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1論文
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Asian journal of endoscopic surgery 11(4) 355-361 2018年11月 査読有りINTRODUCTION: Laparoscopic lateral pelvic lymph node dissection (LPLD) is technically challenging because of the complicated anatomy of the pelvic wall. To overcome this difficulty, we introduced preoperative 3-D simulation. The aim of the study is to investigate the usefulness of preoperative 3-D simulation for the safe conduct of laparoscopic LPLD for rectal cancer. METHODS: After undergoing colonoscopy, patients were brought to the radiology suite where multi-detector row CT was performed. Three-dimensional images were constructed at a workstation and showed branches of the iliac artery and vein, ureter, urinary bladder, and enlarged lymph nodes. All members of the surgical team participated in preoperative simulation using the 3-D images. RESULTS: A total of 10 patients with advanced lower rectal cancer and enlarged lateral pelvic lymph nodes underwent laparoscopic unilateral LPLD after total mesorectal excision, tumor-specific mesorectal excision, or total proctocolectomy. Four of the 10 patients (40%) had variations in pelvic vascular anatomy. The median operative time for unilateral LPLD was 91 min (range, 66-142 min) and gradually declined, suggesting a good learning curve. The median number of lateral pelvic lymph nodes harvested was nine (range, 3-16). The median estimated blood loss was 13 mL (range, 10-160 mL). No conversion to open surgery or intraoperative complications occurred. No patient had major postoperative complications. CONCLUSION: Preoperative 3-D simulation may be useful for the safe conduct of laparoscopic LPLD, especially for surgeons with limited prior experience.
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日本臨床外科学会雑誌 79(増刊) 424-424 2018年10月
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Gastroenterological Endoscopy 60(7) 1331-1337 2018年7月大腸内視鏡が左鼠径ヘルニアに嵌入し挿入困難になった3例を経験した。症例はいずれも高齢の男性であった。1例は慎重に抜去を行った後、脱出した腸管を徒手整復手技に準じて還納することで全大腸内視検査が施行可能であったが、その他2例は検査の継続が不可能であった。大腸内視鏡は広く普及している手技であるが、検査中に内視鏡が鼠径ヘルニアに嵌入した報告は極めて少ない。大腸内視鏡検査を行う上で、高齢の男性では陰嚢腫脹を伴う外鼠径ヘルニアの病歴聴取が重要である。大腸内視鏡検査中に予期せず内視鏡が鼠径ヘルニアに嵌入した場合は、一旦手技を中断し、鼠径部痛などの臨床症状の確認を行った後、慎重に抜去するのが望ましい。(著者抄録)
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Medicine 97(30) e11357 2018年7月RATIONALE: Although systemic lupus erythematosus (SLE) can be complicated by various gastrointestinal tract diseases, it is rarely associated with lupus enteritis and protein-losing enteropathy (PLE). We report here the successful surgical treatment of lupus enteritis and therapy-resistant and refractory PLE in a patient with SLE. We also provide a review of relevant literature. PATIENT CONCERNS: A 16-year-old girl presenting with polyarthritis, malar rash, and palmar erythema was indicated for steroid therapy on the basis of positive results for antinuclear, anti-Smith, and antiphospholipid antibodies, which confirmed the diagnosis of SLE. During the course of steroid therapy, the patient developed acute abdomen and hypoalbuminemia. DIAGNOSES: Computed tomography and Tc-labeled human serum albumin scintigraphy revealed abnormal findings, and a diagnosis of lupus enteritis and PLE was made. Steroid treatment was continued but no significant improvement was observed, and the patient was referred and admitted to our hospital. Double-balloon enteroscopy revealed multiple ischemic stenoses and mucosal necroses in the small intestine, suggesting that PLE was associated with ischemic enteritis due to antiphospholipid syndrome. The patient received steroids, immunosuppressive drugs, and antithrombotic therapy, with no improvement in symptoms. Thus, the disease was judged to be refractory and resistant to medical therapy, and the patient was indicated for surgical treatment. INTERVENTIONS: Partial small intestinal resection was performed by removing the segment of the small intestine presenting PLE lesions, and a double-end ileostomy was created. OUTCOMES: Multiple stenotic lesions were confirmed in the resected segment. Histopathology evaluation revealed marked inflammatory cell infiltration in the intestinal tract wall and recanalization of the vessels, suggesting a circulatory disorder caused by vasculitis and antiphospholipid syndrome. Postoperatively, the clinical course was good. Serum albumin levels and body weight increased as nutritional status improved significantly. Secondary enteroenterostomy with ileostomy closure could be performed at 2 months after the initial surgery. LESSONS: Timely surgical treatment can be successful in managing therapy-resistant and refractory PLE in patients with SLE.
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Journal of surgical case reports 2017(12) rjx247 2017年12月 査読有りMetachronous solitary metacarpal bone metastasis from rectal cancer has not been reported previously. Here, we describe a 54-year-old woman who underwent abdominoperineal resection for rectal cancer following neoadjuvant chemoradiotherapy. The resected specimen contained adenocarcinoma with no lymph node metastases (Stage II, T3N0M0); no adjuvant chemotherapy was administered. Fifteen months after surgery, the patient presented with pain and swelling of the right thumb. Radiography revealed metacarpal bone destruction, and fluorine-18 fluorodeoxyglucose positron emission tomography showed uptake only in the metacarpal bone. Open biopsy revealed an adenocarcinoma, and a right thumb resection was performed. Histological examination indicated features of adenocarcinoma similar to the findings of a rectal lesion, leading to a diagnosis of metachronous solitary metacarpal bone metastasis from rectal cancer. The patient remains free of disease after 6 years of follow-up. Our findings suggest that surgical resection may lead to favorable outcomes in patients with resectable solitary bone metastases.
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The Journal of international medical research 45(6) 1651-1657 2017年12月 査読有りObjective To investigate the potential use of high mobility group box 1 (HMGB1) as a marker for the surgical course following surgery for colorectal cancer (CRC). Methods Patients with advanced CRC undergoing open colorectal surgery who did not develop postsurgical complications were enrolled in the study. Blood samples were taken preoperatively and at 1 day, 1 week and 3 weeks after surgery for the measurement of the white blood cell count, serum C-reactive protein, serum amyloid A and HMGB1. Results Data from 21 patients were analysed. HMGB1 levels changed significantly during the surgical course, increasing from a preoperative median of 6.8 ng/ml to 12.1 ng/ml at 1 day postoperatively, and then decreasing to 8.1 ng/ml at 1 week postoperatively and 4.0 ng/ml at 3 weeks postoperatively. These changes were similar to but were not completely correlated with the changes seen in the other markers. Conclusion Serum HMGB1 may be a potential marker to monitor the surgical course in patients undergoing surgery for CRC, although further studies are warranted before it can be introduced into routine clinical practice.
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日本大腸肛門病学会雑誌 72(4) 165-170 2019年4月症例は43歳女性。S状結腸癌、転移性肝腫瘍、左卵巣腫瘍に対し腹腔鏡下S状結腸切除・肝部分切除・左付属器切除術が施行された。術後4ヵ月目に発症した絞扼性腸閉塞に対して緊急手術が施行された。原因はS状結腸の腸間膜欠損部と初回手術時に温存された上直腸動脈間が門となる内ヘルニアであった。小腸部分切除、腸間膜欠損部の縫合閉鎖を行った。腹腔鏡下大腸切除手術後、腸間膜欠損部が原因の内ヘルニアの発生率は少なく、腸間膜欠損部は閉鎖しないことが一般的である。本症例は、S状結腸が過長で、腸間膜と後腹膜の癒合が少ないという特徴があった。このような症例では術後の癒着による腸間膜欠損部の閉鎖がされず、内ヘルニアのリスクが高いと考えられ、閉鎖すべきと考えられた。(著者抄録)
共同研究・競争的資金等の研究課題
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日本学術振興会 科学研究費助成事業 2022年4月 - 2025年3月
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日本学術振興会 科学研究費助成事業 2020年4月 - 2023年3月
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日本学術振興会 科学研究費助成事業 2019年4月 - 2022年3月
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日本学術振興会 科学研究費助成事業 2017年4月 - 2020年3月