Tomoki Ogata

ORCID: 0009-0002-2953-2142
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About
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Research Areas
  • Gastrointestinal motility and disorders
  • Gallbladder and Bile Duct Disorders
  • Congenital gastrointestinal and neural anomalies
  • Helicobacter pylori-related gastroenterology studies
  • Pancreatic and Hepatic Oncology Research
  • Esophageal and GI Pathology
  • Pelvic floor disorders treatments
  • Nausea and vomiting management
  • Pain Management and Opioid Use
  • Gastrointestinal disorders and treatments
  • Pediatric Hepatobiliary Diseases and Treatments
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Diverticular Disease and Complications
  • Gastroesophageal reflux and treatments

Yokohama City University
2022-2024

Yokohama City University Hospital
2024

Kubota (Japan)
2024

PURPOSE Opioid-induced constipation is the most frequent and non–self-limiting adverse effect of opioid analgesia, reducing adherence interfering with pain relief. This clinical trial aimed to clarify preventive naldemedine versus placebo for in patients cancer starting regularly dosed strong opioids therapy. METHODS multicenter, double-blinded, randomized, placebo-controlled, confirmatory was conducted between July 2021 May 2023 at four academic hospitals Japan (ClinicalTrials.gov...

10.1200/jco.24.00381 article EN Journal of Clinical Oncology 2024-09-10

Tsumugi Jono, Yuki Kasai, Takaomi Kessoku, Tomoki Ogata, Kosuke Tanaka, Tsutomu Yoshihara, Noboru Misawa, Shingo Kato, Takuma Higurashi, Kunihiro Hosono, Masato Yoneda, Seita, Takayuki Eiji Sakai, Takeo Kurihashi, Machiko Nakatogawa, Shunsuke Oyamada, Seiji Futagami, Kok-Ann Gwee, and Atsushi Nakajima. J Neurogastroenterol Motil -0001;0:. https://doi.org/10.5056/jnm22162

10.5056/jnm22162 article SW Journal of Neurogastroenterology and Motility 2023-11-28

Abstract Background Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) often requires fistula dilation owing to the placement of large diameter delivery stent. The recently developed devices as thin 5.9/6.0 Fr may save need for dilation. Therefore, we investigated whether would be required or not in case this newly stents. Methods We conducted a retrospective study involving 33 patients implemented with self-expandable metal stent (SEMS) during EUS-HGS. were categorized based on...

10.21203/rs.3.rs-4016211/v1 preprint EN cc-by Research Square (Research Square) 2024-03-14

Although handheld ultrasound devices (HUDs) are commonplace, their ability to diagnose fecal retention (FR) remains unclear. This prospective observational study examined HUDs' usefulness in diagnosing FR patients with constipation a palliative care setting. Between 10 December 2020 and 30 June 2022, we compared rectal ultrasonographic findings obtained using HUDs clinical manifestations 64 males 70 females (48%, 52%, 68 ± 11 years old) who had undergone computed tomography (CT). was...

10.3390/diagnostics14151626 article EN cc-by Diagnostics 2024-07-28

Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) often requires fistula dilation owing to the placement of a large diameter delivery stent. The recently developed devices, which are as thin 5.9/6.0 Fr, may save need for dilation. Therefore, we investigated whether would be required or not in case this newly thin-diameter stents.

10.3390/jcm13216328 article EN Journal of Clinical Medicine 2024-10-23

Abstract Background and aim: Bifidobacterium bifidum G9-1 (BBG9-1) is a probiotic considered to be useful for constipation. However, the effect of BBG9-1 on short-chain fatty acids (SCFAs) in constipated patients has not been reported. The purpose this study was investigate association between SCFA. Methods This prospective four-center observational study. Patients with constipation were treated at 72 mg/day 8 weeks after 2-week baseline period. defined as those diagnosed Rome IV criteria....

10.21203/rs.3.rs-2001863/v1 preprint EN cc-by Research Square (Research Square) 2022-09-19
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