H Fujiwara

Hyogo Prefectural Amagasaki Hospital, Amagasaki, Hyōgo, Japan

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Publications (716)2890.54 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: Cardiac troponin is widely accepted as a biomarker of myocyte injury in patients with myocardial ischemia. Patients with congestive heart failure are also associated with elevated cardiac troponin and it is a very sensitive prognostic marker. However, the mechanisms of troponin elevation in patients with heart failure are not fully understood. Decompensated state itself is suggested as a factor contributing to elevated cardiac troponin-T. However comparison between invasive hemodynamic parameters and cardiac troponin-T is insufficient. Data were collected from 167 patients in stable, chronic HF, without acute coronary syndrome, recent revascularization, mitral stenoses, hemodialysis, or clinically significant right HF. We evaluated the correlations and 95% confidence intervals (CI) between invasive hemodynamic measurements and serum high-sensitivity (hs) concentrations of cTnT. The serum cTnT concentration was equal to or more than the detection threshold (0.003ng/ml) in all patients. The serum cTnT concentration was equal to or more than the cut-off value of 0.014ng/ml in 46% of patients. By multiple variable analysis, left ventricular (LV) end-diastolic pressure (EDP; adjusted coefficient=0.014; 95% CI 0.0003-0.029; P=0.046) was positively correlated, while hemoglobin (adjusted coefficient=-0.079; 95% CI -0.140 to -0.018; P=0.012), estimated glomerular filtration rate (adjusted coefficient=-0.008; 95% CI -0.013 to -0.003; P=0.004), and LV ejection fraction (EF; adjusted coefficient=-0.011; 95% CI -0.018 to -0.003; P=0.004) were negatively correlated with hs-cTnT concentrations. In patients with stable chronic HF, LVEDP and LVEF correlate with the serum concentrations of hs-cTnT, independently of other correlates of elevated plasma concentrations of hs-cTnT. Copyright © 2014 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved.
    Journal of cardiology. 10/2014;
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    ABSTRACT: Background:In hypertensive patients, left ventricular hypertrophy (LVH) may persist despite satisfactory blood pressure (BP) control. The efficacy of thiazide diuretics in Western countries has been reported, but whether this applies to hypertensive Japanese patients is uncertain.Methods and Results:We randomly assigned 94 patients whose BP was poorly controlled with usual doses of angiotensin-II receptor blockers (ARB), to losartan/hydrochlorothiazide (HCTZ) fixed-dose combination vs. maximum doses of ARB. After 6 months follow-up, decrease in BP, regression of electrocardiographic LVH, and changes in laboratory measurements were examined. Although a similar decrease in BP was observed in both groups, the decrease in LV Sokolow-Lyon voltage, from 34.4±9.2 to 29.4±8.8 mm in the losartan/HCTZ vs. from 29.9±10.2 to 29.1±8.4 mm in the ARB group (P=0.0003), and the decrease in serum B-type natriuretic peptide (BNP) level, from 30.1±28.5 to 26.8±28.0 pg/ml vs. from 23.7±14.8 to 29.8±29.3 pg/ml (P=0.045) were greater in the losartan/HCTZ group. By single variable logistic regression analysis, ∆BNP (P=0.012) and treatment with losartan/HCTZ (P<0.0001) correlated with the regression of LVH. By multiple variable logistic regression analysis, both ∆BNP (P=0.035) and treatment with losartan/HCTZ (P=0.0003) remained significant. No major adverse effects were observed.Conclusions:Greater regression of LVH was safely achieved with losartan/HCTZ in patients whose BP was poorly controlled with an ARB.
    Circulation journal : official journal of the Japanese Circulation Society. 09/2014;
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    ABSTRACT: Recently, a new generation of multi-detector row computed tomography (CT) with 320-detector rows (DR) has become available in the clinical settings. The purpose of the present study was to determine the cutoff values of Hounsfield unit (HU) for discrimination of plaque components by comparing HU of coronary plaques with integrated backscatter intravascular ultrasound (IB-IVUS) serving as a gold standard. Seventy-seven coronary atherosclerotic lesions in 77 patients with angina were visualized by both 320-DR CT (Aquilion One, Toshiba, Japan) and IB-IVUS at the same site. To determine the thresholds for discrimination of plaque components, we compared HU with IB values as a gold standard. Optimal thresholds were determined from receiver operating characteristic (ROC) curves analysis. The HU values of lipid pool (n = 115), fibrosis (n = 93), vessel lumen and calcification (n = 73) were 28 ± 19 HU (range -18 to 69 HU), 98 ± 31 HU (44 to 195 HU), 357 ± 65 HU (227 to 534 HU) and 998 ± 236 HU (366 to 1,489 HU), respectively. The thresholds of 56 HU, 210 HU and 490 HU were the most reliable predictors of lipid pool, fibrosis, vessel lumen and calcification, respectively. Lipid volume measured by 320-DR CT was correlated with that measured by IB-IVUS (r = 0.63, p < 0.05), whereas fibrous volume measured by 320-DR CT was not. Lipid volume measured by 320-DR CT was correlated with that measured by IB-IVUS, whereas fibrous volume was not correlated with that measured by IB-IVUS because manual exclusion of the outside of vessel hindered rigorous discrimination between fibrosis and extravascular components.
    Heart and Vessels 09/2014; · 2.13 Impact Factor
  • International journal of cardiology 03/2014; · 6.18 Impact Factor
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    ABSTRACT: We investigated the effect of restriction of food intake, a potent inducer of autophagy, on postinfarction cardiac remodeling and dysfunction. Myocardial infarction was induced in mice by left coronary artery ligation. At 1 week after infarction, mice were randomly divided into four groups: the control group was fed ad libitum (100%); the food restriction (FR) groups were fed 80%, 60%, or 40% of the mean amount of food consumed by the control mice. After 2 weeks on the respective diets, left ventricular dilatation and hypofunction were apparent in the control group, but both parameters were significantly mitigated in the FR groups, with the 60% FR group showing the strongest therapeutic effect. Cardiomyocyte autophagy was strongly activated in the FR groups, as indicated by up-regulation of microtubule-associated protein 1 light chain 3-II, autophagosome formation, and myocardial ATP content. Chloroquine, an autophagy inhibitor, completely canceled the therapeutic effect of FR. This negative effect was associated with reduced activation of AMP-activated protein kinase and of ULK1 (a homolog of yeast Atg1), both of which were enhanced in hearts from the FR group. In vitro, the AMP-activated protein kinase inhibitor compound C suppressed glucose depletion-induced autophagy in cardiomyocytes, but did not influence activity of chloroquine. Our findings imply that a dietary protocol with FR could be a preventive strategy against postinfarction heart failure.
    American Journal Of Pathology 03/2014; · 4.60 Impact Factor
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    ABSTRACT: Inflammatory bowel disease (IBD) severely affects the quality of life of patients. At present, there is no clinical solution for this condition; therefore, there is a need for innovative therapies for IBD. Hepatocyte growth factor (HGF) exerts various biological activities in various organs. However, a clinically applicable and effective HGF-based therapy for IBD has yet to be developed. In this study, we examined the therapeutic effect of injecting an adenoviral vector encoding the human HGF gene (Ad.HGF) into the hindlimbs of mice with dextran sodium sulfate (DSS)-induced colitis. Plasma levels of circulating human HGF (hHGF) were measured in injected mice. The results showed that weight loss and colon shortening were significantly lower in Ad.HGF-infected mice as compared to control (Ad.LacZ-infected) colitic mice. Additionally, inflammation and crypt scores were significantly reduced in the entire length of the colon, particularly in the distal section. This therapeutic effect was associated with increased cell proliferation and an antiapoptotic effect, as well as a reduction in the number of CD4+ cells and a decreased CD4/CD8 ratio. The levels of inflammatory, as well as Th1 and Th2 cytokines were higher in Ad.HGF-infected mice as compared to the control colitic mice. Thus, systemically circulating hHGF protein, produced by an adenovirally transduced hHGF gene introduced at distal sites in the limbs, significantly ameliorated DSS-induced colitis by promoting cell proliferation (i.e., regeneration), preventing apoptosis, and immunomodulation. Owing to its clinical feasibility and potent therapeutic effects, this method may be developed into a clinical therapy for treating IBD.
    International Journal of Molecular Medicine 03/2014; · 1.96 Impact Factor
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    ABSTRACT: Late adverse events such as very late stent thrombosis (VLST) or late target-lesion revascularization (TLR) after first-generation sirolimus-eluting stents (SES) implantation have not been yet fully characterized at long term in comparison with those after bare-metal stent (BMS) implantation. Among 13 058 consecutive patients undergoing first percutaneous coronary intervention in the Coronary REvascularization Demonstrating Outcome study-Kyoto registry Cohort-2, 5078 patients were treated with SES only, and 5392 patients were treated with BMS only. During 7-year follow-up, VLST and late TLR beyond 1 year after SES implantation occurred constantly and without attenuation at 0.24% per year and at 2.0% per year, respectively. Cumulative 7-year incidence of VLST was significantly higher in the SES group than that in the BMS group (1.43% versus 0.68%, P<0.0001). However, there was no excess of all-cause death beyond 1 year in the SES group as compared with that in the BMS group (20.8% versus 19.6%, P=0.91). Cumulative incidences of late TLR (both overall and clinically driven) were also significantly higher in the SES group than in the BMS group (12.0% versus 4.1%, P<0.0001 and 8.5% versus 2.6%, P<0.0001, respectively), leading to late catch-up of the SES group to the BMS group regarding TLR through the entire 7-year follow-up (18.8% versus 25.2%, and 10.6% versus 10.2%, respectively). Clinical presentation as acute coronary syndrome was more common at the time of late SES TLR compared with early SES TLR (21.2% and 10.0%). Late catch-up phenomenon regarding stent thrombosis and TLR was significantly more pronounced with SES than that with BMS. This limitation should remain the target for improvements of DES technology.
    Circulation Cardiovascular Interventions 02/2014; · 6.54 Impact Factor
  • International journal of cardiology 01/2014; · 6.18 Impact Factor
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    ABSTRACT: Background Hyogo is the second prefecture, after Kanagawa, to enact a smoking ban in public places in Japan. The effect of this smoking ban on acute coronary syndrome (ACS) has not been evaluated. Purpose Changes in the annual number of ACS hospital cases in Hyogo Prefecture, before and after the enactment of the prefectural legislative ban on smoking in public places, are to be compared with those in Gifu Prefecture, where there is no smoking-ban legislation. Methods Consecutive Hyogo residents with ACS, admitted to 33 major hospitals in the Hanshin-Awaji-Kobe district, which covers 56% of the population, during the 12 months before implementation of the legislation (April 2012 through March 2013) and during the same 24 months thereafter (April 2013 through March 2015) will be enrolled. Consecutive patients with ACS, who are Gifu residents, treated at the 20 major hospitals in Gifu Prefecture will be enrolled as geographical controls. The primary endpoint is the change in number of ACS admissions from April 2012 through March 2015, considering the periods before and after the smoking-ban legislation in Hyogo prefecture. Conclusion Our study has certain strengths: (1) This is the first large Japanese study of ACS registry with smoking-ban legislation. (2) Major hospitals in the Hanshin-Awaji-Kobe district are included. (3) The data will cover 3 years including 1 year before legislation enactment. (4) The data will be compared with those of Gifu Prefecture, where smoking-ban legislation will not be enacted. (5) The very large database makes possible analysis of subgroups based on age and gender.
    Journal of Cardiology 01/2014; 63(2):165–168. · 2.30 Impact Factor
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    ABSTRACT: It has been suggested that apoptosis may be responsible for a significant amount of the cardiomyocyte death that contributes to the development and progression of heart failure. However, studies of actual heart disease and in vivo experimental models have provided little or no direct morphological evidence that cardiomyocyte apoptosis occurs at any stage of heart failure, despite the availability of much indirect evidence that includes detection of DNA fragmentation and apoptosis-related factors. The Nomenclature Committee on Cell Death (NCCD), an international organization consulting on cell death, proposed an international standard for the definition and classification of cell death, in which cell death was defined based purely on morphological criteria. This is because there is no clear-cut equivalence between ultrastructural alterations and biochemical cell death characteristics. This review will first introduce the NCCD definition and classification of cell death and, based on this classification, survey the available data from both animals and humans to critically assess the impact of cardiomyocyte apoptosis during the progression of heart failure of various etiologies. Particularly noteworthy is the wide variation in the reported rates of apoptosis - e.g., the difference was >1000-fold in one heart failure model - but even more importantly, no morphological (ultrastructural) data has ever been shown definitively demonstrating apoptosis of a cardiomyocyte. We conclude from our survey that even the existence of cardiomyocyte apoptosis in heart failure remains controversial.
    International journal of cardiology 02/2013; · 6.18 Impact Factor
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    ABSTRACT: We investigated the effect of cardiac-targeting erythropoietin(EPO)-encapsulated liposomes with Sialyl Lewis X (SLX) on myocardial infarct (MI) size, left ventricular (LV) remodeling and function, and its molecular mechanism for repairing infarcted myocardium. In rabbits, myocardial infarction (MI) was induced by 30 min coronary occlusion followed by reperfusion. EPO-encapsulated liposomes with SLX (L-EPO group), EPO-encapsulated liposomes without SLX (L-EPO without SLX group), liposomes with SLX without EPO (L group), or saline (Saline group) were intravenously administered immediately after MI. The MI size, the number of microvessels were assessed on 14 days after MI. Prosurvival proteins and signals were assessed by western blot analysis on 2 and 14 days after MI. Confocal microscopy and electron microscopy showed the specific accumulation of liposomes with SLX in the infarcted myocardium. The MI and cardiac fibrosis areas were significantly smaller in the L-EPO group than the other groups. The LV function and remodeling were improved in the L-EPO group. The number of CD31-positive microvessels was significantly greater in the L-EPO group than in the other groups. Higher expressions of EPO receptors, phosphorylated (p)-Akt, p-ERK, p-Stat3, VEGF, Bcl-2 and pro-MMP-1 were observed in the infarct area in the L-EPO group than in the other groups. The EPO-encapsulated liposomes with SLX selectively accumulated in the infarct area and reduced MI size and improved LV remodeling and function through activation of prosurvival signals and by exerting antifibrotic and angiogenic effects. EPO-encapsulated liposomes with SLX may be a promising strategy for active targeting treatment of acute MI.
    AJP Heart and Circulatory Physiology 02/2013; · 4.01 Impact Factor
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    ABSTRACT: BACKGROUND: -Urine albumin excretion (UAE) is an important predictor of adverse cardiovascular events in various populations. Its correlates in patients with acute heart failure (HF) have not been described. METHODS AND RESULTS: -This prospective, observational study included 115 patients presenting with acute HF. The urine albumin / creatinine ratio (UACR) was measured from spot urine samples collected on days 1 and 7 of hospitalization. Median UACR decreased from 83, to 22 mg/gCr on days 1 and 7 respectively (P < 0.0001). The proportion of patients with normoalbuminuria (UACR <30 mg/gCr) increased from 31% on day 1 to 60% on day 7, while the proportion with microalbuminuria (UACR between 30 and 299 mg/gCr) and macroalbuminuria (UACR ≥300 mg/gCr) decreased from, respectively, 42% and 27% on day 1, to 30% and 10% on day 7 (P < 0.0001). These changes in UACR were correlated with changes in serum bilirubin and N-terminal pro b-type natriuretic peptide (NT-pro BNP) concentrations (correlation coefficients 1.087 and 0.384, respectively, 95% confidence intervals 0.394-1.781 and 0.087-0.680, respectively, and P=0.003 and 0.013, respectively) though were not correlated with change in estimated glomerular filtration rate. CONCLUSIONS: -In this sample of patients presenting with acute HF, UAE was often increased upon admission to the hospital and decreased significantly within 7 days of treatment. This decrease was correlated with serum NT-pro BNP and bilirubin concentrations, though neither with baseline nor with changes in indices of renal function.
    Circulation Heart Failure 02/2013; · 6.68 Impact Factor
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    ABSTRACT: We investigated the effect of resveratrol, a popular natural polyphenolic compound with antioxidant and proautophagic actions, on postinfarction heart failure. Myocardial infarction was induced in mice by left coronary artery ligation. Four weeks postinfarction, when heart failure was established, the surviving mice were started on 2-week treatments with one of the following: vehicle, low- or high-dose resveratrol (5 or 50 mg/kg/day, respectively), chloroquine (an autophagy inhibitor), or high-dose resveratrol plus chloroquine. High-dose resveratrol partially reversed left ventricular dilation (reverse remodeling) and significantly improved cardiac function. Autophagy was augmented in those hearts, as indicated by up-regulation of myocardial microtubule-associated protein-1 light chain 3-II, ATP content, and autophagic vacuoles. The activities of AMP-activated protein kinase and silent information regulator-1 were enhanced in hearts treated with resveratrol, whereas Akt activity and manganese superoxide dismutase expression were unchanged, and the activities of mammalian target of rapamycin and p70 S6 kinase were suppressed. Chloroquine elicited opposite results, including exacerbation of cardiac remodeling associated with a reduction in autophagic activity. When resveratrol and chloroquine were administered together, the effects offset one another. In vitro, compound C (AMP-activated protein kinase inhibitor) suppressed resveratrol-induced autophagy in cardiomyocytes, but did not affect the events evoked by chloroquine. In conclusion, resveratrol is a beneficial pharmacological tool that augments autophagy to bring about reverse remodeling in the postinfarction heart.
    American Journal Of Pathology 12/2012; · 4.60 Impact Factor
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    ABSTRACT: The effect of β-blockers in ST-elevation myocardial infarction (STEMI) patients who have undergone primary percutaneous coronary intervention (PCI) has not been adequately evaluated. Using a large multi-center registry in Japan, we identified 3,692 patients who underwent PCI within 24 h from onset of STEMI and were discharged alive from 2005 to 2007. Three-year cardiovascular outcomes were compared between the 2 groups of patients with (N = 1,614) or without (N = 2,078) β-blocker prescription at discharge. Compared with patients in the no-β group, patients in the β group were younger, more frequently male, more often had hypertension and atrial fibrillation but less often had chronic obstructive pulmonary disease than in the no-β group. Statins and angiotensin-converting enzyme inhibitors/angiotensin receptor blockers were more frequently prescribed in the β group. Crude incidence of cardiac death and/or recurrent myocardial infarction (cardiac death/MI) tended to be higher in the β group (7.6 vs. 6.2 %, log-rank p = 0.1). After adjusting for potential confounders, β-blockers were associated with significantly higher risk for cardiac death/MI (hazard ratio 1.43, 95 % CI: 1.06-1.94, p = 0.01). β-Blocker prescription at discharge was not associated with better cardiovascular outcomes in patients who underwent PCI after STEMI. Large-scale randomized controlled trials are needed to evaluate the role of β-blocker therapy in these patients.
    Cardiovascular intervention and therapeutics. 10/2012;
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    ABSTRACT: AIMS: Active autophagy has recently been reported in doxorubicin-induced cardiotoxicity; here we investigated its pathophysiological role. METHODS AND RESULTS: Acute cardiotoxicity was induced in green fluorescent protein-microtubule-associated protein 1 light chain 3 (GFP-LC3) transgenic mice by administering two intraperitoneal injections of 10 mg/kg doxorubicin with a 3 day interval. A starvation group was deprived of food for 48 h before each injection to induce autophagy in advance. Doxorubicin treatment caused left ventricular dilatation and dysfunction within 6 days. Cardiomyocyte autophagy appeared to be activated in the doxorubicin group, based on LC3, p62, and cathepsin D expression, while it seemed somewhat diminished by starvation prior to doxorubicin treatment. Unexpectedly, however, myocardial ATP levels were reduced in the doxorubicin group, and this reduction was prevented by earlier starvation. Electron microscopy revealed that the autophagic process was indeed initiated in the doxorubicin group, as shown by the increased lysosomes, but was not completed, i.e. autophagolysosome formation was rare. Starvation prior to doxorubicin treatment partly restored autophagosome formation towards control levels. Autophagic flux assays in both in vivo and in vitro models confirmed that doxorubicin impairs completion of the autophagic process in cardiomyocytes. The activities of both AMP-activated protein kinase and the autophagy-initiating kinase unc-51-like kinase 1 (ULK1) were found to be decreased by doxorubicin, and these were restored by prior starvation. CONCLUSION: Prior starvation mitigates acute doxorubicin cardiotoxicity; the underlying mechanism may be, at least in part, restoration and further augmentation of myocardial autophagy, which is impaired by doxorubicin, probably through inactivation of AMP-activated protein kinase and ULK1.
    Cardiovascular Research 09/2012; · 5.81 Impact Factor
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    ABSTRACT: BACKGROUND: The purpose of this study was to determine the cut-off values of Hounsfield units (HU) for the discrimination of plaque components and to evaluate the feasibility of measurement of the volume of plaque components using multi-detector row computed tomography (MDCT). Methods: Coronary lesions (125 lesions in 125 patients) were visualized by both integrated backscatter intravascular ultrasound (IB-IVUS) and 64-slice MDCT at the same site. The IB values were used as a gold standard to determine the cut off values of HU for the discrimination of plaque components. Results: Plaques were classified as lipid pool (n =50), fibrosis (n =65) or calcification (n =35) by IB-IVUS. The HU of lipid pool, fibrosis and calcification were 18 +/- 18 HU (-19 to 58 HU), 95 +/- 24 HU (46 to 154 HU) and 378 +/- 99 HU (188 to 605 HU), respectively. Using receiver operating characteristic curve analysis, a threshold of 50 HU was the optimal cutoff values to discriminate lipid pool from fibrosis. Lipid volume measured by MDCT was correlated with that measured by IB-IVUS (r =0.66, p <0.001), whereas fibrous volume was not (r =0.21, p =0.059). Conclusion: Lipid volume measured by MDCT was moderately correlated with that measured by IB-IVUS. MDCT may be useful for volumetric assessment of the lipid volume of coronary plaques, whereas the assessment of fibrosis volume was unstable.
    Cardiovascular Ultrasound 08/2012; 10(1):33. · 1.32 Impact Factor
  • Yukihito Sato, Hisayoshi Fujiwara, Yoshiki Takatsu
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    ABSTRACT: The Joint European Society of Cardiology-American College of Cardiology Foundation-American Heart Association-World Heart Federation Task Force for the Redefinition of Myocardial Infarction recommends cardiac troponin (cTn)-T as a first-line biomarker, and suggests the use of the 99th percentile of a reference population with acceptable precision (i.e. a coefficient of variance ≤10%) as a cut-off for the diagnosis of acute myocardial infarction. Recently developed troponin assays fulfill this analytical precision. While conventional cTnT assays have often been used as a positive or negative categorical variable, stepwise rises in high sensitivity (Hs)-cTnT in patients presenting with chronic heart failure (HF) have been associated with a progressive increase in the incidence of cardiovascular events. Similar observations have been made in the general population. Hs-cTnT at baseline and during follow-up is a powerful predictor of cardiac events in patients with HF and in the general population. Whether it is the ideal biomarker remains to be confirmed, however. We review the potential contributions of TnT assays in the assessment of risk of HF, in HF, and in myocardial diseases that cause HF.
    Journal of Cardiology 08/2012; 60(3):160-7. · 2.30 Impact Factor
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    ABSTRACT: BACKGROUND: The purpose of the present study was to evaluate the mechanical properties of coronary plaques and plaque behavior, and to elucidate the relationship among tissue characteristics of coronary plaques, mechanical properties and coronary risk factors using integrated backscatter intravascular ultrasound (IB-IVUS). Methods: Non-targeted plaques with moderate stenosis (plaque burden at the minimal lumen site: 50-70%) located proximal to the site of the percutaneous coronary intervention target lesions were evaluated by IB-IVUS. Thirty-six plaques (less calcified group: an arc of calcification [less than or equal to]10) in 36 patients and 22 plaques (moderately calcified group: 10< an arc of calcification [less than or equal to]60) in 22 patients were evaluated. External elastic membrane volume (EEMV) compliance, lumen volume (LV) compliance, plaque volume (PV) response (difference between PV in systole and diastole), EEM area stiffness index were measured at the minimal lumen site. Relative lipid volume (lipid volume/internal elastic membrane volume) was calculated by IB-IVUS. Results: In the less calcified group, there was a significant correlation between EEMV compliance and the relative lipid volume (r=0.456, p=0.005). There was a significant inverse correlation between EEM area stiffness index and the relative lipid volume (p=0.032, r =-0.358). The LV compliance and EEM area stiffness index were significantly different in the diabetes mellitus (DM) group than in the non-DM group (1.32 +/- 1.49 vs. 2.47 +/- 1.79 %/10 mmHg, p =0.014 and 28.3 +/- 26.0 vs. 15.7 +/- 17.2, p =0.020). The EEMV compliance and EEM area stiffness index were significantly different in the hypertension (HTN) group than in the non-HTN group (0.77 +/- 0.68 vs. 1.57 +/- 0.95 %/10 mmHg, p =0.012 and 26.5 +/- 24.3 vs. 13.0 +/- 16.7, p =0.020). These relationships were not seen in the moderately calcified group. Conclusion: The present study provided new findings that there was a significant correlation between mechanical properties and tissue characteristics of coronary arteries. In addition, our results suggested that the EEMV compliance and the LV compliance were independent and the compliance was significantly impaired in the patients with DM and/or HTN. Assessment of coronary mechanical properties during PCI may provide us with useful information regarding the risk stratification of patients with coronary heart disease.
    Cardiovascular Ultrasound 07/2012; 10(1):32. · 1.32 Impact Factor

Publication Stats

14k Citations
2,890.54 Total Impact Points


  • 1995–2014
    • Hyogo Prefectural Amagasaki Hospital
      Amagasaki, Hyōgo, Japan
    • Toyama Medical and Pharmaceutical University
      Тояма, Toyama, Japan
  • 2000–2013
    • Osaka City University
      Ōsaka, Ōsaka, Japan
  • 1996–2013
    • Gifu University
      • • Graduate School of Medicine
      • • Department of Cardiology
      Gihu, Gifu, Japan
  • 2012
    • Meiji University of Oriental Medicine
      Kioto, Kyōto, Japan
  • 1983–2012
    • Kyoto University
      • • Department of Cardiovascular Medicine
      • • Graduate School of Medicine / Faculty of Medicine
      • • Department of Cardiovascular Surgery
      Kyoto, Kyoto-fu, Japan
  • 2007–2011
    • Gifu Prefectural General Medical Center
      Gihu, Gifu, Japan
  • 1986–2010
    • Kyoto Women's University
      Kioto, Kyōto, Japan
  • 1996–2009
    • Gifu University Hospital
      Gihu, Gifu, Japan
  • 2004–2006
    • Kurume University
      • Cognitive and Molecular Research Institute of Brain Diseases
      Куруме, Fukuoka, Japan
  • 1998–2003
    • Gifu Prefectural Tajimi Hospital
      Gihu, Gifu, Japan
  • 1984–2000
    • Osaka University
      • • School of Pharmaceutical Sciences
      • • Division of Molecular Pharmaceutical Science
      • • Division of Cellular and Molecular Biology
      • • Department of Pathology
      Ōsaka-shi, Osaka-fu, Japan
  • 1999
    • University Hospital Medical Information Network
      Edo, Tōkyō, Japan
    • Sakurabashi Watanabe Hospital
      Ōsaka, Ōsaka, Japan
  • 1997
    • The University of Tokyo
      • Department of Internal Medicine
      Tokyo, Tokyo-to, Japan
    • Toray Industries
      Edo, Tōkyō, Japan
  • 1979–1995
    • National Institutes of Health
      • • Branch of Experimental Immunology
      • • Branch of Neuroimmunology and Virology
      Bethesda, MD, United States
  • 1994
    • Osaka Medical Center and Research Institute for Maternal and Child Health
      Izumi, Ōsaka, Japan
  • 1990–1993
    • Chung Shan Hospital
      T’ai-pei, Taipei, Taiwan
  • 1990–1992
    • Shionogi & Co., Ltd.
      Ōsaka, Ōsaka, Japan
  • 1988
    • Rakuwakai Otowa Hospital
      Kioto, Kyōto, Japan
    • Osaka Municipal Technical Research Institute
      Ōsaka, Ōsaka, Japan
  • 1982
    • National Cancer Institute (USA)
      Maryland, United States