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Akira Iwata,Kuniyoshi Abumi,Masahiko Takahata,Hideki Sudo,Katsuhisa Yamada,Tsutomu Endo,Norimasa Iwasaki 대한척추외과학회 2019 Asian Spine Journal Vol.13 No.2
Study Design: Retrospective case-control study, level 4. Purpose: To clarify the risk factors for late subaxial lesion after occipitocervical (O-C) reconstruction. We examined cases requiring fusion-segment-extended (FE) reconstruction in addition to/after O-C reconstruction. Overview of Literature: Patients with rheumatoid arthritis (RA) frequently require O-C reconstruction surgery for cranio-cervical lesions. Acceptable outcomes are achieved via indirect decompression using cervical pedicle screws and occipital plate–rod systems. However, late subaxial lesions may develop occasionally following O-C reconstruction. Methods: O-C reconstruction using cervical pedicle screws and occipital plate–rod systems was performed between 1994 and 2007 in 113 patients with RA. Occipito-atlanto-axial (O-C2) reconstruction was performed for 89 patients, and occipito-subaxial cervical (O-under C2) reconstruction was performed for 24 patients. We reviewed the cases of patients requiring FE reconstruction (fusion extended group, FEG) and 26 consecutive patients who did not require FE reconstruction after a follow-up of >5 years (non-fusion extended group, NEG) as controls. Results: FE reconstructions were performed for nine patients at an average of 45 months (range, 24–180 months) after O-C reconstruction. Of the 89 patients, three (3%) underwent FE reconstruction in cases of O-C2 reconstruction. Of the 24 patients, five (21%) underwent FE reconstruction in cases of O-under C2 reconstruction (p =0.003, Fisher exact test). Age, sex, RA type, and neurological impairment stage were not significantly different between FEG and NEG. O-under C2 reconstruction, larger correction angle (4° per number of unfixed segment), and O-C7 angle change after O-C reconstruction were the risk factors for late subaxial lesions on radiographic assessment. Conclusions: Overcorrection of angle at fusion segments requiring O-C7 angle change was a risk factor for late subaxial lesion in patients with RA with fragile bones and joints. Correction should be limited, considering the residual mobility of the cervical unfixed segments.
Shiho Kuji,Akira Endo,Manabu Kubota,Atsushi Uekawa,Fumi Kawakami,Yoshiki Mikami,Junki Koike,Nao Suzuki 대한부인종양학회 2023 Journal of Gynecologic Oncology Vol.34 No.1
Objective: Previously, we reported that insulinoma-associated protein 1 (INSM1) immunohistochemistry (IHC) showed high sensitivity for neuroendocrine carcinoma of the uterine cervix and was an effective method for histopathological diagnosis, but that its specificity remained to be verified. Therefore, the aim was to verify the specificity of INSM1 IHC for a large number of non-neuroendocrine neoplasia (NEN) of the cervix. Methods: RNA sequences were performed for cell lines of small cell carcinoma (TCYIK), squamous cell carcinoma (SiHa), and adenocarcinoma (HeLa). A total of 104 cases of formalin-fixed and paraffin-embedded specimens, 16 cases of cervical NEN and 88 cases of cervical non-NEN, were evaluated immunohistochemically for conventional neuroendocrine markers and INSM1. All processes without antigen retrieval were performed by an automated IHC system. Results: The transcripts per million levels of INSM1 in RNA sequences were 1505 in TCYIK, 0 in SiHa, and HeLa. INSM1 immunoreactivity was shown only in the TCYIK. Immunohistochemical results showed that 15 cases of cervical NEN showed positive for INSM1; the positivity score of the tumor cell population and the stain strength for INSM1 were high. Two of the 88 cases of cervical non-NENs were positive for INSM1 in one case each of typical adenocarcinoma and squamous cell carcinoma. The sensitivity of INSM1 for cervical NEN was 94%; specificity, 98%; the positive predictive value, 88%; and the negative predictive value, 99%. Conclusion: INSM1 is an adjunctive diagnostic method with excellent specificity and sensitivity for diagnosing cervical NEN. Higher specificity can be obtained if morphological evaluation is also performed.
Effects of Soil Scraping on the Reclamation of Tsunami-Damaged Paddy Soil
Dong-Jin Kang,Akira Endo,Young-Jin Seo 한국작물학회 2013 Journal of crop science and biotechnology Vol.16 No.3
We investigated the possibility of tsunami-damaged paddy soil remediation in Japan using a scraping method. We collected undisturbed soil blocks to maintain the soil structure from paddy damaged by salt from the tsunami. Scraping treatments to remove the top 2 cm of the soil surface were conducted once, twice, and thrice after drying naturally in a greenhouse environment, as well as a noscraping control. Electrical conductivity (EC) of the soil dramatically decreased to < 1.36 dS m–1 in the residual soils after scraping. The EC values of the residual soils were significantly lower after being scraped twice or thrice compared with a single scraping. Similarly, the mean NaCl removal rates were significantly higher with two (91%) or three scrapings (97.2%) compared with a single scraping (73.3%). The growth of rice plants was almost normal in the residual soils based on a visual score (approximately 3 on average)using a standard evaluation system at 4 weeks after transplantation. There were no significant differences in the grain yields from the residual soils with different scraping frequencies, and the EC values of all the residual soils were < 1.36 dS m–1. This study clearly indicates that there were reductions in the EC and good plant growth performance in the residual soils after scraping, and there was also a high rate of NaCl removal. Therefore, scraping may be a useful method for the remediation of salt-damaged paddy soils when irrigation or culvert systems are affected severely by tsunamis and earthquakes We investigated the possibility of tsunami-damaged paddy soil remediation in Japan using a scraping method. We collected undisturbed soil blocks to maintain the soil structure from paddy damaged by salt from the tsunami. Scraping treatments to remove the top 2 cm of the soil surface were conducted once, twice, and thrice after drying naturally in a greenhouse environment, as well as a noscraping control. Electrical conductivity (EC) of the soil dramatically decreased to < 1.36 dS m–1 in the residual soils after scraping. The EC values of the residual soils were significantly lower after being scraped twice or thrice compared with a single scraping. Similarly, the mean NaCl removal rates were significantly higher with two (91%) or three scrapings (97.2%) compared with a single scraping (73.3%). The growth of rice plants was almost normal in the residual soils based on a visual score (approximately 3 on average)using a standard evaluation system at 4 weeks after transplantation. There were no significant differences in the grain yields from the residual soils with different scraping frequencies, and the EC values of all the residual soils were < 1.36 dS m–1. This study clearly indicates that there were reductions in the EC and good plant growth performance in the residual soils after scraping, and there was also a high rate of NaCl removal. Therefore, scraping may be a useful method for the remediation of salt-damaged paddy soils when irrigation or culvert systems are affected severely by tsunamis and earthquakes
Is glue embolization safe and effective for gastrointestinal bleeding?
Shinsaku Yata,Yasufumi Ohuchi,Akira Adachi,Masayuki Endo,Shohei Takasugi,Kazumichi Tsukam,Kensuke Matsumoto,Mika Kodani,Jun Makishima,Shinya Fujii 소화기인터벤션의학회 2018 Gastrointestinal Intervention Vol.7 No.3
Transcatheter arterial embolization using N-butyl-2-cyanoacrylate (NBCA) for gastrointestinal arterial bleeding enables higher cessation rate and lower recurrent bleeding rate compared with conventional embolic materials including gelatin sponge, metallic coil, and polyvinyl alcohol (PVA) particle. Glue embolization is particularly effective in patients with coagulopathy. Even in the lower gastrointestinal tract, ischemic bowel complications by glue embolization are comparable to other agents. Glue embolization is also effective for arterial esophageal bleeding without any serious ischemic complications although the anatomy of the esophageal artery is complex and varied. For bleeding after abdominal surgery such as pancreaticoduodenectomy or hepatic lobectomy, interventional radiologists should be careful with indicating glue embolization because the presence of fewer collateral vessels can easily result in serious ischemic complications. Modified glue such as Glubran 2 (NBCA associated with methacryloxyfulfolane) can reduce the risk of ischemic complication due to its less thermal reaction, but the outcomes seem unsatisfactory.