Ai Fujimoto
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Author Swipe
View article: Effect of family history on detection of adenomas and sessile serrated lesions in individuals aged 40s
Effect of family history on detection of adenomas and sessile serrated lesions in individuals aged 40s Open
BACKGROUND According to the guidelines in the United States, individuals with a family history of colorectal cancer should be screened at the age of 40 years. Data on the prevalence of adenomas and sessile serrated lesions (SSLs) in indivi…
View article: Characteristics of Successful Third-Line Eradication of Helicobacter pylori based on Antibiotic Susceptibility
Characteristics of Successful Third-Line Eradication of Helicobacter pylori based on Antibiotic Susceptibility Open
VPZ, AMX, and STFX regimens were the most common and effective regimens, with female and AMX-sensitive patients more likely to have successful third-line eradication.
View article: Efficacy of additional tissue sections for diminutive colorectal adenomas pathologically diagnosed as normal mucosa: a retrospective, cross-sectional study in Japan
Efficacy of additional tissue sections for diminutive colorectal adenomas pathologically diagnosed as normal mucosa: a retrospective, cross-sectional study in Japan Open
Background/Aims: Endoscopists occasionally encounter discrepancies between endoscopic and pathological diagnoses after colorectal polypectomies. This study aimed to evaluate the efficacy of additional sections for diagnostic discrepancies.…
View article: Endoscopic resection of a giant juvenile polyp in a pediatric patient: a case report
Endoscopic resection of a giant juvenile polyp in a pediatric patient: a case report Open
View article: The Efficacy of Texture and Color Enhancement Imaging Observation in the Detection of Colorectal Lesions: A Multicenter, Randomized Controlled Trial (deTXIon Study)
The Efficacy of Texture and Color Enhancement Imaging Observation in the Detection of Colorectal Lesions: A Multicenter, Randomized Controlled Trial (deTXIon Study) Open
This study did not demonstrate the superiority of TXI over WLI in detecting neoplastic lesions. However, TXI may be effective in detecting flat polyps. (Clinical trial registration: jRCT1032230089.).
View article: Optimal Predictive Control Using Quaternion-valued Neural Network-based System Identification
Optimal Predictive Control Using Quaternion-valued Neural Network-based System Identification Open
View article: Significance of Endoscopic Redness of Duodenum in Health Checkup
Significance of Endoscopic Redness of Duodenum in Health Checkup Open
Background and Aim It is important for endoscopist to diagnose the lesion redness. In this study, we focused on the redness of duodenal bulb. We objectively analyzed the changes in redness of the duodenal bulb using linked color imaging (L…
View article: Effectiveness of a novel <i>ex vivo</i> training model for gastric endoscopic submucosal dissection training: a prospective observational study conducted at a single center in Japan
Effectiveness of a novel <i>ex vivo</i> training model for gastric endoscopic submucosal dissection training: a prospective observational study conducted at a single center in Japan Open
Background/Aims: The efficacy of endoscopic submucosal dissection (ESD) for early-stage gastric cancer is well established. However, its acquisition is challenging owing to its complexity. In Japan, G-Master is a novel ex vivo gastric ESD …
View article: A case of Dieulafoy's lesion of the small intestine treated successfully by endoscopic hemostasis
A case of Dieulafoy's lesion of the small intestine treated successfully by endoscopic hemostasis Open
A 23-year-old man was presented to the emergency room with bloody stools. His vital signs were stable on admission, but a blood test showed anemia (hemoglobin 10.9 g/dL). Contrast-enhanced computed tomography showed no obvious extravasatio…
View article: A case of advanced gastric cancer in which endoscopic ultrasound-fine needle aspiration was useful for diagnosis
A case of advanced gastric cancer in which endoscopic ultrasound-fine needle aspiration was useful for diagnosis Open
A 70-year-old woman visited our hospital with a chief complaint of loss of appetite.
View article: An effective endoscopic hand-suturing method for fistula closure after endoscopic transgastric drainage for walled-off necrosis
An effective endoscopic hand-suturing method for fistula closure after endoscopic transgastric drainage for walled-off necrosis Open
Video 1How to use an endoscopic hand-suturing device (video version).
View article: Complete response to pembrolizumab plus chemotherapy in a case of unresectable advanced esophageal cancer
Complete response to pembrolizumab plus chemotherapy in a case of unresectable advanced esophageal cancer Open
A 74-year-old woman visited our hospital with a chief complaint of anterior thoracic discomfort while eating. Esophagogastroduodenoscopy (EGD) revealed two type 2 neoplastic lesions in the 24 cm and 32 cm incisors. Squamous cell carcinoma …
View article: Successful hemostasis after rebleeding of a diverticular hemorrhage achieved with a combination of clipping and an absorbable local hemostatic agent
Successful hemostasis after rebleeding of a diverticular hemorrhage achieved with a combination of clipping and an absorbable local hemostatic agent Open
A man in his 70s with lower gastrointestinal bleeding was admitted to the emergency department. The next day, a total colonoscopy (TCS) revealed blood clots in a sigmoid colon diverticulum. When the clots were removed, pulsatile bleeding o…
View article: A case of benign duodenal stenosis of unknown cause successfully treated with endoscopic balloon dilation
A case of benign duodenal stenosis of unknown cause successfully treated with endoscopic balloon dilation Open
A woman in her 80s was previously diagnosed with a ring ulcer in the descending part of the duodenum. She experienced recurrent ulcerations in the same part of the duodenum. The resulting scars caused progressive narrowing of the duodenum,…
View article: A Novel Hemostatic Peptide Solution for Common Acute Gastrointestinal Bleeding Diseases: First Case Series Study on the Treatment Results of Endoscopic Hemostasis by Nonexpert Endoscopists
A Novel Hemostatic Peptide Solution for Common Acute Gastrointestinal Bleeding Diseases: First Case Series Study on the Treatment Results of Endoscopic Hemostasis by Nonexpert Endoscopists Open
Introduction: We investigated the hemostatic effect and safety of a hemostatic peptide solution for the treatment of gastrointestinal bleeding requiring emergency endoscopy. Methods: We retrospectively examined …
View article: A new treatment method for patients with cancer that cannot be resected en bloc by endoscopic submucosal dissection: the monorail method with clip-line traction
A new treatment method for patients with cancer that cannot be resected en bloc by endoscopic submucosal dissection: the monorail method with clip-line traction Open
Endoscopic submucosal dissection (ESD) is a safe endoscopic treatment for early-stage cancer of the esophagus, stomach, duodenum, and colon [1]. However, there are some cases in which ESD is difficult to resect en bloc owing to the locatio…
View article: A case of sigmoid cancer diagnosed by EUS-FNA using a convex type forward-oblique viewing echoendoscope
A case of sigmoid cancer diagnosed by EUS-FNA using a convex type forward-oblique viewing echoendoscope Open
We report a case of colorectal cancer diagnosed by EUS-FNA using forward-view echo endoscope. A woman in her 50s who was introduced on suspicion of colon infiltration of other organ cancer. Her mass was located approximately 40 cm from her…
View article: Efficacy and Safety of a Novel Hemostatic Peptide Solution During Endoscopic Submucosal Dissection: A Multicenter Randomized Controlled Trial
Efficacy and Safety of a Novel Hemostatic Peptide Solution During Endoscopic Submucosal Dissection: A Multicenter Randomized Controlled Trial Open
INTRODUCTION: To compare the effectiveness of the novel hemostatic peptide, TDM-621, with that of conventional hemostatic methods in treating intraoperative blood oozing during endoscopic submucosal dissection (ESD). METHODS: This multicen…
View article: Simple drainage versus drainage with minocycline infusion for symptomatic hepatic cysts
Simple drainage versus drainage with minocycline infusion for symptomatic hepatic cysts Open
Percutaneous treatment of symptomatic hepatic cysts includes simple drainage and drainage with sclerosing agents. We compared the efficacy of simple drainage with that of drainage with minocycline infusion for treating symptomatic hepatic …
View article: Dual functions of discoidinolysin, a cholesterol-dependent cytolysin with N-terminal discoidin domain produced from <i>Streptococcus mitis</i> strain Nm-76
Dual functions of discoidinolysin, a cholesterol-dependent cytolysin with N-terminal discoidin domain produced from <i>Streptococcus mitis</i> strain Nm-76 Open
DLY functions as a hemolysin/cytolysin and erythrocyte aggregation/intercellular association molecule. This dual-function DLY could be an additional virulence factor in S. mitis.
View article: Fluoroscopic balloon dilatation with antegrade and retrograde endoscopes is useful for complete pharyngoesophageal obstruction after radiation therapy
Fluoroscopic balloon dilatation with antegrade and retrograde endoscopes is useful for complete pharyngoesophageal obstruction after radiation therapy Open
Radiation therapy for pharyngoesophageal cancer can lead to severe esophageal stricture in the irradiation field [1]. Balloon dilation is often the primary mode of treatment [2]; however, in cases with severe stenosis, dilation using anteg…
View article: Report of an esophageal pyogenic granuloma that grew rapidly in one year
Report of an esophageal pyogenic granuloma that grew rapidly in one year Open
A 73-year-old female patient underwent esophago-gastro-duodenoscopy (EGD) because of a sore throat. The EGD detected a prominent granulomatous lesion in the middle of the esophagus, a finding that had not appeared in an EGD performed one y…
View article: Clinical usefulness of red dichromatic imaging in hemostatic treatment during endoscopic submucosal dissection: First report from a multicenter, open‐label, randomized controlled trial
Clinical usefulness of red dichromatic imaging in hemostatic treatment during endoscopic submucosal dissection: First report from a multicenter, open‐label, randomized controlled trial Open
Objectives To verify the efficacy and safety of red dichromatic imaging (RDI) in hemostatic procedures during endoscopic submucosal dissection (ESD). Methods This is a multicenter randomized controlled trial of 404 patients who underwent E…
View article: Pseudomelanosis Duodeni Appearing after Oral Iron Therapy
Pseudomelanosis Duodeni Appearing after Oral Iron Therapy Open
Pseudomelanosis duodeni is a rare condition characterized by the endoscopic appearance of diffuse dark pigmentation of the duodenal mucosa. It is typically seen in older women and has been reported to be associated with hypertension, chron…
View article: Visibility of the bleeding point in acute rectal hemorrhagic ulcer using red dichromatic imaging: A case report
Visibility of the bleeding point in acute rectal hemorrhagic ulcer using red dichromatic imaging: A case report Open
RDI may improve visualization of the bleeding point by providing better contrast in color difference relative to surrounding blood.
View article: Complete closure versus simple closure for perforations during colorectal endoscopic submucosal dissection
Complete closure versus simple closure for perforations during colorectal endoscopic submucosal dissection Open
Background and study aims The efficacy of complete closure versus simple closure for perforations during endoscopic submucosal dissection (ESD) has never been evaluated. We evaluated the efficacy of complete closure and simple closure for …
View article: Salvage endoscopic submucosal dissection for incompletely resected esophageal or gastric neoplasms (case series)
Salvage endoscopic submucosal dissection for incompletely resected esophageal or gastric neoplasms (case series) Open
Background and study aims Given that positive lateral margins indicate possible residual carcinoma, salvage endoscopic submucosal dissection (ESD) should be considered for curative therapy. Presence of submucosal fibrosis, however, makes t…
View article: Utility of Dual Red Imaging for Endoscopic Hemostasis of Gastric Ulcer Bleeding
Utility of Dual Red Imaging for Endoscopic Hemostasis of Gastric Ulcer Bleeding Open
Dual red imaging (DRI; Red Dichromatic Imaging (RDI)) is a new type of image-enhanced endoscopy composed of two long wavelengths that together can visualize vessels in the deep submucosa of the gastrointestinal wall. We treated a case of g…
View article: Efficacy of mucosa-submucosa clip closure method after gastric endoscopic submucosal dissection
Efficacy of mucosa-submucosa clip closure method after gastric endoscopic submucosal dissection Open
The endoscopic mucosa-submucosa clip closure method was unreliable after gastric ESD, especially in cases with a high closure difficulty index.
View article: Predictors of technical difficulty with duodenal ESD
Predictors of technical difficulty with duodenal ESD Open
Background and study aims Duodenal endoscopic submucosal dissection (ESD) is still considered technically challenging; however, few studies have objectively analyzed predictors of the technical difficulty. Therefore, the aim of the current…