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468 results on '"Yasumatsu, Ryuji"'

3. First-line pembrolizumab ± chemotherapy for recurrent/metastatic head and neck cancer: Japanese subgroup of KEYNOTE-048

Author

Takahashi, Shunji, Oridate, Nobuhiko, Tanaka, Kaoru, Shimizu, Yasushi, Fujimoto, Yasushi, Matsumoto, Koji, Yokota, Tomoya, Yamazaki, Tomoko, Takahashi, Masanobu, Ueda, Tsutomu, Hanai, Nobuhiro, Yamaguchi, Hironori, Hara, Hiroki, Yoshizaki, Tomokazu, Yasumatsu, Ryuji, Nakayama, Masahiro, Shiga, Kiyoto, Fujii, Takashi, Mitsugi, Kenji, Takahashi, Kenichi, Nohata, Nijiro, Gumuscu, Burak, Swaby, Ramona F., and Tahara, Makato

Published
2022
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6. Outcomes of long-term nivolumab and subsequent chemotherapy in Japanese patients with head and neck cancer: 2-year follow-up from a multicenter real-world study

Author

Yasumatsu, Ryuji, Shimizu, Yasushi, Hanai, Nobuhiro, Kariya, Shin, Yokota, Tomoya, Fujii, Takashi, Tsukahara, Kiyoaki, Ando, Mizuo, Hanyu, Kenji, Ueda, Tsutomu, Hirakawa, Hitoshi, Takahashi, Shunji, Ono, Takeharu, Sano, Daisuke, Yamauchi, Moriyasu, Watanabe, Akihito, Omori, Koichi, Yamazaki, Tomoko, Monden, Nobuya, Kudo, Naomi, Arai, Makoto, Yonekura, Syuji, Asakage, Takahiro, Nekado, Takahiro, Yamada, Takayuki, and Homma, Akihiro

Published
2022
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13. Effectiveness of nivolumab affected by prior cetuximab use and neck dissection in Japanese patients with recurrent or metastatic head and neck cancer: results from a retrospective observational study in a real-world setting

Author

Kariya, Shin, Shimizu, Yasushi, Hanai, Nobuhiro, Yasumatsu, Ryuji, Yokota, Tomoya, Fujii, Takashi, Tsukahara, Kiyoaki, Yoshida, Masafumi, Hanyu, Kenji, Ueda, Tsutomu, Hirakawa, Hitoshi, Takahashi, Shunji, Ono, Takeharu, Sano, Daisuke, Yamauchi, Moriyasu, Watanabe, Akihito, Omori, Koichi, Yamazaki, Tomoko, Monden, Nobuya, Kudo, Naomi, Arai, Makoto, Yonekura, Shuji, Asakage, Takahiro, Fujiwara, Akinori, Yamada, Takayuki, and Homma, Akihiro

Published
2021
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16. Effectiveness and safety of nivolumab in patients with head and neck cancer in Japanese real-world clinical practice: a multicenter retrospective clinical study

Author

Hanai, Nobuhiro, Shimizu, Yasushi, Kariya, Shin, Yasumatsu, Ryuji, Yokota, Tomoya, Fujii, Takashi, Tsukahara, Kiyoaki, Yoshida, Masafumi, Hanyu, Kenji, Ueda, Tsutomu, Hirakawa, Hitoshi, Takahashi, Shunji, Ono, Takeharu, Sano, Daisuke, Yamauchi, Moriyasu, Watanabe, Akihito, Omori, Koichi, Yamazaki, Tomoko, Monden, Nobuya, Kudo, Naomi, Arai, Makoto, Sakurai, Daiju, Asakage, Takahiro, Doi, Issei, Yamada, Takayuki, and Homma, Akihiro

Published
2021
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21. The Usefulness of Total Laryngectomy in Sarcopenic Patients With Hypopharyngeal and Laryngeal Cancer

Author

KITANO, MUTSUKAZU, KOIKE, SATORU, TAMAKI, HISATOMO, IWAMOTO, SHUSUKE, MIYAMOTO, KAZUHIRO, OHIRA, NORIKO, KIMURA, TAKAYUKI, SATO, MITSUO, and YASUMATSU, RYUJI

Subjects
Research Article
Abstract

Background/Aim: Sarcopenia has an adverse effect on postoperative complications and prognoses in head and neck cancer. This study focused on hypopharyngeal and laryngeal cancer patients with sarcopenia and analyzed the body composition following treatment when the larynx was preserved and when total laryngectomy was performed to examine the usefulness of laryngectomy. Patients and Methods: We retrospectively reviewed 88 primary hypopharyngeal and laryngeal cancer patients aged 65 years or older with cT2N0M0 or higher who visited our department. Results: There were no significant differences in the 3-year overall survival rate and the 1-year local control rate between the laryngeal preservation group and laryngectomy group. The average change one year following treatment in the laryngeal preservation group, when compared to prior to treatment, was a significant decrease in the body weight (BW) of -0.035, skeletal muscle mass (SMM) of -0.030, skeletal muscle mass index (SMI) of -0.026, body mass index (BMI) of -0.034, and grip strength (GS) of -0.066. The average change one year following treatment in the laryngectomy group, compared with prior to treatment, was an increase in BW of +0.028, SMM of +0.026, SMI of +0.008, BMI of +0.032, and GS of +0.026. Although no changes in serum biochemical testing after treatment were observed in the laryngeal preservation group, albumin, transferrin, and transthyretin all exhibited significant improvement or a tendency toward improvement in the laryngectomy group. The patients with sarcopenia before treatment in the laryngeal preservation group had a significantly higher incidence of aspiration pneumonia. Conclusion: The presence or absence of sarcopenia before starting treatment is considered to be an index for selecting total laryngectomy.

Published
2023

22. Lacrimal Sac Tumors: A Single-institution Experience, Including New Insights

Author

WAKASAKI, TAKAHIRO, YASUMATSU, RYUJI, TANABE, MIKA, YOSHIKAWA, HIROSHI, JIROMARU, RINA, HASHIMOTO, KAZUKI, MATSUO, MIOKO, FUJIMURA, AKIKO, and NAKAGAWA, TAKASHI

Subjects
Pharmacology, Cancer Research, General Biochemistry, Genetics and Molecular Biology, Research Article
Abstract

Background/Aim: Lacrimal sac tumors are rare tumor types, with a long time interval from disease onset to diagnosis. We aimed to investigate the characteristics and outcomes of patients with lacrimal sac tumors. Patients and Methods: The medical records of 25 patients with lacrimal sac tumors initially treated at the Kyushu university hospital from January 1996 to July 2020 were reviewed. Results: Our analysis included 3 epithelial benign tumors (12.0%) and 22 malignant (88.0%) tumors (squamous cell carcinoma, n=6; adenoid cystic carcinoma, n=2; sebaceous adenocarcinoma, n=2; mucoepidermoid carcinoma, n=1; malignant lymphoma, n=10). The average time from symptom onset to diagnosis was 14.7 months (median=8 months; range=1-96 months). The analysis of patients revealed that lacrimal sac mass (22/25, 88.0%) was the most frequent symptom and a possible tumor marker. Most epithelial benign (n=3) and malignant epithelial (n=12) tumors were treated surgically (14/15, 93.3%). One malignant case was treated with heavy ion beam therapy. Eight patients were treated with postoperative (chemo)radiation therapy because of positive surgical margins (including one unanalyzed case). Local control was ultimately achieved in all but one case. The patient survived for 24 months with immune checkpoint inhibitors and subsequent chemotherapy for local and metastatic recurrence. Conclusion: We report our experience in the diagnosis and treatment of lacrimal sac tumors and analyze the clinical trends in cases involving these tumors. Postoperative radiotherapy and pharmacotherapy, including immune checkpoint inhibitors, may be useful for recurrent cases.

Published
2023

25. Correction to: Effectiveness and safety of nivolumab in patients with head and neck cancer in Japanese real‑world clinical practice: a multicentre retrospective clinical study

Author

Hanai, Nobuhiro, Shimizu, Yasushi, Kariya, Shin, Yasumatsu, Ryuji, Yokota, Tomoya, Fujii, Takashi, Tsukahara, Kiyoaki, Yoshida, Masafumi, Hanyu, Kenji, Ueda, Tsutomu, Hirakawa, Hitoshi, Takahashi, Shunji, Ono, Takeharu, Sano, Daisuke, Yamauchi, Moriyasu, Watanabe, Akihito, Omori, Koichi, Yamazaki, Tomoko, Monden, Nobuya, Kudo, Naomi, Arai, Makoto, Sakurai, Daiju, Asakage, Takahiro, Doi, Issei, Yamada, Takayuki, and Homma, Akihiro

Published
2021
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26. Exploratory retrospective study of risk factors for thromboembolism treated with multi-kinase inhibitor pazopanib or lenvatinib

Author

Nio, Kenta, Tsuchihashi, Kenji, Taguchi, Keisuke, Yoshihiro, Tomoyasu, Yamaguchi, Kyoko, Ito, Mamoru, Moriyama, Shohei, Fukata, Mitsuhiro, Fujiwara, Toshifumi, Setsu, Nokitaka, Endo, Makoto, Matsumoto, Yoshihiro, Nakashima, Yasuharu, Wakasaki, Takahiro, Yasumatsu, Ryuji, Ariyama, Hiroshi, Kusaba, Hitoshi, Kishimoto, Junji, Akashi, Koichi, and Baba, Eishi

Published
2020
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30. Clinical Management of Early-Stage Hypopharyngeal Squamous Cell Carcinoma: A Single-Institution Clinical Analysis.

Author

Yasumatsu, Ryuji, Manako, Tomomi, Jiromaru, Rina, Hashimoto, Kazuki, Wakasaki, Takahiro, Matsuo, Mioko, and Nakagawa, Takashi

Subjects
*HEAD & neck cancer diagnosis, *HEAD & neck cancer treatment, *HEAD & neck cancer, *RETROSPECTIVE studies, *EARLY detection of cancer, *TUMOR classification, *CANCER patients, *SURVIVAL rate, *TREATMENT effectiveness, *DESCRIPTIVE statistics, *RESEARCH funding, *ENDOSCOPIC gastrointestinal surgery, *SQUAMOUS cell carcinoma, *HYPOPHARYNGEAL cancer, *DISEASE management, *DISEASE complications, LARYNGEAL tumors
Abstract

Objective: Early detection of hypopharyngeal squamous cell carcinoma (SCC) is important for both an improved prognosis and less-invasive treatment. We retrospectively analyzed the detection rates of early hypopharyngeal SCCs according to the evaluation methods and the clinical management of early hypopharyngeal SCCs. Methods: Sixty-eight patients with early hypopharyngeal SCC who were diagnosed were reviewed. Results: The number of early hypopharyngeal cancer patients with asymptomatic or synchronous or metachronous esophageal cancer examined by upper gastrointestinal endoscopy with narrow-band imaging (NBI) was significantly higher than those examined by laryngopharyngeal endoscopy with NBI. The 3-year disease-specific survival rates according to T classification were as follows: Tis, 100%; T1, 100%; T2, 79.8%; and overall, 91.2%, respectively. Conclusions: Early-stage hypopharyngeal SCC can be cured by minimally invasive transoral surgery or radiotherapy. Observation of the pharynx using NBI in patients with a history of head and neck cancer, esophageal cancer, gastric cancer, or pharyngeal discomfort is very important, and routinely examining the pharynx with NBI, even in patients undergoing endoscopy for screening purposes, is recommended. [ABSTRACT FROM AUTHOR]

Published
2023
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35. Advanced Nasopharyngeal Carcinoma: Current and Emerging Treatment Options

Author

Jiromaru,Rina, Nakagawa,Takashi, and Yasumatsu,Ryuji

Subjects
Cancer Management and Research
Abstract

Rina Jiromaru,1 Takashi Nakagawa,1 Ryuji Yasumatsu2 1Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; 2Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine, Kindai University, Osaka, JapanCorrespondence: Ryuji Yasumatsu, Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine, Kindai University, 377-2 Onohigashi, Osaka, 589-0014, Japan, Tel +81-72-3660221, Fax +81-72-3682252, Email ryuji.yasumatsu@med.kindai.ac.jpAbstract: Nasopharyngeal carcinoma (NPC) has seen improved treatment outcomes and a decrease in incidence worldwide in recent years due to developments in medicine and improved public health. However, 70% of cases are still diagnosed at advanced stages and these advanced NPC cases show a poor prognosis. Reports on current and future treatment in advanced NPC are summarized. Chemoradiotherapy is the mainstay of treatment for advanced NPC. The administration of platinum agents as a concurrent drug and intensity modulated radiotherapy (IMRT) is the most appropriate irradiation method, and is associated with high local control rates. For induction and adjuvant chemotherapy, platinum-based two- or three-drug combination chemotherapy is recommended. The tumour volume, plasma Epstein-Barr virus (EBV)-DNA levels, and the tumour site are used to determine the indication for adjuvant and neo-adjuvant chemotherapy. The tolerability of induction chemotherapy is controversial, and the indications and timing should be carefully considered in each case. Chemotherapy is used for patients with distant metastasis. Gemcitabine/cisplatin is the first-line regimen. The efficacy of immune checkpoint inhibitor (ICI) treatment has recently been reported for NPC and, as in other areas of the head and neck, it is expected to be effective for patients with recurrent/distant metastasis. Trials are underway for various uses of ICIs, including induction chemotherapy, postoperative treatment, and use in combination with chemoradiotherapy. Immunotherapy for NPC, an EBV-associated cancer, has been reported to have some efficacy with immunotherapy used in other EBV-associated cancers. Immunotherapy may be introduced for NPC in the future, depending on the results of clinical trials. Future changes in the treatment of NPC are expected to include risk classification based on plasma EBV-DNA levels and the development of personalized treatment with individual selection of timing and type of therapy.Keywords: nasopharyngeal carcinoma, therapy, Epstein-Barr virus

Published
2022

36. Effectiveness and safety of weekly paclitaxel and cetuximab as a salvage chemotherapy following immune checkpoint inhibitors for recurrent or metastatic head and neck squamous cell carcinoma: A multicenter clinical study

Author

Wakasaki, Takahiro, primary, Manako, Tomomi, additional, Yasumatsu, Ryuji, additional, Hara, Hirotaka, additional, Toh, Satoshi, additional, Masuda, Muneyuki, additional, Yamauchi, Moriyasu, additional, Kuratomi, Yuichiro, additional, Nishimura, Emi, additional, Takeuchi, Toranoshin, additional, Matsuo, Mioko, additional, Jiromaru, Rina, additional, Hashimoto, Kazuki, additional, Komune, Noritaka, additional, and Nakagawa, Takashi, additional

Published
2022
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37. Real-world Experience With Pembrolizumab for Advanced-stage Head and Neck Cancer Patients: A Retrospective, Multicenter Study

Author

NAKANO, TAKAFUMI, primary, YASUMATSU, RYUJI, additional, HASHIMOTO, KAZUKI, additional, KUGA, RYOSUKE, additional, HONGO, TAKAHIRO, additional, YAMAMOTO, HIDETAKA, additional, MATSUO, MIOKO, additional, WAKASAKI, TAKAHIRO, additional, JIROMARU, RINA, additional, MANAKO, TOMOMI, additional, TOH, SATOSHI, additional, MASUDA, MUNEYUKI, additional, YAMAUCHI, MORIYASU, additional, KURATOMI, YUICHIRO, additional, TAURA, MASAHIKO, additional, TAKEUCHI, TORANOSHIN, additional, and NAKAGAWA, TAKASHI, additional

Published
2022
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39. Upper Aerodigestive Tract Carcinoma Surveillance Counterpoint: Japan

Author

Nakashima, Torahiko, Yasumatsu, Ryuji, Komune, Shizuo, Johnson, Frank E., editor, Maehara, Yoshihiko, editor, Browman, George P., editor, Margenthaler, Julie A., editor, Audisio, Riccardo A., editor, Thompson, John F., editor, Johnson, David Y., editor, Earle, Craig C., editor, and Virgo, Katherine S., editor

Published
2013
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40. Abstract 5210: Tumor immune characterization identifies age-stratified biomarkers for nivolumab in patients with head and neck squamous cell carcinoma: A nationwide collaborative study in Japan

Author

Tsujikawa, Takahiro, primary, Ohno, Kazuchika, additional, Saburi, Sumiyo, additional, Mitsuda, Junichi, additional, Yoshimura, Kanako, additional, Kimura, Alisa, additional, Morimoto, Hiroki, additional, Ohmura, Gaku, additional, Arai, Akihito, additional, Ogi, Hiroshi, additional, Shibata, Saya, additional, Ariizumi, Yosuke, additional, Tasaki, Akihisa, additional, Takahashi, Ryosuke, additional, Tateishi, Yumiko, additional, Kawabe, Hiroaki, additional, Ikeda, Sadakatsu, additional, Morita, Kei-ichi, additional, Tsunoda, Tatsuhiko, additional, Akashi, Takumi, additional, Kurata, Morito, additional, Imoto, Issei, additional, Shimizu, Yasushi, additional, Watanabe, Akihito, additional, Asada, Yukinori, additional, Hayashi, Ryuichi, additional, Saito, Yuki, additional, Ozawa, Hiroyuki, additional, Tsukahara, Kiyoaki, additional, Oridate, Nobuhiko, additional, Horii, Arata, additional, Maruo, Takashi, additional, Hanai, Nobuhiro, additional, Inohara, Hidenori, additional, Iwai, Hiroshi, additional, Fujii, Takashi, additional, Nibu, Ken-ichi, additional, Iwae, Shigemichi, additional, Ueda, Tsutomu, additional, Yasumatsu, Ryuji, additional, Umeno, Hirohito, additional, Masuda, Muneyuki, additional, Itoh, Kyoko, additional, Hirano, Shigeru, additional, and Asakage, Takahiro, additional

Published
2022
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41. Therapeutic effect of Nivolumab for advanced / recurrent temporal bone squamous cell carcinoma

Author

Noda, Teppei, primary, Komune, Noritaka, additional, Yasumatsu, Ryuji, additional, Akagi Tsuchihashi, Nana, additional, Tamae, Akihiro, additional, Matsumoto, Nozomu, additional, Sato, Kuniaki, additional, Uchi, Ryutaro, additional, Koike, Kensuke, additional, Wakasaki, Takahiro, additional, Tanaka, Risa, additional, and Nakagawa, Takashi, additional

Published
2022
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42. Clinicopathological Features of Cervical Esophageal Cancer: Retrospective Analysis of 63 Consecutive Patients Who Underwent Surgical Resection

Author

Saeki, Hiroshi, Tsutsumi, Satoshi, Yukaya, Takafumi, Tajiri, Hirotada, Tsutsumi, Ryosuke, Nishimura, Sho, Nakaji, Yu, Kudou, Kensuke, Akiyama, Shingo, Kasagi, Yuta, Nakashima, Yuichiro, Sugiyama, Masahiko, Sonoda, Hideto, Ohgaki, Kippei, Oki, Eiji, Yasumatsu, Ryuji, Nakashima, Torahiko, Morita, Masaru, and Maehara, Yoshihiko

Published
2017
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44. Treatment Efficacy of PD-1 Inhibitor Therapy in Patients With Recurrent and/or Metastatic Salivary Gland Carcinoma

Author

HASHIMOTO, KAZUKI, primary, YASUMATSU, RYUJI, additional, KUGA, RYOSUKE, additional, HONGO, TAKAHIRO, additional, YAMAMOTO, HIDETAKA, additional, MATSUO, MIOKO, additional, WAKASAKI, TAKAHIRO, additional, JIROMARU, RINA, additional, MANAKO, TOMOMI, additional, TOH, SATOSHI, additional, MASUDA, MUNEYUKI, additional, YAMAUCHI, MORIYASU, additional, KURATOMI, YUICHIRO, additional, URYU, HIDEOKI, additional, NAKASHIMA, TORAHIKO, additional, TAMAE, AKIHIRO, additional, TANAKA, RISA, additional, TAURA, MASAHIKO, additional, TAKEUCHI, TORANOSHIN, additional, YOSHIDA, TAKAMASA, additional, and NAKAGAWA, TAKASHI, additional

Published
2022
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45. Retrospective Study of Cisplatin/Carboplatin, 5-Fluorouracil Plus Cetuximab (EXTREME) for Advanced-stage Salivary Gland Cancer

Author

NAKANO, TAKAFUMI, primary, YASUMATSU, RYUJI, additional, HASHIMOTO, KAZUKI, additional, KUGA, RYOSUKE, additional, HONGO, TAKAHIRO, additional, YAMAMOTO, HIDETAKA, additional, MATSUO, MIOKO, additional, WAKASAKI, TAKAHIRO, additional, JIROMARU, RINA, additional, MANAKO, TOMOMI, additional, TOH, SATOSHI, additional, MASUDA, MUNEYUKI, additional, YAMAUCHI, MORIYASU, additional, KURATOMI, YUICHIRO, additional, URYU, HIDEOKI, additional, NAKASHIMA, TORAHIKO, additional, TAMAE, AKIHIRO, additional, TANAKA, RISA, additional, TAURA, MASAHIKO, additional, TAKEUCHI, TORANOSHIN, additional, YOSHIDA, TAKAMASA, additional, and NAKAGAWA, TAKASHI, additional

Published
2022
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49. Outcomes of long-term nivolumab and subsequent chemotherapy in Japanese patients with head and neck cancer: 2-year follow-up from a multicenter real-world study

Author

Yasumatsu, Ryuji, primary, Shimizu, Yasushi, additional, Hanai, Nobuhiro, additional, Kariya, Shin, additional, Yokota, Tomoya, additional, Fujii, Takashi, additional, Tsukahara, Kiyoaki, additional, Ando, Mizuo, additional, Hanyu, Kenji, additional, Ueda, Tsutomu, additional, Hirakawa, Hitoshi, additional, Takahashi, Shunji, additional, Ono, Takeharu, additional, Sano, Daisuke, additional, Yamauchi, Moriyasu, additional, Watanabe, Akihito, additional, Omori, Koichi, additional, Yamazaki, Tomoko, additional, Monden, Nobuya, additional, Kudo, Naomi, additional, Arai, Makoto, additional, Yonekura, Syuji, additional, Asakage, Takahiro, additional, Nekado, Takahiro, additional, Yamada, Takayuki, additional, and Homma, Akihiro, additional

Published
2021
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