Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
Incidence, Management and Short-Term Outcome of Stroke in a General Population of 1.4 Million Japanese ― Shiga Stroke Registry ―
Naoyuki TakashimaHisatomi ArimaYoshikuni KitaTakako FujiiNaomi MiyamatsuMasaru KomoriYoshihisa SugimotoSatoru NagataKatsuyuki MiuraKazuhiko Nozaki
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Article ID: CJ-17-0177

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Abstract

Background:This study determined the current status of the incidence, management, and prognosis of stroke in Japan using a population-based stroke registry.

Methods and Results:Shiga Stroke Registry is an ongoing population-based registry that covers approximately 1.4 million residents of Shiga Prefecture. Cases of acute stroke were identified using standard definitions through surveillance of both all acute-care hospitals with neurology/neurosurgery facilities and death certificates in 2011. A total of 2,956 stroke cases and 2,176 first-ever stroke cases were identified. The age- and sex-adjusted incidence rate for first-ever stroke using the 2013 European Standard Population as standard was per 100,000 person-years: 91.3 for ischemic stroke, 36.4 for intracerebral hemorrhage, and 13.7 for subarachnoid hemorrhage. It was estimated that approximately 220,000 new strokes occurred in 2011 in Japan. Among the 2,956 cases, most stroke patients underwent neuroimaging, 268 received surgical or endovascular treatment, and 2,158 had rehabilitation therapy; 78 patients received intravenous thrombolysis. A total of 1,846 stroke patients had died or were dependent at hospital discharge, and 390 died within 28 days of onset.

Conclusions:Incidence rates of stroke by subtypes were clarified and the total number of new strokes in Japan was estimated. More than half of stroke patients die or become dependent after a stroke. This study re-emphasized the importance of public health measures in reducing the burden of stroke in Japan.

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© 2017 THE JAPANESE CIRCULATION SOCIETY
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