The Japan Neurosurgical Database: Overview and Results of the First-year Survey
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- IIHARA Koji
- Department of Neurosurgery, Kyushu University Graduate School of Medical Sciences
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- TOMINAGA Teiji
- Department of Neurosurgery, Tohoku University Graduate School of Medicine
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- SAITO Nobuhito
- Department of Neurosurgery, The University of Tokyo
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- SUZUKI Michiyasu
- Department of Neurosurgery, Yamaguchi University Graduate School of Medicine
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- DATE Isao
- Department of Neurological Surgery, Okayama University Graduate School of Medicine
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- FUJII Yukihiko
- Department of Neurosurgery, Brain Research Institute, Niigata University
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- HONGO Kazuhiro
- Department of Neurosurgery, Shinshu University School of Medicine Department of Neurosurgery, Ina Central Hospital
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- HOUKIN Kiyohiro
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine
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- KATO Amami
- Department of Neurosurgery, Kindai University Faculty of Medicine
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- KATO Yoko
- Department of Neurosurgery, Fujita Health University Bantane Hospital
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- KAWAMATA Takakazu
- Department of Neurosurgery, Tokyo Women’s Medical University
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- KIM Phyo
- Neurologic Surgery, Dokkyo Medical University
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- KINOUCHI Hiroyuki
- Department of Neurosurgery, University of Yamanashi Interdisciplinary Graduate School of Medicine
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- KOHMURA Eiji
- Department of Neurosurgery, Kobe University Graduate School of Medicine
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- KURISU Kaoru
- Department of Neurosurgery, Hiroshima University
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- MARUYAMA Keisuke
- Department of Neurosurgery, Kyorin University School of Medicine
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- MIKUNI Nobuhiro
- Department of Neurosurgery, Sapporo Medical University
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- MIYAMOTO Susumu
- Department of Neurosurgery, Kyoto University Graduate School of Medicine
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- MORITA Akio
- Department of Neurosurgery, Nippon Medical School
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- NAKASE Hiroyuki
- Department of Neurosurgery, Nara Medical University
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- NARITA Yoshitaka
- Department of Neurosurgery and Neuro-Oncology, National Cancer Center Hospital
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- NISHIKAWA Ryo
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center
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- NOZAKI Kazuhiko
- Department of Neurosurgery, Shiga University of Medical Science
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- OGASAWARA Kuniaki
- Department of Neurosurgery, Iwate Medical University
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- OHATA Kenji
- Department of Neurosurgery, Osaka City University
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- SAKAI Nobuyuki
- Department of Neurosurgery, Kobe City Medical Center General Hospital
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- SAKAMOTO Hiroaki
- Department of Pediatric Neurosurgery, Osaka City General Hospital
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- SHIOKAWA Yoshiaki
- Department of Neurosurgery, Kyorin University School of Medicine
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- SONODA Yukihiko
- Department of Neurosurgery, Yamagata University Faculty of Medicine
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- TAKAHASHI Jun C
- Department of Neurosurgery, National Cerebral and Cardiovascular Center
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- UEKI Keisuke
- Neurologic Surgery, Dokkyo Medical University
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- WAKABAYASHI Toshihiko
- Department of Neurosurgery, Nagoya University Graduate School of Medicine
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- YAMAMOTO Takamitsu
- Sonodakai Rehabilitation Hospital
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- YOSHIDA Kazunari
- Department of Neurosurgery, Keio University School of Medicine
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- KAYAMA Takamasa
- Department of Advanced Medicine, Yamagata University School of Medicine
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- ARAI Hajime
- Department of Neurosurgery, Juntendo University Faculty of Medicine
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Abstract
<p>The Japan Neurosurgical Database (JND) is a prospective observational study registry established in 2017 by the Japan Neurosurgical Society (JNS) to visualize real-world clinical practice, promote science, and improve the quality of care and neurosurgery board certification in Japan. We summarize JND’s aims and methods, and describes the 2018 survey results. The JND registered in-hospital patients’ clinical data mainly from JNS training institutions in 2018. Caseload, patient demographics, and in-hospital outcomes of the overall cohort and a neurosurgical subgroup were examined according to major classifications of main diagnosis. Neurosurgical caseload per neurosurgeon in training in core hospitals in 2018 was calculated as an indicator of neurosurgical training. Of 523,283 cases (male 55.3%) registered from 1360 participating institutions, the neurosurgical subgroup comprised of 33.9%. Among the major classifications, cerebrovascular diseases comprised the largest proportion overall and in the neurosurgical subgroup (53.1%, 41.0%, respectively), followed by neurotrauma (19.1%, 25.5%), and brain tumor (10.4%, 12.8%). Functional neurosurgery (6.4%, 3.7%), spinal and peripheral nerve disorders (5.1%, 10.1%), hydrocephalus/developmental anomalies (2.9%, 5.3%), and encephalitis/infection/inflammatory and miscellaneous diseases (2.9%, 1.6%) comprised smaller proportions. Most patients were aged 70–79 years in the overall cohort and neurosurgical subgroup (27.8%, 29.4%). Neurotrauma and cerebrovascular diseases in the neurosurgical subgroup comprised a higher and lower proportion, respectively, than in the overall cohort in elderly patients (e.g. 80 years, 46.9% vs. 33.5%, 26.8% vs. 54.4%). The 2018 median neurosurgical caseload per neurosurgeon in training was 80.7 (25–75th percentile 51.5–117.5). These initial results from 2018 reveal unique aspects of neurosurgical practice in Japan.</p>
Journal
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- Neurologia medico-chirurgica
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Neurologia medico-chirurgica 60 (4), 165-190, 2020
The Japan Neurosurgical Society