基本情報
研究キーワード
4経歴
1-
2009年 - 現在
学歴
2-
- 1987年
-
- 1987年
委員歴
11受賞
12論文
293-
Hypertension research : official journal of the Japanese Society of Hypertension 44(11) 1363-1372 2021年11月Blood pressure (BP) exhibits seasonal variation, with an elevation of daytime BP in winter and an elevation of nighttime BP in summer. The wintertime elevation of daytime BP is largely attributable to cold temperatures. The summertime elevation of nighttime BP is not due mainly to temperature; rather, it is considered to be related to physical discomfort and poor sleep quality due to the summer weather. The winter elevation of daytime BP is likely to be associated with the increased incidence of cardiovascular disease (CVD) events in winter compared to other seasons. The suppression of excess seasonal BP changes, especially the wintertime elevation of daytime BP and the summertime elevation of nighttime BP, would contribute to the prevention of CVD events. Herein, we review the literature on seasonal variations in BP, and we recommend the following measures for suppressing excess seasonal BP changes as part of a regimen to manage hypertension: (1) out-of-office BP monitoring, especially home BP measurements, throughout the year to evaluate seasonal variations in BP; (2) the early titration and tapering of antihypertensive medications before winter and summer; (3) the optimization of environmental factors such as room temperature and housing conditions; and (4) the use of information and communication technology-based medicine to evaluate seasonal variations in BP and provide early therapeutic intervention. Seasonal BP variations are an important treatment target for the prevention of CVD through the management of hypertension, and further research is necessary to clarify these variations.
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Journal of Clinical Hypertension 23(10) 1872-1878 2021年10月1日
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Journal of the American College of Cardiology 78(10) 1028-1038 2021年9月7日
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Hypertension Research 44(9) 1138-1146 2021年9月1日
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Heart and Vessels 36(9) 1275-1282 2021年9月1日
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American journal of hypertension 34(7) 729-736 2021年8月9日BACKGROUND: The incidence of cardiovascular disease (CVD) increases during winter. The risk that elevated home blood pressure (BP) poses for CVD events that occur in each of 4 seasons is unclear. We conducted a post hoc analysis using the dataset from a nationwide cohort, the Japan Morning Surge-Home Blood Pressure (J-HOP) study, to assess the association between home BP and winter-onset CVD events. METHODS: J-HOP participants who had cardiovascular risks conducted morning and evening home BP measurements for a 14-day period and were followed-up for the occurrence of CVD events. RESULTS: We analyzed 4,258 participants (mean age 64.9 years; 47% male; 92% hypertensives) who were followed-up for an average of 6.2 ± 3.8 years (26,295 person-years). We divided the total of 269 CVD events (10.2/1,000 person-years) by the season of onset as follows: 82 in the winter and 187 in the other seasons (spring, summer, and autumn). In the Cox models adjusted for covariates and the season when home BPs were measured at baseline, morning home systolic BP (SBP) was associated with both winter-onset and other season-onset CVD events: hazard ratio (HR) for winter 1.22, 95% confidence interval (CI) 1.06-1.42 per 10 mm Hg; HR for other seasons 1.11, 95% CI 1.00-1.23. Evening home SBP was associated with the other season-onset CVD events (HR 1.20, 95% CI 1.08-1.33 per 10 mm Hg), but not with the winter-onset CVD events. CONCLUSIONS: Our findings indicate that compared with evening home BP, morning home BP might be a superior predictor of winter-onset CVD events.
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Journal of Clinical Hypertension 23(8) 1529-1537 2021年8月1日
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American journal of hypertension 34(6) 609-618 2021年6月22日BACKGROUND: Little is known about seasonal variation in nighttime blood pressure (BP) measured by a home device. In this cross-sectional study, we sought to assess seasonal variation in nighttime home BP using data from the nationwide, practice-based Japan Morning Surge-Home BP (J-HOP) Nocturnal BP study. METHODS: In this study, 2,544 outpatients (mean age 63 years; hypertensives 92%) with cardiovascular risks underwent morning, evening, and nighttime home BP measurements (measured at 2:00, 3:00, and 4:00 am) using validated, automatic, and oscillometric home BP devices. RESULTS: Our analysis showed that nighttime home systolic BP (SBP) was higher in summer than in other seasons (summer, 123.3 ± 14.6 mmHg vs. spring, 120.7 ± 14.8 mmHg; autumn, 121.1 ± 14.8 mmHg; winter, 119.3 ± 14.0 mmHg; all P<0.05). Moreover, we assessed seasonal variation in the prevalence of elevated nighttime home SBP (≥120 mmHg) in patients with non-elevated daytime home SBP (average of morning and evening home SBP <135 mmHg; n = 1,565), i.e., masked nocturnal hypertension, which was highest in summer (summer, 45.6% vs. spring, 27.2%; autumn, 28.8%; winter, 24.9%; all P<0.05). Even in intensively controlled morning home SBP (<125 mmHg), the prevalence of masked nocturnal hypertension was higher in summer (summer, 27.4% vs. spring, 14.2%; autumn, 8.9%; winter, 9.0%; all P<0.05). The urine albumin-creatinine ratio in patients with masked nocturnal hypertension tended to be higher than that in patients with non-elevated both daytime and nighttime SBP throughout each season. CONCLUSIONS: The prevalence of masked nocturnal hypertension was higher in summer than other seasons and the difference proved to be clinically meaningful.
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Journal of the American College of Cardiology 77(23) 2909-2919 2021年6月15日
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Journal of Clinical Hypertension 23(6) 1144-1149 2021年6月1日
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Journal of Clinical Hypertension 23(5) 1085-1088 2021年5月1日
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Clinical Research in Cardiology 110(5) 725-731 2021年5月1日
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American Journal of Hypertension 34(4) 377-382 2021年4月1日
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Journal of Clinical Hypertension 23(4) 860-869 2021年4月1日
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日本循環器学会学術集会抄録集 85回 SS22-3 2021年3月
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日本循環器学会学術集会抄録集 85回 OJ88-1 2021年3月
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Journal of Clinical Hypertension 23(3) 687-691 2021年3月1日
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Journal of Clinical Hypertension 23(3) 665-671 2021年3月1日
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Journal of Clinical Hypertension 23(3) 614-620 2021年3月1日
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Journal of Clinical Hypertension 23(2) 382-388 2021年2月1日
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Journal of Clinical Hypertension 23(2) 301-308 2021年2月1日
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Journal of Clinical Hypertension 23(2) 272-280 2021年2月1日
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Hypertension Research 2021年
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Journal of Clinical Hypertension 23(1) 53-60 2021年1月1日
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Journal of Clinical Hypertension 22(12) 2214-2220 2020年12月1日
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Journal of Clinical Hypertension 22(11) 2137-2140 2020年11月1日
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American Journal of Hypertension 33(9) 860-868 2020年9月10日
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Cardiovascular Revascularization Medicine 21(9) 1108-1112 2020年9月1日
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American journal of hypertension 33(7) 620-628 2020年7月18日BACKGROUND: Although seasonal variation of home blood pressure (BP) has been reported to be higher in winter, seasonal difference in home BP (HBP) and its association with target organ damage (TOD) remains unclear. METHODS: This is a cross-sectional study using the dataset from the Japan Morning Surge-Home Blood Pressure (J-HOP) study to assess seasonal differences in HBP, prevalence of masked hypertension, and association of HBP with TOD. The J-HOP study is a nationwide, multicenter prospective study whose participants with cardiovascular risks underwent morning and evening HBP measurements for a 14-day period in 71 institutions throughout Japan. Urine albumin-creatinine ratio (UACR) and serum-B-type natriuretic peptide (BNP) were obtained at enrollment. RESULTS: Among 4,267 participants (mean age, 64.9 ± 10.9 years; 46.9% male; 91.4% hypertensives), 1,060, 979, 1,224, and 1,004 participants were enrolled in spring, summer, autumn, and winter, respectively. Morning and evening home systolic/diastolic BP levels, and prevalence of masked hypertension (office BP <140/90 mm Hg and HBP ≥135/85 mm Hg) were significantly lower in summer than other seasons after adjustment for covariates. When we assessed the interaction between BP parameters and each season for an association with TOD, we found the association between morning home diastolic BP and each of UACR and BNP was stronger in winter than other seasons (both P for interaction <0.05). CONCLUSIONS: In this study, we revealed that the prevalence of masked hypertension was higher in other seasons than in summer and found a notable association between morning home diastolic BP and TOD in winter.
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Journal of clinical hypertension (Greenwich, Conn.) 22(7) 1208-1215 2020年7月The value of the cardio-ankle vascular index (CAVI) increases with age. All large-scale studies of the CAVI have investigated patients <80 years old. Thus, the clinical characteristics of high CAVI in patients aged 80 or more remain unclear. Therefore, we investigated (1) the CAVI in very elderly patients and (2) the determinants of a high CAVI in high-risk patients, including very elderly patients. The Cardiovascular Prognostic Coupling Study in Japan (Coupling Registry) is a prospective observational study of Japanese outpatients with any cardiovascular risk factors. We enrolled 5109 patients from 30 institutions (average age 68.7 ± 11.4 years, 52.4% males). We investigated the determinants of the CAVI by separating the patients into three groups: 970 middle-aged (<60 years), 3252 elderly (60-79 years), and 887 very elderly (≥80 years) patients. The CAVI values of the males were significantly higher those of the females in all age groups (<60 years: 7.81 ± 1.11 vs. 7.38 ± 0.99, P < .001; 60-79 years: 9.20 ± 1.29 vs. 8.66 ± 1.07, P < .001; ≥80 years: 10.26 ± 1.39 vs. 9.51 ± 1.12, P < .001). In all age groups, the CAVI of the patients with diabetes/glucose tolerance disorder was higher than that of the patients without diabetes/glucose tolerance disorder (<60 years: 7.82 ± 1.22 vs 7.58 ± 1.03, P = .002; 60-79 years: 9.23 ± 1.20 vs 8.78 ± 1.19, P < .001; ≥80 years: 10.04 ± 1.24 vs 9.75 ± 1.32, P = .002). The determinants of the CAVI in these very elderly patients were age, male sex, low BMI, and mean blood pressure. Diabetes/glucose tolerance disorder and glucose were independently associated with the CAVI in the patients aged <60 years and 60-79 years, but not in those aged ≥80 years after adjusting for other covariates.
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JACC: Cardiovascular Interventions 13(12) 1492-1494 2020年6月22日
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Echocardiography 37(6) 928-929 2020年6月1日
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Hypertension 75(6) 1600-1606 2020年6月1日
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American Journal of Hypertension 33(6) 520-527 2020年5月21日
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American Journal of Hypertension 33(5) 430-438 2020年4月29日
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Journal of Clinical Hypertension 22(3) 363-368 2020年3月1日
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Journal of Clinical Hypertension 22(3) 451-456 2020年3月1日
MISC
224-
日本循環器学会学術集会抄録集 88回 PJ122-2 2024年3月
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Hypertension Research 2024年
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Journal of Clinical Hypertension 23(9) 1681-1683 2021年9月1日
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Journal of Clinical Hypertension 23(8) 1526-1528 2021年8月1日
所属学協会
11Works(作品等)
2共同研究・競争的資金等の研究課題
28-
日本学術振興会 科学研究費助成事業 2022年4月 - 2027年3月
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日本学術振興会 科学研究費助成事業 2020年4月 - 2025年3月
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日本学術振興会 科学研究費助成事業 2020年7月 - 2023年3月
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日本学術振興会 科学研究費助成事業 2019年4月 - 2023年3月
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日本学術振興会 科学研究費助成事業 2018年4月 - 2023年3月