1.Endoscopic ultrasound-guided drainage of postoperative pancreatic fluid collections
Shigeru NISHIYAMA ; Takeshi HISA ; Aki EGO ; Shogo SAKATA ; Yui ITO ; Akiharu KUDO ; Takahiro YAMADA ; Shozo OSERA ; Hideki FUKUSHIMA ; Shunta ISHIZAKI ; Ryoga HAMURA ; Masashi TSUNEMATSU ; Kyohei ABE ; Yoshihiro SHIRAI ; Shinji ONDA
International Journal of Gastrointestinal Intervention 2025;14(1):15-19
Background:
Endoscopic ultrasound-guided drainage (EUSD) is an effective treatment for postoperative pancreatic fluid collections (POPFCs); however, standards regarding stents used for EUSD have not been established. This study analyzed the outcomes of EUSD of POPFCs at our hospital and examined the safety and effectiveness of plastic stents/tubes.
Methods:
This retrospective, single-center study focused on EUSD of POPFCs performed at our hospital. We examined the rates of technical success, clinical success, adverse events, and recurrence.
Results:
Twenty-seven patients were included in this study. The initial drainage methods comprised one nasocystic plastic tube (NPT) and one double-pigtail plastic stent (DPS) for 19 (70.4%) patients, two DPS for four (14.8%) patients, one NPT for three (11.1%) patients, and one lumen-apposing metal stent for one (3.7%) patient. The technical success and clinical success rates were both 100%. Fourteen of the 19 patients with one NPT and one DPS improved, but five patients required additional interventions and improved with fistula site dilation. Although recurrence occurred in one patient, improvement was achieved with second EUSD. Early adverse events comprised one case of bleeding for which hemostasis was achieved by performing coil embolization. Late adverse events comprised three cases of DPS migration; however, no additional intervention was required.
Conclusion
The use of plastic tubes/stents is safe and effective for EUSD of POPFCs.
2.Endoscopic ultrasound-guided drainage of postoperative pancreatic fluid collections
Shigeru NISHIYAMA ; Takeshi HISA ; Aki EGO ; Shogo SAKATA ; Yui ITO ; Akiharu KUDO ; Takahiro YAMADA ; Shozo OSERA ; Hideki FUKUSHIMA ; Shunta ISHIZAKI ; Ryoga HAMURA ; Masashi TSUNEMATSU ; Kyohei ABE ; Yoshihiro SHIRAI ; Shinji ONDA
International Journal of Gastrointestinal Intervention 2025;14(1):15-19
Background:
Endoscopic ultrasound-guided drainage (EUSD) is an effective treatment for postoperative pancreatic fluid collections (POPFCs); however, standards regarding stents used for EUSD have not been established. This study analyzed the outcomes of EUSD of POPFCs at our hospital and examined the safety and effectiveness of plastic stents/tubes.
Methods:
This retrospective, single-center study focused on EUSD of POPFCs performed at our hospital. We examined the rates of technical success, clinical success, adverse events, and recurrence.
Results:
Twenty-seven patients were included in this study. The initial drainage methods comprised one nasocystic plastic tube (NPT) and one double-pigtail plastic stent (DPS) for 19 (70.4%) patients, two DPS for four (14.8%) patients, one NPT for three (11.1%) patients, and one lumen-apposing metal stent for one (3.7%) patient. The technical success and clinical success rates were both 100%. Fourteen of the 19 patients with one NPT and one DPS improved, but five patients required additional interventions and improved with fistula site dilation. Although recurrence occurred in one patient, improvement was achieved with second EUSD. Early adverse events comprised one case of bleeding for which hemostasis was achieved by performing coil embolization. Late adverse events comprised three cases of DPS migration; however, no additional intervention was required.
Conclusion
The use of plastic tubes/stents is safe and effective for EUSD of POPFCs.
3.Endoscopic ultrasound-guided drainage of postoperative pancreatic fluid collections
Shigeru NISHIYAMA ; Takeshi HISA ; Aki EGO ; Shogo SAKATA ; Yui ITO ; Akiharu KUDO ; Takahiro YAMADA ; Shozo OSERA ; Hideki FUKUSHIMA ; Shunta ISHIZAKI ; Ryoga HAMURA ; Masashi TSUNEMATSU ; Kyohei ABE ; Yoshihiro SHIRAI ; Shinji ONDA
International Journal of Gastrointestinal Intervention 2025;14(1):15-19
Background:
Endoscopic ultrasound-guided drainage (EUSD) is an effective treatment for postoperative pancreatic fluid collections (POPFCs); however, standards regarding stents used for EUSD have not been established. This study analyzed the outcomes of EUSD of POPFCs at our hospital and examined the safety and effectiveness of plastic stents/tubes.
Methods:
This retrospective, single-center study focused on EUSD of POPFCs performed at our hospital. We examined the rates of technical success, clinical success, adverse events, and recurrence.
Results:
Twenty-seven patients were included in this study. The initial drainage methods comprised one nasocystic plastic tube (NPT) and one double-pigtail plastic stent (DPS) for 19 (70.4%) patients, two DPS for four (14.8%) patients, one NPT for three (11.1%) patients, and one lumen-apposing metal stent for one (3.7%) patient. The technical success and clinical success rates were both 100%. Fourteen of the 19 patients with one NPT and one DPS improved, but five patients required additional interventions and improved with fistula site dilation. Although recurrence occurred in one patient, improvement was achieved with second EUSD. Early adverse events comprised one case of bleeding for which hemostasis was achieved by performing coil embolization. Late adverse events comprised three cases of DPS migration; however, no additional intervention was required.
Conclusion
The use of plastic tubes/stents is safe and effective for EUSD of POPFCs.
4.Supply, Demand and Distribution of Physicians in Japan
Hiroyasu NISHIYAMA ; Yoshihiro MIZUMA ; Nobuo HANDA ; Ryong-moon SHIN
Keimyung Medical Journal 2024;43(2):89-99
The number of physicians in Japan has been and will continue to be lower than that in other the Organization for Economic Co-operative and Development (OECD) countries. The admission capacity of medical schools, which has the greatest impact on the number of physicians, has been determined through discussions among the Ministry of Health, Labour and Welfare, medical associations, medical organizations, universities, and academics, depending on the medical supply-demand status on that era. In recent years, the maldistribution of medical specialties and regions has become an issue. For the involving this issue, Japanese government takes from multiple perspectives to address this problem, including “regional quotas” in admission quotas for university medical school and, setting a ceiling on the number of residency positions available in each prefecture as well as on recruitment capacity in the specialist physician system. The implementation of “work style reform” for physicians, focuses on shortening physicians’ working hours and has raised concerns regarding a shortage and regional maldistribution of physicians. The government’s policy is based on a key concern: rising healthcare costs could seriously threaten the country’s financial health. Therefore, the government has limited the increase in the number of physicians. Conversely, this year, the government has begun to argue that a regulatory approach is necessary to address the uneven distribution of physicians. Our proposition is to achieve a number of physicians comparable to that of other OECD countries and to create an environment that enables physicians to voluntarily address their regional and departmental maldistribution.
5.Supply, Demand and Distribution of Physicians in Japan
Hiroyasu NISHIYAMA ; Yoshihiro MIZUMA ; Nobuo HANDA ; Ryong-moon SHIN
Keimyung Medical Journal 2024;43(2):89-99
The number of physicians in Japan has been and will continue to be lower than that in other the Organization for Economic Co-operative and Development (OECD) countries. The admission capacity of medical schools, which has the greatest impact on the number of physicians, has been determined through discussions among the Ministry of Health, Labour and Welfare, medical associations, medical organizations, universities, and academics, depending on the medical supply-demand status on that era. In recent years, the maldistribution of medical specialties and regions has become an issue. For the involving this issue, Japanese government takes from multiple perspectives to address this problem, including “regional quotas” in admission quotas for university medical school and, setting a ceiling on the number of residency positions available in each prefecture as well as on recruitment capacity in the specialist physician system. The implementation of “work style reform” for physicians, focuses on shortening physicians’ working hours and has raised concerns regarding a shortage and regional maldistribution of physicians. The government’s policy is based on a key concern: rising healthcare costs could seriously threaten the country’s financial health. Therefore, the government has limited the increase in the number of physicians. Conversely, this year, the government has begun to argue that a regulatory approach is necessary to address the uneven distribution of physicians. Our proposition is to achieve a number of physicians comparable to that of other OECD countries and to create an environment that enables physicians to voluntarily address their regional and departmental maldistribution.
6.Supply, Demand and Distribution of Physicians in Japan
Hiroyasu NISHIYAMA ; Yoshihiro MIZUMA ; Nobuo HANDA ; Ryong-moon SHIN
Keimyung Medical Journal 2024;43(2):89-99
The number of physicians in Japan has been and will continue to be lower than that in other the Organization for Economic Co-operative and Development (OECD) countries. The admission capacity of medical schools, which has the greatest impact on the number of physicians, has been determined through discussions among the Ministry of Health, Labour and Welfare, medical associations, medical organizations, universities, and academics, depending on the medical supply-demand status on that era. In recent years, the maldistribution of medical specialties and regions has become an issue. For the involving this issue, Japanese government takes from multiple perspectives to address this problem, including “regional quotas” in admission quotas for university medical school and, setting a ceiling on the number of residency positions available in each prefecture as well as on recruitment capacity in the specialist physician system. The implementation of “work style reform” for physicians, focuses on shortening physicians’ working hours and has raised concerns regarding a shortage and regional maldistribution of physicians. The government’s policy is based on a key concern: rising healthcare costs could seriously threaten the country’s financial health. Therefore, the government has limited the increase in the number of physicians. Conversely, this year, the government has begun to argue that a regulatory approach is necessary to address the uneven distribution of physicians. Our proposition is to achieve a number of physicians comparable to that of other OECD countries and to create an environment that enables physicians to voluntarily address their regional and departmental maldistribution.
7.Supply, Demand and Distribution of Physicians in Japan
Hiroyasu NISHIYAMA ; Yoshihiro MIZUMA ; Nobuo HANDA ; Ryong-moon SHIN
Keimyung Medical Journal 2024;43(2):89-99
The number of physicians in Japan has been and will continue to be lower than that in other the Organization for Economic Co-operative and Development (OECD) countries. The admission capacity of medical schools, which has the greatest impact on the number of physicians, has been determined through discussions among the Ministry of Health, Labour and Welfare, medical associations, medical organizations, universities, and academics, depending on the medical supply-demand status on that era. In recent years, the maldistribution of medical specialties and regions has become an issue. For the involving this issue, Japanese government takes from multiple perspectives to address this problem, including “regional quotas” in admission quotas for university medical school and, setting a ceiling on the number of residency positions available in each prefecture as well as on recruitment capacity in the specialist physician system. The implementation of “work style reform” for physicians, focuses on shortening physicians’ working hours and has raised concerns regarding a shortage and regional maldistribution of physicians. The government’s policy is based on a key concern: rising healthcare costs could seriously threaten the country’s financial health. Therefore, the government has limited the increase in the number of physicians. Conversely, this year, the government has begun to argue that a regulatory approach is necessary to address the uneven distribution of physicians. Our proposition is to achieve a number of physicians comparable to that of other OECD countries and to create an environment that enables physicians to voluntarily address their regional and departmental maldistribution.
10.99mTc-HSA-DTPA Scintigraphy of Protein-Losing Gastroenteropathy Associated with Mixed Connective Tissue Disease Before and After Immunosuppressive Therapy
Katsuya MITAMURA ; Takashi NORIKANE ; Yuka YAMAMOTO ; Kengo FUJIMOTO ; Yasukage TAKAMI ; Mikiya KATO ; Tomohiro KAMEDA ; Hiroaki DOBASHI ; Yoshihiro NISHIYAMA
Nuclear Medicine and Molecular Imaging 2021;55(1):46-47
We present a female in her sixties with mixed connective tissue disease who underwent 99mTc-human serum albumin diethylenetriaminepentaacetic acid ( 99mTc-HSA-DTPA) scintigraphy to clarify the cause of generalized edema. Scintigraphy findings directed the diagnosis to protein-losing gastroenteropathy. Various disorders are known to be associated with proteinlosing gastroenteropathy; however, mixed connective tissue disease is a rare cause. 99mTc-HSA-DTPA scintigraphy is helpful in the diagnosis and following the response to therapy of protein-losing gastroenteropathy.

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