1.Benign biliary stricture caused by transduodenal lumen-apposing metal stent placement for pancreatic acute necrotic collection
Shuhei SHINTANI ; Takuya OKAMOTO ; Kosuke HIROE ; Hidenori KIMURA ; Hiroto INOUE ; Atsushi NISHIDA ; Osamu INATOMI
International Journal of Gastrointestinal Intervention 2025;14(1):24-27
A 58-year-old male patient presented with acute alcohol-induced severe necrotizing pancreatitis. He reported a symptomatic acute necrotic collection in the pancreatic head. No improvements were observed despite one week of antimicrobial therapy. Endoscopic ultrasound-guided drainage via the superior duodenal angle was conducted and a lumen-apposing metal stent (LAMS) was placed. He had an obstructive jaundice progression 3 days postintervention. Endoscopic retrograde cholangiography showed that the cystic side flange of the LAMS caused the distal bile duct smooth stricture. The jaundice improved immediately after the placement of plastic stent in the bile duct, and the LAMS could be removed on the 15th day after placement. The plastic stent was removed after 4 months, and the biliary stricture improved, with no recurrence of jaundice. Here, we report a case of successful conservative treatment of a benign biliary stricture caused by the distal flange of the LAMS.
2.Benign biliary stricture caused by transduodenal lumen-apposing metal stent placement for pancreatic acute necrotic collection
Shuhei SHINTANI ; Takuya OKAMOTO ; Kosuke HIROE ; Hidenori KIMURA ; Hiroto INOUE ; Atsushi NISHIDA ; Osamu INATOMI
International Journal of Gastrointestinal Intervention 2025;14(1):24-27
A 58-year-old male patient presented with acute alcohol-induced severe necrotizing pancreatitis. He reported a symptomatic acute necrotic collection in the pancreatic head. No improvements were observed despite one week of antimicrobial therapy. Endoscopic ultrasound-guided drainage via the superior duodenal angle was conducted and a lumen-apposing metal stent (LAMS) was placed. He had an obstructive jaundice progression 3 days postintervention. Endoscopic retrograde cholangiography showed that the cystic side flange of the LAMS caused the distal bile duct smooth stricture. The jaundice improved immediately after the placement of plastic stent in the bile duct, and the LAMS could be removed on the 15th day after placement. The plastic stent was removed after 4 months, and the biliary stricture improved, with no recurrence of jaundice. Here, we report a case of successful conservative treatment of a benign biliary stricture caused by the distal flange of the LAMS.
3.Benign biliary stricture caused by transduodenal lumen-apposing metal stent placement for pancreatic acute necrotic collection
Shuhei SHINTANI ; Takuya OKAMOTO ; Kosuke HIROE ; Hidenori KIMURA ; Hiroto INOUE ; Atsushi NISHIDA ; Osamu INATOMI
International Journal of Gastrointestinal Intervention 2025;14(1):24-27
A 58-year-old male patient presented with acute alcohol-induced severe necrotizing pancreatitis. He reported a symptomatic acute necrotic collection in the pancreatic head. No improvements were observed despite one week of antimicrobial therapy. Endoscopic ultrasound-guided drainage via the superior duodenal angle was conducted and a lumen-apposing metal stent (LAMS) was placed. He had an obstructive jaundice progression 3 days postintervention. Endoscopic retrograde cholangiography showed that the cystic side flange of the LAMS caused the distal bile duct smooth stricture. The jaundice improved immediately after the placement of plastic stent in the bile duct, and the LAMS could be removed on the 15th day after placement. The plastic stent was removed after 4 months, and the biliary stricture improved, with no recurrence of jaundice. Here, we report a case of successful conservative treatment of a benign biliary stricture caused by the distal flange of the LAMS.
4.Palliative Radiation Therapy for Choroidal Metastases: A Report of Three Cases
Takashige KIYOTA ; Shoko TAKATA ; Akira MATSUMOTO ; Makoto OTSUKA ; Maho ITOTANI ; Toru ADACHI ; Ryoko OKI ; Kenichi KIMOTO ; Atsushi OSOEGAWA ; Kenji SUGIO ; Kazuo NISHIKAWA ; Haruto NISHIDA ; Tsutomu DAA ; Yoshiki ASAYAMA
Palliative Care Research 2022;17(1):17-22
We here report three cases of choroidal metastases with ocular pain and visual symptoms treated with palliative irradiation. Case 1: A 71-year-old woman was treated with chemotherapy for multiple metastases after surgery for right breast cancer. Sixteen years after surgery, a right choroidal metastasis with ocular pain and visual disturbance was detected. Palliative irradiation to this lesion achieved reduction in ocular pain and shrank the tumor. Case 2: A 54-year-old man presented with right ocular pain and abnormal vision and was diagnosed as having right lung cancer with multiple systemic metastases. Palliative irradiation to a right choroidal metastasis achieved reduction in ocular pain and shrank the tumor. Case 3: A 71-year-old woman developed left eye pain 17 months after surgery for lung cancer in the right upper lobe. She was diagnosed as having a left choroidal metastasis. After palliative irradiation, the tumor shrank and the left eye pain temporarily resolved. Palliative radiation therapy for choroidal metastasis with ocular pain and visual symptoms seems to be effective in improving symptoms.
5.Body composition changes following chemotherapy for testicular germ cell tumor: obesity is the long-term problem.
Yuki TAKAI ; Sei NAITO ; Hidenori KANNO ; Atsushi YAMAGISHI ; Mayu YAGI ; Toshihiko SAKURAI ; Hayato NISHIDA ; Takuya YAMANOBE ; Tomoyuki KATO ; Norihiko TSUCHIYA
Asian Journal of Andrology 2022;24(5):458-462
Metabolic syndrome is a long-term complication of systemic chemotherapy for testicular germ cell tumor (TGCT). It is believed to be caused by secondary hypogonadism or toxic medicines because of orchidectomy followed by systemic chemotherapy. In this study, changes in the body composition of patients over time were quantitatively analyzed up to 24 months after chemotherapy. This study retrospectively analyzed 44 patients with TGCT who underwent chemotherapy at our institution from January 2008 to December 2016. Subcutaneous and visceral fat areas and psoas and skeletal muscle areas were measured by computed tomography before and immediately after chemotherapy as well as 3 months, 6 months, 12 months, and 24 months after chemotherapy. The subcutaneous and visceral fat indices and psoas and skeletal muscle indices were calculated as each area divided by body height squared. The total fat area had already significantly increased 3 months after the initiation of chemotherapy (P = 0.004). However, it did not return to prechemotherapeutic levels even at 24 months after chemotherapy. The skeletal muscle area was significantly decreased at the end of chemotherapy (P < 0.001); however, the value returned to baseline within 12 months. In multivariable analysis, the prechemotherapeutic skeletal muscle index and number of chemotherapy cycles were independently associated with the reduction of skeletal muscle at the end of chemotherapy (P = 0.001 and P = 0.027, respectively). In patients with TGCT, skeletal muscle mass decreased during chemotherapy and recovered within 12 months, whereas fat mass progressively increased from the initiation of chemotherapy until 24 months after chemotherapy.
Body Composition
;
Body Mass Index
;
Humans
;
Male
;
Muscle, Skeletal
;
Neoplasms, Germ Cell and Embryonal
;
Obesity
;
Retrospective Studies
;
Sarcopenia
;
Testicular Neoplasms
6.Bispectral index-guided propofol sedation during endoscopic ultrasonography
Ayana OKAMOTO ; Ken KAMATA ; Takeshi MIYATA ; Tomoe YOSHIKAWA ; Rei ISHIKAWA ; Tomohiro YAMAZAKI ; Atsushi NAKAI ; Shunsuke OMOTO ; Kosuke MINAGA ; Kentaro YAMAO ; Mamoru TAKENAKA ; Yasutaka CHIBA ; Toshiharu SAKURAI ; Naoshi NISHIDA ; Masayuki KITANO ; Masatoshi KUDO
Clinical Endoscopy 2022;55(4):558-563
Background/Aims:
Bispectral index (BIS) monitors process and display electroencephalographic data are used to assess the depth of anesthesia. This study retrospectively evaluated the usefulness of BIS monitoring during endoscopic ultrasonography (EUS).
Methods:
This study included 725 consecutive patients who underwent EUS under sedation with propofol. BIS monitoring was used in 364 patients and was not used in 361. The following parameters were evaluated: (1) median dose of propofol; (2) respiratory and circulatory depression; (3) occurrence of body movements; (4) awakening score >8 at the time; and (5) awakening score 2 hours after leaving the endoscopy room.
Results:
The BIS group received a significantly lower median dose of propofol than the non-BIS group (159.2 mg vs. 167.5 mg; p=0.015) in all age groups. For patients aged ≥75 years, the reduction in heart rate was significantly lower in the BIS group than in the non-BIS group (1.2% vs. 9.1%; p=0.023). Moreover, the occurrence of body movements was markedly lower in the BIS group than in the non-BIS group (8.5% vs. 39.4%; p<0.001).
Conclusions
During EUS examination, BIS monitoring is useful for maintaining a constant depth of anesthesia, especially in patients 75 years of age or older.
7.Relationship between the gut microbiota and bile acid composition in the ileal mucosa of Crohn’s disease
Shigeki BAMBA ; Osamu INATOMI ; Atsushi NISHIDA ; Masashi OHNO ; Takayuki IMAI ; Kenichiro TAKAHASHI ; Yuji NAITO ; Junichi IWAMOTO ; Akira HONDA ; Naohiro INOHARA ; Akira ANDOH
Intestinal Research 2022;20(3):370-380
Background/Aims:
Crosstalk between the gut microbiota and bile acid plays an important role in the pathogenesis of gastrointestinal disorders. We investigated the relationship between microbial structure and bile acid metabolism in the ileal mucosa of Crohn’s disease (CD).
Methods:
Twelve non-CD controls and 38 CD patients in clinical remission were enrolled. Samples were collected from the distal ileum under balloon-assisted enteroscopy. Bile acid composition was analyzed by liquid chromatography-mass spectrometry. The gut microbiota was analyzed by 16S rRNA gene sequencing.
Results:
The Shannon evenness index was significantly lower in endoscopically active lesions than in non-CD controls. β-Diversity, evaluated by the UniFrac metric, revealed a significant difference between the active lesions and non-CD controls (P=0.039). The relative abundance of Escherichia was significantly higher and that of Faecalibacterium and Roseburia was significantly lower in CD samples than in non-CD controls. The increased abundance of Escherichia was more prominent in active lesions than in inactive lesions. The proportion of conjugated bile acids was significantly higher in CD patients than in non-CD controls, but there was no difference in the proportion of primary or secondary bile acids. The genera Escherichia and Lactobacillus were positively correlated with the proportion of conjugated bile acids. On the other hand, Roseburia, Intestinibacter, and Faecalibacterium were negatively correlated with the proportion of conjugated bile acids.
Conclusions
Mucosa-associated dysbiosis and the alteration of bile acid composition were identified in the ileum of CD patients. These may play a role in the pathophysiology of ileal lesions in CD patients.
8.Efficacy of Endoscopic Submucosal Dissection of Esophageal Neoplasms under General Anesthesia
Koichi HAMADA ; Koichiro KAWANO ; Atsushi YAMAUCHI ; Ryota KOYANAGI ; Yoshinori HORIKAWA ; Shinya NISHIDA ; Yoshiki SHIWA ; Noriyuki NISHINO ; Michitaka HONDA
Clinical Endoscopy 2019;52(3):252-257
BACKGROUND/AIMS: Evidence that general anesthesia (GA) reduces the operative time of esophageal endoscopic submucosal dissection (ESD) is currently insufficient. This study aims to evaluate the efficacy and safety of esophageal ESD under GA. METHODS: A total of 227 lesions from 198 consecutive patients with superficial esophageal neoplasms treated by ESD at 3 Japanese institutions between April 2011 and September 2017 were included in this retrospective study. For ESD, GA and deep sedation (DS) were used in 102 (51.5%, GA group) and 96 patients (48.5%, DS group), respectively. RESULTS: There were no statistically significant differences in age, sex, or comorbidities between the groups. In the GA group, the tumor size was larger (21 [3–77] mm vs. 14 [3–63] mm, p<0.001), luminal circumference was larger (≥2/3; 13.9% vs. 5.4%, p=0.042), procedure time was shorter (28 [5–202] min vs. 40 [8–249] min, p<0.001), and submucosal dissection speed was faster (25.2 [7.8–157.2] mm² /min vs. 16.2 [2.4–41.3] mm² /min, p<0.001). The rates of intraoperative perforation and aspiration pneumonia were lower in the GA group, but the difference did not achieve statistical significance (p=0.242 and p=0.242). CONCLUSIONS: GA shortens the procedure time of esophageal ESD.
Anesthesia
;
Anesthesia, General
;
Asian Continental Ancestry Group
;
Comorbidity
;
Deep Sedation
;
Esophageal Neoplasms
;
Humans
;
Operative Time
;
Phenobarbital
;
Pneumonia, Aspiration
;
Retrospective Studies
9.Efficacy and safety of cold forceps polypectomy utilizing the jumbo cup: a prospective study
Hiroshi HASEGAWA ; Shigeki BAMBA ; Kenichiro TAKAHASHI ; Masaki MURATA ; Taketo OTSUKA ; Hiroshi MATSUMOTO ; Takehide FUJIMOTO ; Rie OSAK ; Hirotsugu IMAEDA ; Atsushi NISHIDA ; Hiromitsu BAN ; Ayano SONODA ; Osamu INATOMI ; Masaya SASAKI ; Mitsushige SUGIMOTO ; Akira ANDOH
Intestinal Research 2019;17(2):265-272
BACKGROUND/AIMS: There are few prospective studies on cold forceps polypectomy (CFP) using jumbo cup forceps. Therefore, we examined patients with diminutive polyps (5 mm or smaller) treated with CFP using jumbo cup forceps to achieve an adenoma-free colon and also assessed the safety of the procedure and the recurrence rate of missed or residual polyp after CFP by performing follow-up colonoscopy 1 year later. METHODS: We included patients with up to 5 adenomas removed at initial colonoscopy and analyzed data from a total of 361 patients with 573 adenomas. One-year follow-up colonoscopy was performed in 165 patients, at which 251 lesions were confirmed. RESULTS: The one-bite resection rate with CFP was highest for lesions 3 mm or smaller and decreased significantly with increasing lesion size. Post-procedural hemorrhage was observed in 1 of 573 lesions (0.17%). No perforation was noted. The definite recurrence rate was 0.8% (2/251 lesions). The probable recurrence rate, which was defined as recurrence in the same colorectal segment, was 17%. Adenoma-free colon was achieved in 55% of patients at initial resection. Multivariate analysis revealed that achievement of an adenoma-free colon was significantly associated with number of adenomas and years of endoscopic experience. CONCLUSIONS: CFP using jumbo biopsy forceps was safe and showed a high one-bite resection rate for diminutive lesions of 3 mm or smaller. The low definite recurrence rate confirms the reliability of CFP using jumbo biopsy forceps. Number of adenomas and years of endoscopic experience were key factors in achieving an adenoma-free colon.
Adenoma
;
Biopsy
;
Colon
;
Colonoscopy
;
Follow-Up Studies
;
Hemorrhage
;
Humans
;
Multivariate Analysis
;
Polyps
;
Prospective Studies
;
Recurrence
;
Surgical Instruments
10.Magnified single-balloon enteroscopy in the diagnosis of intestinal follicular lymphoma: a case series.
Kenichiro TAKAHASHI ; Shigeki BAMBA ; Masahiro KAWAHARA ; Atsushi NISHIDA ; Osamu INATOMI ; Masaya SASAKI ; Tomoyuki TSUJIKAWA ; Ryoji KUSHIMA ; Mitsushige SUGIMOTO ; Katsuyuki KITOH ; Akira ANDOH
Intestinal Research 2018;16(4):628-634
The objective of this study was to evaluate the magnified endoscopic findings in the diagnosis of follicular lymphoma in the small intestine in comparison with those of intestinal follicular lymphoma and lymphangiectasia. Four patients with follicular lymphoma and 3 with lymphangiectasia in the small intestine were retrospectively analyzed. A prototype magnifying singleballoon enteroscope was used. The findings of the intestinal follicular lymphoma and lymphangiectasia were retrospectively analyzed to determine the magnified endoscopic findings of follicular lymphoma in the small intestine. Opaque white granules were observed in 3 of the 4 patients with follicular lymphoma. Magnified narrow-band imaging (NBI) of the opaque white granules showed stretched microvessels, which had a diminutive tree-like appearance. The remaining patient had no opaque white granules and only displayed whitish villi. Magnified NBI observation of the whitish villi revealed the absence of marginal villus epithelium, which was confirmed by histology. The magnified NBI enteroscopy revealed the diminutive tree-like appearance on the opaque white granules and the absence of marginal villus epithelium of the whitish villi in intestinal follicular lymphoma. These findings may be useful in diagnosing follicular lymphoma.
Diagnosis*
;
Epithelium
;
Humans
;
Intestine, Small
;
Lymphoma, Follicular*
;
Microvessels
;
Narrow Band Imaging
;
Retrospective Studies


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