1.Long-Term Response Durability of Infliximab for Pediatric Inflammatory Bowel Disease in Japan: A Single Center Experience
Naoya TSUMURA ; Ken KATO ; Ryosuke YASUDA ; Shinichiro YOSHIOKA ; Hidetoshi TAKEDATSU ; Tatsuki MIZUOCHI
Pediatric Gastroenterology, Hepatology & Nutrition 2025;28(3):166-175
Purpose:
The long-term efficacy and safety of infliximab (IFX) in Japanese children with inflammatory bowel disease (IBD) remain unclear. This study aimed to examine the longterm outcomes of IFX treatment in Japanese children with IBD.
Methods:
We retrospectively recruited patients aged <16 years who were diagnosed with ulcerative colitis (UC) or Crohn’s disease (CD) at Kurume University Hospital in Japan between 2011 and 2022 and examined the effectiveness and safety of IFX. We characterized the responses to IFX as primary response, primary nonresponse (PNR), secondary loss of response (sLOR), or still receiving IFX.
Results:
Among the 77 enrolled patients with UC (median age, 10 years) and 48 with CD (median age, 12 years), 55 (27 with UC and 28 with CD) received IFX treatment. IFX treatment was significantly more common in patients with CD (58.3%) than in those with UC (35.1%;p=0.016). The PNR was significantly greater in patients with UC (18.5%) than in those with CD (0.0%; p=0.023), as was the sLOR (UC, 51.9%; CD, 21.4%; p=0.026). The likelihood of continuing IFX treatment during follow-up (median, 38 months) was significantly higher in patients with CD (71.4%) than in those with UC (29.6%; p=0.003). Adverse events resulting in the discontinuation of IFX occurred in 3.6% of the patients; one patient with CD developed leukemia, and the other had a serious infusion reaction.
Conclusion
The long-term durability of IFX in Japanese pediatric patients with IBD was inadequate in UC compared with CD. Serious adverse events in 3.6% of patients required discontinuation.
2.Long-Term Response Durability of Infliximab for Pediatric Inflammatory Bowel Disease in Japan: A Single Center Experience
Naoya TSUMURA ; Ken KATO ; Ryosuke YASUDA ; Shinichiro YOSHIOKA ; Hidetoshi TAKEDATSU ; Tatsuki MIZUOCHI
Pediatric Gastroenterology, Hepatology & Nutrition 2025;28(3):166-175
Purpose:
The long-term efficacy and safety of infliximab (IFX) in Japanese children with inflammatory bowel disease (IBD) remain unclear. This study aimed to examine the longterm outcomes of IFX treatment in Japanese children with IBD.
Methods:
We retrospectively recruited patients aged <16 years who were diagnosed with ulcerative colitis (UC) or Crohn’s disease (CD) at Kurume University Hospital in Japan between 2011 and 2022 and examined the effectiveness and safety of IFX. We characterized the responses to IFX as primary response, primary nonresponse (PNR), secondary loss of response (sLOR), or still receiving IFX.
Results:
Among the 77 enrolled patients with UC (median age, 10 years) and 48 with CD (median age, 12 years), 55 (27 with UC and 28 with CD) received IFX treatment. IFX treatment was significantly more common in patients with CD (58.3%) than in those with UC (35.1%;p=0.016). The PNR was significantly greater in patients with UC (18.5%) than in those with CD (0.0%; p=0.023), as was the sLOR (UC, 51.9%; CD, 21.4%; p=0.026). The likelihood of continuing IFX treatment during follow-up (median, 38 months) was significantly higher in patients with CD (71.4%) than in those with UC (29.6%; p=0.003). Adverse events resulting in the discontinuation of IFX occurred in 3.6% of the patients; one patient with CD developed leukemia, and the other had a serious infusion reaction.
Conclusion
The long-term durability of IFX in Japanese pediatric patients with IBD was inadequate in UC compared with CD. Serious adverse events in 3.6% of patients required discontinuation.
3.Long-Term Response Durability of Infliximab for Pediatric Inflammatory Bowel Disease in Japan: A Single Center Experience
Naoya TSUMURA ; Ken KATO ; Ryosuke YASUDA ; Shinichiro YOSHIOKA ; Hidetoshi TAKEDATSU ; Tatsuki MIZUOCHI
Pediatric Gastroenterology, Hepatology & Nutrition 2025;28(3):166-175
Purpose:
The long-term efficacy and safety of infliximab (IFX) in Japanese children with inflammatory bowel disease (IBD) remain unclear. This study aimed to examine the longterm outcomes of IFX treatment in Japanese children with IBD.
Methods:
We retrospectively recruited patients aged <16 years who were diagnosed with ulcerative colitis (UC) or Crohn’s disease (CD) at Kurume University Hospital in Japan between 2011 and 2022 and examined the effectiveness and safety of IFX. We characterized the responses to IFX as primary response, primary nonresponse (PNR), secondary loss of response (sLOR), or still receiving IFX.
Results:
Among the 77 enrolled patients with UC (median age, 10 years) and 48 with CD (median age, 12 years), 55 (27 with UC and 28 with CD) received IFX treatment. IFX treatment was significantly more common in patients with CD (58.3%) than in those with UC (35.1%;p=0.016). The PNR was significantly greater in patients with UC (18.5%) than in those with CD (0.0%; p=0.023), as was the sLOR (UC, 51.9%; CD, 21.4%; p=0.026). The likelihood of continuing IFX treatment during follow-up (median, 38 months) was significantly higher in patients with CD (71.4%) than in those with UC (29.6%; p=0.003). Adverse events resulting in the discontinuation of IFX occurred in 3.6% of the patients; one patient with CD developed leukemia, and the other had a serious infusion reaction.
Conclusion
The long-term durability of IFX in Japanese pediatric patients with IBD was inadequate in UC compared with CD. Serious adverse events in 3.6% of patients required discontinuation.
4.Long-Term Response Durability of Infliximab for Pediatric Inflammatory Bowel Disease in Japan: A Single Center Experience
Naoya TSUMURA ; Ken KATO ; Ryosuke YASUDA ; Shinichiro YOSHIOKA ; Hidetoshi TAKEDATSU ; Tatsuki MIZUOCHI
Pediatric Gastroenterology, Hepatology & Nutrition 2025;28(3):166-175
Purpose:
The long-term efficacy and safety of infliximab (IFX) in Japanese children with inflammatory bowel disease (IBD) remain unclear. This study aimed to examine the longterm outcomes of IFX treatment in Japanese children with IBD.
Methods:
We retrospectively recruited patients aged <16 years who were diagnosed with ulcerative colitis (UC) or Crohn’s disease (CD) at Kurume University Hospital in Japan between 2011 and 2022 and examined the effectiveness and safety of IFX. We characterized the responses to IFX as primary response, primary nonresponse (PNR), secondary loss of response (sLOR), or still receiving IFX.
Results:
Among the 77 enrolled patients with UC (median age, 10 years) and 48 with CD (median age, 12 years), 55 (27 with UC and 28 with CD) received IFX treatment. IFX treatment was significantly more common in patients with CD (58.3%) than in those with UC (35.1%;p=0.016). The PNR was significantly greater in patients with UC (18.5%) than in those with CD (0.0%; p=0.023), as was the sLOR (UC, 51.9%; CD, 21.4%; p=0.026). The likelihood of continuing IFX treatment during follow-up (median, 38 months) was significantly higher in patients with CD (71.4%) than in those with UC (29.6%; p=0.003). Adverse events resulting in the discontinuation of IFX occurred in 3.6% of the patients; one patient with CD developed leukemia, and the other had a serious infusion reaction.
Conclusion
The long-term durability of IFX in Japanese pediatric patients with IBD was inadequate in UC compared with CD. Serious adverse events in 3.6% of patients required discontinuation.
5.Long-Term Response Durability of Infliximab for Pediatric Inflammatory Bowel Disease in Japan: A Single Center Experience
Naoya TSUMURA ; Ken KATO ; Ryosuke YASUDA ; Shinichiro YOSHIOKA ; Hidetoshi TAKEDATSU ; Tatsuki MIZUOCHI
Pediatric Gastroenterology, Hepatology & Nutrition 2025;28(3):166-175
Purpose:
The long-term efficacy and safety of infliximab (IFX) in Japanese children with inflammatory bowel disease (IBD) remain unclear. This study aimed to examine the longterm outcomes of IFX treatment in Japanese children with IBD.
Methods:
We retrospectively recruited patients aged <16 years who were diagnosed with ulcerative colitis (UC) or Crohn’s disease (CD) at Kurume University Hospital in Japan between 2011 and 2022 and examined the effectiveness and safety of IFX. We characterized the responses to IFX as primary response, primary nonresponse (PNR), secondary loss of response (sLOR), or still receiving IFX.
Results:
Among the 77 enrolled patients with UC (median age, 10 years) and 48 with CD (median age, 12 years), 55 (27 with UC and 28 with CD) received IFX treatment. IFX treatment was significantly more common in patients with CD (58.3%) than in those with UC (35.1%;p=0.016). The PNR was significantly greater in patients with UC (18.5%) than in those with CD (0.0%; p=0.023), as was the sLOR (UC, 51.9%; CD, 21.4%; p=0.026). The likelihood of continuing IFX treatment during follow-up (median, 38 months) was significantly higher in patients with CD (71.4%) than in those with UC (29.6%; p=0.003). Adverse events resulting in the discontinuation of IFX occurred in 3.6% of the patients; one patient with CD developed leukemia, and the other had a serious infusion reaction.
Conclusion
The long-term durability of IFX in Japanese pediatric patients with IBD was inadequate in UC compared with CD. Serious adverse events in 3.6% of patients required discontinuation.
6.Phase I/II prospective clinical trial for the hybrid of intracavitary and interstitial brachytherapy for locally advanced uterine cervical cancer
Naoya MURAKAMI ; Miho WATANABE ; Takashi UNO ; Shuhei SEKII ; Kayoko TSUJINO ; Takahiro KASAMATSU ; Yumiko MACHITORI ; Tomomi AOSHIKA ; Shingo KATO ; Hisako HIROWATARI ; Yuko KANEYASU ; Tomio NAKAGAWA ; Hitoshi IKUSHIMA ; Ken ANDO ; Masumi MURATA ; Ken YOSHIDA ; Hiroto YOSHIOKA ; Kazutoshi MURATA ; Tatsuya OHNO ; Noriyuki OKONOGI ; Anneyuko I. SAITO ; Mayumi ICHIKAWA ; Takahito OKUDA ; Keisuke TSUCHIDA ; Hideyuki SAKURAI ; Ryoichi YOSHIMURA ; Yasuo YOSHIOKA ; Atsunori YOROZU ; Naonobu KUNITAKE ; Hiroyuki OKAMOTO ; Koji INABA ; Tomoyasu KATO ; Hiroshi IGAKI ; Jun ITAMI
Journal of Gynecologic Oncology 2023;34(3):e24-
Objective:
The purposes of this trial were to demonstrate the feasibility and effectiveness of the hybrid of intracavitary and interstitial brachytherapy (HBT) for locally advanced cervical cancer patients in the phase I/II prospective clinical trial.
Methods:
Patients with FIGO stage IB2-IVA uterine cervical cancer pretreatment width of which was ≥5 cm measured by magnetic resonance imaging were eligible for this clinical trial. The protocol therapy included 30–30.6 Gy in 15–17 fractions of whole pelvic radiotherapy concurrent with weekly CDDP, followed by 24 Gy in 4 fractions of HBT and pelvic radiotherapy with a central shield up to 50–50.4 Gy in 25–28 fractions. The primary endpoint of phase II part was 2-year pelvic progression-free survival (PPFS) rate higher than historical control of 64%.
Results:
Between October 2015 and October 2019, 73 patients were enrolled in the initial registration and 52 patients proceeded to the secondary registration. With the median follow-up period of 37.3 months (range, 13.9–52.9 months), the 2- PPFS was 80.7% (90% confidence interval [CI]=69.7%–88%). Because the lower range of 90% CI of 2-year PPFS was 69.7%, which was higher than the historical control ICBT data of 64%, therefore, the primary endpoint of this study was met.
Conclusion
The effectiveness of HBT were demonstrated by a prospective clinical study. Because the dose goal determined in the protocol was lower than 85 Gy, there is room in improvement for local control. A higher dose might have been needed for tumors with poor responses.
7.Intraperitoneal bleeding from the right gastroepiploic artery by endoscopic ultrasonography: a case report
Koji TAKAHASHI ; Hiroshi OHYAMA ; Rintaro MIKATA ; Hiroki NAGASHIMA ; Izumi OHNO ; Yuichi TAKIGUCHI ; Naoya KATO
Journal of Rural Medicine 2022;17(3):184-188
Objective: To describe the case of a patient with intraperitoneal bleeding from the gastroepiploic artery by endoscopic ultrasound who was successfully treated with transcatheter arterial coil embolization.Patient and Methods: An 87-year-old man was referred to our hospital for examination of a gallbladder tumor. Endoscopic ultrasonography was performed using an oblique-view echoendoscope. After the endoscopic ultrasound, the patient went into shock. Computed tomography revealed a huge intraperitoneal hematoma and an aneurysm in the right gastroepiploic artery that were not seen on previous computed tomography images. Thus, urgent catheter angiography was performed, which showed a pseudoaneurysm of the right gastroepiploic artery and extravasation of the contrast medium from the pseudoaneurysm.Results: Transcatheter arterial coil embolization was subsequently performed, and the bleeding stopped. Thereafter, his hemodynamics stabilized and his general condition improved. The patient was discharged 22 days post-treatment with an uneventful course.Conclusion: Observation-only endoscopic ultrasound without invasive procedures can cause intraperitoneal bleeding due to a ruptured splanchnic artery. Thus, endoscopic ultrasonography should be performed more carefully in elderly patients.
8.Successful endoscopic retrieval of a migrated pancreatic stent using a basket catheter for peroral cholangioscopy through a biliary plastic stent pusher tube: a case report
Koji TAKAHASHI ; Hiroshi OHYAMA ; Rintaro MIKATA ; Hiroki NAGASHIMA ; Izumi OHNO ; Yuichi TAKIGUCHI ; Naoya KATO
Journal of Rural Medicine 2022;17(3):189-192
Objective: Retrieval is challenging once prophylactic pancreatic stents migrate deep into the pancreatic duct. Herein, we describe a case of successful endoscopic retrieval of a migrated prophylactic pancreatic stent using a basket catheter through a biliary plastic stent pusher tube.Patient: A 71 year-old man was referred to our hospital for removal of a straight-shaped migrated 5-Fr 3-cm prophylactic pancreatic stent with a flap on the duodenal side. There were no subjective symptoms at the time of the hospital visit.Results: During endoscopic retrograde cholangiopancreatography, we inserted an 8.5-Fr plastic biliary stent pusher tube in front of the migrated pancreatic stent. The stent was then grasped using a basket catheter for peroral cholangioscopy through the biliary stent pusher tube. The stent was pulled into the pusher tube and was successfully retrieved from the pancreatic duct. No complications were associated with endoscopic retrograde cholangiopancreatography.Conclusion: Although rare, prophylactic pancreatic duct stent migration after pancreatic duct guidewire placement should be noted. In our case, endoscopic retrieval of a migrated prophylactic pancreatic stent using a basket catheter for peroral cholangioscopy through the biliary plastic stent pusher tube was successful.
9.Clinical Characteristics of Esophageal Motility Disorders in Patients With Heartburn
Satsuki TAKAHASHI ; Tomoaki MATSUMURA ; Tatsuya KANEKO ; Mamoru TOKUNAGA ; Hirotaka OURA ; Tsubasa ISHIKAWA ; Ariki NAGASHIMA ; Wataru SHIRATORI ; Naoki AKIZUE ; Yuki OHTA ; Atsuko KIKUCHI ; Mai FUJIE ; Keiko SAITO ; Kenichiro OKIMOTO ; Daisuke MARUOKA ; Tomoo NAKAGAWA ; Makoto ARAI ; Jun KATO ; Naoya KATO
Journal of Neurogastroenterology and Motility 2021;27(4):545-554
Background/Aims:
Esophageal motility disorders (EMDs) contribute to the pathophysiology of gastroesophageal reflux disease. However, the causes of EMDs and their impact on gastroesophageal reflux disease-associated symptoms remain unknown. This study aims to elucidate clinical features associated with various types of EMDs in patients with heartburn symptoms.
Methods:
Of the 511 patients who underwent high-resolution manometry, 394 who were evaluated for heartburn symptoms were examined. Patients subjected to high-resolution manometry were classified into 4 groups: outflow obstruction group, hypermotility group, hypomotility group, and normal motility group. Symptoms were evaluated using 3 questionnaires. Patient characteristics and symptoms for each EMD type were compared with those of the normal motility group.
Results:
Of the 394 patients, 193 (48.9%) were diagnosed with EMDs, including 71 with outflow obstruction, 15 with hypermotility, and 107 with hypomotility. The mean dysphagia score was significantly higher in each of the 3 EMD groups compared with those with normal motility. The mean acid reflux and dyspepsia scores were significantly lower in the outflow obstruction group (P < 0.05). The mean body mass index and median Brinkman index were significantly higher in the hypermotility group (P = 0.001 and P = 0.018, respectively), whereas the mean diarrhea and constipation scores were significantly lower in the hypomotility group (P < 0.05).
Conclusions
The results of our study indicate that different EMDs have distinct characteristics. Cigarette smoking and high body mass index were associated with esophageal hypermotility. Assessment of the dysphagia symptom scores may help identify patients with EMDs.
10.Clinical Characteristics of Esophageal Motility Disorders in Patients With Heartburn
Satsuki TAKAHASHI ; Tomoaki MATSUMURA ; Tatsuya KANEKO ; Mamoru TOKUNAGA ; Hirotaka OURA ; Tsubasa ISHIKAWA ; Ariki NAGASHIMA ; Wataru SHIRATORI ; Naoki AKIZUE ; Yuki OHTA ; Atsuko KIKUCHI ; Mai FUJIE ; Keiko SAITO ; Kenichiro OKIMOTO ; Daisuke MARUOKA ; Tomoo NAKAGAWA ; Makoto ARAI ; Jun KATO ; Naoya KATO
Journal of Neurogastroenterology and Motility 2021;27(4):545-554
Background/Aims:
Esophageal motility disorders (EMDs) contribute to the pathophysiology of gastroesophageal reflux disease. However, the causes of EMDs and their impact on gastroesophageal reflux disease-associated symptoms remain unknown. This study aims to elucidate clinical features associated with various types of EMDs in patients with heartburn symptoms.
Methods:
Of the 511 patients who underwent high-resolution manometry, 394 who were evaluated for heartburn symptoms were examined. Patients subjected to high-resolution manometry were classified into 4 groups: outflow obstruction group, hypermotility group, hypomotility group, and normal motility group. Symptoms were evaluated using 3 questionnaires. Patient characteristics and symptoms for each EMD type were compared with those of the normal motility group.
Results:
Of the 394 patients, 193 (48.9%) were diagnosed with EMDs, including 71 with outflow obstruction, 15 with hypermotility, and 107 with hypomotility. The mean dysphagia score was significantly higher in each of the 3 EMD groups compared with those with normal motility. The mean acid reflux and dyspepsia scores were significantly lower in the outflow obstruction group (P < 0.05). The mean body mass index and median Brinkman index were significantly higher in the hypermotility group (P = 0.001 and P = 0.018, respectively), whereas the mean diarrhea and constipation scores were significantly lower in the hypomotility group (P < 0.05).
Conclusions
The results of our study indicate that different EMDs have distinct characteristics. Cigarette smoking and high body mass index were associated with esophageal hypermotility. Assessment of the dysphagia symptom scores may help identify patients with EMDs.


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