著者

Yoshihiro Kokubo Makoto Watanabe Aya Higashiyama Yoko M Nakao Kengo Kusano Yoshihiro Miyamoto

出版者

日本循環器学会

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-17-0277, (Released:2017-05-25)

参考文献数

50

被引用文献数

79

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Background:An atrial fibrillation (AF) risk score for a non-Western general population has not been established.Methods and Results:A total of 6,898 participants (30–79 years old) initially free of AF have been prospectively followed for incident AF since 1989. AF was diagnosed when AF or atrial flutter was present on ECG at a biannual health examination; was indicated as a current illness; or was in the medical records during follow-up. Cox proportional hazard ratios were analyzed after adjusting for cardiovascular risk factors at baseline. During the 95,180 person-years of follow-up, 311 incident AF events occurred. We developed a scoring system for each risk factor as follows: 0/−5, 3/0, 7/5, and 9/9 points for men/women in their 30 s–40 s, 50 s, 60 s, and 70 s, respectively; 2 points for systolic hypertension, overweight, excessive drinking, or coronary artery disease; 1 point for current smoking; −1 point for moderate non-high-density lipoprotein-cholesterol; 4 points for arrhythmia; and 8, 6, and 2 points for subjects with cardiac murmur in their 30 s–40 s, 50 s, and 60 s, respectively (C-statistic 0.749; 95% confidence interval, 0.724−0.774). Individuals with score ≤2, 10–11, or ≥16 points had, respectively, ≤1%, 9%, and 27% observed probability of developing AF in 10 years.Conclusions:We developed a 10-year risk score for incident AF using traditional risk factors that are easily obtained in routine outpatient clinics/health examinations without ECG.

著者

Satomi Ishihara Shinya Hiramitsu Koshiro Kanaoka Mizuri Taki Hitoshi Nakagawa Tomoya Ueda Ayako Seno Taku Nishida Kenji Onoue Tsunenari Soeda Tomohito Ohtani Makoto Watanabe Rika Kawakami Yasushi Sakata Kazuomi Kario Yoshihiko Saito

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-22-0032, (Released:2022-05-25)

参考文献数

33

被引用文献数

4

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Background: Although B-type natriuretic peptide (BNP) and N-terminal (NT)-proBNP are commonly used markers of heart failure, a simple conversion formula between these peptides has not yet been developed for clinical use.Methods and Results: A total of 9,394 samples were obtained from Nara Medical University, Jichi Medical University, and Osaka University. We randomly selected 70% for a derivation set to investigate a conversion formula from BNP to NT-proBNP using estimated glomerular filtration rate (eGFR) and body mass index (BMI); the remaining 30% was used as the internal validation set and we used a cohort study from Nara Medical University as an external validation set. Multivariate linear regression analysis revealed a new conversion formula: log NT-proBNP = 1.21 + 1.03 × log BNP − 0.009 × BMI − 0.007 × eGFR (r2=0.900, P<0.0001). The correlation coefficients between the actual and converted values of log NT-proBNP in the internal and external validation sets were 0.942 (P<0.0001) and 0.891 (P<0.0001), respectively. We applied this formula to samples obtained from patients administered with sacubitril/valsartan. After treatment initiation, NT-proBNP levels decreased and actual BNP levels increased. However, the calculated BNP levels decreased roughly parallel to the NT-proBNP levels.Conclusions: This new and simple conversion formula of BNP and NT-proBNP with eGFR and BMI is potentially useful in clinical practice.

著者

Kaeko Hirai Rika Kawakami Maki Nogi Satomi Ishihara Yukihiro Hashimoto Yasuki Nakada Hitoshi Nakagawa Tomoya Ueda Taku Nishida Kenji Onoue Tsunenari Soeda Satoshi Okayama Makoto Watanabe Hiroyuki Okura Yoshihiko Saito

出版者

The Japanese Circulation Society

雑誌

Circulation Reports (ISSN:24340790)

巻号頁・発行日

vol.3, no.7, pp.388-395, 2021-07-09 (Released:2021-07-09)

参考文献数

28

被引用文献数

1

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Background:Atrial fibrillation (AF) and mitral regurgitation (MR) are frequently combined in patients with heart failure (HF). However, the effect of AF on the prognosis of patients with HF and MR remains unknown.Methods and Results:We studied 867 patients (mean age 73 years; 42.7% female) with acute decompensated HF (ADHF) in the NARA-HF registry. Patients were divided into 4 groups based on the presence or absence of AF and MR at discharge. Patients with severe MR were excluded. The primary endpoint was the composite of cardiovascular (CV) death and HF-related readmission. During the median follow-up of 621 days, 398 patients (45.9%) reached the primary endpoint. In patients with MR, AF was associated with a higher incidence of the primary endpoint regardless of left ventricular function; however, in patients without MR, AF was not associated with CV events. Cox multivariate analyses showed that the incidence of CV events was significantly higher in patients with AF and MR than in patients with MR but without AF (hazard ratio 1.381, P=0.036). Similar findings were obtained in subgroup analysis of patients with AF and only mild MR.Conclusions:The present study demonstrated that AF is associated with poor prognosis in patients with ADHF with mild to moderate MR, but not in those without MR.

著者

Koshiro Kanaoka Tsunenari Soeda Satoshi Terasaki Yuichi Nishioka Tomoya Myojin Shinichiro Kubo Katsuki Okada Tatsuya Noda Makoto Watanabe Rika Kawakami Yasushi Sakata Tomoaki Imamura Yoshihiko Saito

出版者

The Japanese Circulation Society

雑誌

Circulation Reports (ISSN:24340790)

巻号頁・発行日

vol.3, no.3, pp.122-130, 2021-03-10 (Released:2021-03-10)

参考文献数

25

被引用文献数

15

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Background:Although cardiac rehabilitation (CR) has been reported to be associated with better clinical outcomes in patients with cardiovascular diseases, there are few nationwide studies about CR participation by patients with coronary artery disease in Japan.Methods and Results:We performed a nationwide retrospective cohort study using the National Database of Health Insurance Claims and Specific Health Checkups of Japan between April 2014 and March 2018. Patients were divided into 2 groups (acute coronary syndrome [ACS] and stable coronary artery disease [sCAD]), and the rates of participation in in- and outpatient CR after percutaneous coronary intervention (PCI) were investigated. Propensity score-matched analysis was performed and the association between outpatient CR participation and all-cause mortality 3 months after PCI was examined. Overall, 616,664 patients (ACS, n=202,853; sCAD, n=413,811) were analyzed. The participation rates of CR increased annually. The participation rate was higher for inpatient than outpatient CR in both the ACS (52% vs. 9%, respectively) and sCAD (15% vs. 3%, respectively) groups. Prognosis was better for patients with than without outpatient CR in both the ACS (hazard ratio [HR] 0.52; 95% confidence interval [CI] 0.47–0.59) and sCAD (HR 0.72; 95% CI 0.65–0.80) groups.Conclusions:Outpatient CR was associated with a better prognosis in patients with ACS or sCAD. The participation rates of outpatient CR following PCI were extremely low in Japan.

著者

Michikazu Nakai Makoto Watanabe Yoshihiro Kokubo Kunihiro Nishimura Aya Higashiyama Misa Takegami Yoko M Nakao Tomonori Okamura Yoshihiro Miyamoto

出版者

Japan Atherosclerosis Society

雑誌

Journal of Atherosclerosis and Thrombosis (ISSN:13403478)

巻号頁・発行日

pp.48843, (Released:2020-02-06)

参考文献数

41

被引用文献数

29

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Aim: To construct a risk prediction model for cardiovascular disease (CVD) based on the Suita study, an urban Japanese cohort study, and compare its accuracy against the Framingham CVD risk score (FRS) model. Methods: After excluding participants with missing data or those who lost to follow-up, this study consisted of 3,080 men and 3,470 women participants aged 30–79 years without CVD at baseline in 1989–1999. The main outcome of this study was incidence of CVD, defined as the incidence of stroke or coronary heart disease. Multivariable Cox proportional hazards models with stepwise selection were used to develop the prediction model. To assess model performance, concordance statistics (C-statistics) and their 95% confidence intervals (CIs) were calculated using a bootstrap procedure. A calibration test was also conducted. Results: During a median follow-up period of 16.9 years, 351 men and 241 women developed CVD. We formulated risk models with and without electrocardiogram (ECG) data that included age, sex, systolic blood pressure, diastolic blood pressure, high-density lipoprotein cholesterol, non-high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, diabetes mellitus, smoking, and urinary protein as risk factors. The C-statistics of the Suita CVD risk models with ECG data (0.782; 95% CI, 0.766–0.799) and without ECG data (0.781; 95% CI, 0.765–0.797) were significantly higher than that of the FRS model (0.768; 95% CI, 0.750–0.785). Conclusions: The Suita CVD risk model is feasible to use and improves predictability of the incidence of CVD relative to the FRS model in Japan.

著者

Makoto Watanabe Kazutaka Aonuma Toyoaki Murohara Yasuo Okumura Takeshi Morimoto Sadanori Okada Sunao Nakamura Shiro Uemura Koichiro Kuwahara Tadateru Takayama Naofumi Doi Tamio Nakajima Manabu Horii Kenichi Ishigami Kazumiki Nomoto Daisuke Abe Koji Oiwa Kentaro Tanaka Terumasa Koyama Akira Sato Tomoya Ueda Tsunenari Soeda Yoshihiko Saito PREVENT CINC-J Investigators

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-21-0869, (Released:2022-04-22)

参考文献数

37

被引用文献数

2

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Background: Previous studies have reported that high-dose strong statin therapy reduces the incidence of contrast-induced nephropathy (CIN) in statin naïve patients; however, the efficacy of high-dose strong statins for preventing CIN in real-world clinical practice remains unclear. The aim of this study was to evaluate the efficacy of strong statin therapy in addition to fluid hydration for preventing CIN after cardiovascular catheterization.Methods and Results: This prospective, multicenter, randomized controlled trial included 420 patients with chronic kidney disease who underwent cardiovascular catheterization. They were assigned to receive high-dose pitavastatin (4 mg/day × 4 days) on the day before and of the procedure and 2 days after the procedure (Statin group, n=213) or no pitavastatin (Control group, n=207). Isotonic saline hydration combined with a single bolus of sodium bicarbonate (20 mEq) was scheduled for administration to all patients. In the control group, statin therapy was continued at the same dose as that before randomization. CIN was defined as a ≥0.5 mg/dL increase in serum creatinine or ≥25% above baseline at 48 h after contrast exposure. Before randomization, 83% of study participants were receiving statin treatment. The statin group had a higher incidence of CIN than the control group (3.0% vs. 0%, P=0.01). The 12-month rate of major adverse cardiovascular events was similar between the 2 groups.Conclusions: High-dose pitavastatin increases the incidence of CIN in this study population.

著者

Kenji Onoue Hitoshi Nakagawa Ayaka Keshi Junichi Sugiura Akihiko Okamura Koshiro Kanaoka Atsushi Kyodo Satoshi Terasaki Takuya Nakamura Hiroki Yano Kazutaka Nogi Satomi Ishihara Yukihiro Hashimoto Tomoya Ueda Ayako Seno Taku Nishida Tsunenari Soeda Makoto Watanabe Rika Kawakami Yoshihiko Saito

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-21-0735, (Released:2021-10-06)

参考文献数

9

被引用文献数

1

著者

Ayako Kurihara Tomonori Okamura Daisuke Sugiyama Aya Higashiyama Makoto Watanabe Nagako Okuda Aya Kadota Naoko Miyagawa Akira Fujiyoshi Katsushi Yoshita Takayoshi Ohkubo Akira Okayama Katsuyuki Miura Hirotsugu Ueshima for the NIPPON DATA90 Research Group

出版者

Japan Atherosclerosis Society

雑誌

Journal of Atherosclerosis and Thrombosis (ISSN:13403478)

巻号頁・発行日

pp.44172, (Released:2018-08-09)

参考文献数

36

被引用文献数

18

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Aim: To examine the relationship between the intake of dietary vegetable protein and CVD mortality in a 15-year follow-up study of a representative sample of the Japanese population.Methods: A total of 7,744 participants aged 30 years or older (3,224 males and 4,520 females) who were free of CVD at baseline were included in this analysis. Vegetable protein intake (% energy) was assessed using a three-day semi-weighed dietary record at baseline. Multivariable-adjusted hazard ratios (HRs) were calculated using Cox's proportional hazards model after adjusting for confounding factors.Results: The total person-years studied were 107,988 with a mean follow-up period of 13.9 years. There were 1,213 deaths during the follow-up period, among which 354 (29.2%) were due to CVD. Vegetable protein intake was associated inversely with CVD and cerebral hemorrhage mortality, with the HRs for a 1% energy increment in vegetable protein intake being 0.86 (95% CI, 0.75–0.99) and 0.58 (95% CI, 0.35–0.95), respectively. In the subgroup analysis of participants with or without hypertension, the inverse association between vegetable protein intake and CVD mortality was more evident in the nonhypertensive group, with the HRs for CVD and stroke being 0.68 (95% CI, 0.50–0.94) and 0.50 (95% CI, 0.30–0.84), respectively.Conclusions: Vegetable protein intake may prevent future CVD, particularly in nonhypertensive subjects in the Japanese population. However, further studies are necessary to examine the biological mechanisms of this effect.

著者

Kunihiro Nishimura Tomonori Okamura Makoto Watanabe Michikazu Nakai Misa Takegami Aya Higashiyama Yoshihiro Kokubo Akira Okayama Yoshihiro Miyamoto

出版者

Japan Atherosclerosis Society

雑誌

Journal of Atherosclerosis and Thrombosis (ISSN:13403478)

巻号頁・発行日

vol.21, no.8, pp.784-798, 2014-08-26 (Released:2014-08-26)

参考文献数

57

被引用文献数

132 146

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Aim: The Framingham risk score (FRS) is one of the standard tools used to predict the incidence of coronary heart disease (CHD). No previous study has investigated its efficacy for a Japanese population cohort. The purpose of this study was to develop new coronary prediction algorithms for the Japanese population in the manner of the FRS, and to compare them with the original FRS. Methods: Our coronary prediction algorithms for Japanese were based on a large population-based cohort study (Suita study). The study population comprised 5,521 healthy Japanese. They were followed-up for 11.8 years on average, and 213 cases of CHD were observed. Multiple Cox proportional hazard model by stepwise selection was used to construct the prediction model. Results: Our coronary prediction algorithms for Japanese patients were based on a large populationbased cohort study (the Suita study). A multiple Cox proportional hazard model by stepwise selection was used to construct the prediction model. The C-statistics showed that the new model had better accuracy than the original and recalibrated Framingham scores. The net reclassification improvement (NRI) by the Suita score with the inclusion of CKD was 41.2% (P<0.001) compared with the original FRS. The recalibration of the FRS slightly improved the efficiency of the prediction, but it was still worse than the Suita score with the CKD model. The calibration analysis suggested that the original FRS and the recalibrated FRS overestimated the risk of CHD in the Japanese population. The Suita score with CKD more accurately predicted the risk of CHD. Conclusion: The FRS and recalibrated FRS overestimated the 10-year risk of CHD for the Japanese population. A predictive score including CKD as a coronary risk factor for the Japanese population was more accurate for predicting CHD than the original Framingham risk scores in terms of the C-statics and NRI.

著者

Nobunaga Okada Tasuku Matsuyama Sachiko Morita Naoki Ehara Nobuhiro Miyamae Yohei Okada Takaaki Jo Yasuyuki Sumida Makoto Watanabe Masahiro Nozawa Ayumu Tsuruoka Yoshihiro Fujimoto Yoshiki Okumura Kunio Hamanaka Tetsuhisa Kitamura Kei Nishiyama Bon Ohta

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.84, no.3, pp.445-455, 2020-02-25 (Released:2020-02-25)

参考文献数

21

被引用文献数

2

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Background: The Osborn wave (OW) is often observed in hypothermic patients; however, whether OW in hypothermic patients is related to the development of fatal ventricular arrhythmia, including ventricular fibrillation (VF) and pulseless ventricular tachycardia (VT), remains undetermined. This study aimed to estimate the association between OW and the incidence of fatal ventricular arrhythmias.Methods and Results: This retrospective study used the Japanese Accidental Hypothermia Network registry database and included 572 hypothermic patients. Patients were divided into the OW group (those with OW) and non-OW group (those without OW). The relationship between the development of fatal arrhythmias and presence of OW was assessed using the chi-squared test. All patients who developed VF/VT (n=10) had OW on electrocardiogram upon hospital arrival. The presence of OW had a sensitivity of 100%, specificity of 47.8%, positive predictive value of 4.0%, and negative predictive value of 100% for VF/VT development. The in-hospital mortality rate was 22.3% in the OW group and 21.2% in the non-OW group (P=0.781).Conclusions: OW was observed in all hypothermic patients with VF/VT. The occurrence of ventricular arrhythmias is highly unlikely in the absence of OW on the electrocardiogram. Although the presence of OW might be used to predict these fatal arrhythmias in hypothermic patients, there was no association between the presence of OW and in-hospital mortality.

著者

Satoshi Minamoto Takuya Kadohira Kaita Ito Makoto Watanabe

出版者

The Japan Institute of Metals and Materials

雑誌

MATERIALS TRANSACTIONS (ISSN:13459678)

巻号頁・発行日

vol.61, no.11, pp.2067-2071, 2020-11-01 (Released:2020-10-25)

参考文献数

14

被引用文献数

17

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The concept of the Materials Integration (MI) has been proposed as a framework to evaluate the performance of structural materials based on the PSPP (Process, Structure, Property, Performance) linkage. In order to solve direct problems for structural materials with complex input and output, this system designs and executes a workflow that enables continuous computation while focusing on data coordination and aggregation, and aggregates data.In the second phase of our project, we will develop an Application Programming Interface (API) to drive the MI-System from external programs so that the MI-System can be used in combination with various algorithms used to solve inverse problems, such as optimization and Bayesian statistical algorithms. In addition, we aim to solve the inverse problem systematically and efficiently by developing a mechanism to effectively utilize the computational resources distributed in various places and to handle large scale computations. This Paper was Originally Published in Japanese in Materia Japan 58 (2019) 511–514.

著者

Takamasa Komiyama Takashi Ohi Yasutake Tomata Fumiya Tanji Ichiro Tsuji Makoto Watanabe Yoshinori Hattori

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20180203, (Released:2019-01-26)

参考文献数

39

被引用文献数

15

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Background: A growing number of epidemiology studies have shown that poor oral health is associated with an increased incidence of functional disability. However, there are few studies in which the confounding bias is adjusted appropriately. In this study, it was examined whether dental status is associated with functional disability in elderly Japanese using a 13-year prospective cohort study after elimination of confounding factors with propensity score matching.Methods: Participants were community-dwelling Japanese aged 70 years or older who lived in the Tsurugaya district of Sendai (n = 838). The number of remaining teeth (over 20 teeth/0-19 teeth) was defined as the exposure variable. The outcome was the incidence of functional disability, defined as the first certification of long-term care insurance (LTCI) in Japan. The variables that were used to determine propensity score matching were age, sex, body mass index (BMI), medical history (stroke, hypertension, myocardial infarction, cancer, and diabetes), smoking, alcohol consumption, educational attainment, depression symptoms, cognitive impairment, physical function, social support, and marital status.Results: As a result of the propensity score matching, 574 participants were selected. Participants with 0-19 teeth were more likely to develop functional disability than those with 20 or more teeth (hazard ratio, 1.33; 95% confidence interval, 1.01-1.75).Conclusions: In this prospective cohort study targeting community-dwelling older adults in Japan, less than 20 teeth was confirmed to be an independent risk factor for functional disability even after conducting propensity score matching. This study supports previous publications showing that oral health is associated with functional disability.

著者

Satomi Ishihara Rika Kawakami Maki Nogi Kaeko Hirai Yukihiro Hashimoto Yasuki Nakada Hitoshi Nakagawa Tomoya Ueda Taku Nishida Kenji Onoue Tsunenari Soeda Satoshi Okayama Makoto Watanabe Yoshihiko Saito

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-19-0620, (Released:2019-12-26)

参考文献数

30

被引用文献数

8

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Background:Countermeasure development for early rehospitalization for heart failure (re-HHF) is an urgent and important issue in Western countries and Japan.Methods and Results:Of 1,074 consecutive NARA-HF study participants with acute decompensated HF admitted to hospital as an emergency between January 2007 and December 2016, we excluded 291 without follow-up data, who died in hospital, or who had previous HF-related hospitalizations, leaving 783 in the analysis. During the median follow-up period of 895 days, 241 patients were re-admitted for HF. The incidence of re-HHF was the highest within the first 30 days of discharge (3.3% [26 patients]) and remained high until 90 days, after which it decreased sharply. Within 90 days of discharge, 63 (8.0%) patients were re-admitted. Kaplan-Meier analysis revealed that patients with 90-day re-HHF had worse prognoses than those without 90-day re-HHF in terms of all-cause death (hazard ratio [HR] 2.321, 95% confidence interval [CI] 1.654–3.174; P<0.001) and cardiovascular death (HR 3.396, 95% CI 2.153–5.145; P<0.001). Multivariate analysis indicated that only male sex was an independent predictor of 90-day re-HHF.Conclusions:The incidence of early re-HHF was lower in Japan than in Western countries. Its predictors are not related to the clinical factors of HF, indicating that a new comprehensive approach might be needed to prevent early re-HHF.

著者

Yasuki Nakada Rika Kawakami Shouji Matsushima Tomomi Ide Koshiro Kanaoka Tomoya Ueda Satomi Ishihara Taku Nishida Kenji Onoue Tsunenari Soeda Satoshi Okayama Makoto Watanabe Hiroyuki Okura Miyuki Tsuchihashi-Makaya Hiroyuki Tsutsui Yoshihiko Saito

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.83, no.5, pp.1019-1024, 2019-04-25 (Released:2019-04-25)

参考文献数

22

被引用文献数

8 13

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Background: Prognosis after acute decompensated heart failure (ADHF) is poor. An appropriate risk score that would allow for improved care and treatment of ADHF patients after discharge, however, is lacking. Methods and Results: We used 2 HF cohorts, the NARA-HF study and JCARE-CARD, as derivation and validation cohorts, respectively. The primary endpoint was all-cause death during the 2-year follow-up, excluding in-hospital death. Age, hemoglobin (Hb), and brain natriuretic peptide (BNP) at discharge were identified as independent risk factors. We determined 3 categorizations on the basis of these parameters, termed A2B score: age (<65 years, 0; 65–74 years, 1; ≥75 years, 2), anemia (Hb <10 g/dL, 2; 10–11.9 g/dL, 1; ≥12 g/dL, 0) and BNP (<200 pg/mL, 0; 200–499 pg/mL, 1; ≥500 pg/mL, 2). We divided patients into 4 groups according to A2B score (extremely low, 0; low, 1–2; medium, 3–4; high, 5–6). For the extremely low-risk group, the 2-year survival rate was 97.8%, compared with 84.5%, 66.1%, and 45.2% for the low-, medium-, and high-risk groups, respectively. Using the JCARE-CARD as a validation model, for the extremely low-risk group, the 2-year survival was 95.4%, compared with 90.2%, 75.0%, and 55.6% for the low-, medium-, and high-risk groups, respectively. Conclusions: The user-friendly A2B score is useful for estimating survival rate in ADHF patients at discharge.

著者

Tomoya Ueda Rika Kawakami Manabu Horii Yu Sugawara Takaki Matsumoto Sadanori Okada Taku Nishida Tsunenari Soeda Satoshi Okayama Satoshi Somekawa Yukiji Takeda Makoto Watanabe Hiroyuki Kawata Shiro Uemura Yoshihiko Saito

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.77, no.11, pp.2766-2771, 2013 (Released:2013-10-25)

参考文献数

29

被引用文献数

35 42

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Background: Accumulating evidence suggests that hematopoiesis, especially erythropoiesis, is disturbed in heart failure (HF) for many reasons. Low hemoglobin and red blood cell distribution width have emerged as prognostic indicators of HF independent of classic predictors. The prognostic implication of mean corpuscular volume (MCV) in HF, however, is unknown. In this context, we investigated the relationship between MCV and prognosis of acute decompensated HF (ADHF). Methods and Results: This retrospective cohort study consisted of 458 consecutive patients with ADHF who had emergency admission to hospital. Patients were divided into 2 groups: MCV ≤100fl (non-macrocytic group, n=400); and MCV >100fl (macrocytic group, n=58). The relationship between MCV and all-cause death was tested using Cox proportional hazard models, adjusting for other predictors. Mean patient age was 72.4 years and mean MCV was 93.0±7.1fl. Hemoglobin was significantly lower in the macrocytic group than the non-macrocytic group. During the mean follow-up of 20.8 months, a total of 173 deaths (37.9%) occurred. Kaplan-Meier analysis showed that all-cause death was significantly higher in the macrocytic group (log-rank P<0.0001). Cox proportional hazards analysis indicated that macrocytosis was an independent predictor of all-cause death (hazard ratio, 2.288; 95% confidence interval: 1.390–3.643; P=0.0015) after adjustment in the multivariate model. Conclusions: It is proposed for the first time that MCV is an independent predictor of all-cause death in patients with ADHF.  (Circ J 2013; 77: 2766–2771)

著者

Jiaqi Li Yoshihiro Kokubo Ahmed Arafa Haytham A. Sheerah Makoto Watanabe Yoko M. Nakao Kyoko Honda-Kohmo Rena Kashima Yukie Sakai Emi Watanabe Masayuki Teramoto Tomoharu Dohi Masatoshi Koga

出版者

Japan Atherosclerosis Society

雑誌

Journal of Atherosclerosis and Thrombosis (ISSN:13403478)

巻号頁・発行日

pp.63317, (Released:2022-01-15)

参考文献数

25

被引用文献数

6

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Aims: This study aimed to investigate the association of mild hypertensive retinopathy with cardiovascular disease (CVD) risk. Methods: A total of 7,027 residents aged 30–79 years without a history of CVD participated in the annual health checkups and retinal photography assessments. Retinal microvascular abnormalities were graded using the standard protocols and classified according to the Keith–Wagener–Barker classification. Mild hypertensive retinopathy was defined as grades 1 and 2. Cox proportional hazard model was used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) for total CVD and its subtypes according to the presence and absence of mild hypertensive retinopathy. Results: During a median follow-up of 17 years, 351 incident stroke and 247 coronary heart disease (CHD) cases were diagnosed. After adjustment for traditional cardiovascular risk factors, mild hypertensive retinopathy was positively associated with risk of CVD (multivariable HR=1.24; 95% CI, 1.04–1.49) and stroke (1.28; 1.01–1.62) but not with risk of CHD (1.19; 0.89–1.58). Generalized arteriolar narrowing and enhanced arteriolar wall reflex were positively associated with CVD risk, the multivariable HR (95% CI) was 1.24 (1.00– 1.54)and 1.33 (1.02–1.74), respectively. Moreover, mild hypertensive retinopathy was positively associated with stroke risk in normotensive participants. Conclusion: Mild hypertensive retinopathy was positively associated with CVD and stroke risk in the urban Japanese population. Especially, generalized arteriolar narrowing and enhanced arteriolar wall reflex were positively associated with CVD risk. These findings suggested that retinal photography could be helpful for cardiovascular risk stratification in the primary cardiovascular prevention.

著者

Aya Higashiyama Ichiro Wakabayashi Tomonori Okamura Yoshihiro Kokubo Makoto Watanabe Misa Takegami Kyoko Honda-Kohmo Akira Okayama Yoshihiro Miyamoto

出版者

Japan Atherosclerosis Society

雑誌

Journal of Atherosclerosis and Thrombosis (ISSN:13403478)

巻号頁・発行日

pp.62730, (Released:2021-05-28)

参考文献数

29

被引用文献数

18

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Aim: A prospective cohort study in a Japanese urban general population was performed to investigate whether triglyceride (TG) and its related indices were associated with the risk for the incidence of ischemic cardiovascular disease (CVD) after the adjustment for low-density lipoprotein cholesterol (LDL-C) in Asian community dwellers. Methods: A 15.1-year prospective cohort study was performed in 6,684 Japanese community dwellers aged 30–79 years without a history of CVD and whose fasting TG levels were <400 mg/dL. After adjusting for covariates, including LDL-C, the multivariable-adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) of the deciles (D) of TG and those of 1-standard deviation (SD) increment of log-transformed TG (1-SD of TG) according to LDL-C level (≥ 140 and <140 mg/dL) for ischemic CVD incidence were estimated. The multivariable-adjusted HRs and 95%CIs of the quintiles (Q) of TG, TG/HDL-C, and the cardiometabolic index (CMI) for ischemic CVD were also estimated. Results: In 101,230 person-years, 464 ischemic CVD cases occurred. For D10 of TG, the HR (95%CI) was 1.56 (1.05–2.32), and for 1-SD of TG, it was 1.30 (1.00–1.70) in participants with LDL-C <140 mg/dL and 1.07 (0.77–1.50) in those with LDL-C ≥ 140 mg/dL. For Q5 of the CMI, the multivariable-adjusted HR was higher than those of TG and TG/HDL-C. Conclusions: Fasting TG was an independent predictor for ischemic CVD incidence after adjusting for LDL-C in Japanese community dwellers with TG <400 mg/dL. Among TG, TG/HDL-C, and the CMI, the CMI could be the most powerful predictor for ischemic CVD.

著者

Atsushi Kyodo Makoto Watanabe Akihiko Okamura Saki Iwai Azusa Sakagami Kazutaka Nogi Daisuke Kamon Yukihiro Hashimoto Tomoya Ueda Tsunenari Soeda Hiroyuki Okura Yoshihiko Saito

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-20-0759, (Released:2021-01-27)

参考文献数

33

被引用文献数

4

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Background:The association between unfavorable post-stent optical coherence tomography (OCT) findings and subsequent stent thrombosis (ST) remains unclear. This study investigated the ST-related characteristics of post-stent OCT findings at index percutaneous coronary intervention (PCI).Methods and Results:Fifteen patients with ST onset after OCT-guided PCI (ST group) were retrospectively enrolled. Post-stent OCT findings in the ST group were compared with those in 70 consecutive patients (reference group) without acute coronary syndrome onset for at least 5 years after OCT-guided PCI. The incidence of acute myocardial infarction (AMI) was higher in the ST than reference group (60.0% vs. 17.1%, respectively; P=0.0005). The incidence of incomplete stent apposition (93.3% vs. 55.7%; P=0.0064), irregular protrusion (IP; 93.3% vs. 62.8%; P=0.0214), and thrombus (93.3% vs. 51.4%; P=0.0028) was significantly higher in the ST than reference group. The maximum median (interquartile range) IP arc was significantly larger in the ST than reference group (265° [217°–360°] vs. 128° [81.4°–212°], respectively; P<0.0001). In AMI patients, the incidence of a maximum IP arc >180° was significantly higher in the ST than reference group (100% vs. 58.3%, respectively; P=0.0265).Conclusions:IP with a large arc was a significant feature on post-stent OCT in patients with ST.

著者

Juan Carlos CHACON Hisa MARTINEZ NIMI Makoto WATANABE Kenta ONO Algirdas PASKEVICIUS

出版者

Japanese Society for the Science of Design

雑誌

Journal of the Science of Design (ISSN:24242217)

巻号頁・発行日

vol.3, no.1, pp.1_21-1_26, 2019-03-31 (Released:2019-06-25)

参考文献数

18

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As part of Chiba University's Post Urban Living Innovation program, the present research focuses on a Design Against Crime process with the goal of improving the levels of fear of crime and the general crime situation of a local Mexican urban community. As part of a crime prevention intervention, the prototype of a community-based security system is conceptualized, tested, and evaluated by both community members and criminal offenders in order to provide insight for the further development and future long-term implementation of the proposed system and its various elements.

著者

渡部 誠 Makoto Watanabe

出版者

桜の聖母短期大学

雑誌

桜の聖母短期大学紀要 = BULLETIN OF SAKURA NO SEIBO JUNIOR COLLEGE

巻号頁・発行日

no.43, pp.165-170, 2019-03-31

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The attitudes towards adzuki beans and adzuki bean-based food was analyzed through an online survey targeted at Japanese consumers. 300 samples were collected, and the results were compared with the images of other beans.Compared to soy beans, almonds or walnuts, the healthful image of adzuki beans was not well recognized. In regards to nutritional function, the adzuki bean was underestimated despite its useful nutritional content such as polyphenol, dietary fibers and proteins. The results seem to be affected by the “sweet snack” image of adzuki bean paste, the most popular adzuki bean-based food in Japan.In conclusion, this survey suggests that an innovative adzuki bean-based food, a non-sweet snack for example, may be required in order to raise the healthful image of adzuki beans. Further, the key consumers of such a food could be middle-aged women, who tend to have a stronger interest in healthful food.