Background/aims: The aim of this study was to assess the efficacy and the results of ablation of Barrett'esophagus by endoscopic argon plasma coagulation (APC) followed by fundoplication.
Methodology: Between January 1999 and December 2004, 21 patients with histological proven, short BE and scheduled for fundoplication, were treated by APC. Treatment was repeated until histological confirmation of complete ablation was obtained. All patients underwent surgical correction of reflux by Nissen fundoplication. Response to treatment was assessed at follow up with endoscopy every 6 to 12 months.
Results: BE ablation was obtained in all patients after a mean of 3.6 APC sessions. There was no mortality and morbidity was 19% (4/21 patients). All patients underwent 360 degrees Nissen fundoplication as antireflux procedure. There was no operative mortality and no major complications requiring re-operation. Mean postoperative hospital stay was 7.9 days. Postoperatively 17/21 patients had at least one endoscopic control. The mean observation time was 17.5 months. Recurrence of Barrett epithelium was observed in 6 patients at a mean of 9.6 months after fundoplication.
Conclusions: Our results show that the combination of APC and fundoplication is a safe and effective treatment option for most patients with uncomplicated BE. Although no cancer development was observed, larger studies with a longer follow up are required to assess the impact of APC on cancer risk.
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Research (Wash D C)
January 2025
School of Integrated Circuits and Beijing Advanced Innovation Center for Integrated Circuits, Peking University, Beijing 100871, China.
Edge contact is essential for achieving the ultimate device pitch scaling of stacked nanosheet transistors with monolayer 2-dimensional (2D) channels. However, due to large edge-contact resistance between 2D channels and contact metal, there is currently a lack of high-performance edge-contact device technology for 2D material channels. Here, we report high-performance edge-contact monolayer molybdenum disulfide (MoS) field-effect transistors (FETs) utilizing well-controlled plasma etching techniques.
View Article and Find Full Text PDFPrz Gastroenterol
September 2024
Ward of General Surgery, Regional Hospital, Sieradz, Poland.
J Clin Gastroenterol
January 2025
Department of Gastroenterology and Hepatology Creighton University, Omaha, NE.
Introduction: Thermal ablative methods (such as argon plasma coagulation (APC) and soft tip snare coagulation (STSC) are commonly used to treat polyp margins. We aim to appraise the current literature and compare clinical outcomes between patients with treated (with APC vs. STSC) and non-treated endoscopic mucosal resection (EMR) margins.
View Article and Find Full Text PDFIGIE
December 2024
School of Computer Science, University of Oklahoma, Norman, Oklahoma, USA.
Background And Aims: Obesity is a global health concern. Bariatric surgery offers reliably effective and durable weight loss and improvements of other comorbid conditions. However, the accessibility of bariatric surgery remains limited.
View Article and Find Full Text PDFNanomaterials (Basel)
December 2024
Department of General Physics, Kazan National Research Technical University Named After A.N. Tupolev-KAI, Kazan 420111, Russia.
In this work, within the framework of a self-consistent model of arc discharge, a simulation of plasma parameters in a mixture of argon and methane was carried out, taking into account the evaporation of the electrode material in the case of a refractory and non-refractory cathode. It is shown that in the case of a refractory tungsten cathode, almost the same methane conversion rate is observed, leading to similar values in the density of the main methane conversion products (C, C, H) at different values of the discharge current density. However, with an increase in the current density, the evaporation rate of copper atoms from the anode increases, and a jump in the - characteristic is observed, caused by a change in the plasma-forming ion.
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