Non-exposed endoscopic wall-inversion surgery for a gastrointestinal stromal tumor of the stomach: A case report

Mahawongkajit, Prasit; Techagumpuch, Ajjana; Suthiwartnarueput, Worapop

doi:10.3892/ol.2017.6787

Cited by 7 publications

(4 citation statements)

References 11 publications

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“…A computed tomography scan accidentally found a gastric mass protruding into the lumen. Although their research has certain feasibility, it lacks specific experimental content [1,2]. Rausch et al believe that most gastrointestinal stromal tumors (GISTs) are caused by activated mutations of kit receptor tyrosine kinases.…”

Section: Introductionmentioning

confidence: 99%

CT Image Examination Based on Virtual Reality Analysis in Clinical Diagnosis of Gastrointestinal Stromal Tumors

Wang

Cai

et al. 2021

Journal of Healthcare Engineering

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With the advancement and development of medical equipment, CT images have become a common lung examination tool. This article mainly studies the application of CT imaging examination based on virtual reality analysis in the clinical diagnosis of gastrointestinal stromal tumors. Before extracting suspected lymph nodes from a CT image of the stomach, the CT image sequence is preprocessed first, which can reduce the cumbersomeness of subsequent extraction of suspected lymph nodes and speed up the subsequent processing. According to medical knowledge, CT images of the stomach show that lymph nodes mainly exist in the adipose tissue around the gastric wall, but there are no lymph nodes in the subcutaneous fat outside the chest. The most basic gray value in the image and the neighborhood average difference feature related to gray level are used as the primary features of visual attention detection. When extracting the neighborhood average difference feature, we use a 3 ∗ 3 sliding window method to traverse each point of the pixel matrix in the image, thereby calculating the feature value of each pixel in the image. After the feature extraction is completed, it is necessary to calibrate the data and make a training data set. The SP immunohistochemical staining method was used. The specimens were fixed with 10% formaldehyde, routinely embedded in paraffin, sectioned, and stained with HE. The tumor tissue was determined by immunohistochemistry, and the reagents were products of Maixin Company. All patients were followed up by regular outpatient review, letters, and visits or phone calls. The data showed that immunohistochemical tumor cells showed positive staining for CD117 (14/15, 93.3%) and CD34 (10/15, 66.7%). The results show that the application of virtual reality technology to CT imaging examination can significantly improve the diagnostic accuracy of gastrointestinal stromal tumors.

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Section: Introductionmentioning

confidence: 99%

CT Image Examination Based on Virtual Reality Analysis in Clinical Diagnosis of Gastrointestinal Stromal Tumors

Wang

Cai

et al. 2021

Journal of Healthcare Engineering

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“…Similar to NEWS, clean-NET has also been developed to prevent cancer cell spillage [ 10 46 47 ]. First, the localization of EGC is performed with an endoscope, and saline is injected into the submucosal layer.…”

Section: Lecs Procedures For Benign Gastric Tumorsmentioning

confidence: 99%

Choice of LECS Procedure for Benign and Malignant Gastric Tumors

2021

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Laparoscopic endoscopic cooperative surgery (LECS) refers to the endoscopic dissection of the mucosal or submucosal layers with laparoscopic seromuscular resection. We recommend a treatment algorithm for the LECS procedure for gastric benign tumors according to the protruding type. In the exophytic type, endoscopic-assisted wedge resection can be performed. In the endophytic type, endoscopic-assisted wedge resection of the anterior wall is relatively easy to perform, and endoscopic-assisted transgastric resection, laparoscopic-assisted intragastric surgery, or single-incision intragastric resection in the posterior wall and esophagogastric junction (EG Jx) can be attempted. We propose an algorithm for the LECS procedure for early gastric cancer according to the tumor location. The endoscopic submucosal dissection (ESD) procedure can be adapted for all areas of the stomach, and single-incision ESD can be performed in the mid to high body and the EG Jx. In full-thickness gastric resection, laparoscopy-assisted endoscopic full-thickness resection can be adapted for the entire area of the stomach, but it cannot be applied to the pyloric and EG Jx. In conclusion, surgeons need to select the LECS procedure according to tumor type, tumor location, the surgeon's individual experience, and the situation of the institution while also considering the advantages and disadvantages of each procedure.

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“…NEWS carries the major advantage of being highly accurate in determining the resection line with no risk of peritoneal contamination, and avoids exposure of the tumor into the peritoneal cavity, and it is is feasible for SETs <3 cm in greatest diameter (8)(9)(10)(11)(12)(13)(14)(15)(16)(17). To the best of our knowledge, our group reported the first case on NEWS of the stomach (18) and first part of the duodenum in Thailand (19). The aim of the present study was to further investigate the feasibility, efficacy and safety of laparoscopy-assisted EFTR for upper gastrointestinal SETs and to evaluate the clinical outcome.…”

Section: Introductionmentioning

confidence: 99%

Laparoscopy‑assisted endoscopic full‑thickness resection of upper gastrointestinal subepithelial tumors: A single‑center early experience

Mahawongkajit

Chanswangphuvana

2020

mol clin onc

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Recently, there have been important developments in minimally invasive full-thickness resection of subepithelial tumors (SETs) of the upper gastrointestinal tract. However, there remain challenges with techniques such as laparoscopy-endoscopy cooperative surgery (LECS) and non-exposed endoscopic wall-inversion surgery (NEWS). The aim of the present study was to further investigate the feasibility, efficacy and safety of laparoscopy-assisted endoscopic full-thickness resection (ETFR) of SETs and to evaluate the clinical outcomes. This retrospective study included 16 patients with upper gastrointestinal SETs who underwent laparoscopy-assisted EFTR between July 2016 and December 2017. The patient characteristics, surgical outcomes, postoperative course, results of the histopathological examination and short-term outcomes were reviewed and analyzed. A total of 10 patients in the LECS group and 6 patients in the NEWS group presented with SETs in the stomach (15 cases) or duodenum (1 case). The mean tumor size in the LECS group (5.6 cm) was larger compared with that in the NEWS group (2.1 cm). R0 resection was achieved in all patients, without adverse events or tumor recurrence. The NEWS group exhibited a lower white blood cell count and C-reactive protein level on the first postoperative day, reflecting the less prominent inflammatory response, less bleeding and shorter hospitalization. Therefore, laparoscopy-assisted EFTR by LECS and NEWS is a feasible and safe minimally invasive treatment option for upper gastrointestinal SETs in selected patients.

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Non-exposed endoscopic wall-inversion surgery for a gastrointestinal stromal tumor of the stomach: A case report

Cited by 7 publications

References 11 publications

CT Image Examination Based on Virtual Reality Analysis in Clinical Diagnosis of Gastrointestinal Stromal Tumors

CT Image Examination Based on Virtual Reality Analysis in Clinical Diagnosis of Gastrointestinal Stromal Tumors

Choice of LECS Procedure for Benign and Malignant Gastric Tumors

Laparoscopy‑assisted endoscopic full‑thickness resection of upper gastrointestinal subepithelial tumors: A single‑center early experience

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