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1. Asian Neonatal Network Collaboration (AsianNeo): a study protocol for international collaborative comparisons of health services and outcomes to improve quality of care for sick newborn infants in Asia – survey, cohort and quality improvement studies

Author

Yumi Kono, Hidehiko Nakanishi, Satoshi Kusuda, Hirokazu Arai, Maki Sato, Hiroaki Imamura, Takahide Yanagi, Moriharu Sugimoto, Hiroshi Matsumoto, Takashi Nakano, Satoshi Watanabe, Tomoaki Ioroi, Shigeharu Hosono, Makoto Nabetani, Osuke Iwata, Naho Morisaki, Bin Huey Quek, Kaoru Okazaki, Hideaki Harada, Masaki Kobayashi, Yuh-Jyh Lin, Yayoi Miyazono, Isamu Hokuto, Hiroshi Komatsu, Hiroshi Suzuki, Chayatat Ruangkit, Yuko Maruyama, Daisuke Nishi, Shanika Kosarat, Kapila Jayaratne, Tetsuya Isayama, Toshinori Nakashima, Tsutomu Ogata, Takashi Yamagami, Zubair Amin, Shinya Hirano, Seiji Yoshimoto, Chih-Cheng Chen, Yuji Ito, Rinawati Rohsiswatmo, Pertin Sianturi, Rocky Wilar, Dwi Hidayah, Risa Etika, Afifa Ramadanti, Pudji Andayani, Ema Alasiry, Ellen Sianipar, Yosuke Shima, Takashi Tachibana, Takahiro Okutani, Soon Min Lee, Hitoshi Yoda, Ichiro Morioka, Woei Bing Poon, Asao Yara, Akira Nishimura, Masato Ito, Tadayuki Kumagai, Hiroshi Yoshida, Takashi Okuno, Mei-Jy Jeng, Ee-Kyung Kim, Buranee Swatesutipun, Kei Inomata, Yuichi Kato, Kiyoaki Sumi, Atsushi Uchiyama, Narongsak Nakwan, Juyoung Lee, Keiji Goishi, Hiroshi Yamamoto, Hsiu-Ling Chen, Masahiro Kobayashi, Kazumasa Takahashi, Masayuki Ochiai, Fumihiko Ishida, Seok Chiong Chee, Siew Hong Neoh, Ee Lee Ang, Ann Cheng Wong, Masaru Shirai, Toru Ishioka, Toshihiko Mori, Toru Huchimukai, Kyone Ko, Akira Shimazaki, Tatsuya Yoda, Azusa Kobayashi, Yasushi Uchida, Mitsuhiro Ito, Kuniko Ieda, Toshiyuki Ono, Masashi Hayashi, Kanemasa Maki, Kozue Shiomi, Koji Nozaki, Taho Kim, Yasuyuki Tokunaga, Akihiro Takatera, Hiroshi Sumida, Yae Michinomae, Yoshio Kusumoto, Takeshi Morisawa, Tamaki Ohashi, Takahiko Saijo, Kosuke Koyano, Mikio Aoki, Koichi Iida, Mitsushi Goshi, Miho Sato, Hung-Yang Chang, Hironobu Tokumasu, Yoichi Kondo, Arif Budiman, Arief Budiman, Ken Nagaya, Fumihiko Namba, Yun Sil Chang, Masaru Yamakawa, Atsushi Nakao, Masaki Shimizu, Ming-Chih Lin, Jui-Hsing Chang, Shu-Chi Mu, Hung-Chih Lin, Fuyu Miyake, Rizalya Dewi, Yuri Ozawa, Seiichi Tomotaki, Ma Lourdes S Imperial, Belen Amparo E Velasco, Su Jin Cho, YoungAh Youn, Saman Kumara, Hsiang Yu Lin, Pracha Nuntnarumit, Sopapan Ngerncham, Chatchay Prempunpong, Pathaporn Prempraphan, Sarayut Supapannachart, Isra Firmansyah, Eny Yantri, Henri Azis, Ied Imelda, Mustarim ­, Benny Sana Putra, Leni Ervina Jumnalis, Andhika Tiurmaida Hutapea, Nadia Dwi Insani, Agnes Yunie Purwita Sari, Naomi Esthernita Dewanto, Thomas Harry Adoe, Tetty Yuniarti, Adhie Nur Radityo S, Tunjung Wibowo, Kartika Darma Handayani, Dina Djojo Husodo, Brigitta Ida Resita Vebrianti Corebima, Retno Wulandari, Made Sukmawati, I Ketut Adi Wirawan, Made Yuliari, James Thimoty, Sandra Bulan, Takashi Nasu, Yukiteru Tachibana, Ayumu Noro, Toshiya Saito, Yosuke Kaneshi, Nobuko Shiono, Nobuhiro Takahashi, Yusuke Ohkado, Tatsuro Satomi, Mika Nakajima, Eiki Nakamura, Tomofumi Ikeda, Genichiro Sotodate, Mari Ishii, Takahide Hosokawa, Rikio Suzuki, Masatoshi Sanjo, Michiya Kudo, Takushi Hanita, Satoshi Niwa, Masanari Kawamura, Yousuke Sudo, Tsutomu Ishii, Takashi Imamura, Yoshiya Yukitake, Goro Asada, Yasuaki Kobayashi, Yasushi Oki, Kenji Ichinomiya, Toru Fujiu, Hideaki Fukushima, Tetsuya Kunikata, Chika Morioka, Motoichiro Sakurai, Naoto Nishizaki, Satoshi Toishi, Harumi Otsuka, Masahiko Sato, Kenichiro Hirakawa, Kenichiro Hosoi, Hiromichi Shoji, Atsuo Miyazawa, Yuko Nagaoki, Naoki Ito, Ken Masunaga, Reiko Kushima, Sakae Kumasaka, Manabu Sugie, Daisuke Haruhara, Satsuki Kakiuchi, Riki Nishimura, Daisuke Ogata, Ayako Fukuyama, Kuriko Nakamura, Kanji Ogo, Masahiko Murase, Katsuaki Toyoshima, Maha Suzuki, Yoshio Shima, Atsushi Nemoto, Yukihide Miyosawa, Takehiko Hiroma, Gen Kuratsuji, Yoshihisa Nagayama, Tohei Usuda, Rei Kobayashi, Takeshi Hutani, Taketoshi Yoshida, Kazuhide Ohta, Shuya Nagaoki, Yasuhisa Ueno, Toru Ando, Ritsuyo Taguchi, Takeshi Arakawa, Shinji Usui, Tokuso Murabayashi, Shigeru Oki, Reiji Nakano, Taizo Ueno, Masami Shirai, Akira Oishi, Hikaru Yamamoto, Hiroshi Takeshita, Koji Takemoto, Masashi Miyata, Makoto Ohshiro, Masanori Kowaki, Osamu Shinohara, Yasunori Koyama, Takahiro Muramatsu, Akinobu Taniguchi, Naoki Kamata, Hiroshi Uchizono, Kenji Nakamura, Masahito Yamamoto, Jitsuko Ohira, Machiko Sawada, Ryosuke Araki, Daisuke Kinoshita, Ryuji Hasegawa, Shinsuke Adachi, Toru Yamakawa, Masahiko Kai, Hirotaka Minami, Kenji Mine, Reiko Negi, Satoru Ogawa, Ryoko Yoshinare, Atsushi Ogihara, Satoshi Onishi, Hiroyuki Ichiba, Misao Yoshii, Hitomi Okabe, Hiroshi Mizumoto, Masaaki Ueda, Kazumichi Fujioka, Takeshi Utsunomiya, Toshiya Nishikubo, Ken Kumagaya, Akiko Tamura, Masumi Miura, Yuki Hasegawa, Rie Kanai, Kei Takemoto, Koichi Tsukamoto, Misao Kageyama, Rie Fukuhara, Yutaka Nishimura, Seiichi Hayakawa, Yasuhiko Sera, Masahiro Tahara, Shinosuke Fukunaga, Keiko Hasegawa, Hiroshi Tateishi, Tomomasa Terada, Toru Kuboi, Osamu Matsuda, Shinosuke Akiyoshi, Takahiro Motoki, Yusei Nakata, Toshiharu Hikino, Shutaro Suga, Mitsuaki Unno, Hiroshi Kanda, Yasushi Takahata, Hiroyasu Kawano, Takayuki Kokubo, Toshimitsu Takayanagi, Muneichiro Sumi, Fumiko Kinoshita, Masanori Iwai, Naoki Fukushima, Yuki Kodama, Shuichi Yanagibe, Takuya Tokuhisa, Yoriko Kisato, Tatsuo Oshiro, Kazuhiko Nakasone, ChangWon Choi, Young-Ah Youn, Jae Won Shim, Jang Hoon Lee, Ga Won Jeon, Byong Sop Lee, Jin A Lee, Jae Woo Lim, Zuraidah Abdul Latif, Zainah Shaikh Hedra, Baizura Jamaluddin, Hasri Hafidz, Zainab Ishak, Geok Hoon Ngian, Chiong Hung Kiew, Mehala Devi Baskaran, Maslina Mohamad, Chee Sing Wong, Rozitah Razman, Maneet Kaur, Choo Hau Lim, Maizatul Akmar, Sheila Gopal Krishnan, Chae Hee Chieng, Chong Meng Choo, Eric Boon- Kuang Ang, AngShiau Chuen Diong, Angeline Seng- Lian Wan, Sharifah Huda Engku Alwi, Kwee Ching See, Rohani Abdul Jalil, Agnes Suganthi, Mei Ling Lee, Pauline Poh-Ling Choo, Lee Ser Chia, Azanna Ahmad Kamar, Anand Mohan A/L Mohana Lal, Agnes Huei- Hwen Foo, Abdul Nasir Mohamed Abdul Kadher, Ma. Lourdes Imperial, Belen Velasco, Ma. Esterlita V. Uy, Daisy Evangeline Garcia, Jacinto Blas Mantaring, Nethmini Thenuwara, Ming-Chou Chiang, Lan-Wan Wang, Xiao-Ping Wang, Yi-Li Hung, Yung Chieh Lin, Pen-Hua Su, Yung-Ning Yang, Po-Nein Tsao, Liang-Ti Huang, Yi-Yu Su, Shau-Ru Ho, Yan-Yan Ng, Kai-Ti Tseng, Yi-Yin Chen, Tsung-Yu Wu, Wei-Tse Chiu, Li-Jung Fang, Kao-Hsian Hsieh, Anavat Bupphachareonsuk, Anchalee Limrungsikul, Anita Luvira, Anucha Thatrimontrichai, Buranee Yangthara, Cholticha Laohajeeraphan, Hathitip Chaiprapa, Junya Jirapradittha, Kanmalee Jenjarat, Kannikar Booranavanich, Namtip Intub, Patcharin Thanomsingh, Pirarat Kotcharit, Piyawan Phummaphuti, Pornpimon Janyoungsak, Prapaiporn Chongkongkiat, Rapeephun Hansuebsai, Roongrawee Torbunsupachai, Santi Punnahitanan, Sommon Jindakul, Sopida Tanthawat, Sudarat Sirichaipornsak, Sudatip Kositamongkol, Supamas Supabanpot, Suparat Tipprasert, Tanin Pirunnet, Thanatda Siriporn, Usakorn Taesiri, Vasita Jirasakuldech, and Eleanor DR Cuarte

Subjects
Medicine
Abstract

Introduction Reducing neonatal deaths in premature infants in low- and middle-income countries is key to reducing global neonatal mortality. International neonatal networks, along with patient registries of premature infants, have contributed to improving the quality of neonatal care; however, the involvement of low-to-middle-income countries was limited. This project aims to form an international collaboration among neonatal networks in Asia (AsianNeo), including low-, middle- and high-income countries (or regions). Specifically, it aims to determine outcomes in sick newborn infants, especially very low birth weight (VLBW) infants or very preterm infants, with a view to improving the quality of care for such infants.Methods and analysis Currently, AsianNeo comprises nine neonatal networks from Indonesia, Japan, Malaysia, Philippines, Singapore, South Korea, Sri Lanka, Taiwan and Thailand. AsianNeo will undertake the following four studies: (1) institutional questionnaire surveys investigating neonatal intensive care unit resources and the clinical management of sick newborn infants, with a focus on VLBW infants (nine countries/regions); (2) a retrospective cohort study to describe and compare the outcomes of VLBW infants among Asian countries and regions (four countries/regions); (3) a prospective cohort study to develop the AsianNeo registry of VLBW infants (six countries/regions); and (4) implementation and evaluation of educational and quality improvement projects in AsianNeo countries and regions (nine countries/regions).Ethics and dissemination The study protocol was approved by the Research Ethics Board of the National Center for Child Health and Development, Tokyo, Japan (reference number 2020–244, 2022–156). The study findings will be disseminated through educational programmes, quality improvement activities, conference presentations and medical journal publications.

Published
2024
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3. Corrosion Behavior of Sialon Ceramics in Supercritical Water

Author

Yasunori Koyama, Tetsuo Yoshio, Masahiro Nagae, Kohei Oda, and Seita Yasutake

Subjects
Sialon, Materials science, Metallurgy, Intergranular corrosion, Supercritical fluid, Corrosion, Flexural strength, visual_art, Materials Chemistry, Ceramics and Composites, visual_art.visual_art_medium, Pitting corrosion, Grain boundary, Ceramic
Abstract

The corrosion behavior of sialon ceramics was investigated in supercritical water at 450°C under 45 MPa for 2–50 h. α-sialon exhibited better corrosion resistance than β-sialon and α/β-sialon. Pitting corrosion with the formation of corrosion products was observed in the case of β-sialon and α/β-sialon. By contrast, the corrosion behavior of α-sialon was characterized by uniform corrosion with the formation of corrosion products. The degree of strength deterioration was strongly dependent on the corrosion morphology. The bending strength of α-sialon after corrosion for 30 h was about 90% of its initial strength, while the strength of β-sialon decreased to 65% of its original strength.

Published
2006
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4. Phase I/II Study Of Oral S-1 Plus Paclitaxel In Elderly Patients With Advanced Non-Small Cell Lung Cancer

Author

Taichirou Arimoto, Yusuke Chihara, Yoshinobu Iwasaki, Yoshizumi Takemura, Mikio Ueda, Tatsuya Imabayashi, Koji Date, and Yasunori Koyama

Subjects
Oncology, medicine.medical_specialty, chemistry.chemical_compound, Phase i ii, Paclitaxel, chemistry, business.industry, Internal medicine, Medicine, Non small cell, business, Lung cancer, medicine.disease
Published
2012
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6. [A case of microscopic polyangiitis with silicosis]

Author

Masaki, Nakanishi, Koji, Date, Yasunori, Koyama, Mikio, Ueda, Taichiro, Arimoto, and Yoshinobu, Iwasaki

Subjects
Male, Pulse Therapy, Drug, Silicosis, Humans, Microscopic Polyangiitis, Steroids, Immunosuppressive Agents, Aged
Abstract

A 76-year-old man was admitted to our hospital because of increasing size of lung nodules, while he was under observation for silicosis at another hospital. As the result of bronchoscopic biopsy, it was confirmed that they were silicotic nodules. However, he was hospitalized again about one month later due to left spontaneous pneumothorax. The pneumothorax improved immediately by persistent drainage of the thoracic cavity, but he developed a fever on day 9, and ground-glass opacities in both lungs also became exacerbated in spite of our administration of antibiotics. In addition, the level of MPO-ANCA increased markedly and multiple 3-10mm sized purpurae was seen on the right thigh on day 29. Skin biopsy specimens revealed infiltration of histiocytes and lymphocytes around medium-sized vessels in lower dermis. We diagnosed microscopic polyangiitis, then treated with steroid and immunosuppressive therapy. Fever and radiological findings improved significantly from the day after initiation of steroid administration. The patient was discharged on day 92 because of the improvement of his respiratory condition. We report a case of microscopic polyangiitis with silicosis, which markedly improved by steroid and immunosuppressive therapy.

Published
2011

7. [Two cases of complex sleep apnea syndrome]

Author

Takahiro, Yamada, Taichiro, Arimoto, Yasunori, Koyama, Asami, Masui, Nobuyo, Tamiya, Shigekuni, Hosogi, Atushi, Hiramatu, Masaki, Nakanishi, Yoshihito, Kohno, Mikio, Ueda, Yoshinobu, Iwasaki, and Yoshinori, Marunaka

Subjects
Male, Positive-Pressure Respiration, Sleep Apnea Syndromes, Treatment Outcome, Polysomnography, Humans, Middle Aged
Abstract

Continuous positive airway pressure (CPAP) therapy of obstructive sleep apnea syndrome (OSAS) is widely accepted. Recently it is reported that central type apnea increases in some patients with OSAS with the application of CPAP, and this type of sleep-disordered breathing is called complex sleep apnea syndrome (comp. SAS). However, until now its concept, mechanism and therapy have not been fully established. We treated 2 cases of comp. SAS with CPAP therapy. When we performed a polysomnography (PSG) examination in case 1 one year later, the symptoms had diminished and the central apnea had decreased, indicating the effectiveness CPAP therapy in case 1. In case 2, the symptoms had not diminished one year later. We therefore performed Adaptive Servo-Ventilation (ASV) therapy, resulting in improvement of symptoms and decrease of the central apnea. CPAP is not always effective in comp. SAS, and ASV can be suitable in such cases.

Published
2009

8. Phase II trial of weekly gemcitabine and split-dose cisplatin for advanced non-small-cell lung cancer

Author

Masaki Nakanishi, Nobuyo Tamiya, Yasunori Koyama, Yoshinori Marunaka, Atsushi Hiramatsu, Shigekuni Hosogi, Yoshihito Kohno, Yoshinobu Iwasaki, Mikio Ueda, and Taichiro Arimoto

Subjects
Oncology, Adult, Male, Cancer Research, medicine.medical_specialty, Lung Neoplasms, Neutropenia, Phases of clinical research, Gastroenterology, Deoxycytidine, Internal medicine, Carcinoma, Non-Small-Cell Lung, Antineoplastic Combined Chemotherapy Protocols, Medicine, Humans, Radiology, Nuclear Medicine and imaging, Mortality, Lung cancer, Survival rate, Aged, Neoplasm Staging, Cisplatin, Leukopenia, Dose-Response Relationship, Drug, business.industry, General Medicine, Middle Aged, medicine.disease, Combined Modality Therapy, Gemcitabine, Survival Rate, Regimen, Female, medicine.symptom, business, medicine.drug
Abstract

Objective: Cisplatin is widely used for the treatment of non-small-cell lung cancer. However, it can cause unpleasant side effects and also requires prolonged hydration. We conducted a Phase II study of weekly gemcitabine and split-dose cisplatin in patients with advanced nonsmall-cell lung cancer (NSCLC) in order to reduce toxicity and shorten the time taken by administration. Our aims were to determine the response rate, toxicity and survival time with this regimen in patients with Stage IIIB/IV disease. Methods: Previously untreated patients with Stage IIIB/IV NSCLC were given gemcitabine (1000 mg/m 2 ) and split-dose cisplatin (40 mg/m 2 ) on days 1 and 8 at 3-week intervals for four cycles. Gemcitabine was administered over the course of 30 min, and cisplatin was over the course of 60 min on the same days on an outpatient basis. Results: Forty-five patients were enrolled, and all of them were assessable for response and toxicity. None had a complete response and 17 had a partial response (37.8%), for an overall response rate of 37.8% (95% confidence interval, 25.1‐52.4%). The survival rate was 56.5% at 1 year and 38.9% at 2 years, with a median survival time of 15.7 months. Leukopenia, neutropenia, anemia and thrombocytopenia were the most common toxic reactions, with Grade 3 reactions occurring at rates of 35%, 51%, 31% and 13%, respectively. Conclusions: Weekly gemcitabine and split-dose cisplatin is active and well tolerated in patients with Stage IIIB/IV NSCLC, administered on an outpatient basis without requiring prolonged hydration or hospitalization.

Published
2009

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