Publications by authors named "Koji Otani"

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Dynamic analysis of lumbar spine cerebrospinal fluid flow during deep respiration using a modified time-spatial labeling inversion pulse: technical feasibility in a healthy volunteer.
Ryo Yamakuni, Shinya Seino, Shiro Ishii, Hiroaki Kondo, Hironobu Ishikawa, Koji Otani

Skeletal Radiol· January 2026

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Severe aspirin-induced enteritis in a patient with post-renal transplantation.
Noriyuki Kurimoto, Shuhei Hosomi, Rieko Nakata, Yu Nishida, Hirotsugu Maruyama, Koji Otani

Clin J Gastroenterol· December 2025

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Development of gastric mucosa-associated microbiota in autoimmune gastritis with neuroendocrine tumors.
Koji Otani, Geicho Nakatsu, Kosuke Fujimoto, Daichi Miyaoka, Noriaki Sato

J Gastroenterol· December 2025

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Thoracic ossification of the ligamentum flavum in elite athletes: a case series with surgical outcomes and return-to-play profiles.
Kinshi Kato, Kenichi Otoshi, Hiroshi Kobayashi, Kazuyuki Watanabe, Takuya Nikaido, Koji Otani

Eur Spine J· December 2025

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Thromboembolic Risk in Ulcerative Colitis Patients on Advanced Therapy: A Real-World Data Analysis.
Yu Nishida, Shuhei Hosomi, Koji Fujimoto, Yumie Kobayashi, Rieko Nakata, Koji Otani

Inflamm Bowel Dis· December 2025

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[A case of gastric emphysema with intra-abdominal free air that resolved with conservative treatment].
Soshi Hida, Akinobu Nakata, Masanori Shimamoto, Akie Kimura, Masaki Ominami, Koji Otani

Nihon Shokakibyo Gakkai Zasshi· December 2025

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A Retrospective Comparison of Postoperative Tumor Necrosis Factor-α Inhibitor Continuation versus Ustekinumab Switch in Crohn's Disease: Reset or Switch?
Shuhei Hosomi, Koji Fujimoto, Yumie Kobayashi, Rieko Nakata, Yu Nishida, Koji Otani

Inflamm Intest Dis· December 2025

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Correction: Impact of coexisting lumbar spinal stenosis and sleep disorders on fall risk: a cross-sectional study of community-dwelling residents (locomotive syndrome and health outcome in Aizu cohort study).
Hiroshi Kobayashi, Kazuyuki Watanabe, Koji Otani, Miho Sekiguchi, Rei Ono

Eur Spine J· November 2025

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Internal validation of an 11-yr prediction model for new vertebral fractures using the vertebral bone quality score: a prospective cohort study.
Takeru Yokota, Koji Otani, Yuji Endo, Kinshi Kato, Kenji Kobayashi

JBMR Plus· November 2025

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Peroral Endoscopic Myotomy-Induced Reduction of Crural Diaphragm Contractility Might Contribute to Development of Postprocedural Reflux Esophagitis.
Kei Yamamoto, Akinari Sawada, Masaki Ominami, Tadashi Ochiai, Yuki Hisaki, Koji Otani

Am J Gastroenterol· November 2025

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Ustekinumab enhances intestinal stenosis resolution by modulating fibrotic pathways in crohn's disease: a retrospective single-center study with translational analysis.
Rieko Nakata, Shuhei Hosomi, Yumie Kobayashi, Yu Nishida, Hirotsugu Maruyama, Koji Otani

BMC Gastroenterol· November 2025

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Response to the Letter by Dr. Parena Maheshwari Regarding Our Manuscript, "Asia-Pacific Survey on the Management of Helicobacter pylori Infection".
Koji Otani, Dao Viet Hang, Rapat Pittayanon, Henry Liu, Kee Huat Chuah

J Gastroenterol Hepatol· October 2025

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Propofol Sedation with a Target-Controlled Infusion Pump and Bispectral Index Monitoring System in Older Patients Undergoing Antegrade Balloon-Assisted Enteroscopy.
Natsumi Maeda, Akira Higashimori, Hiroshi Okamura, Koji Fujimoto, Yumie Kobayashi, Koji Otani

Dig Dis Sci· October 2025

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Exosomal hsa-miR-3649 and hsa-miR-202-3p in Gastric Juice as Potential Biomarkers for Functional Dyspepsia with a Previous Helicobacter pylori Infection.
Fumio Tanaka, Akinari Sawada, Yu Nishida, Hirotsugu Maruyama, Masaki Ominami, Koji Otani

Intern Med· September 2025

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Recovery Patterns of Lower Limb Motor Function Following Lumbar Spinal Stenosis Surgery: A 5-Year Retrospective Cohort Study Utilizing the Foot Tapping Test.
Hiroshi Kobayashi, Kazuyuki Watanabe, Koji Otani, Takuya Nikaido, Kinshi Kato

Spine (Phila Pa 1976)· September 2025

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Japanese 2021 nationwide survey on complications from spine surgery.
Sadayuki Ito, Shiro Imagama, Hiroaki Nakashima, Masaaki Machino, Toshinori Sakai, Koji Otani

Eur Spine J· August 2025

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Impact of coexisting lumbar spinal stenosis and sleep disorders on fall risk: a cross-sectional study of community-dwelling residents (locomotive syndrome and health outcome in Aizu cohort study).
Hiroshi Kobayashi, Kazuyuki Watanabe, Koji Otani, Miho Sekiguchi, Rei Ono

Eur Spine J· August 2025

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Untreated symptomatic lumbar spinal stenosis and health-related quality of life: the locomotive Syndrome and Health Outcome in Aizu Cohort Study (LOHAS).
Takeru Yokota, Kinshi Kato, Miho Sekiguchi, Koji Otani, Takuya Nikaido

Eur Spine J· July 2025

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Lack of Efficacy of Concomitant 5-Aminosalicylic Acid With Vedolizumab in Inflammatory Bowel Disease: A Large-Scale Administrative Database Analysis.
Yu Nishida, Shuhei Hosomi, Koji Fujimoto, Yumie Kobayashi, Rieko Nakata, Koji Otani

Inflamm Bowel Dis· July 2025

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Does 5-Aminosalicylic Acid Prevent Colorectal Cancer in Tumour Necrosis Factor: Treated Ulcerative Colitis? A Real-World Study.
Yu Nishida, Shuhei Hosomi, Koji Fujimoto, Yumie Kobayashi, Rieko Nakata, Koji Otani

Digestion· July 2025

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Nationwide analysis of spinal surgery in Japan from 1994 to 2021.
Sadayuki Ito, Shiro Imagama, Hiroaki Nakashima, Masaaki Machino, Toshinori Sakai, Koji Otani

Eur Spine J· June 2025

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Evaluation of the 22G Franseen needle and 22G Lancet needle for endoscopic ultrasonography-guided tissue acquisition sampling in solid pancreatic lesions: Propensity score weighting.
Yuki Ishikawa-Kakiya, Hirotsugu Maruyama, Kojiro Tanoue, Akira Higashimori, Masaki Ominami, Koji Otani

PLoS One· May 2025

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Anti-integrin αvβ6 autoantibody in patients with ulcerative colitis after proctocolectomy: a cross-sectional study in Japan.
Tsuyoshi Yanagida, Yu Nishida, Yumie Kobayashi, Rieko Nakata, Shuhei Hosomi, Koji Otani

Intest Res· April 2025

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Impact of Cervical Micro-Endoscopic Laminotomy on Postoperative Neck Pain and Range of Motion: A Case-Control Study.
Hiroshi Kobayashi, Takuya Nikaido, Kazuyuki Watanabe, Kinshi Kato, Yoshihiro Kobayashi, Koji Otani

Spine (Phila Pa 1976)· February 2025

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Radiographic Features of Spinal Meningioma and Schwannoma: A Novel Specific Feature-Ginkgo Leaf Sign.
Yu Toda, Masashi Miyazaki, Takaomi Kobayashi, Yoshiaki Egashira, Deokcheol Lee, Koji Otani

Spine Surg Relat Res· January 2025

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