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Matsumoto Y, Ayani N, Oya N, Kitaoka R, Watanabe A, Yoshii H, Kitaura Y, Inoue S, Narumoto J. Frequency and predictors of perioperative psychiatric symptom worsening in patients with schizophrenia spectrum disorders. Gen Hosp Psychiatry 2024; 87:148-150. [PMID: 37805351 DOI: 10.1016/j.genhosppsych.2023.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/09/2023]
Affiliation(s)
- Yoshihiro Matsumoto
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan; Medical Welfare Division, Kyoto Prefectural Mental Health Center, Kyoto, Japan
| | - Nobutaka Ayani
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan; Department of Psychiatry, National Hospital Organization, Maizuru Medical Center, Kyoto, Japan.
| | - Nozomu Oya
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Riki Kitaoka
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Anri Watanabe
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroko Yoshii
- Department of Nursing, Kansai Medical University Medical Center, Osaka, Japan
| | - Yuichi Kitaura
- Department of Psychiatry, Kansai Medical University, Osaka, Japan; Department of Psychiatry, Matsushita Memorial Hospital, Osaka, Japan
| | - Shinichiro Inoue
- Department of Nursing, Faculty of Human Health Sciences, Nimi University, Okayama, Japan
| | - Jin Narumoto
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Satake Y, Kuramochi I, Kawagishi R, Masuda M, Aki M, Oya N. The pros and cons of virtual networking events: online exploratory survey of psychiatrists' opinions. BJPsych Int 2024; 21:17-20. [PMID: 38304408 PMCID: PMC10803773 DOI: 10.1192/bji.2023.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/28/2023] [Accepted: 08/09/2023] [Indexed: 02/03/2024] Open
Abstract
We conducted an online questionnaire-based cross-sectional study to clarify psychiatrists' perspectives on virtual networking events. We compared two groups of respondents: those who had participated in virtual networking events (experienced group, n = 85) and those who had not (inexperienced group, n = 13). The experienced group had a greater level of agreement than the inexperienced group that virtual events were generally useful and helped with forming professional relationships and improving professional skills. Respondents in the experienced group considered the ease of participation and low financial burden to be advantages of virtual networking meetings and difficulties in building friendships and socialising to be disadvantages.
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Affiliation(s)
- Yuto Satake
- MD, PhD, Specially Appointed Assistant Professor, Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Izumi Kuramochi
- MD, PhD, Assistant Professor, Department of Psychiatry, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
| | - Ryo Kawagishi
- MD, Specialist, Department of Psychiatry, Chiba Psychiatric Medical Center, Chiba, Japan
| | - Masato Masuda
- MD, PhD, Assistant, Department of Psychiatry, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Morio Aki
- MD, PhD student, Department of Psychiatry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Nozomu Oya
- MD, PhD, Assistant Professor, Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Yasuda T, Matsuoka T, Takagi T, Oya N, Akazawa K, Inoue R, Mizushima K, Ouchi N, Adachi A, Kamitani T, Itoh Y, Naito Y, Yamada K, Matoba S, Narumoto J. The gut microbiota associated with pineal gland calcification. Geriatr Gerontol Int 2024; 24:178-180. [PMID: 37994221 DOI: 10.1111/ggi.14741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/24/2023]
Affiliation(s)
- Takeshi Yasuda
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Teruyuki Matsuoka
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
- Department of Psychiatry, National Hospital Organisation Maizuru Medical Center, Kyoto, Japan
| | - Tomohisa Takagi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
- Department for Medical Innovation and Translational Medical Science, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Nozomu Oya
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kentaro Akazawa
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ryo Inoue
- Department of Applied Biological Sciences, Faculty of Agriculture, Setsunan University, Osaka, Japan
| | - Katsura Mizushima
- Department of Human Immunology and Nutrition Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Norihiro Ouchi
- Department of Internal Medicine, Kyotango Municipal Yasaka Hospital, Kyoto, Japan
| | - Atsuo Adachi
- Department of Internal Medicine, Kyotango Municipal Yasaka Hospital, Kyoto, Japan
| | - Tadaaki Kamitani
- Department of Internal Medicine, Kyotango Municipal Yasaka Hospital, Kyoto, Japan
| | - Yoshito Itoh
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Naito
- Department of Human Immunology and Nutrition Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kei Yamada
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
- Department of Longevity and Regional Epidemiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Jin Narumoto
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Matsuoka T, Oya N, Narumoto J, Kitani-Morii F, Niwa F, Mizuno T, Akazawa K, Yamada K, Abe M, Takano H, Wakasugi N, Shima A, Sawamoto N, Ito H, Toda W, Hanakawa T. Reduced pineal volume may be associated with amyloid pathology and not with putative Lewy body pathology. J Neurol Neurosurg Psychiatry 2023:jnnp-2023-332252. [PMID: 38071576 DOI: 10.1136/jnnp-2023-332252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 11/29/2023] [Indexed: 12/22/2023]
Affiliation(s)
- Teruyuki Matsuoka
- Department of Psychiatry, Kyoto Prefectural University of Medicine, Kyoto, Japan
- Department of Psychiatry, NHO Maizuru Medical Center, Kyoto, Japan
| | - Nozomu Oya
- Department of Psychiatry, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Jin Narumoto
- Department of Psychiatry, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Fukiko Kitani-Morii
- Department of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Fumitoshi Niwa
- Department of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshiki Mizuno
- Department of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kentaro Akazawa
- Department of Radiology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kei Yamada
- Department of Radiology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mitsunari Abe
- Integrative Brain Imaging Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Harumasa Takano
- Integrative Brain Imaging Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Noritaka Wakasugi
- Integrative Brain Imaging Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Atsushi Shima
- Human Brain Research Center, Kyoto University, Kyoto, Japan
| | | | - Hiroshi Ito
- Department of Radiology and Nuclear Medicine, Fukushima Medical University, Fukushima, Japan
| | - Wataru Toda
- Department of Neuropsychiatry, Fukushima Medical University, Fukushima, Japan
| | - Takashi Hanakawa
- Integrative Brain Imaging Center, National Center of Neurology and Psychiatry, Tokyo, Japan
- Department of Integrated Neuroanatomy and Neuroimaging, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Toya R, Matsuyama T, Saito T, Fukugawa Y, Shiraishi S, Murakami D, Orita Y, Hirai T, Oya N. Prevalence and Risk Factors for Retropharyngeal and Retro-Styloid Lymph Node Metastasis in Hypopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2023; 117:e630. [PMID: 37785883 DOI: 10.1016/j.ijrobp.2023.06.2025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) We evaluated the prevalence and identified the risk factors for retropharyngeal and retro-styloid lymph node metastasis (LNM) in patients with hypopharyngeal carcinoma (HPC). This was achieved using a combination of MR and FDG-PET/CT images. MATERIALS/METHODS Two board-certified radiation oncologists, who experienced 16 and 18 years in the diagnosis and treatment of head and neck cancers retrospectively reviewed pretreatment FDG-PET/CT images and contrast-enhanced thin-slice CT and MR images of 155 patients with HPC who underwent radiotherapy. Observers assessed these images without prior knowledge of the patient's clinical information and disagreements were resolved by consensus. The radiological diagnostic criteria for lateral retropharyngeal LNM (RPLNM) and retro-styloid LNM (RSLNM) were a short-axis diameter of ≥5 mm and/or necrosis and/or abnormal FDG uptake. Any visible medial RPLN was defined as LNM. RESULTS RPLNM was confirmed in 20 (13%) patients. Of these, 10 (6%) had ipsilateral RPLNM, 5 (3%) had contralateral RPLNM, and 5 (3%) had bilateral RPLNM. No patients were diagnosed with medial RPLNM. Fisher's exact test revealed tumor site (p = 0.006), T category (p = 0.049), and cervical LNM (p < 0.001) to be significantly associated with RPLNM. Logistic regression analysis revealed posterior wall (PW) tumors (odds ratio [OR]: 4.128, 95% confidence interval [CI]: 1.339-12.727; p = 0.014) and bilateral or contralateral cervical LNM (OR: 11.577, 95% CI: 2.135-62.789; p = 0.005) to be significantly correlated with RPLNM. The RPLNM was found in 9 (32%) of the 28 patients with PW tumors. Of these 9 patients, 2 (7%) had ipsilateral RPLNM, 3 (11%) had contralateral RPLNM, and 4 (14%) had bilateral RPLNM. Fisher's exact test revealed the PW tumors to be significantly associated with contralateral RPLNM (p < 0.001). Retro-styloid LNM (RSLNM) was confirmed in two (1%) patients, both of whom had ipsilateral RSLNM with lymph nodes (LNs) of ≥15 mm in the upper limit of ipsilateral level II. Fisher's exact test revealed the LN of ≥15 mm in the upper limit of ipsilateral level II to be significantly associated with ipsilateral RSLNM (p = 0.001). CONCLUSION The RPLNM was identified in 13% of patients with HPC. The PW tumors and bilateral or contralateral cervical LNM were risk factors for RPLNM; particularly, PW tumors were a specific risk factor for contralateral RPLNM. Although the RSLNM was rare, LNs of ≥15 mm in the upper limit of ipsilateral level II were a risk factor for ipsilateral RSLNM.
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Affiliation(s)
- R Toya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan; Department of Radiological Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - T Matsuyama
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - T Saito
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Y Fukugawa
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - S Shiraishi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - D Murakami
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Y Orita
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - T Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - N Oya
- Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Kawagishi R, Kuramochi I, Satake Y, Masuda M, Iriki A, Imagawa H, Shimizu T, Aki M, Oya N, Sartorius N. Report on the 1st and 2nd Japan Young Psychiatrists Organization Online International Networking Meetings (JOIN meetings) in 2021 and 2022. Asian J Psychiatr 2023; 86:103679. [PMID: 37364332 DOI: 10.1016/j.ajp.2023.103679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/14/2023] [Accepted: 06/17/2023] [Indexed: 06/28/2023]
Abstract
Since 2002, the Japan Young Psychiatrists Organization (JYPO) has conducted an annual face-to-face Course for Academic Development of Psychiatrists (CADP). Since 2021, we held two international online meetings and studied whether it was possible to acquire professional and leadership skills. We found that participants were able to acquire knowledge and become acquainted with professional and leadership skills in online meetings. However, they didn't enough enable participants to get to know each other, develop friendships, or acquire professional and leadership skills. The advantages of online meetings included lower cost, avoiding infection during the pandemic, and the easy use of course materials.
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Affiliation(s)
- Ryo Kawagishi
- Certified Non-Profit Organization Japan Young Psychiatrists Organization (JYPO), Tokyo, Japan; Department of Psychiatry, Chiba Psychiatric Medical Center, Chiba, Japan
| | - Izumi Kuramochi
- Certified Non-Profit Organization Japan Young Psychiatrists Organization (JYPO), Tokyo, Japan; Department of Psychiatry, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
| | - Yuto Satake
- Certified Non-Profit Organization Japan Young Psychiatrists Organization (JYPO), Tokyo, Japan; Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Japan
| | - Masato Masuda
- Certified Non-Profit Organization Japan Young Psychiatrists Organization (JYPO), Tokyo, Japan; Department of Psychiatry, Faculty of Medicine, Fukuoka University, Japan
| | - Akihisa Iriki
- Certified Non-Profit Organization Japan Young Psychiatrists Organization (JYPO), Tokyo, Japan; Department of Psychiatry, Osaka Psychiatric Medical Center, Japan
| | - Hiroshi Imagawa
- Certified Non-Profit Organization Japan Young Psychiatrists Organization (JYPO), Tokyo, Japan; Department of Psychiatry, Tokyo Adachi Hospital, Japan
| | - Toshihiro Shimizu
- Certified Non-Profit Organization Japan Young Psychiatrists Organization (JYPO), Tokyo, Japan; Department of Psychiatry, Saitama Prefectural Psychiatric Hospital, Saitama, Japan
| | - Morio Aki
- Certified Non-Profit Organization Japan Young Psychiatrists Organization (JYPO), Tokyo, Japan; Department of Psychiatry, Graduate School of Medicine, Kyoto University, Japan
| | - Nozomu Oya
- Certified Non-Profit Organization Japan Young Psychiatrists Organization (JYPO), Tokyo, Japan; Department of Psychiatry, Graduate School of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Norman Sartorius
- Association for the Improvement of Mental Health Programs (AIMHP), Japan
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Toya R, Saito T, Fukugawa Y, Matsuyama T, Matsumoto T, Shiraishi S, Murakami D, Orita Y, Hirai T, Oya N. Prevalence and Risk Factors of Retro-Styloid Lymph Node Metastasis in Oropharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Ayani N, Oya N, Kitaoka R, Kuwahara A, Morimoto T, Sakuma M, Narumoto J. Epidemiology of adverse drug events and medication errors in four nursing homes in Japan: the Japan Adverse Drug Events (JADE) Study. BMJ Qual Saf 2022; 31:878-887. [PMID: 35450935 DOI: 10.1136/bmjqs-2021-014280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 03/25/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Worldwide, the emergence of super-ageing societies has increased the number of older people requiring support for daily activities. Many elderly residents of nursing homes (NHs) take drugs to treat chronic conditions; however, there are few reports of medication safety in NHs, especially from non-western countries. OBJECTIVE We examined the incidence and nature of adverse drug events (ADEs) and medication errors (MEs) in NHs for the elderly in Japan. DESIGN, SETTING, AND PARTICIPANTS The Japan Adverse Drug Events Study for NHs is a prospective cohort study that was conducted among all residents, except for short-term admissions, at four NHs for older people in Japan for 1 year. MEASUREMENTS Trained physicians and psychologists, five and six in number, respectively, reviewed all charts of the residents to identify suspected ADEs and MEs, which were then classified by the physicians into ADEs, potential ADEs and other MEs after the exclusion of ineligible events, for the assessment of their severity and preventability. The kappa score for presence of an ADE and preventability were 0.89 and 0.79, respectively. RESULTS We enrolled 459 residents, and this yielded 3315 resident-months of observation time. We identified 1207 ADEs and 600 MEs (incidence: 36.4 and 18.1 per 100 resident-months, respectively) during the study period. About one-third of ADEs were preventable, and MEs were most frequently observed in the monitoring stage (72%, 433/600), with 71% of the MEs occurring due to inadequate observation following the physician's prescription. CONCLUSION In Japan, ADEs and MEs are common among elderly residents of NHs. The assessment and appropriate adjustment of medication preadmission and postadmission to NHs are needed to improve medication safety, especially when a single physician is responsible for prescribing most medications for the residents, as is usually the case in Japan.
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Affiliation(s)
- Nobutaka Ayani
- Psychiatry, Kyoto Prefectural University of Medicine, Kyoto, Japan .,Psychiatry, National Hospital Organisation Maizuru Medical Center, Maizuru, Japan
| | - Nozomu Oya
- Psychiatry, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Riki Kitaoka
- Psychiatry, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akiko Kuwahara
- Psychiatry, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takeshi Morimoto
- Clinical Epidemiology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Mio Sakuma
- Clinical Epidemiology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Jin Narumoto
- Psychiatry, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Oya N, Ayani N, Kuwahara A, Kitaoka R, Omichi C, Sakuma M, Morimoto T, Narumoto J. Over Half of Falls Were Associated with Psychotropic Medication Use in Four Nursing Homes in Japan: A Retrospective Cohort Study. Int J Environ Res Public Health 2022; 19:ijerph19053123. [PMID: 35270813 PMCID: PMC8910089 DOI: 10.3390/ijerph19053123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/04/2022] [Accepted: 03/05/2022] [Indexed: 12/10/2022]
Abstract
Medication use can increase the risk of falls and injuries in nursing homes, creating a significant risk for residents. We performed a retrospective cohort study over one year to identify the incidence of drug-related falls with and without injury among four Japanese nursing homes with 280 beds. We evaluated the relationship between potential risk factors for falls and fall-related injuries while considering well-known risks such as ADLs and chronic comorbidities. By collaboratively reviewing care records, we enrolled 459 residents (mean age, 87) and identified 645 falls, including 146 injurious falls and 16 severe injurious falls requiring inpatient care, incidence: 19.5, 4.4, 0.5 per 100 resident-months, respectively. Medication influenced around three-quarters of all falls, >80% of which were psychotropic drugs. Regularly taking ≥5 medications was a risk factor for the initial falls (HR 1.33: CI 1.00−1.77, p = 0.0048) and injuries after falls (OR 2.41: CI 1.30−4.50, p = 0.006). Our findings on the incidence of falls with and without injury were similar to those in Western countries, where the use of psychotropic medication influenced >50% of falls. Discontinuing unnecessary medication use while simultaneously assessing patient ADLs and comorbidities with physicians and pharmacists may help to avoid falls in nursing homes.
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Affiliation(s)
- Nozomu Oya
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (N.O.); (A.K.); (R.K.); (C.O.); (J.N.)
| | - Nobutaka Ayani
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (N.O.); (A.K.); (R.K.); (C.O.); (J.N.)
- Department of Psychiatry, Maizuru Medical Center, Kyoto 625-8502, Japan
- Correspondence: ; Tel.: +81-75-251-5612
| | - Akiko Kuwahara
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (N.O.); (A.K.); (R.K.); (C.O.); (J.N.)
| | - Riki Kitaoka
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (N.O.); (A.K.); (R.K.); (C.O.); (J.N.)
| | - Chie Omichi
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (N.O.); (A.K.); (R.K.); (C.O.); (J.N.)
- Department of Psychiatry, Shiga University of Medical Science, Otsu 520-2192, Japan
| | - Mio Sakuma
- Department of Clinical Epidemiology, Hyogo College of Medicine, Nishinomiya 663-8501, Japan; (M.S.); (T.M.)
| | - Takeshi Morimoto
- Department of Clinical Epidemiology, Hyogo College of Medicine, Nishinomiya 663-8501, Japan; (M.S.); (T.M.)
| | - Jin Narumoto
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (N.O.); (A.K.); (R.K.); (C.O.); (J.N.)
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Matsumoto Y, Ayani N, Omichi C, Oya N, Matsuoka T, Kobayashi T, Kuroda J, Narumoto J. Diagnostic error regarding the cause of cytopenia when increasing psychotropic drugs: Two case reports. Asian J Psychiatr 2022; 67:102952. [PMID: 34891065 DOI: 10.1016/j.ajp.2021.102952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/24/2021] [Accepted: 11/28/2021] [Indexed: 11/26/2022]
Abstract
Several psychotropic drugs can cause cytopenia, especially after increasing dosages or initiating treatment. However, cytopenia in patients with psychiatric disorders can also be due to other conditions such as leukemia. In this report, we discuss two cases of cytopenia that occurred during the adjustment of psychotropic medications in patients with severe psychiatric illness. The initial diagnosis in each case was drug-induced cytopenia; however, later, the cause of cytopenia was found to be acute promyelocytic leukemia. When cytopenia is observed while increasing the dosage of psychotropic drugs, suspicious drugs should be discontinued, though the possibility that cytopenia could be due to other reasons should be considered. If there are no signs of recovering blood cells or if cytopenia is severe, psychiatrists should consult hematologists promptly.
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Affiliation(s)
- Yoshihiro Matsumoto
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Nobutaka Ayani
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychiatry, National Hospital Organization, Maizuru Medical Center, 2410 Yukinaga, Maizuru, Kyoto 625-8502, Japan.
| | - Chie Omichi
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychiatry, Shiga University of Medical Science, Tsukinowa-cho, Seta, Otsu, Shiga 520-2192, Japan
| | - Nozomu Oya
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Teruyuki Matsuoka
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Tsutomu Kobayashi
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine Graduate School of Medical Science, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Junya Kuroda
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine Graduate School of Medical Science, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Jin Narumoto
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
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Sun W, Matsuoka T, Imai A, Oya N, Narumoto J. Effects of Hearing Impairment, Quality of Life and Pain on Depressive Symptoms in Elderly People: A Cross-Sectional Study. Int J Environ Res Public Health 2021; 18:ijerph182212265. [PMID: 34832020 PMCID: PMC8620215 DOI: 10.3390/ijerph182212265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/18/2021] [Accepted: 11/20/2021] [Indexed: 11/16/2022]
Abstract
Reduction of the incidence of depression and improvement of quality of life (QOL) of elderly people have become important subjects. Various factors are related to depressive symptoms in elderly people, and sensory impairment is a key to health, QOL, and depressive symptoms. In this cross-sectional study, a visual acuity test and audiometry were used to examine the relationships of visual and hearing impairment and other factors with depressive symptoms in elderly people. A group of 490 community-dwelling people aged over 65 years old underwent vision and hearing tests, the Center for Epidemiologic Studies Depression Scale (CES-D), Mini-Mental State Examination (MMSE), and questionnaires on social isolation, QOL, and physical condition. Logistic regression analysis was used to examine factors affecting CES-D. Multivariate logistic regression analysis indicated that hearing impairment, pain score, and satisfaction with human relationships and activities of daily living (ADL) were independent predictors of CES-D scores. Satisfaction with human relationships and ADL can reduce depressive symptoms in elderly people. Hearing impairment, pain, and social contact are also important. Therefore, improvement of social networks, interpersonal relationships, ADL, and hearing impairment may be effective in improving these symptoms in elderly people.
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Nakao T, Murayama K, Takahashi S, Kayama M, Nishi D, Horinouchi T, Oya N, Kuga H. Mental Health Difficulties and Countermeasures during the Coronavirus Disease Pandemic in Japan: A Nationwide Questionnaire Survey of Mental Health and Psychiatric Institutions. Int J Environ Res Public Health 2021; 18:ijerph18147318. [PMID: 34299768 PMCID: PMC8306033 DOI: 10.3390/ijerph18147318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/03/2021] [Accepted: 07/06/2021] [Indexed: 12/22/2022]
Abstract
The number of people with coronavirus disease (COVID-19) has been increasing worldwide. Anxiety about potential infection, fear of severe illness, death, economic problems, and loneliness and isolation brought on by social distancing are increasingly being experienced by people. Therefore, it is imperative to address and improve such mental health-related problems during COVID-19. We aimed to investigate the current mental health care and psychological intervention statuses related to COVID-19 in Japan. In a questionnaire survey, 55 of 69 (80%) mental health and welfare centers and 194 of 931 (21%) psychiatric institutions across Japan responded. COVID-19 patients, their family members, and the general public often consulted the mental health and welfare institutions through telephone. The questionnaire included various information of mental health difficulties related to COVID-19 such as the numbers and contents of the consultations, and the type of the interventions. The contents of consultation included psychological symptoms (anxiety, depression, insomnia, and alcohol problems) and psychosocial problems (interpersonal problems, prejudice, and discrimination). Overall, 9% of mental health and welfare centers provided psychological first aid as psychological intervention and 28% of consultations involved cases requiring urgent care. In Japan, consultations about COVID-19-related mental health problems occurred mainly in mental health and welfare centers. There is urgent need to establish a system that enables mental health triage and brief psychological interventions that are feasible in the centers.
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Affiliation(s)
- Tomohiro Nakao
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka 8128582, Japan
- Correspondence: ; Tel.: +81-92-642-5620
| | - Keitaro Murayama
- Department of Psychiatry, Kyushu University Hospital, Fukuoka 8128582, Japan;
| | - Sho Takahashi
- Department of Disaster and Community Psychiatry, Faculty of Medicine, University of Tsukuba, Tsukuba 3058577, Japan;
| | - Mami Kayama
- Psychiatric & Mental Health Nursing, Graduate School of Nursing, St. Luke’s International University, Tokyo 1040044, Japan;
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo 1130033, Japan;
| | - Toru Horinouchi
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo 0600808, Japan;
| | - Nozomu Oya
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan;
| | - Hironori Kuga
- National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry, Tokyo 1878551, Japan;
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Omichi C, Ayani N, Oya N, Matsumoto Y, Tanaka M, Morimoto T, Kadotani H, Narumoto J. Association between discontinuation of benzodiazepine receptor agonists and post-operative delirium among inpatients with liaison intervention: A retrospective cohort study. Compr Psychiatry 2021; 104:152216. [PMID: 33227543 DOI: 10.1016/j.comppsych.2020.152216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/28/2020] [Accepted: 11/05/2020] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Several studies have investigated the association between benzodiazepine receptor agonist (BZDRA) use during the perioperative period and an elevated incidence of delirium. However, no study has focused on the time course of BZDRA use, including continuation, discontinuation, initiation, and no use. This study aimed to examine the influence of the time course of BZDRA use on post-operative delirium. METHODS This retrospective cohort study was conducted by reviewing medical records. We included patients who were scheduled for surgery under general anesthesia and had been referred to a liaison psychiatrist for pre-operative psychiatric assessment. The patients were classified into four groups based on the pre- and post-operative time course of oral BZDRA use, as follows: continuation, discontinuation, initiation, and no use (never used). The primary outcome was the prevalence of post-operative delirium in non-intensive care unit settings. We also performed stratified analyses according to age, the presence of cognitive impairment, the presence of delirium history, and antipsychotic drug use on admission. RESULTS Among 250 patients, 78 (31%) developed post-operative delirium. The Discontinuation group had a higher rate of delirium (49%, 24/49) than the other groups (Continuation [14%, 4/29]; Initiation [38%, 3/8], Never used [29%, 47/164], p = 0.008). CONCLUSIONS Abrupt discontinuation of BZDRAs during the perioperative period may be a risk factor for post-operative delirium and should therefore be avoided.
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Affiliation(s)
- Chie Omichi
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Nobutaka Ayani
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Psychiatry, National Hospital Organization, Maizuru Medical Center, 2410 Yukinaga, Maizuru, Kyoto 625-8502, Japan.
| | - Nozomu Oya
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Yoshihiro Matsumoto
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Maki Tanaka
- Department of Medical Safety Management, University Hospital, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Takeshi Morimoto
- Department of Clinical Epidemiology, Hyogo College of Medicine, 1-1 Mukogawa, Nishinomiya, Hyogo 663-8501, Japan
| | - Hiroshi Kadotani
- Department of Sleep and Behavioral Sciences, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga 520-2192, Japan
| | - Jin Narumoto
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
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Nakano T, Aoyama H, Onodera S, Matsumo Y, Shimamoto S, Igaki H, Matsuo M, Oya N, Ohta A, Saito H, Maruyama K, Kanemoto A, Sakurai T, Tanaka T, Kitamura N, Akazawa K, Maebayashi K. Reduced-Dose Whole Brain Radiation Therapy Combined With Stereotactic Irradiation For Solitary Or Oligo Brain Metastases Aiming At Minimizing Deterioration Of Neurocognitive Function Without Compromising Intracranial Tumor Control: Preliminary Results. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Saito T, Murotani K, Toya R, Tomitaka E, Matsuyama T, Yamaguchi K, Watakabe T, Oya N. Influence of the Pain Duration on Pain Outcomes Following Palliative Radiotherapy for Painful Tumors: The Sooner the Irradiation, the Better? Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Matsuoka T, Oya N, Yokota H, Akazawa K, Yamada K, Narumoto J. Pineal volume reduction in patients with mild cognitive impairment who converted to Alzheimer's disease. Psychiatry Clin Neurosci 2020; 74:587-593. [PMID: 32609399 DOI: 10.1111/pcn.13103] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/09/2020] [Accepted: 06/26/2020] [Indexed: 12/22/2022]
Abstract
AIM Pineal parenchymal volume (PPV) reduction is one of the predisposing factors for Alzheimer's disease (AD). Therefore, PPV could be used as a predictor of developing AD in clinical settings. We investigated whether PPV in patients with mild cognitive impairment (MCI) was correlated with conversion of these patients to AD. METHODS A total of 237 patients with MCI underwent brain magnetic resonance imaging. A two-sample t-test was used to compare PPV at baseline in MCI patients who converted to AD (MCI-C) with those who did not convert (MCI-NC). Logistic regression analysis with forced entry was used to identify predictors of AD, with variables of PPV, age, sex, education, APOE-ε4 alleles, Mini Mental State Examination score, and total intracranial volume at baseline. Two-way repeated-measures analysis of variance was conducted to compare PPV at baseline and at the last examination in the MCI-C and MCI-NC groups. RESULTS PPV in the MCI-C group was significantly lower than that in the MCI-NC group. In logistic regression analysis, two independent predictors of AD were identified: Mini Mental State Examination and PPV. Two-way repeated-measures analysis of variance revealed a significant group effect, but no time effect. CONCLUSION The pineal volume is a predictor of AD conversion, and pineal volume reduction in AD starts early when patients are still in the MCI stage. Thus, pineal volume reduction might be useful as a predictor of developing AD in clinical settings.
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Affiliation(s)
- Teruyuki Matsuoka
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Nozomu Oya
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hajime Yokota
- Diagnostic Radiology and Radiation Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kentaro Akazawa
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kei Yamada
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Jin Narumoto
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Kai Y, Arimura H, Toya R, Saito T, Matsuyama T, Fukugawa Y, Shimohigashi Y, Maruyama M, Oya N. Applicability of Diagnostic Position PET/CT Images Using a Rigid Image Registration Technique to Delineation of Gross Tumor Volumes for Nasopharyngeal Carcinoma Radiotherapy: An Observer Study. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Saito T, Tomitaka E, Toya R, Oya N. Possible Dose–Response Relationship in Palliative Radiotherapy for Non-bone Painful Lesions. Clin Oncol (R Coll Radiol) 2019; 31:391-398. [DOI: 10.1016/j.clon.2019.03.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 12/01/2018] [Accepted: 02/25/2019] [Indexed: 11/24/2022]
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Toya R, Saito T, Kai Y, Shiraishi S, Matsuyama T, Watakabe T, Sakamoto F, Tsuda N, Shimohigashi Y, Yamashita Y, Oya N. PO-0797 Impact of 99mTc-GSA SPECT image-guided inverse planning on DFH parameters for SBRT planning for HCC. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31217-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Toya R, Saito T, Shiraishi S, Kai Y, Murakami R, Matsuyama T, Watakabe T, Sakamoto F, Tsuda N, Shimohigashi Y, Yamashita Y, Oya N. EP-2093: Dose–function histogram evaluation using 99mTc-GSA SPECT/CT images for SBRT planning for HCC. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32402-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Toya R, Murakami R, Murakami D, Saito T, Matsuyama T, Baba Y, Toya Y, Yamashita Y, Oya N. Radiotherapy for T3N0 Glottic Carcinoma without Cord Fixation: Pattern of Failure Analysis. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Toya R, Kai Y, Saito T, Kuraoka A, Shimohigashi Y, Nakaguchi Y, Maruyama M, Murakami R, Yamashita Y, Oya N. Plan Quality and Delivery Time Comparisons Between Volumetric Modulated Arc Therapy and Intensity Modulated Radiation Therapy for Scalp Angiosarcoma: A Planning Study Using X-ray Voxel Monte Carlo Algorithm. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Noda M, Sato T, Hayakawa K, Tomita N, Kamikonnya N, Matoba S, Uki A, Baba H, Oya N, Hasegawa H, Shigematu N, Hida K, Furuhata T, Naitou T, Shimada M, Otuka K, Higuchi Y, Sakai Y, Takeuchi M, Watanabe M. A multicenter phase II study of preoperative concurrent chemoradiotherapy with S-1 plus irinotecan for locally advanced rectal cancer: SAMRAI-2. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Semba A, Murakami R, Murakami D, Toya R, Hirai T, Saito T, Matsuyama T, Toyofuku T, Oya N. Assessment of the Neck Node Levels in Patients With Hypopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Toyofuku T, Saito T, Toya R, Semba A, Fukugawa Y, Matsuyama T, Oya N. Improved Cancer Pain Management After Radiation Therapy for Painful Tumors. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Saito T, Toyofuku T, Toya R, Semba A, Fukugawa Y, Matsuyama T, Oya N. Physicians’ Reluctance to Choose Radiation Therapy Over 1 to 2 Weeks for Pain Relief in Patients With Bone Metastasis and a Poor Prognosis. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Toya R, Murakami R, Murakami D, Baba Y, Nishimura R, Matsuyama T, Saito T, Semba A, Yumoto E, Yamashita Y, Oya N. Radiation Therapy for Nasopharyngeal Carcinoma: Predictability of Treatment Outcomes at Interim Re-assessment. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Saito T, Matsuyama T, Toyofuku T, Fukugawa Y, Toya R, Oya N. Impact of Respiratory Gating on Tumor Position Variability During Stereotactic Body Radiation Therapy for Lung Cancer. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hirakata T, Fujisawa T, Yanagita Y, Horikoshi H, Oya N, Akiyoshi T, Kinoshita T, Kuwano H. P3-14-10: Early Predictive Value of Non-Responder to Docetaxel in Neoadjuvant Chemotherapy in Breast Cancer Using 18F- FDG-PET. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p3-14-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background; Clinical response is determined after several cycles of chemotherapy by changes in tumor size in imaging procedures including ultrasound, MRI or CT. The aim of this prospective study was to early detect non-responder to docetaxel (DTX) in neoadjuvant chemotherapy using 18F- FDG-PET in patients with breast cancer. Method; 41 patients were eligible for this study. 37 were assessable (4 were not eligible or not evaluable) with Invasive carcinoma (T1:10%, T2: 83%). All 37 patients were treated with 4 cycles of docetaxel (75mg per square meter) followed by 4 cycles of FEC(cyclophosphamide/epirubicin/fluorouracil: 500/75/500 mg per square meter) before surgery. 18F-FDG-PET response rate was evaluated between before and after the first cycle of DTX. 18F-FDG-PET images were analyzed by standardized uptake value, SUVmax. Clinical response is determined by reduction rate in tumor size with MRI (RECIST criteria) between before the first cycle and after the fourth cycle of DTX. Pathological response evaluated by core needle biopsy after the fourth cycle of DTX.
Result; 18F-FDG-PET response rate after the first cycle of DTX showed correlation with tumor size reduction rate with MRI image after the fourth cycle of DTX (r=0.746)(P <.001). 0 out of 8 patients (0%) revealed cPR with MRI changes in SUV decrease less than 18% (p <.001). 8 out of 13 patients (62%) showed cPR (cCR = 0) with MRI in SUV decrease over 19 to 44% (P <.001). 9 out of 16 patients (56%) were cPR, and 7 out of them (44%) showed cCR with MRI in SUV decrease over 45% (P <.001).
Conclusion; Changes of 18F-FDG SUVs in tumors were statistically significantly different between responding and nonresponding (P <.001). SUV decrease less than 18% after the first cycle indicated potential failure to DTX in neoadjuvant chemotherapy.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P3-14-10.
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Affiliation(s)
- T Hirakata
- 1Gunma Prefectural Cancer Center, Ota, Gunma, Japan; Tsurugaya Hospital, Isesaki, Gunma, Japan; Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - T Fujisawa
- 1Gunma Prefectural Cancer Center, Ota, Gunma, Japan; Tsurugaya Hospital, Isesaki, Gunma, Japan; Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - Y Yanagita
- 1Gunma Prefectural Cancer Center, Ota, Gunma, Japan; Tsurugaya Hospital, Isesaki, Gunma, Japan; Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - H Horikoshi
- 1Gunma Prefectural Cancer Center, Ota, Gunma, Japan; Tsurugaya Hospital, Isesaki, Gunma, Japan; Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - N Oya
- 1Gunma Prefectural Cancer Center, Ota, Gunma, Japan; Tsurugaya Hospital, Isesaki, Gunma, Japan; Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - T Akiyoshi
- 1Gunma Prefectural Cancer Center, Ota, Gunma, Japan; Tsurugaya Hospital, Isesaki, Gunma, Japan; Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - T Kinoshita
- 1Gunma Prefectural Cancer Center, Ota, Gunma, Japan; Tsurugaya Hospital, Isesaki, Gunma, Japan; Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
| | - H Kuwano
- 1Gunma Prefectural Cancer Center, Ota, Gunma, Japan; Tsurugaya Hospital, Isesaki, Gunma, Japan; Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan
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Toya R, Murakami R, Imuta M, Matsuyama T, Saito T, Shiraishi S, Yoshida M, Tomiguchi S, Yamashita Y, Oya N. Impact of Hybrid FDG-PET/CT on Gross Tumor Volume Definition of Cervical Esophageal Cancer: Improving Inter- and Intra-observer Variations. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Tomitaka E, Murakami R, Teshima K, Nomura T, Hirai T, Hiraki A, Yamashita Y, Shinohara M, Oya N, Tomiguchi S. Longitudinal Changes of Parotid Glands after 30Gy Irradiation in Patients with Oral Cavity Cancer Treated with Preoperative Conventional Radiation Therapy. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Murakami R, Nomura T, Toya R, Teshima K, Hirai T, Ohta K, Yamashita Y, Oya N, Shinohara M. Phase II Study of Preoperative Concurrent Chemoradiation Therapy with S-1 in Patients with T4 Oral Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Teshima K, Murakami R, Tomitaka E, Nomura T, Toya R, Hiraki A, Nakayama H, Hirai T, Shinohara M, Oya N, Yamashita Y. Radiation-induced Parotid Gland Changes in Oral Cancer Patients: Correlation Between Parotid Volume and Saliva Production. Jpn J Clin Oncol 2009; 40:42-6. [DOI: 10.1093/jjco/hyp113] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Shibamoto Y, Streffer C, Sasai K, Oya N, Abe M. Radiosensitization Efficacy of KU-2285, RP-170 and Etanidazole at Low Radiation Doses: Assessment byin VitroCytokinesis-block Micronucleus Assay. Int J Radiat Biol 2009; 61:473-8. [PMID: 1349329 DOI: 10.1080/09553009214551231] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Since the cytokinesis-block micronucleus assay is very sensitive at low radiation doses, we used it to investigate the in vitro sensitizing effects of two new hypoxic cell sensitizers (KU-2285, a fluorinated 2-nitroimidazole and RP-170, a 2-nitroimidazole nucleoside analogue) at 1-3 Gy in comparison with etanidazole. Exponentially growing EMT6 cells were treated with the drugs under aerobic or hypoxic conditions for 40 min prior to and during irradiation, after which the drugs were removed and cytochalasin B (2 micrograms/ml) was added to the medium. The number of micronuclei in binucleate cells was counted after 42 h of culture. Under aerobic conditions the three compounds at 5 mM had no sensitizing effect. Under hypoxic conditions the sensitizer enhancement ratio (SER) at 5 mM was 3.8 for KU-2285, 3.2 for RP-170, and 2.3 for etanidazole, while the oxygen enhancement ratio was 2.9. When the cells were pretreated under hypoxic conditions with drugs at 5 mM but then irradiated under aerobic conditions, KU-2285 and RP-170 had a sensitizing effect whereas etanidazole did not. The sensitizers were also tested at 0.5 and 1 mM, and the SER values were compared with those obtained at high doses (15-30 Gy) using a colony assay. The SER at low doses was higher than that at high doses for 1 and 5 mM KU-2285 and 5 mM RP-170, while the SERs were similar for all concentrations of etanidazole and the lower concentrations of KU-2285 and RP-170. These results might suggest the potential usefulness of KU-2285 and RP-170 in clinical radiotherapy.
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Affiliation(s)
- Y Shibamoto
- Department of Radiology, Faculty of Medicine, Kyoto University, Japan
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Sasai K, Iwai H, Yoshizawa T, Nishimoto S, Shibamoto Y, Kitakabu Y, Oya N, Takahashi M, Abe M. Pharmacokinetics of Fluorinated 2-nitroimidazole Hypoxic Cell Radiosensitizers in Murine Peripheral Nervous Tissue. Int J Radiat Biol 2009; 62:221-7. [PMID: 1355516 DOI: 10.1080/09553009214552041] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
We have previously reported that KU-2285, a 2-nitroimidazole with a fluorinated N1-substituent (-CH2-CF2CONH(CH2)nOH, n = 2), was a promising hypoxic cell radiosensitizer. In this study the pharmacokinetics of KU-2285 and its related compounds (n = 3 and n = 4) were compared with those of etanidazole (a 2-nitroimidazole with an N1-substituent of -CH2CONH(CH2)nOH, n = 2) and its related compounds (n = 3 and n = 4) to assess the effects of incorporation of a CF2 group. The lipophilicity of the fluorinated compounds was higher than that of etanidazole, as measured by the octanol/water partition coefficient. As the number of CH2 groups increased, the lipophilicity of the compounds in both the KU-2285 and etanidazole series increased. The brain tissue levels of the fluorinated compounds were as low as those of the etanidazole derivatives, while the biological half-lives of the fluorinated compounds in peripheral nervous tissues were shorter than those of related non-fluorinated compounds.
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Affiliation(s)
- K Sasai
- Department of Radiology, Faculty of Medicine, Kyoto University, Japan
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Murakami R, Uozumi H, Hirai T, Nishimura R, Katsuragawa S, Shiraishi S, Toya R, Tashiro K, Kawanaka K, Oya N, Tomiguchi S, Yamashita Y. Impact of FDG-PET/CT fused imaging on tumor volume assessment of head-and-neck squamous cell carcinoma: intermethod and interobserver variations. Acta Radiol 2008; 49:693-9. [PMID: 18568563 DOI: 10.1080/02841850802027034] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Although gross tumor volume (GTV) at the primary site can predict local control of head-and-neck squamous cell carcinoma (SCC) in patients who are treated with organ-preservation therapy, GTV assessment does not eliminate substantial interobserver variation. PURPOSE To evaluate whether F-18-fluorodeoxyglucose positron emission tomography (FDG-PET)/computed tomography (CT) fused imaging provides additional information for GTV assessment. MATERIAL AND METHODS We obtained FDG-PET/CT fused images on 20 patients with head-and-neck SCC. All had undergone preoperative conventional workup, including contrast-enhanced CT and magnetic resonance imaging (MRI). The GTV of the primary tumors was designed by two independent observers who used routine clinical data. Observer A was a radiologist and observer B a radiation oncologist. GTV1 and GTV2 were designed without and with FDG-PET/CT, respectively. For geometric interobserver comparison, we calculated the concordance rate as the ratio of the intersection (AxB) of the GTVs to their union (AxB). Intermethod (GTV1 vs. GTV2) and interobserver (A vs. B) differences in the GTVs were assessed by Bland-Altman analysis and the Spearman rank-correlation test. The interobserver concordance rates for GTV1 and GTV2 were compared using a two-tailed paired-samples t test. RESULTS On FDG-PET/CT, all primary tumors were visualized. There was no systemic trend for a volume difference between GTV1 and GTV2. Although the 95% limits of agreement were wider for interobserver than intermethod differences, the 95% limits of interobserver agreement were narrower for GTV2 than GTV1. The mean interobserver concordance rate for GTV2 was higher than for GTV1 (54.5% vs. 39.1%, P=0.0002). CONCLUSION FDG-PET/CT is a useful modality for consistent GTV assessment, which should not be used as a single modality but rather to obtain supplemental information in patients with head-and-neck SCC.
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Affiliation(s)
- R. Murakami
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - H. Uozumi
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - T. Hirai
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - R. Nishimura
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - S. Katsuragawa
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - S. Shiraishi
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - R. Toya
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - K. Tashiro
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - K. Kawanaka
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - N. Oya
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - S. Tomiguchi
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
| | - Y. Yamashita
- Department of Radiation Oncology and Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan; Department of Medical Information Systems, Kumamoto University School of Health Sciences, Kumamoto, Japan; Department of Radiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan; Uozumi Clinic, Kumamoto, Japan
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Hirai T, Murakami R, Nakamura H, Kitajima M, Fukuoka H, Sasao A, Akter M, Hayashida Y, Toya R, Oya N, Awai K, Iyama K, Kuratsu JI, Yamashita Y. Prognostic value of perfusion MR imaging of high-grade astrocytomas: long-term follow-up study. AJNR Am J Neuroradiol 2008; 29:1505-10. [PMID: 18556364 DOI: 10.3174/ajnr.a1121] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Although the prognostic value of perfusion MR imaging in various gliomas has been investigated, that in high-grade astrocytomas alone has not been fully evaluated. The purpose of this study was to evaluate retrospectively whether the tumor maximum relative cerebral blood volume (rCBV) on pretreatment perfusion MR imaging is of prognostic value in patients with high-grade astrocytoma. MATERIALS AND METHODS Between January 1999 and December 2002, 49 patients (30 men, 19 women; age range, 23-76 years) with supratentorial high-grade astrocytoma underwent MR imaging before the inception of treatment. The patient age, sex, symptom duration, neurologic function, mental status, Karnofsky Performance Scale, extent of surgery, histopathologic diagnosis, tumor component enhancement, and maximum rCBV were assessed to identify factors affecting survival. Kaplan-Meier survival curves, the logrank test, and the multivariate Cox proportional hazards model were used to evaluate prognostic factors. RESULTS The maximum rCBV was significantly higher in the 31 patients with glioblastoma multiforme than in the 18 with anaplastic astrocytoma (P < .03). The 2-year overall survival rate was 67% for 27 patients with a low (< or =2.3) and 9% for 22 patients with a high (>2.3) maximum rCBV value (P < .001). Independent important prognostic factors were the histologic diagnosis (hazard ratio = 9.707; 95% confidence interval (CI), 3.163-29.788), maximum rCBV (4.739; 95% CI, 1.950-11.518), extent of surgery (2.692; 95% CI, 1.196-6.061), and sex (2.632; 95% CI, 1.153-6.010). CONCLUSION The maximum rCBV at pretreatment perfusion MR imaging is a useful clinical prognostic biomarker for survival in patients with high-grade astrocytoma.
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Affiliation(s)
- T Hirai
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
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Nakamura K, Shioyama Y, Tokumaru S, Hayashi N, Oya N, Hiraki Y, Kusuhara K, Toita T, Suefuji H, Hayabuchi N, Terashima H, Makino M, Jingu K. Variation of Clinical Target Volume Definition among Japanese Radiation Oncologists in External Beam Radiotherapy for Prostate Cancer. Jpn J Clin Oncol 2008; 38:275-80. [DOI: 10.1093/jjco/hyn014] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Murakami R, Uozumi H, Hirai T, Nishimura R, Shiraishi S, Ohta K, Murakami D, Oya N, Katsuragawa S, Yamashita Y. 1095. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Oya N, Isomura M, Tachiiri S, Kaneyasu Y, Hareyama M, Mitsuhashi N, Nishimura Y, Akimoto T, Miki Y, Hiraoka M. 2637. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.1051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Murakami R, Nishimura R, Baba Y, Yumoto E, Oya N, Yamashita Y. Concurrent Chemoradiation Therapy with Low-Dose CDDP and UFT for Glottic Carcinomas: Evaluation Using The Sixth Edition of The UICC TNM Staging System. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sakamoto T, Oya N, Nagata Y, Hiraoka M. The outcome and the adverse effect of postoperative radiotherapy for keloids: A prospective study with a total dose of 20 Gy. Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.07.521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Oya N, Sai H, Tachiiri S, Mitsumori M, Nagata Y, Hiraoka M. Prediction of radiotherapy-induced dermatitis by comet assay in ex vivo irradiated patients’ lymphocytes. Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.07.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Okumura S, Mitsumori M, Yamauchi C, Kawamura S, Kokubo M, Oya N, Nagata Y, Mise K, Kodama H, Hiraoka M. Feasibility of breast conserving therapy for multicentric breast cancer. Int J Radiat Oncol Biol Phys 2002. [DOI: 10.1016/s0360-3016(02)03067-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Oya N, Negoro Y, Shibuya K, Kawamura Y, Ishikawa T, Sasai K, Ohno H, Uchiyama T, Hiraoka M. Prospective analysis of lung toxicity after fractionated total body irradiation : dose rate elevation up to 19 cGy/min is not a risk factor. Int J Radiat Oncol Biol Phys 2002. [DOI: 10.1016/s0360-3016(02)03572-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tosaka M, Oya N, Kobayashi S, Kamagata M, Kohga H, Sasaki T. Pineal epidermoid cyst visualized by diffusion-weighted magnetic resonance imaging. Acta Neurochir (Wien) 2002; 143:205-6. [PMID: 11459096 DOI: 10.1007/s007010170130] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- M Tosaka
- Department of Neurosurgery, Gunma University School of Medicine, Maebashi, Japan
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Yu H, Mitsumori M, Nagata Y, Katakura Y, Kokubo M, Oya N, Fujishiro S, Sasai K, Hiraoka M, Kan N. Meningeal carcinomatosis in patients with breast cancer: report of 8 patients. Breast Cancer 2001; 8:74-8. [PMID: 11180770 DOI: 10.1007/bf02967482] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Meningeal carcinomatosis (MC) is an uncommon but aggressive complication of advanced breast cancer with a recently increasing incidence. Although the prognosis is extremely poor for MC patients, early diagnosis and appropriate treatment are important. SUBJECTS AND METHODS We reviewed 8 cases of MC from breast cancer at Kyoto University Hospital from 1990 to 1999. The median age was 51.5 years. All patients had widespread systemic metastases when diagnosed with MC. clinical symptoms were categorized into 3 groups: cranial nerve symptoms, spinal nerve symptoms, and other symptoms. Imaging studies were positive for MC in only 4 patients. Initial CSF cytology studies were positive in 4 patients, and repeated CSF cytology yielded positive results in the remaining 4 patients. Thus the median interval between the onset of any clinical symptom of MC and the initiation of treatment was 22.5 days (range 7 to 120 days ). All patients received whole brain radiotherapy (WBRT). Four patients were given intrathecal chemotherapy and/or intrathecal immunotherapy in addition to WBRT. RESULTS Improvement of cranial nerve symptoms, spinal nerve symptoms, and other symptoms were observed in 3/5, 1/3, and 5/7 patients, respectively. Patients with cranial nerve symptoms who started WBRT within 29 days of the onset of the symptoms showed at least partial recovery whereas patients who started WBRT later showed no recovery. The median survival was 123 days (53 to 310 days). MC was the direct cause of death in 1 of 8 patients. CONCLUSION When MC is clinically suspected, neither a negative imaging study nor a single negative CSF cytology can rule out MC. Prompt initiation of WBRT with or without intrathecal chemotherapy may be important for recovery from cranial nerve symptoms.
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Affiliation(s)
- H Yu
- Department of Therapeutic Radiology and Oncology, Graduate School of Medicine, Kyoto University, 54 Shogoin-kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
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Oya N, Kokubo M, Mizowaki T, Shibamoto Y, Nagata Y, Sasai K, Nishimura Y, Tsuboyama T, Toguchida J, Nakamura T, Hiraoka M. Definitive intraoperative very high-dose radiotherapy for localized osteosarcoma in the extremities. Int J Radiat Oncol Biol Phys 2001; 51:87-93. [PMID: 11516856 DOI: 10.1016/s0360-3016(01)01603-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE To evaluate the outcome and adverse effects in patients with osteosarcoma treated with very high-dose definitive intraoperative radiotherapy (IORT), with the intention of saving the affected limb. METHODS AND MATERIALS Thirty-nine patients with osteosarcoma in their extremities were treated with definitive IORT. The irradiation field included the tumor plus an adequate wide margin and excluded the major vessels and nerves. Forty-five to 80 Gy of electrons or X-rays were delivered. The median follow-up of the surviving patients was 124 months. RESULTS The cause-specific and relapse-free 5-year survival rate was 50% and 43%, respectively. Distant metastasis developed in 23 patients; 19 died and 4 were alive for >10 years. Nine local recurrences were found 4-29 months after IORT in the affected limb. No radiation-induced skin reaction or nerve palsy was observed in the patients treated with X-rays. Experiments using phantoms also confirmed that the scatter dose was below the toxic level in the IORT setting with X-rays. CONCLUSIONS Very high-dose definitive IORT combined with preventive nailing and chemotherapy appeared to be a promising quality-of-life-oriented alternative to treating patients with osteosarcomas in the extremities, although the problem of recurrences from the surrounding unirradiated soft tissue remains to be solved.
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Affiliation(s)
- N Oya
- Department of Radiology, Kyoto University, Faculty of Medicine, Sakyo-ku, Kyoto, Japan.
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Arai K, Kawamura O, Naruse I, Tsunekawa K, Hayashi A, Yonezu M, Oya N, Takagi H, Mori M, Kon Y. [A case of chronic pancreatitis with diffuse irregular narrowing of the pancreatic duct complicated by Sjögren's syndrome and interstitial pneumonia]. Nihon Shokakibyo Gakkai Zasshi 2001; 98:847-52. [PMID: 11510089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Affiliation(s)
- K Arai
- 1st Department of Internal Medicine, Gunma University
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Abstract
Adult T-cell leukemia (ATL) is endemic in southwestern Japan, in the Caribbean islands, and in central Africa. Human T-cell lymphotropic virus type I (HTLV-I) is the etiologic agent of ATL. The clinical characteristics are (1) onset in adulthood, (2) subacute or chronic leukemia with rapidly progressive terminal course, (3) frequent skin lesions, (4) lymphadenopathy that characteristically spares the mediastinum, (5) hepatosplenomegaly, (6) hypercalcemia, and (7) a tendency toward geographical clustering. Although hypercalcemia and osteoclastic activity due to parathyroid hormone-related peptide are frequently reported histologically, radiographic abnormalities of bone are not common. Two major patterns of osteolytic lesions observed in ATL are "punched-out" lesions resembling multiple myeloma and osteolytic metastasis and subperiosteal bone resorptions similar to those in hyperparathyroidism.
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Affiliation(s)
- J Aoki
- Department of Diagnostic Radiology, Gunma University School of Medicine, 3--39--22 Showa-machi, Maebashi, 371--8511, Japan
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