Shinichi Omama

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BACKGROUND The precise time of stroke onset during sleep is difficult to specify, but this has a considerable influence on circadian variations of stroke onset. AIM To investigate circadian variations in situations at stroke onset--that is, in the waking state or during sleep--and their differences among subtypes. METHODS 12,957 cases of first-ever(More)
BACKGROUND AND PURPOSE Little information is available regarding the occurrence of cerebrovascular diseases after tsunamis. This study was performed to determine the influence of the tsunami damage caused by the Great East Japan earthquake on occurrence of cerebrovascular diseases. METHODS Subjects from the coastline and inland areas of Iwate Prefecture(More)
BACKGROUND Using data from a large-scale community-based Japanese population, we attempted to identify factors associated with tooth loss in middle-aged and elderly men. METHODS A total of 8352 men aged 40 to 79 years who lived in the north of the main island of Japan and underwent health checkups were enrolled between 2002 and 2005. Number of teeth was(More)
Growing skull fractures can be a challenging surgical problem facing pediatric neurosurgeons. The goal of this manuscript was to describe an effective surgical method used to treat a growing skull fracture. We present a case study of a 2-month-old boy who fell from his mother’s arms and hit his head on the floor; he underwent X-ray, magnetic resonance (MR),(More)
OBJECTIVE Self-rated health (SRH) is associated with risk for mortality, but its biological basis is poorly understood. We examined the association between SRH and low-grade inflammation in a Japanese general population. METHODS A total of 5142 men and 11,114 women aged 40 to 69years were enrolled. SRH was assessed by a single question and classified into(More)
BACKGROUND Recent studies indicate that, in people with diabetes or hypertension and in the general population, low-grade albuminuria (LGA) below the microalbuminuria threshold is a predictor for incidence of cardiovascular disease (CVD) and mortality. However, it remains unclear whether LGA predicts the risk of CVD incidence and death in nondiabetic and(More)
BACKGROUND AND METHODS There is controversy about the association between mild-to-moderate alcohol consumption and a reduced risk of cardiovascular diseases. The relationships between daily alcohol consumption and the incidence of acute myocardial infarction (MI) or ischemic stroke (IS) were examined in men in a community-based, prospective cohort study (n(More)
Diabetes mellitus (DM) is a strong risk factor for cardiovascular (CV) disease. Plasma B-type natriuretic peptide (BNP) levels are elevated in various types of cardiac diseases. Increased plasma BNP levels have been reported to be associated with CV risk in apparently healthy individuals. However, no studies have yet examined the specific value of plasma(More)
BACKGROUND The reason why coexistence of preserved estimated glomerular filtration rate (eGFR) and albuminuria contributes to a high risk of death and which cause of death increases all-cause mortality have not been elucidated. METHODS A total of 16,759 participants aged 40 to 69 years with normal or mildly reduced eGFR (45-119 ml/min/1.73 m(2)) were(More)
OBJECTIVES The objective of this study was to determine the associations of number of teeth with all-cause mortality and cause-specific mortality among middle-aged and elderly Japanese men. METHODS A total of 7779 men aged 40-79 years who were free from cardiovascular disease (CVD) were followed up prospectively for 5.6 years. Participants were(More)