment based on the latest advances in preclinical and clinical research. Furthermore, we focus on the use of nab-paclitaxel within the context of metastatic PDAC treatment landscape and we discuss about future implications in the light of current clinical ongoing trials.

28 mayo 2017

WORLD JOURNAL OF GASTROENTEROLOGY. Radiological response and inflammation scores predict tumour recurrence in patients treated with transarterial chemoembolization before liver transplantation

Daniele Nicolini, Andrea Agostini, Roberto Montalti, Federico Mocchegiani, Cinzia Mincarelli, Alessandra Mandolesi, Nicola L Robertson, Roberto Candelari, Andrea Giovagnoni, Marco Vivarelli

AIM: To investigate the prognostic value of the radiological response after transarterial chemoembolization (TACE) and inflammatory markers in patients affected by hepatocellular carcinoma (HCC) awaiting liver transplantation (LT).

28 julio 2017

WORLD JOURNAL OF RADIOLOGY. Interventional radiology treatment for pulmonary embolism

Miguel A De Gregorio, Jose A Guirola, Celia Lahuerta, Carolina Serrano, Ana L Figueredo, William T Kuo

Venous thromboembolism (VTE) is an illness that has a potentially life-threatening condition that affects a large percentage of the global population. VTE with pulmonary embolism (PE) is the third leading cause of death after myocardial infarction and stroke. In the first three months after an acute PE, there is an estimated 15% mortality among submassive PE, and 68% mortality in massive PE. Current guidelines suggest fibrinolytic therapy regarding the clinical severity, however some studies suggest a more aggressive treatment approach. This review will summarize the available endovascular treatments and the different techniques with its indications and outcomes.

28 julio 2017

WORLD JOURNAL OF RADIOLOGY. Incidental extravascular findings in computed tomographic angiography for planning or monitoring endovascular aortic aneurysm repair: Smoker patients, increased lung cancer prevalence?

Maria Antonietta Mazzei, Susanna Guerrini, Francesco Gentili, Giuseppe Galzerano, Francesco Setacci, Domenico Benevento, Francesco Giuseppe Mazzei, Luca Volterrani, Carlo Setacci

AIM: To validate the feasibility of high resolution computed tomography (HRCT) of the lung prior to computed tomography angiography (CTA) in assessing incidental thoracic findings during endovascular aortic aneurysm repair (EVAR) planning or follow-up.

28 mayo 2017

WORLD JOURNAL OF RADIOLOGY. Transarterial chemoembolization using 40 µm drug eluting beads for hepatocellular carcinoma

Giorgio Greco, Tommaso Cascella, Antonio Facciorusso, Roberto Nani, Rodolfo Lanocita, Carlo Morosi, Marta Vaiani, Giuseppina Calareso, Francesca G Greco, Antonio Ragnanese, Marco A Bongini, Alfonso V Marchianò, Vincenzo Mazzaferro, Carlo Spreafico

AIM: To assess the safety and efficacy of transarterial chemoembolization (TACE) of hepatocellular carcinoma (HCC) using a new generation of 40 µm drug eluting beads in patients not eligible for curative treatment.

28 julio 2017

WORLD JOURNAL OF HEPATOLOGY. Chemotherapy for hepatocellular carcinoma: The present and the future

Marco Le Grazie, Maria Rosa Biagini, Mirko Tarocchi, Simone Polvani, Andrea Galli

Hepatocellular carcinoma (HCC) is the most common primary tumor of the liver. Its relationship to chronic liver diseases, in particular cirrhosis, develops on a background of viral hepatitis, excessive alcohol intake or metabolic steatohepatitis, leads to a high incidence and prevalence of this neoplasia worldwide. Despite the spread of HCC, its treatment it’s still a hard challenge, due to high rate of late diagnosis and to lack of therapeutic options for advanced disease. In fact radical surgery and liver transplantation, the most radical therapeutic approaches, are indicated only in case of early diagnosis. Even local therapies, such as transarterial chemoembolization, find limited indications, leading to an important problem regarding treatment of advanced disease. In this situation, until terminal HCC occurs, systemic therapy is the only possible approach, with sorafenib as the only standard treatment available. Anyway, the efficacy of this drug is limited and many efforts are necessary to understand who could benefit more with this treatment. Therefore, other molecules for a targeted therapy were evaluated, but only regorafenib showed promising results. Beside molecular target therapy, also cytotoxic drugs, in particular oxaliplatin- and gemcitabine-based regimens, and immune-checkpoint inhibitors were tested with interesting results. The future of the treatment of this neoplasia is linked to our ability to understand its mechanisms of resistance and to find novel therapeutic targets, with the objective to purpose individualized approaches to patients affected by advanced HCC.

08 julio 2017

WORLD JOURNAL OF HEPATOLOGY. Imaging guided percutaneous interventions in hepatic dome lesions: Tips and tricks

Avinash Kambadakone, Vinit Baliyan, Hamed Kordbacheh, Raul N Uppot, Ashraf Thabet, Debra A Gervais, Ronald S Arellano

Percutaneous hepatic interventions are generally safe given the fact that liver closely abuts the abdominal wall and hence it is easily accessible. However, the superior portion of liver, adjacent to the diaphragm, commonly referred as the “hepatic dome”, presents unique challenges for interventionists. Percutaneous access to the hepatic dome may be restricted by anatomical factors and special considerations may be required to avoid injury to the surrounding organs. The purpose of this review article is to discuss certain specific maneuvers and techniques that can enhance the success and safety of interventions in the hepatic dome.

28 junio 2017

WORLD JOURNAL OF HEPATOLOGY. Systemic treatment of hepatocellular carcinoma: Past, present and future

Esther Una Cidon

Hepatocellular carcinoma (HCC) is a common neoplasia which represents the second leading cause of cancer related death. Most cases occur in developing countries, but its incidence is rising in Western countries due to hepatitis C. Although hepatitis therapies have evolved and the HCC screening has increased in several areas, 40% present with advanced disease which is only amenable for palliative systemic treatment. HCC continues posing a challenge, in part due to the inherent chemoresistance of this neoplasia, the pharmacologic challenges due to an ill liver, difficulty in assessing radiological responses accurately, etc. Traditional chemotherapy have shown some responses without clear survival benefit, however, sorafenib demonstrated advantages in survival in advanced HCC when liver function is kept and recently immunotherapy seems to be a promising approach for some patients. This article will briefly expose the most relevant systemic treatment modalities to offer a general view from the past to the future.

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