Publications by authors named "Valmasoni M"

Background: The aim of this prospective, controlled study was to assess the 5-year follow-up of Laparoscopic Heller-Dor (LHD) in patients with esophago-gastric junction outflow obstruction (EGJOO), compared with achalasia patients (ACH). The management of EGJOO reflects the experience gained with esophageal achalasia, for which LHD has been proven to be an effective long-term treatment. Prospective long-term results of LHD in EGJOO patients are still lacking.

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Background: There is no consensus on the definition of failure after treatment in patients with achalasia. The Eckardt score is used to define clinical outcomes. However, objective metrics are lacking.

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Background: Most existing literature studies reported that laparoscopic fundoplication (LF) is safe in the setting of ineffective or weak peristalsis. However, the effect of the wrap on esophageal motility is still debated. This study aimed to assess how a functioning and effective fundoplication could affect esophageal motility in patients with gastroesophageal reflux disease (GERD).

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Background: In the last 3 decades, laparoscopic Heller myotomy (LHM) has represented the treatment of choice for esophageal achalasia, solving symptoms in most patients. Little is known about the fate of patients relapsing after LHM or their treatment. In this study, we aimed at evaluating the results of complementary pneumatic dilations (CPDs) after ineffective LHM.

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Despite the increased incidence of esophageal cancer (EC) in elderly people, there are no clear guidelines for its treatment in these patients. The aim of this study was to compare the outcomes of patients ≥ 75 years with resectable EC, receiving either upfront esophagectomy or neoadjuvant treatment. : We retrospectively identified 127 patients with resectable EC ≥ 75 years who underwent esophagectomy between January 2000 and December 2022 at our Clinic in the University Hospital of Padova.

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Background: Adhesive small bowel obstruction (ASBO) is a leading cause of hospitalization in emergency surgery. The occurrence of bowel ischemia significantly increases the morbidity and mortality rates associated with this condition. Current clinical, biochemical and radiological parameters have poor predictive value for bowel ischemia.

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Background: The treatment of patients with end-stage achalasia with a sigmoid-shaped esophagus is particularly challenging. A modified technique (pull-down technique) has been developed to straighten the esophageal axis, but only a limited number of studies on this topic are available in the literature. This study aimed to compare the outcome of patients who underwent the pull-down technique with that of patients who had a classical laparoscopic Heller-Dor (CLHD) myotomy.

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Background: The pathophysiological and clinical value of performing High-Resolution Manometry (HRM) after laparoscopic fundoplication (LF) for gastroesophageal reflux disease (GERD) is still unclear and debated.

Objective: We sought to establish the HRM parameters indicative of functioning fundoplications, and whether HRM could distinguish them from tight or defective ones.

Methods: The study involved patients with GERD who underwent laparoscopic Nissen (LN) or Toupet (LT) fundoplication between 2010 and 2022.

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Background: Surgical oncological emergencies represent a frequent challenge in acute settings, with postoperative courses characterized by high morbidity and mortality. An accurate selection of patients who could benefit from surgery is essential to avoid unnecessary invasive treatment. In this study, we tried to determine if advanced age (>80 years) represents a risk factor for negative short-term outcome in patients undergoing emergency surgery for acute abdominal oncological illness.

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It is well known by surgeons that patient positioning is fundamental to exposing the organs when performing an operation via laparoscopy, as gravity can help move the organs and facilitate the exposure of the surgical site. But is it also important for endoscopic procedures? This paper examines various types of endoscopic operations and addresses the issue of the patient's position. The patient's position can be changed not only by rotating the patient along the head-toe axis but also by tilting the surgical bed, as is undertaken during laparoscopic surgical procedures.

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Background: Rhabdomyolysis is a life-threatening condition, often leading to progressive renal failure and death. It is caused by destruction of skeletal muscle and the release of myoglobin and other intracellular contents into the circulation. The most frequent cause of this condition is "crush syndrome", although several others have been described and paraneoplastic inflammatory myopathies associated with various types of cancer are repeatedly reported.

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Purpose: The optimal neoadjuvant treatment for resectable carcinoma of the thoracic esophagus (TE) or gastroesophageal junction (GEJ) remains a matter of debate. We performed an individual participant data (IPD) network meta-analysis (NMA) of randomized controlled trials (RCTs) to study the effect of chemotherapy or chemoradiotherapy, with a focus on tumor location and histology subgroups.

Patients And Methods: All, published or unpublished, RCTs closed to accrual before December 31, 2015 and having compared at least two of the following strategies were eligible: upfront surgery (S), chemotherapy followed by surgery (CS), and chemoradiotherapy followed by surgery (CRS).

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Introduction: Several studies reported the advantages of minimally invasive esophagectomy over the conventional open approach, particularly in terms of postoperative morbidity and mortality. The literature regarding the elderly population is however scarce and it is still not clear whether elderly patients may benefit from a minimally invasive approach as the general population. We sought to evaluate whether thoracoscopic/ laparoscopic (MIE) or fully robotic (RAMIE) Ivor-Lewis esophagectomy significantly reduces postoperative morbidity in the elderly population.

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Pancreatic metastases from other neoplasms are rare. The role of surgery for this clinical entity is unclear. The aim of this study was to investigate the role of resection in patients with pancreatic secondary lesions.

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Symptoms of Zenker diverticulum can recur whatever the type of primary treatment administered. A modified transoral stapler-assisted septotomy (TS) was introduced in clinical practice a few years ago to improve the results of this mini-invasive technique. The aim of this prospective, controlled study was to assess the outcome of TS in patients with recurrent Zenker diverticulum (RZD), as compared with patients with treatment-naïve Zenker diverticulum (NZD).

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Gastroesophageal adenocarcinoma is a challenging disease due to its poor prognosis and the presence of few therapeutic options. For these reasons, it is mandatory to identify the subgroup of patients who are at high risk for relapse after curative-intention surgery. In the last years, liquid biopsy has aroused great interest in cancer treatment for its feasibility and the possibility to capture tumor heterogeneity in a real-time way.

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Esophageal reconstruction through bio-engineered allografts that highly resemble the peculiar properties of the tissue extracellular matrix (ECM) is a prospective strategy to overcome the limitations of current surgical approaches. In this work, human esophagus was decellularized for the first time in the literature by comparing three detergent-enzymatic protocols. After decellularization, residual DNA quantification and histological analyses showed that all protocols efficiently removed cells, DNA (<50 ng/mg of tissue) and muscle fibers, preserving collagen/elastin components.

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Background: The end-stage achalasia is a difficult condition to treat, for the esophageal diameter and conformation of the gullet, that may progress to a sigmoid shape. The aim of this study was to examine the outcome of Laparoscopic Heller-Dor in patients with end-stage achalasia, comparing them with patients who had mega-esophagus without a sigmoid shape.

Methods: From 1992 to 2020, patients with a diagnosis of sigmoid esophagus, or radiological stage IV achalasia (the SE group), and patients with a straight esophagus larger than 6 cm in diameter, or radiological stage III achalasia (the NSE group), were all treated with LHD.

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The comprehensive molecular characterization of gastric and gastroesophageal junction adenocarcinomas has led to the improvement of targeted and more effective treatments. As a result, several biomarkers have been introduced into clinical practice and the implementation of innovative diagnostic tools is under study. Such assessments are mainly based on the evaluation of limited biopsy material in clinical practice.

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Purpose: Radiation-induced esophageal cancer (RIEC) is a rare but severe late consequence of radiotherapy. The literature regarding this topic is predominately limited in describing the risk of this disease. Tumor behavior, treatment strategies, and prognosis of this cancer remain poorly defined.

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Background: Preoperative chemotherapy or chemoradiotherapy is the standard treatment for resectable esophageal cancer (EC); however, it is associated with increased postoperative complications and mortality. Recently, Immune Checkpoint inhibitors have been incorporated in the treatment of advanced EC. Its role in the preoperative setting has not been established yet.

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Introduction: Strengthening The Reporting Of Cohort Studies in Surgery (STROCSS) guidelines were developed in 2017 in order to improve the reporting quality of observational studies in surgery and updated in 2019. In order to maintain relevance and continue upholding good reporting quality among observational studies in surgery, we aimed to update STROCSS 2019 guidelines.

Methods: A STROCSS 2021 steering group was formed to come up with proposals to update STROCSS 2019 guidelines.

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Background: Esophageal perforation (EP) is characterized by high morbidity and mortality. The Pittsburgh Severity Score (PSS) is a scoring system based on clinical factors at the time of EP presentation, intended to guide treatment. The aim of the study is to verify PSS usefulness in stratifying EP severity and in guiding clinical decisions.

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Introduction: Which neoadjuvant treatment for locally advanced thoracic oesophagus (TE) or gastro-oesophageal junction carcinoma is best remains an open question. Randomised controlled trials variously accrued patients with adenocarcinoma and squamous cell carcinoma, making strong conclusions hard to obtain. The primary objective of this individual participant data meta-analysis was to investigate the effect of neoadjuvant chemotherapy on overall survival (OS).

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