Michele Montori

Dr. Michele Montori

orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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7 June 2023 in Medicina
Verified
Journal Article
Open access
PDF file
AMAlessio Morandi
Alessio Morandi
MRMatteo Risaliti
Matteo Risaliti
MMMichele Montori
Michele Montori
SBSimone Buccianti
Simone Buccianti
IBIlenia Bartolini
Ilenia Bartolini
LMLuca Moraldi
Luca Moraldi
The assessment of liver function is crucial in predicting the risk of post-hepatectomy liver failure (PHLF) in patients undergoing liver resection, especially in cases of hepatocellular carcinoma (HCC) which is often associated with cirrhosis. There are currently no standardized criteria for predicting the risk of PHLF. Blood tests are often the first- and least invasive expensive method for assessing hepatic function. The Child–Pugh score (CP score) and the Model for End Stage Liver Disease (MELD) score are widely used tools for predicting PHLF, but they have some limitations. The CP score does not consider renal function, and the evaluation of ascites and encephalopathy is subjective. The MELD score can accurately predict outcomes in cirrhotic patients, but its predictive capabilities diminish in non-cirrhotic patients. The albumin–bilirubin score (ALBI) is based on serum bilirubin and albumin levels and allows the most accurate prediction of PHLF for HCC patients. However, this score does not consider liver cirrhosis or portal hypertension. To overcome this limitation, researchers suggest combining the ALBI score with platelet count, a surrogate marker of portal hypertension, into the platelet–albumin–bilirubin (PALBI) grade. Non-invasive markers of fibrosis, such as FIB-4 and APRI, are also available for predicting PHLF but they focus only on cirrhosis related aspects and are potentially incomplete in assessing the global liver function. To improve the predictive power of the PHLF of these models, it has been proposed to combine them into a new score, such as the ALBI-APRI score. In conclusion, blood test scores may be combined to achieve a better predictive value of PHLF. However, even if combined, they may not be sufficient to evaluate liver function and to predict PHLF; thus, the inclusion of dynamic and imaging tests such as liver volumetry and ICG r15 may be helpful to potentially improve the predictive capacity of these models.

6 August 2023 in Medicina
Verified
Journal Article
Open access
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Ludovico AbenavoliLudovico Abenavoli
Ludovico Abenavoli
MMMichele Montori
Michele Montori
Gianluca Svegliati-BaroniGianluca Svegliati-Baroni
Gianluca Svegliati-Baroni
Maria Eva ArgenzianoMaria Eva Argenziano
Maria Eva Argenziano
FGFrancesca Giorgi
Francesca Giorgi
Emidio ScarpelliniEmidio Scarpellini
Emidio Scarpellini
Background and Objectives: Hepatocellular carcinoma (HCC) is the leading cause of liver cancer worldwide and has a high mortality rate. Its incidence has increased due to metabolic-associated liver disease (MAFLD) epidemics. Liver transplantation and surgery remain the most resolute measures. Despite the optimistic use of multi-kinase inhibitors, namely sorafenib, the co-existence of chronic liver disease made the response rate low in these patients. Immune checkpoint inhibitors (ICIs) have become a promising hope for certain advanced solid tumors and, also, for advanced HCC. Unfortunately, a large cohort of patients with HCC fail to respond to immunotherapy. Materials and Methods: We conducted a narrative search on the main medical databases for original articles, reviews, meta-analyses, randomized clinical trials, and case series using the following keywords and acronyms and their associations: hepatocellular carcinoma, immunotherapy, checkpoint inhibitors, gut microbiota, and fecal microbiota transplantation. Results: ICIs are a promising and sufficiently safe treatment option for HCC. In detail, they have significantly improved survival and prognosis in these patients vs. sorafenib. Although there are several highlighted mechanisms of resistance, the gut microbiota signature can be used both as a response biomarker and as an effect enhancer. Practically, probiotic dose-finding and fecal microbiota transplantation are the weapons that can be used to increase ICI’s treatment-response-reducing resistance mechanisms. Conclusion: Immunotherapy has been a significant step-up in HCC treatment, and gut microbiota modulation is an effective liaison to increase its efficacy.

30 March 2024 in Cancers
Verified
Journal Article
Open access
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DBDaniele Balducci
Daniele Balducci
MMMichele Montori
Michele Montori
FMFrancesco Martini
Francesco Martini
MVMarco Valvano
Marco Valvano
FBFederico De Blasio
Federico De Blasio
LMLuca Maroni
Luca Maroni
Endoluminal biliary radiofrequency ablation (RFA) has been proposed as a palliative treatment for patients with malignant biliary obstruction (MBO) in order to improve stent patency and survival. However, the existing data on patients with inoperable extrahepatic cholangiocarcinoma (eCCA) are conflicting. We performed a meta-analysis of randomized trials comparing RFA plus stenting versus stenting alone in patients with inoperable eCCA. We searched for trials published in the PubMed/MEDLINE, Scopus, and Cochrane databases up to November 2023. Data extraction was conducted from published studies, and a quality assessment was carried out in accordance with the guidelines recommended by the Cochrane Collaboration. Hazard ratios (HRs) with 95% CI were estimated from the trials. The primary endpoints of interest were overall survival and stent patency. Out of 275 results, 5 randomized trials and 370 patients were included. While overall survival was not different between the groups (HR 0.62; 95% CI 0.36–1.07; p = 0.09; I2 = 80%;), the subgroup analysis of studies employing plastic stents showed a trend toward better survival in the RFA-treated group (HR 0.42; 95% CI 0.22–0.80; p = 0.009; I2 = 72%). Stent patency was improved in patients receiving RFA (HR 0.64; 95% CI 0.45–0.90; p = 0.01; I2 = 23%). Adverse events were not different between the groups (OR 1.21; 95% CI 0.69–2.12; p = 0.50; I2 = 0%). Despite the promising results, high heterogeneity and potential biases in the included studies suggest the need for further high-quality randomized trials to explore the potential cumulative effects of RFA on CCA treatment outcomes.

15 June 2023 in Medicina
Verified
Journal Article
Open access
PDF file
DBDaniele Balducci
Daniele Balducci
MMMichele Montori
Michele Montori
FBFederico De Blasio
Federico De Blasio
ABAlessandro Di Bucchianico
Alessandro Di Bucchianico
Maria Eva ArgenzianoMaria Eva Argenziano
Maria Eva Argenziano
Emidio ScarpelliniEmidio Scarpellini
Emidio Scarpellini
Liver cancer is very frequent, and hepatocellular carcinoma (HCC) accounts for the majority of liver cancer cases. Its growing incidence has been greatly affected by the increasing prevalence of metabolic-associated fatty liver disease (MAFLD). The latter is a new epidemic in our era. In fact, HCC is often generated from noncirrhotic liver and its treatment benefits from surgical and nonsurgical approaches, potentially bridged by transjugular intrahepatic portosystemic shunt (TIPS) use. TIPS use is an effective treatment for portal hypertension complications, but its application in patients with HCC and clinically significant portal hypertension (CSPH) remains controversial due to concerns about tumor rupture, dissemination, and increased toxicity. The technical feasibility and safety of TIPS use in HCC patients have been evaluated in several studies. Despite concerns about intraprocedural complications, retrospective studies have shown high success rates and low complication rates in TIPS placement for HCC patients. TIPS use in combination with locoregional treatments, such as transarterial chemoembolization (TACE) or transarterial radioembolization (TARE), has been explored as a treatment option for HCC patients with portal hypertension. These studies have shown improved survival rates in patients undergoing TIPS in combination with locoregional treatments. However, the efficacy and toxicity of TACE in combination with TIPS use require careful evaluation, as changes in venous and arterial flow can affect treatment outcomes and complications. The results from studies evaluating the impact of TIPS on systemic therapy and surgical options are also promising. In conclusion, the TIPS is a sufficiently safe, useful item available for physicians treating complications of portal hypertension. Moreover, a TIPS can be used in combination with locoregional therapy in HCC patients. Systemic chemotherapy can also benefit of the use of TIPS placement. A complex interplay affects TIPS use with surgery. The latter needs further data. The TIPS is a useful and safe add-on treatment, changing the natural course of HCC progression. Its use is regulated by a sophisticated physiologic and pathophysiologic flow of evidence.

Verified
Journal Article
Open access
PDF file
MMMichele Montori
Michele Montori
Gianluca Svegliati-BaroniGianluca Svegliati-Baroni
Gianluca Svegliati-Baroni
PSPierangelo Santori
Pierangelo Santori
CGCatia Di Giampaolo
Catia Di Giampaolo
FPFrancesca Romana Ponziani
Francesca Romana Ponziani
Emidio ScarpelliniEmidio Scarpellini
Emidio Scarpellini
COVID-19 pandemic waves have hit on our lives with pulmonary and, also, gastrointestinal symptoms. The latter also includes acute liver damage linked to direct SARS-CoV-2 action and/or drug-induced (DILI) in the frame of pre-existing chronic liver disease. We aimed to review literature data regarding liver damage during COVID-19. We conducted a systematic search on the main medical databases for original articles, reviews, meta-analyses, randomized clinical trials and case series using the following keywords and acronyms and their associations: liver disease, COVID-19, acute liver damage, drug-induced liver injury, antivirals. Acute liver damage due to SARS-CoV-2 infection is common among COVID-19 patients and is generally self-limiting. However, chronic hepatic diseases, such as metabolic-associated fatty liver disease (MAFLD), are associated with a less favorable prognosis, especially when alkaline phosphatases show a significant rise. Pathophysiology of COVID-19 liver damage is multifaceted and helps understand differences in liver derangement among patients. Thus, early recognition, monitoring and treatment of liver damage are crucial in these patients. In the frame of a not-ending pandemic sustained by SARS-CoV-2, it is crucial to recognize acute hepatic decompensation due to the virus and/or drugs used for COVID-19 treatment.

14 January 2025 in Endoscopy
Verified
Journal Article
Open access
PDF file
ASAndrea Sorge
Andrea Sorge
Maria Eva ArgenzianoMaria Eva Argenziano
Maria Eva Argenziano
MMMichele Montori
Michele Montori
PPPieter Jan Poortmans
Pieter Jan Poortmans
AHAnne Hoorens
Anne Hoorens
DTDavid J Tate
David J Tate
An 80-year-old man presenting hematochezia was referred to our institution due to a 20 mm slightly elevated rectal lesion with a central depression (Paris 0–IIa+c) on the right-posterior rectal wall below the inferior Houstonʼs valve ([Video 1]). The macroscopic appearance and virtual chromoendoscopy (JNET III surface and vascular pattern) suggested a deeply invasive cancer ([Fig. 1]). Staging pelvic magnetic resonance imaging revealed rectal cancer with invasion but partial preservation of the muscularis propria (T1b/early T2) without malignant lymph nodes or extramural vascular invasion. A total body computer tomography (CT) scan did not reveal distant metastases. After a multidisciplinary team discussion, the patient refused total mesorectal excision, and an endoscopic local excision was then offered. Creating a submucosal pocket towards the deeply invasive component (pocket-detection method [1] [2]), the muscle-retracting sign indicating the deeply invasive area within the lesion was identified ([Fig. 2]) and circumferentially isolated [3]. Following multiband-and-wire pulley traction [4] application, incision of the circular layer of the muscularis propria was performed around the suspected invasive component at a safety distance of 3 mm to achieve R0 while minimising the intermuscular dissection area ([Fig. 3]). The focal endoscopic intermuscular dissection (EID) was completed without complications, and the patient was discharged 24 hours after the resection. Histopathology ([Fig. 4]) revealed a radical resection of a well-differentiated adenocarcinoma invading the muscularis propria without lymphovascular invasion or tumour budding (pT2). Given the radical resection and the patientʼs age and preference, the multidisciplinary team agreed on a follow-up. At the 3-month follow-up, there was no endoscopic recurrence or functional impairment, and the total body CT scan revealed no distant metastases. The novel focal EID guided by the pocket-detection method enabled safe and R0 resection of a T2 rectal cancer in an elderly patient refusing surgery. Focal EID may decrease the area of circular muscular resection, potentially reducing procedural time and complication rates. Endoscopy_UCTN_Code_TTT_1AQ_2AD_3AZ Article published online: 02 July 2025 © 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/). Georg Thieme Verlag KG Oswald-Hesse-Straße 50, 70469 Stuttgart, Germany