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  1. Article

    Open Access

    Relationships Between Changes in Serum Ketone Body Levels and Metabolic Effects in Patients with Severe Obesity Who Underwent Laparoscopic Sleeve Gastrectomy

    Serum ketone bodies increase due to dynamic changes in the lipid metabolisms of patients undergoing bariatric surgery. However, there have been few studies on the role of ketone bodies after bariatric surgery....

    Akira Umemura, Akira Sasaki, Hideki Kumagai, Yota Tanahashi in Obesity Surgery (2024)

  2. No Access

    Article

    Elective Laparoscopic Repair of Obturator Hernia Using a Mesh Plug Following Ultrasound-Guided Manual Reduction

    Obturator hernia (OH) is a rare form of pelvic hernia that constitutes less than 1% of all abdominal hernias. Due to the rarity of obturator hernia, there is no standardized recommendation for treatment, and p...

    Toma Kawashima, Yoshihiro Shioi, Hajime Sato, Hideki Kumagai in Indian Journal of Surgery (2023)

  3. No Access

    Article

    Clinical outcome of ulcerative colitis with severe onset in children: a multicenter prospective cohort study

    As best practices for treating children with severe-onset ulcerative colitis remain controversial in the era of biologic agents, we prospectively investigated treatments and outcomes in a multicenter cohort.

    Ryusuke Nambu, Katsuhiro Arai, Takahiro Kudo in Journal of Gastroenterology (2023)

  4. Article

    A Pediatric Case of Wheat-Dependent, Exercise-Induced Anaphylaxis Solely Associated with High-Molecular-Weight Glutenin

    Chika Watanabe, Yusuke Ando, Hideki Kumagai in Indian Journal of Pediatrics (2022)

  5. Article

    Open Access

    Axillary schwannoma mimicking lymph node metastasis-associated breast cancer: a case report

    Axillary schwannoma associated with breast cancer is an extremely rare disease, and previous reports have been limited. In this setting, there is great concern about whether a tumor in the axillary region is l...

    Hideki Kumagai, Kou Takehana, Yoshihiro Shioi, Chihiro Tono in Surgical Case Reports (2022)

  6. No Access

    Article

    Reduction of acute gastric volvulus in a 3-year-old using a balloon-attached endoscope combined with gel immersion endoscopy

    When performing endoscopic reduction in patients with gastric volvulus, it is important to maintain a low level of intragastric pressure and to fix the endoscope in the duodenum. Gel immersion endoscopy is a n...

    Koji Yokoyama, Tomonori Yano, Hideki Kumagai in Clinical Journal of Gastroenterology (2022)

  7. No Access

    Article

    Juvenile polyposis syndrome-hereditary hemorrhagic telangiectasia associated with a SMAD4 mutation in a girl

    Juvenile polyposis syndrome (JPS) and hereditary hemorrhagic telangiectasia (HHT) are both relatively rare hereditary disorders. Some patients with the SMAD4 gene mutation develop both JPS and HHT, a condition te...

    Yusuke Hashimoto, Koji Yokoyama, Hideki Kumagai in Clinical Journal of Gastroenterology (2020)

  8. No Access

    Article

    A boy with duodenocolic fistula mimicking functional gastrointestinal disorder

    Duodenocolic fistula (DCF) is a rare disorder defined by the presence of an internal fistula between the duodenum and colon. Colon cancer, Crohn’s disease, diverticulum and duodenal ulcer are common causes of ...

    Yuko Okada, Koji Yokoyama, Tomonori Yano in Clinical Journal of Gastroenterology (2019)

  9. No Access

    Article

    Mesalazine allergy in a boy with ulcerative colitis: clinical usefulness of mucosal biopsy criteria

    5-Aminosalicylic acid preparations have been used as first-line drugs for treatment of ulcerative colitis (UC). However, some patients with UC present with exacerbation of symptoms because of allergy to mesala...

    Shoya Wada, Hideki Kumagai, Koji Yokoyama in Clinical Journal of Gastroenterology (2016)

  10. No Access

    Article

    A 4-year-old girl with chronic nonspecific multiple ulcers of the small intestine diagnosed by double-balloon endoscopy

    We present the youngest patient reported to date with chronic nonspecific multiple ulcers of the small intestine (CNSU) diagnosed by double-balloon endoscopy (DBE). A 3-year-old girl was referred to our depart...

    Hisayuki Tsukahara, Hideki Kumagai, Tomonori Yano in Clinical Journal of Gastroenterology (2014)

  11. No Access

    Article

    Transmission of 100-MHz-range ultrasound through a fused quartz fiber

    This paper describes an investigation into direct observation of microscopic images of tissue using a thin acoustic wave guide.

    Takasuke Irie, Norio Tagawa, Masayuki Tanabe in Journal of Medical Ultrasonics (2011)

  12. No Access

    Article

    Hypokalemic rhabdomyolysis in a child with Gitelman’s syndrome

    We report here the first published case of a pediatric patient with Gitelman’s syndrome (GS) in whom hypokalemia-associated rhabdomyolysis developed. A 13-year-old girl was admitted with weakness of the extrem...

    Hideki Kumagai, Shizuko Matsumoto, Kandai Nozu in Pediatric Nephrology (2010)