Clinical Endoscopy最新文献_第2页

Development of colonic stent simulator using three-dimensional printing technique: a simulator development study in Korea. 利用三维打印技术开发结肠支架模拟器：韩国模拟器开发研究。

IF 2.1

Clinical Endoscopy Pub Date : 2024-09-23 DOI: 10.5946/ce.2024.110

Hyundam Gu, Suyoung Lee, Sol Kim, Hye-Lim Jang, Da-Woon Choi, Kyu Seok Kim, Yu Ri Shin, Dae Young Cheung, Bo-In Lee, Jin Il Kim, Han Hee Lee

{"title":"Development of colonic stent simulator using three-dimensional printing technique: a simulator development study in Korea.","authors":"Hyundam Gu, Suyoung Lee, Sol Kim, Hye-Lim Jang, Da-Woon Choi, Kyu Seok Kim, Yu Ri Shin, Dae Young Cheung, Bo-In Lee, Jin Il Kim, Han Hee Lee","doi":"10.5946/ce.2024.110","DOIUrl":"https://doi.org/10.5946/ce.2024.110","url":null,"abstract":"Background/aims: Colonic stenting plays a vital role in the management of acute malignant colonic obstruction. The increasing use of self-expandable metal stents (SEMS) and the diverse challenges posed by colonic obstruction at various locations underscore the importance of effective training for colonic stent placement.Methods: All the components of the simulator were manufactured using silicone molding techniques in conjunction with three-dimensional (3D) printing. 3D images sourced from computed tomography scans and colonoscopy images were converted into a stereolithography format. Acrylonitrile butadiene styrene copolymers have been used in fused deposition modeling to produce moldings.Results: The simulator replicated the large intestine from the rectum to the cecum, mimicking the texture and shape of the human colon. It enables training for colonoscopy insertion, cecum intubation, loop reduction, and stenting within stenotic areas. Interchangeable stenotic modules for four sites (rectum, sigmoid colon, descending colon, and ascending colon) were easily assembled for training. These modules integrate tumor contours and blood vessel structures with a translucent center, allowing real-time visualization during stenting. Successful and repeatable demonstrations of stent insertion and expansion using the reusable SEMS were consistently achieved.Conclusions: This innovative simulator offers a secure colonic stenting practice across various locations, potentially enhancing clinical outcomes by improving operator proficiency during actual procedures.","PeriodicalId":10351,"journal":{"name":"Clinical Endoscopy","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142281297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gel immersion endoscopic mucosal resection for grade 1 rectal neuroendocrine tumors (carcinoid). 凝胶浸泡内窥镜粘膜切除术治疗 1 级直肠神经内分泌肿瘤（类癌）。

IF 2.1

Clinical Endoscopy Pub Date : 2024-09-06 DOI: 10.5946/ce.2024.064

Natsuko Saito, Takeshi Yamashina, Masaaki Shimatani

引用次数: 0

Bulging of the major duodenal papilla. 十二指肠大乳头隆起。

IF 2.1

Clinical Endoscopy Pub Date : 2024-09-06 DOI: 10.5946/ce.2024.141

Han Taek Jeong, Jimin Han

引用次数: 0

Alteration in gut microbiota after colonoscopy: proposed mechanisms and the role of probiotic interventions. 结肠镜检查后肠道微生物群的改变：拟议机制和益生菌干预措施的作用。

IF 2.1

Clinical Endoscopy Pub Date : 2024-09-02 DOI: 10.5946/ce.2024.147

Hyeong Ho Jo, Moon Young Lee, Se Eun Ha, Dong Han Yeom, Yong Sung Kim

{"title":"Alteration in gut microbiota after colonoscopy: proposed mechanisms and the role of probiotic interventions.","authors":"Hyeong Ho Jo, Moon Young Lee, Se Eun Ha, Dong Han Yeom, Yong Sung Kim","doi":"10.5946/ce.2024.147","DOIUrl":"https://doi.org/10.5946/ce.2024.147","url":null,"abstract":"Colonoscopy, a widely used procedure for diagnosing and treating colonic diseases, induces transient gastrointestinal symptoms and alterations in the gut microbiota. This review comprehensively examines the evidence on alterations in the gut microbiota following colonoscopy and their possible mechanisms. Factors such as rapid colonic evacuation, increased osmolality, and mucus thinning caused by bowel preparation and exposure to oxygen during the procedure contribute to these alterations. Typically, the alterations revert to the baseline within a short time. However, their long-term implications remain unclear, necessitating further investigation. Split-dose bowel preparation and CO2 insufflation during the procedure result in fewer alterations in the gut microbiota. Probiotic administration immediately after colonoscopy shows promise in reducing alterations and gastrointestinal symptoms. However, the widespread use of probiotics remains controversial due to the transient nature of the symptoms and microbiobial alterations in the microbiota. Probiotics may offer greater benefits to individuals with preexisting gastrointestinal symptoms. Thus, probiotic administration may be a viable option for selected patients.","PeriodicalId":10351,"journal":{"name":"Clinical Endoscopy","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Never judge a book by its cover: the role of timed barium esophagography in patients with complete symptom relief after peroral endoscopic myotomy. 切勿以貌取人：定时食管钡餐造影在口腔内窥镜肌切开术后症状完全缓解的患者中的作用。

IF 2.1

Clinical Endoscopy Pub Date : 2024-09-01 Epub Date: 2024-08-20 DOI: 10.5946/ce.2024.111

Tae Hee Lee

引用次数: 0

Efficacy of hemostasis by gastroduodenal covered metal stent placement for hemorrhagic duodenal stenosis due to pancreatobiliary cancer invasion: a retrospective study. 通过胃十二指肠金属支架止血治疗胰胆管癌浸润导致的十二指肠出血狭窄的疗效：一项回顾性研究。

IF 2.1

Clinical Endoscopy Pub Date : 2024-09-01 Epub Date: 2024-06-14 DOI: 10.5946/ce.2023.155

Yasunari Sakamoto, Taku Sakamoto, Akihiro Ohba, Mitsuhito Sasaki, Shunsuke Kondo, Chigusa Morizane, Hideki Ueno, Yutaka Saito, Yasuaki Arai, Takuji Okusaka

{"title":"Efficacy of hemostasis by gastroduodenal covered metal stent placement for hemorrhagic duodenal stenosis due to pancreatobiliary cancer invasion: a retrospective study.","authors":"Yasunari Sakamoto, Taku Sakamoto, Akihiro Ohba, Mitsuhito Sasaki, Shunsuke Kondo, Chigusa Morizane, Hideki Ueno, Yutaka Saito, Yasuaki Arai, Takuji Okusaka","doi":"10.5946/ce.2023.155","DOIUrl":"10.5946/ce.2023.155","url":null,"abstract":"Background/aims: Advanced pancreatic and biliary tract cancers can invade the duodenum and cause duodenal hemorrhagic stenosis. This study aimed to evaluate the efficacy of covered self-expandable metal stents in the treatment of cancer-related duodenal hemorrhage with stenosis.Methods: Between January 2014 and December 2016, metal stents were placed in 51 patients with duodenal stenosis. Among these patients, a self-expandable covered metal stent was endoscopically placed in 10 patients with hemorrhagic duodenal stenosis caused by pancreatobiliary cancer progression. We retrospectively analyzed the therapeutic efficacy of the stents by evaluating the technical and clinical success rates based on successful stent placement, degree of oral intake, hemostasis, stent patency, and overall survival.Results: The technical and clinical success rates were 100%. All 10 patients achieved a gastric outlet obstruction scoring system score of three within two weeks after the procedure and had no recurrence of melena. The median stent patency duration and overall survival after stent placement were 52 days (range, 20-220 days) and 66.5 days (range, 31-220 days), respectively.Conclusions: Endoscopic placement of a covered metal stent for hemorrhagic duodenal stenosis associated with pancreatic or biliary tract cancer resulted in duodenal hemostasis, recanalization, and improved quality of life.","PeriodicalId":10351,"journal":{"name":"Clinical Endoscopy","volume":" ","pages":"628-636"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11474462/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141316868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of cryoablation using a prototype cryoablation needle in swine liver. 使用原型冷冻消融针在猪肝中进行冷冻消融的评估。

IF 2.1

Clinical Endoscopy Pub Date : 2024-09-01 Epub Date: 2024-07-29 DOI: 10.5946/ce.2024.024

Hyunjoon Son, Jonghyun Lee, Sung Yong Han, Tae In Kim, Dong Uk Kim, Daejin Kim, Gun-Ho Kim

{"title":"Evaluation of cryoablation using a prototype cryoablation needle in swine liver.","authors":"Hyunjoon Son, Jonghyun Lee, Sung Yong Han, Tae In Kim, Dong Uk Kim, Daejin Kim, Gun-Ho Kim","doi":"10.5946/ce.2024.024","DOIUrl":"10.5946/ce.2024.024","url":null,"abstract":"Background/aims: Pancreatic cancer poses significant challenges due to its tendency for late-stage diagnosis and high mortality rates. Cryoablation, a technique used to treat various types of cancer, has shown potential in enhancing the prognosis of pancreatic cancer when combined with other therapies. However, its implementation is often limited by the need for lengthy procedures and specialized equipment. This study aims to develop a cryoablation needle optimized for endoscopic ultrasonography to simplify its application in treating pancreatic cancer.Methods: The study involved conducting cryoablation experiments on swine liver tissue. It utilized cryo-needles to evaluate the extent of cell death across various temperatures and durations of cryoablation.Results: The cryoablation system, which employed liquid carbon dioxide, achieved rapid cooling, reaching temperatures below -60 °C within 30 seconds and maintained the cryoablation process for 200 seconds. These conditions resulted in necrosis of the liver tissue. Notable cellular changes were observed up to 15 mm away from the cryoablation needle.Conclusions: This experimental study successfully demonstrated the efficacy of using a cryo-needle for cryoablation in swine liver tissue. Further trials involving pancreatic tissue are expected to verify its effectiveness, underscoring the importance of continued research to establish its role as a complementary therapy in pancreatic cancer treatment.","PeriodicalId":10351,"journal":{"name":"Clinical Endoscopy","volume":"57 5","pages":"675-682"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11474465/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142361230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A rare case of esophageal mucoepidermoid carcinoma successfully treated via endoscopic submucosal dissection. 一例罕见的食管黏液表皮样癌病例，通过内镜黏膜下剥离术成功治愈。

IF 2.1

Clinical Endoscopy Pub Date : 2024-09-01 Epub Date: 2024-06-18 DOI: 10.5946/ce.2024.051

So Eun Jeun, Kyung Bin Kim, Bong Eun Lee, Gwang Ha Kim, Moon Won Lee, Dong Chan Joo

{"title":"A rare case of esophageal mucoepidermoid carcinoma successfully treated via endoscopic submucosal dissection.","authors":"So Eun Jeun, Kyung Bin Kim, Bong Eun Lee, Gwang Ha Kim, Moon Won Lee, Dong Chan Joo","doi":"10.5946/ce.2024.051","DOIUrl":"10.5946/ce.2024.051","url":null,"abstract":"Esophageal mucoepidermoid carcinoma (EMEC) is a special subtype of esophageal malignancy, accounting for less than 1% of all cases of primary esophageal carcinoma. Pathologically, it consists of a mixture of adenocarcinoma and squamous cell carcinoma with mucin-secreting cells. Special staining for mucicarmine helps to diagnose EMEC. We present a rare case of EMEC successfully treated via endoscopic submucosal dissection (ESD). A 63-year-old man was referred to our tertiary hospital. On esophagogastroduodenoscopy, a 6-mm-sized subtle reddish depressed lesion was identified in the mid-esophagus. Diagnostic ESD was performed with a high suspicion of carcinoma. Histopathologic findings were consistent with EMEC which was confined to the lamina propria without lymphatic invasion. We plan to do a careful follow-up without administering adjuvant chemotherapy or radiotherapy. Due to the small volume of the lesion, establishing a diagnosis was difficult through forceps biopsy alone. However, by using ESD, we could confirm and successfully treat a rare case of early-stage EMEC.","PeriodicalId":10351,"journal":{"name":"Clinical Endoscopy","volume":" ","pages":"683-687"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11474477/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141431514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

White spots around colorectal tumors are cancer-related findings and may aid endoscopic diagnosis: a prospective study in Japan. 结肠直肠肿瘤周围的白斑是与癌症相关的发现，可能有助于内窥镜诊断：日本的一项前瞻性研究。

IF 2.1

Clinical Endoscopy Pub Date : 2024-09-01 Epub Date: 2024-06-21 DOI: 10.5946/ce.2024.027

Kai Korekawa, Yusuke Shimoyama, Fumiyoshi Fujishima, Hiroshi Nagai, Takeo Naito, Rintaro Moroi, Hisashi Shiga, Yoichi Kakuta, Yoshitaka Kinouchi, Atsushi Masamune

{"title":"White spots around colorectal tumors are cancer-related findings and may aid endoscopic diagnosis: a prospective study in Japan.","authors":"Kai Korekawa, Yusuke Shimoyama, Fumiyoshi Fujishima, Hiroshi Nagai, Takeo Naito, Rintaro Moroi, Hisashi Shiga, Yoichi Kakuta, Yoshitaka Kinouchi, Atsushi Masamune","doi":"10.5946/ce.2024.027","DOIUrl":"10.5946/ce.2024.027","url":null,"abstract":"Background/aims: During endoscopy, white spots (WS) are sometimes observed around benign or malignant colorectal tumors; however, few reports have investigated WS, and their significance remains unknown. Therefore, we investigated the significance of WS from clinical and pathological viewpoints and evaluated its usefulness in endoscopic diagnosis.Methods: Clinical data of patients with lesions diagnosed as epithelial tumors from January 1, 2019, to December 31, 2020, were analyzed (n=3,869). We also performed a clinicopathological analysis of adenomas or carcinomas treated with endoscopic resection (n=759). Subsequently, detailed pathological observations of the WS were performed.Results: The positivity rates for WS were 9.3% (3,869 lesions including advanced cancer and non-adenoma/carcinoma) and 25% (759 lesions limited to adenoma and early carcinoma). Analysis of 759 lesions showed that the WS-positive lesion group had a higher proportion of cancer cases and larger tumor diameters than the WS-negative group. Multiple logistic analysis revealed the following three statistically significant risk factors for carcinogenesis: positive WS, flat lesions, and tumor diameter ≥5 mm. Pathological analysis revealed that WS were macrophages that phagocytosed fat and mucus and were white primarily because of fat.Conclusions: WS are cancer-related findings and can become a new criterion for endoscopic resection in the future.","PeriodicalId":10351,"journal":{"name":"Clinical Endoscopy","volume":" ","pages":"637-646"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11474470/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141431515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prophylactic endoscopic transpapillary gallbladder stenting to prevent acute cholecystitis induced after metallic stent placement for malignant biliary strictures: a retrospective study in Japan. 预防性内镜胆囊支架置入术预防恶性胆道狭窄金属支架置入术后诱发的急性胆囊炎：一项回顾性研究和日本。

IF 2.1

Clinical Endoscopy Pub Date : 2024-09-01 Epub Date: 2024-05-17 DOI: 10.5946/ce.2023.284

Fumisato Kozakai, Yoshihide Kanno, Shinsuke Koshita, Takahisa Ogawa, Hiroaki Kusunose, Toshitaka Sakai, Keisuke Yonamine, Kazuaki Miyamoto, Haruka Okano, Yuto Matsuoka, Kento Hosokawa, Hidehito Sumiya, Kei Ito

{"title":"Prophylactic endoscopic transpapillary gallbladder stenting to prevent acute cholecystitis induced after metallic stent placement for malignant biliary strictures: a retrospective study in Japan.","authors":"Fumisato Kozakai, Yoshihide Kanno, Shinsuke Koshita, Takahisa Ogawa, Hiroaki Kusunose, Toshitaka Sakai, Keisuke Yonamine, Kazuaki Miyamoto, Haruka Okano, Yuto Matsuoka, Kento Hosokawa, Hidehito Sumiya, Kei Ito","doi":"10.5946/ce.2023.284","DOIUrl":"10.5946/ce.2023.284","url":null,"abstract":"Background/aims: Endoscopic biliary drainage using self-expandable metallic stents (SEMSs) for malignant biliary strictures occasionally induces acute cholecystitis (AC). This study evaluated the efficacy of prophylactic gallbladder stents (GBS) during SEMS placement.Methods: Among 158 patients who underwent SEMS placement for malignant biliary strictures between January 2018 and March 2023, 30 patients who attempted to undergo prophylactic GBS placement before SEMS placement were included.Results: Technical success was achieved in 21 cases (70.0%). The mean diameter of the cystic duct was more significant in the successful cases (6.5 mm vs. 3.7 mm, p<0.05). Adverse events occurred for 7 patients (23.3%: acute pancreatitis in 7; non-obstructive cholangitis in 1; perforation of the cystic duct in 1 with an overlap), all of which improved with conservative treatment. No patients developed AC when the GBS placement was successful, whereas 25 of the 128 patients (19.5%) without a prophylactic GBS developed AC during the median follow-up period of 357 days (p=0.043). In the multivariable analysis, GBS placement was a significant factor in preventing AC (hazard ratio, 0.61; 95% confidence interval, 0.37-0.99; p=0.045).Conclusions: GBS may contribute to the prevention of AC after SEMS placement for malignant biliary strictures.","PeriodicalId":10351,"journal":{"name":"Clinical Endoscopy","volume":" ","pages":"647-655"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11474467/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140956206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0