Publications by authors named "Nicole Van der Wielen"

Introduction: Minimally invasive techniques have shown better short term and similar oncological outcomes compared to open techniques in the treatment of gastric cancer in Asian countries. It remains unknown whether these outcomes can be extrapolated to Western countries, where patients often present with advanced gastric cancer.

Materials And Methods: A pooled analysis of two Western randomized controlled trials (STOMACH and LOGICA trial) comparing minimally invasive gastrectomy (MIG) and open gastrectomy (OG) in advanced gastric cancer was performed.

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Background: Adequate lymphadenectomy is an important step in gastrectomy for cancer, with a modified D2 lymphadenectomy being recommended for advanced gastric cancers. When assessing a novel technique for the treatment of gastric cancer, lymphadenectomy should be non-inferior. The aim of this study was to assess completeness of lymphadenectomy and distribution patterns between open total gastrectomy (OTG) and minimally invasive total gastrectomy (MITG) in the era of peri-operative chemotherapy.

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Introduction: Minimally invasive techniques show improved short-term and comparable long-term outcomes compared to open techniques in the treatment of gastric cancer and improved survival has been seen with the implementation of multimodality treatment. Therefore, focus of research has shifted towards optimizing treatment regimens and improving quality of life.

Materials And Methods: A randomized trial was performed in thirteen hospitals in Europe.

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Background: Surgical resection with adequate lymphadenectomy is regarded the only curative option for gastric cancer. Regarding minimally invasive techniques, mainly Asian studies showed comparable oncological and short-term postoperative outcomes. The incidence of gastric cancer is lower in the Western population and patients often present with more advanced stages of disease.

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Background: Esophageal cancer is surgically treated by means of an esophagectomy. However, esophagectomies are associated with high morbidity rates with dehiscence of the anastomosis occurring in 19% of these procedures in the Netherlands. Application of a fibrin sealant may improve mechanical strength of the anastomosis.

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Background: It is imperative for surgeons to have a proper knowledge of the omental bursa in order to perform an adequate dissection during minimally invasive surgery (MIS) of the upper gastrointestinal (GI) tract. This study aimed to describe (1) the various approaches which can be used to enter the bursa and to perform a complete lymphadenectomy, (2) the boundaries and anatomical landmarks of the omental bursa as seen during MIS, and (3) whether a bursectomy should be performed for oncological reasons in upper GI cancer.

Methods: In this observational study, videos of 20 patients undergoing different MIS procedures were reviewed, and the findings were verified prospectively in 5 patients undergoing a total gastrectomy and in a transversely sectioned cadaver.

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Objective: Minimally invasive surgical techniques for gastric cancer are gaining more interest worldwide. Several Asian studies have proven the benefits of minimally invasive techniques over the open techniques. Nevertheless, implementation of this technique in Western countries is gradual.

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Background: The frequency of metabolic and bariatric surgery (MBS) is increasing worldwide, with over 500,000 cases performed every year. Obstructive sleep apnea (OSA) is present in 35%-94% of MBS patients. Nevertheless, consensus regarding the perioperative management of OSA in MBS patients is not established.

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Background: Survival rates after a total gastrectomy with adequate lymphadenectomy are improving, leading to a shift in outcomes of interest from survival to postoperative outcomes and symptoms. In this systematic review, we investigate gastrointestinal symptoms that occur after a gastrectomy in relation to exocrine pancreatic insufficiency and the effect of pancreatic exocrine enzyme supplementation on these symptoms.

Methods: Online databases PubMed, Embase, and Cochrane Library were systematically searched in accordance with the PRISMA guidelines.

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Background: Anastomotic leakage following esophageal surgery is a major contributor to mortality. According to the national database leakage occurs in 20% of esophagectomies carried out in the Netherlands. Therefore anastomotic leakage has been the topic of many studies.

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Objective: The aim of this study was to investigate 3-year survival following a randomized controlled trial comparing minimally invasive with open esophagectomy in patients with esophageal cancer.

Background: Research on minimally invasive esophagectomy (MIE) has shown faster postoperative recovery and a marked decrease in pulmonary complications. Debate is ongoing as to whether the procedure is equivalent to open resection regarding oncologic outcomes.

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Since the first laparoscopic procedure, there has been an steady increase in advanced minimally invasive surgery. These procedures include oncological colorectal, hepatobiliary and upper gastrointestinal surgery. Implementation of these procedures requires different and new skills for the surgeons who wish to perform these procedures.

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Background: Over the last decades longevity has increased significantly, with more octogenarians undergoing surgery. Here, we assess surgical outcomes after major abdominal surgery in octogenarians.

Methods: Observational cohort of 874 patients undergoing major abdominal elective surgery between January 2009 and March 2014.

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Background: During esophageal dissection and lymphadenectomy of the upper mediastinum by thoracoscopy in prone position, we observed a complex anatomy in which we had to resect the esophagus, dissect vessels and nerves, and take down some of these in order to perform a complete lymphadenectomy. In order to improve the quality of the dissection and standardization of the procedure, we describe the surgical anatomy and steps involved in this procedure.

Methods: We retrospectively evaluated twenty consecutive and unedited videos of thoracoscopic esophageal resections.

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Minimally invasive esophagectomy (MIE) by thoracoscopy after neoadjuvant therapy results in significant short-term advantages such as a lower incidence of pulmonary infections and a better quality of life (QoL) with the same completeness of resection. After 1 year, a better QoL is still observed for MIE in comparison with the open approach, while having the same survival. Seven issues about implementation of MIE for cancer require discussion: (1) choice of the extension of esophageal resection and use of neoadjuvant therapy; (2) reasons to approach the esophageal cancer by MIE; (3) determining the best minimally invasive approach for gastro-esophageal junction cancers; (4) implementation of evidence-based MIE; (5) standardization of the surgical anatomy of the esophagus based on MIE; (6) future lines of research of MIE; and (7) learning process.

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Introduction: Esophagectomy for cancer can be performed in a two-stage procedure with an intrathoracic anastomosis: the Ivor Lewis esophagectomy. A growing incidence of distal and gastroesophageal junction adenocarcinomas and increasing use of minimally invasive techniques have prompted interest in this procedure. The aim of this study was to assess short-term results of minimally invasive Ivor Lewis esophagectomy (MIE-IL).

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Minimally invasive surgical techniques for gastric cancer are gaining more acceptance worldwide as an alternative to open resection. In order to assess the role of minimally invasive and open techniques in total gastrectomy for cancer, a systematic review and meta-analysis was performed. Articles comparing minimally invasive versus open total gastrectomy were reviewed, collected from the Medline, Embase, and Cochrane databases.

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Background: Gastric cancer is responsible for 10 % of all cancer-related deaths worldwide. With improved operative techniques and neo-adjuvant therapy, survival rates are increasing. Outcomes of interest are shifting to quality of life (QOL), with many different tools available.

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Background: Laparoscopic surgery has been shown to provide important advantages in comparison with open procedures in the treatment of several malignant diseases, such as less perioperative blood loss and faster patient recovery. It also maintains similar results with regard to tumor resection margins and oncological long-term survival. In gastric cancer the role of laparoscopic surgery remains unclear.

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