Potential crowdedness of mechanical thrombectomy and cerebral infarction mortality in Japan : Application of inverted two-step floating catchment area method

Ohashi, Kazuki; Fujiwara, Kensuke; Osanai, Toshiya; Tanikawa, Takumi; Bando, Kyohei; Yamasaki, Shojiro; Aoki, Tomohiro; Gu, Songzi; Ogasawara, Katsuhiko

Potential crowdedness of mechanical thrombectomy and cerebral infarction mortality in Japan : Application of inverted two-step floating catchment area method

Ohashi, Kazuki; Fujiwara, Kensuke; Osanai, Toshiya et al.

Journal of stroke and cerebrovascular diseases, 2022, 31(9), 106625

Permalink : https://hdl.handle.net/2115/90330

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アクセス権	open access
URI	https://hdl.handle.net/2115/90330
タイトル	Potential crowdedness of mechanical thrombectomy and cerebral infarction mortality in Japan : Application of inverted two-step floating catchment area method
著者	Ohashi, Kazuki ; Fujiwara, Kensuke ; Osanai, Toshiya ; Tanikawa, Takumi ; Bando, Kyohei ; Yamasaki, Shojiro ; Aoki, Tomohiro ; Gu, Songzi ; Ogasawara, Katsuhiko
e-Rad_Researcher 20848527 著者名 Ohashi, Kazuki
著者名 Fujiwara, Kensuke
e-Rad_Researcher 90622788 著者名 Osanai, Toshiya
e-Rad_Researcher 40446539 著者名 Tanikawa, Takumi
著者名 Bando, Kyohei
著者名 Yamasaki, Shojiro
著者名 Aoki, Tomohiro
著者名 Gu, Songzi
e-Rad_Researcher 90322859 著者名 Ogasawara, Katsuhiko
言語	英語
キーワード	Potential crowdedness index
	Inverted two step floating catchment area method
	Mechanical thrombectomy
	Cerebral infarction
発行日	2022-09
出版者	Elsevier
収録物名	Journal of stroke and cerebrovascular diseases
巻(号)	31(9)
ページ	106625
抄録	Objectives: This study aimed to evaluate a stroke medical delivery system based on population coverage and the potential crowdedness index (PCI) of mechanical thrombectomy and investigate the relationship between PCI and cerebral infarction mortality in Japan. Materials and methods: This cross-sectional study defined 662 facilities and 1605 neurointerventionalists as supply, population aged 55 years or older as demand, and set the reachable area for demand as 120 min in driving time. Multiple regression analysis adjusted for spatial autocorrelation was used to exam-ine the relationship between PCI and cerebral infarction mortality. Results: In the 2020 data, 99% of the population aged 55 years or older had access to mechanical thrombectomy (<= 120 min), and the PCI ranged from 5876 to 129838, with a median of 30426. From 2020 to 2035, the PCI is estimated to increase (30426 to 32510), decreasing after 2035 (32510 to 29469). The PCI distribution exhibited geographical heterogeneity. High PCI values emerged in eastern Japan. According to regression analysis, the increase in PCI by 1% led to an increase of 0.13% in standardized mor-tality ratio of cerebral infarction in men. However, PCI did not significantly corre-late with cerebral infarction mortality in women. Conclusions: PCI for hospitals based on supply and demand was geographically heterogeneous in Japan. Optimi-zation of PCI contributes equalization of mechanical thrombectomy provision sys-tem and may improve cerebral infarction mortality.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
権利情報	© 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
PISSN	1052-3057
EISSN	1532-8511
関連情報	PMID 35803122
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.jstrokecerebrovasdis.2022.106625