Publications by authors named "S Jikihara"

Article Synopsis
  • The study focuses on remnant gastric cancer (RGC) which is rare, examining clinical findings, postoperative data, and challenges in its management among 313 patients from 17 Japanese institutions.
  • Results show that a significant portion of patients had early-stage RGC, but disease recurrence rates were notable, especially within the first few years post-surgery, with peritoneal recurrence being the most common.
  • Adjuvant chemotherapy (AC) appeared to improve recurrence-free survival significantly, suggesting that AC might offer similar benefits as in primary gastric cancer despite some limitations in the study design.
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The coronavirus disease 2019 pandemic affected cancer surgeries and advanced cancer diagnoses; however, the trends in patient characteristics in medical institutions during this time, and the surgical approaches used are unclear. We investigated the impact of the pandemic on gastric and colorectal cancer surgeries in the Kinki region of Japan. We grouped 1688 gastric and 3493 colorectal cancer surgeries into three periods: "pre-pandemic" (April 2019-March 2020), "pandemic 1" (April 2020-March 2021), and "pandemic 2" (April 2021-September 2021), to investigate changes in the number of surgeries, patient characteristics, surgical approaches, and cancer progression after surgery.

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P2X receptor is an ATP-gated ion channel, mainly localized on peripheral sensory neurons. Currently, several clinical trials are being conducted with P2X receptor antagonists for the treatment of chronic pain or cough. To identify a P2X lead compound, we reexamined the HTS evaluation compounds and selected dioxotriazine derivatives from which we identified a hit compound.

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Some P2X3 receptor antagonists have been developed as new therapeutic drugs for pain. We discovered a novel chemotype of P2X3 receptor antagonists with a pyrrolinone skeleton. Because of SAR studies to improve bioavailability of lead compound 2, compound (R)-24 was identified, which showed an analgesic effect against neuropathic pain by oral administration.

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Background: Neuropathic inguinodynia following inguinal hernia repair sometimes becomes a disabling disease. We report a case of successful surgical treatment of chronic refractory neuropathic pain after inguinal hernia by laparoscopic retroperitoneal triple neurectomy.

Case Presentation: A seventy-year-old male who underwent right-side inguinal hernia repair using the Lichtenstein method revisited our hospital with inguinodynia 16 months after surgery.

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