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BACKGROUND Left atrial (LA) global strain has been studied as an early marker of LA dysfunction, followed by LA dilatation. Recently, a novel dedicated software for LA 3-dimensional speckle tracking echocardiography (LA-3DSTE) has allowed us to assess anatomy-based six-segmental LA deformation. This study aimed to assess the accuracy of LA-3DSTE software in measuring LA volume and to reveal the characteristics of regional LA reservoir strain. METHODS Fifty patients with paroxysmal atrial fibrillation who underwent computed tomography (CT) and 3D-STE were enrolled. The LA volumes obtained by 3D-STE and CT were compared, and regional LA strain was analyzed. Six LA segments (anterior, septal, inferior, lateral, roof, and posterior) were determined on the basis of LA anatomy. RESULTS In 50 patients (mean age, 64 years; 62% male), the 3D-STE-derived LA volume index (LAVI) showed good correlation with the CT-derived index, (r = 0.78, p < 0.001) with an underestimate bias of 10.5 ± 11.0 ml/m2 (p < 0.001). The lateral LA strain was negatively correlated with LAVI and emptying fraction, while the anterior and septal strains were not. In the 1st quantile LA volume group, the segmental LA strain was heterogeneous, that is, the lateral and inferior strains were greater than the anterior strain. While in the 3rd quantile LA volume group, the lateral and inferior strains were decreased, and there was no regional difference. CONCLUSION LA volume obtained by 3D-STE and CT showed a good correlation. LA segmental analysis by 3D-STE enables early identification of how LA dysfunction affects lateral and inferior LA strains, consistent with anatomical features.

Brain or B-type natriuretic peptide (BNP) is an objective marker to diagnose the presence of heart failure (HF) and assess its severity. However, the determinants of serum BNP level in elderly patients with severe aortic valve stenosis (AS) referred for transcatheter aortic valve implantation (TAVI) have not been well investigated.We prospectively studied 106 AS patients who underwent TAVI. Cardiac catheterization, transesophageal echocardiography, and blood collection for plasma BNP level measurements were performed simultaneously just before the TAVI procedures.Ninety-nine patients (83.9±5.0 years, 33% male) were studied. The natural logarithm of BNP (lnBNP) level was 5.4±0.9 pg/mL. Significant correlations with lnBNP level were observed in: 1) the history of syncope, prior HF medication, and New York Heart Association class III or IV (R=0.255, p=0.011) (R=0.210, p=0.037) (R=0.402, p0.001), 2) albumin and hemoglobin level (R=-0.289, p=0.004) (R=0.263, p=0.009), 3) Left ventricular (LV) ejection fraction and global longitudinal strain (LVGLS) (R=-0.338, p0.001) (R=0.447, p0.001), 4) LV end-diastolic volume index (EDVI), LV mass index, and left atrial volume index (R=0.280, p=0.005) (R=0.366, p0.001) (R=0.337, p0.001), 5) the catheter-measured pressure gradient across the aortic valve (AVPG) (R=0.365, p0.001). Note that LV wall stress was not significantly correlated with lnBNP level. LVGLS, AVPG, hemoglobin level, and LVEDVI were independently correlated with ln BNP level (R=0.652, LVGLS; β=0.395, p0.006, AVPG; β=0.291, p=0.001, hemoglobin level; β=-0.216, p=0.011, and LVEDVI; β=0.203, p=0.016, respectively).In severe AS patients candidate for TAVI, multiple factors, including the severities of AS and HF conditions and subclinical LV dysfunction determined by LVGLS affects plasma BNP level.

Historically, a right bundle branch block has been considered a benign finding in asymptomatic individuals. However, this conclusion is based on a few old studies with small sample sizes. We examined the association between a complete right bundle branch block (CRBBB) and subsequent cardiovascular mortality in the general population in Japan. In this large community-based cohort study, data of 90,022 individuals (mean age, 58.5 ± 10.2 years; 66.2% women) who participated in annual community-based health check-ups were assessed. Subjects were followed up from 1993 to the end of 2016. Cox proportional hazards’ models and log-rank tests were used for the data analysis. CRBBB was documented in 1,344 participants (1.5%). Among all included participants, CRBBB was associated with an increased risk of cardiovascular mortality after adjustment for all potential confounders (hazard ratio [HR] 1.21; 95% confidence interval [CI] 1.06–1.38). The increased risk of cardiovascular mortality was particularly evident in women aged

Radiofrequency catheter ablation (RFCA) is the primary choice for treating patients with an accessory pathway and atrioventricular re-entrant tachycardia. However, using RFCA to treat a right-sided accessory pathway in a patient with Ebstein anomaly can be difficult owing to challenges in locating the electrophysiological atrioventricular groove. We report a case of atrioventricular re-entrant tachycardia in a patient with Ebstein anomaly and a right-sided accessory pathway that was successfully treated using RFCA and 3-dimensional (3D) high-density mapping. RFCA and 3D mapping may be useful in the management of such cases and may aid in improving prognoses of patients.

Background: Hepatocellular carcinoma (HCC) is more likely to occur in patients with a history of Fontan surgery, possibly due to long-term liver congestion. Proton beam therapy (PBT) may be effective for HCC that develops after Fontan surgery. Methods: Six lesions in 5 patients (3 females, 2 males) received PBT. The median age of the patients was 33 (range 21 - 42) years, and the median age at the time of the Fontan procedure was 6 (5 - 13) years. Four patients had multiple HCC at the time of PBT. The median tumor size was 57 (22 - 80) mm and 4 patients were classified as Child-Pugh B. Two patients received transcatheter arterial chemoembolization before PBT. The schedule of PBT was 66 Gy (RBE) in 10 fractions for 2 lesions, 72.6 Gy (RBE) in 22 fractions for 2 lesions, and 74 GyE (RBE) in 37 fractions for 2 lesions. Results: The median follow-up period was 31 (10 - 46) months, and the numbers of survivors, deaths from primary diseases, and deaths from other diseases were 3, 1, and 1, respectively. There were no local recurrences, one intrahepatic metastasis, one lung metastasis, and one intrathoracic metastasis. Conclusion: Although experiences on a small number of patients cannot conclude things, we believe that PBT can be a reasonable choice of radical treatment for HCC occurring after the Fontan procedure.

We herein report three patients with cardiac angiosarcoma who were directly admitted to the intensive-care unit for hemodynamic instability with circulatory collapse. Using a multidisciplinary cardio-oncologic approach, we diagnosed their condition as angiosarcoma by an invasive biopsy and urgently started weekly paclitaxel administration despite their poor performance status. Their vital signs were soon stabilized, leading to the patients’ discharge from the hospital. Although no treatment guidelines for cardiac angiosarcoma have been established, chemotherapy with paclitaxel can be an option for cases presenting with hemodynamic instability.

Background Interruption in Doppler intrarenal venous flow (IRVF) has been used in assessing renal congestion and in the prediction of prognosis of cardiovascular diseases. However, there is a paucity of pathophysiological knowledge, so we aimed to clarify the determinants of IRVF interruption.Methods and Results:Intrarenal Doppler studies were performed within 24 h before right-side catheterization studies. The interruption in IRVF in 73 patients was divided into a continuous pattern, and 4 discontinuous types based on the timing of interruption. Type 1, with an interruption in early systole, was associated with a-wave elevation of right atrial pressure (RAP). Type 2, with an interruption in early diastole, was associated with v-wave elevation, tricuspid regurgitation (TR), and right ventricular dysfunction. Both Type 1 and 2 were observed even in the normal range of mean RAP. Type 3, with an interruption throughout systole, was observed in advanced right heart failure patients with markedly elevated RAP, particularly elevated x-descend and atrial fibrillation. Finally, Type 4, with limited flow at systole, was observed in 2 of the patients with pulmonary arterial hypertension. Conclusions IRVF interruption was closely related to RAP elevation at each specific point of the cardiac cycle rather than to mean RAP levels, suggesting that the characteristics of IRVF mirror right-sided heart hemodynamics, not mean RAP.

Objective Onco-cardiology services are expanding rapidly in Japan. To provide a better service, it is important to consider the needs of oncologists. However, little is known regarding specific needs for which oncologists should consult cardiologists to manage cardiovascular problems of their patients. We analysed cardiology consultations sought by oncologists to evaluate the role of cardiologists in cancer treatment. Method We retrospectively investigated consecutive 2064 cardiology consultations of cancer patients in the University of Tsukuba Hospital, Tsukuba, Japan, between January 2014 and December 2018. Results The most common timing of cardiology consultation was before the commencement of cancer treatment (n = 1355; 65.7%), followed by after the commencement of cancer treatment (n = 686; 33.2%). Among the 361 consultations before the administration of anticancer drugs, 235 (65.1%) were for anthracycline-based regimens. There were 506 (24.5%) consultations for the management of cardiovascular emergencies developing after the commencement of cancer treatment; venous thromboembolism was the most frequent (n = 125; 24.7%), followed by atrial fibrillation (n = 110; 21.7%) and heart failure (n = 74; 14.6%). There were marked differences in the types of cardiovascular emergencies depending on the type of cancer. Conclusions This survey revealed the various cardiovascular problems for which oncologists sought interventions by cardiologists. A multidisciplinary approach in an onco-cardiology service is essential to achieve optimal long-term outcomes.

The score based on the office systolic blood pressure, age, fasting blood glucose level, and estimated glomerular filtration rate (SAGE score) has been proposed as a useful marker to identify elevated values of carotid-femoral pulse wave velocity (PWV). The present cross-sectional study was conducted to examine whether the SAGE score is also a useful marker to identify subjects with elevated brachial-ankle PWV values in Japanese subjects with hypertension. We measured the brachial-ankle PWV and calculated the SAGE score in a total of 1019 employees of a Japanese company with hypertension and 817 subjects with hypertension derived from a multicenter study cohort. The analyses in this study were based on data from these two study groups as well as on a composite population of the two (n = 1836). The receiver operating characteristic curve analysis showed that the area under the curve to identify subjects with brachial-ankle PWV values of ≥1800 cm/s was over 0.70 in each of the three study groups. Even after adjustments, a SAGE score ≥7 had a significant odds ratio for identifying subjects with brachial-ankle PWV values ≥1800 cm/s in the 1836 study subjects from the composite occupational and multicenter study cohort (odds ratio = 2.1, 95% confidence interval = 1.4–3.0, P

The usefulness of brachial-ankle pulse wave velocity (baPWV), an index of arterial stiffness, is not fully known for the management of treated hypertensive patients with a history of coronary artery disease (CAD) who have blood pressure less than 130/80 mmHg, a recommended blood pressure target in the updated major hypertension guidelines. We analyzed data for 447 treated hypertensive patients with CAD enrolled in FMD-J Study A for assessment of the predictive value of baPWV for future cardiovascular events. The primary outcome was a composite of coronary events, stroke, heart failure, and sudden death. During a median follow-up period of 47.6 months, the primary outcome occurred in 64 patients. Blood pressure less than 130/80 mmHg was significantly associated with a lower risk of the composite outcome independent of other cardiovascular risk factors in treated hypertensive patients with CAD (hazard ratio, 0.59; 95% confidence interval (CI), 0.35-0.99; P = 0.04). In treated hypertensive patients with CAD who had blood pressure less than 130/80 mmHg, baPWV above the cutoff value of 1731 cm/s, derived from receiver-operator characteristic curve analysis for the composite outcome was significantly associated with a higher risk of the composite outcome independent of conventional risk factors (hazard ratio, 2.83; 95% CI, 1.02-7.91; P = 0.04). baPWV was an independent predictor of cardiovascular events in treated hypertensive patients with CAD who had blood pressure less than 130/80 mmHg, for whom measurement of baPWV is recommended for cardiovascular risk assessment.

To determine the influence of right bundle branch block (RBBB) on right ventricular (RV) size and function, we investigated the association between complete RBBB (CRBBB) and RV volume, function, and dyssynchrony by three-dimensional echocardiography. In this retrospective, cross-sectional study, 103 consecutive patients with adequate three-dimensional echocardiographic images were divided into the CRBBB, middle-range QRS, and narrow QRS group. RV volumetric and functional data were compared between the three groups. Among the 103 patients (44.8 ± 18.7 years, 50 men), the CRBBB group comprised 26 (25%) patients and the middle-range QRS group comprised 48 (47%). The CRBBB group showed a significant contraction delay in the RV inlet free wall and outflow tract; larger RV end-diastolic and systolic volume index (RV-EDVI, RV-ESVI); and lower RV systolic function. On dividing the CRBBB patients into two (with or without mechanical dyssynchrony), those with RV dyssynchrony showed larger RV-EDVI (121 ± 45 vs. 85 ± 25 mL/m2, P = 0.019) and RV-ESVI (93 ± 42 vs. 56 ± 20 mL/m2, P = 0.009) and smaller RV ejection fraction (24 ± 11 and 34 ± 11%, P = 0.026) than those without RV dyssynchrony. RV dyssynchrony in CRBBB patients might have an adverse effect on RV volume and function. Three-dimensional speckle-tracking echocardiography could provide additional and beneficial data during assessment of RV dyssynchrony.

Using 3-dimensional speckle-tracking echocardiography-derived activation imaging system, we visualized interventricular dyssynchrony in a repaired tetralogy of Fallot case with pacing-induced left ventricular dysfunction. The activation imaging system visualized interventricular dyssynchrony and resynchronization after cardiac resynchronization therapy and may be useful to assess electromechanical disturbance in complicated congenital heart diseases. (Level of Difficulty: Intermediate.), Graphical abstract, Using 3-dimensional speckle-tracking echocardiography-derived activation imaging system, we visualized interventricular dyssynchrony in a repaired…

Background Although atrial fibrillation (AF) is associated with exacerbation of heart failure with preserved ejection fraction (HFpEF), the relationships between maintenance of sinus rhythm (SR) and clinical outcomes in HFpEF is unknown. We investigated whether maintenance of SR was associated with better prognosis compared with rate control in patients with concomitant HFpEF and AF. Methods We conducted a retrospective, observational study of 283 patients with HFpEF and AF. Of these, 107 patients achieved maintenance of SR by catheter ablation and/or antiarrhythmic drugs (rhythm control) and 176 were treated with rate control. The propensity score (PS) for each patient in both treatment groups was estimated, resulting in selectively matched subgroups of 79 patients each. All-cause death and a composite of cardiovascular death or hospitalization for heart failure (HF) were analyzed. Results During a median follow-up period of 24 months, all-cause mortality was comparable between groups; however, maintenance of SR was significantly associated with a lower incidence of the composite endpoint [adjusted hazard ratio (HR), 0.30; 95% confidence interval, 0.18–0.98; p = 0.04] in the PS-matched cohort. The PS-adjusted multivariable analysis based on 283 pre-matched patients also revealed that rhythm control was associated with a lower rate of the composite endpoint (adjusted HR, 0.27; 95% CI, 0.12–0.61; p = 0.002). Subgroup analyses suggested that rhythm control was consistently related to the composite endpoint across a wide spectrum of HFpEF patients. Conclusions Maintenance of SR was associated with a lower risk of composite of cardiovascular death or hospitalization for HF in patients with HFpEF and AF. A randomized trial is necessary to confirm this result.

Background There is an ongoing debate regarding optimal management of patients with paradoxical low gradient severe aortic stenosis (PLG-SAS). We hypothesized that the presence of symptoms is closely associated with future adverse outcome. We aimed to determine the relation between symptoms and outcome in patients with PLG-SAS. Methods We prospectively enrolled 222 patients with PLG-SAS. Left ventricular (LV) volumes, mass, and strain were measured by three-dimensional echocardiography. The primary end-point was cardiac events including cardiac death, ventricular fibrillation, and heart failure leading to hospitalization. Results There were 65 cases of symptomatic PLG-SAS and 157 cases of asymptomatic PLG-SAS. Patients with symptomatic PLG-SAS received beta-blockers, angiotensin blockers, and diuretics more frequently and showed higher levels of B-type natriuretic peptide than patients with asymptomatic PLG-SAS. Although LV chamber parameters were not different, patients with symptomatic PLG-SAS had significantly higher E-wave velocity and E/A ratio than patients with asymptomatic PLG-SAS. During the median follow-up of 18 months, 20 patients reached the primary end-point. Patients with symptomatic PLG-SAS had significantly worse prognosis than patients with asymptomatic PLG-SAS. A similar trend was observed while comparing with the propensity-score-matched cohort after adjusting for age, sex, stroke volume index, and severity of AS. Conclusions Symptomatic PLG-SAS is associated with poorer prognosis even after adjusting for flow status and severity of AS. Therefore, presence of symptoms is not always related to the severity of AS itself but might be related to the underlying comorbidities. Our results suggest a possible link between PLG-SAS and heart failure with preserved ejection fraction in some symptomatic patients.

Background: Circulating triglyceride (TG) levels are a current focus as a residual risk for cardiovascular (CV) events. We evaluated the relationship between circulating TG levels and future CV events in patients with coronary artery disease (CAD) who were treated with conventional therapy. Methods and Results: We analyzed data for 652 patients who were enrolled in the FMD-J Study A. We investigated the associations between serum TG levels and first major CV events (death from CV cause, nonfatal acute coronary syndrome (ACS), nonfatal stroke, and CAD) for a 3-year follow-up period. Patients were divided into 4 groups based on serum TG level: low-normal (

Aims The objective of the study was to evaluate whether the geriatric nutritional risk index (GNRI) at discharge may be helpful in predicting the long‐term prognosis of patients hospitalized with heart failure (HF) with preserved ejection fraction (HFpEF, left ventricular ejection fraction ≥50%), a common HF phenotype in the elderly. Methods and results Overall, 110 elderly HFpEF patients (≥65 years) from the Ibaraki Cardiovascular Assessment Study‐HF (n = 838) were enrolled. The mean age was 78.5 ± 7.2 years, and male patients accounted for 53.6% (n = 59). All‐cause mortality was compared between the low GNRI (

The vasopressin type 2 receptor antagonist tolvaptan may have renoprotective effects in patients with heart failure (HF). This study aimed to reveal the renoprotective effect of tolvaptan from the viewpoint of hemodynamic combined with catheter and ultrasound examinations in a hypertensive HF model. Dahl salt-sensitive rats (n = 24) were fed an 8% high-salt diet after the age of 6 weeks and were treated with tolvaptan (n = 16) or vehicle (control group; n = 8). The tolvaptan-treated rats were divided into two groups: a low-dose group (0.01% tolvaptan diet; Low-Tol) and a high-dose group (0.05% tolvaptan diet; High-Tol). At 24 weeks, catheterizations to measure central venous pressure (CVP) and renal medullary pressure (RMP) were performed, followed by intrarenal Doppler (IRD) studies and contrast-enhanced ultrasonography (CEUS) to evaluate renal medullary perfusion. The tolvaptan diet reduced CVP (7.7 ± 1.5, 9.0 ± 1.1, and 12.2 ± 0.8 mmHg in the High-Tol, Low-Tol, and control groups, respectively; p < 0.001) and RMP (7.7 ± 0.8, 9.4 ± 1.3, and 13.7 ± 1.2 mmHg in the High-Tol, Low-Tol, and control groups, respectively; p < 0.001). Tolvaptan also reduced the venous impedance index (VII) in the IRD analysis (0.18 ± 0.03, 0.26 ± 0.04, and 0.40 ± 0.08 in the High-Tol, Low-Tol, and control groups, respectively; p < 0.001), and the time to peak intensity in CEUS (6.0 ± 0.5, 7.3 ± 1.3, 9.8 ± 1.8 s in the High-Tol, Low-Tol, and control groups, respectively; p < 0.001). Creatinine clearance (Ccr) was preserved in both the High-Tol and Low-Tol groups compared to the control group (4.80 ± 1.9, 4.24 ± 0.8, and 1.35 ± 0.3 mg/min, respectively; p = 0.001). Ccr was negatively correlated with RMP (R = -0.76, P < 0.001), the venous impedance index (R = -0.70, p < 0.001), time to peak intensity (R = -0.75, P < 0.001), and renal fibrosis (R = -0.70, p < 0.001). In contrast, Ccr had modest correlations with systolic blood pressure (R = -0.50, P = 0.02) and left ventricular ejection fraction (R = 0.48, P = 0.03). This study revealed that the renoprotective effects of tolvaptan in a hypertensive HF model depended on renal decongestion.

Objectives The endothelial dysfunction-arterial stiffness-atherosclerosis continuum plays an important pathophysiological role in hypertension. The aim of this study was to investigate the cross-sectional association between serum uric acid (SUA) and vascular markers related to this continuum, and to assess the longitudinal association between SUA and endothelial function that represents the initial step of the continuum. Methods We evaluated the baseline associations between SUA levels and vascular markers that included flow-mediated vasodilatation (FMD), brachial-ankle pulse wave velocity (baPWV), and common carotid artery intima-media thickness (CCA-IMT) in 648 subjects receiving antihypertensive treatment. The longitudinal association between baseline SUA levels and FMD measured at 1.5 and 3 yr of follow-up was also investigated. Results At baseline, modest, but significant correlations were observed between SUA and FMD in females (r = −0.171), baPWV in males with SUA >368.78 μmol/L (r = −0.122) and in females with a SUA level ≤ 362.83 μmol/L (r = 0.217), mean CCA-IMT in females with a SUA level ≤ 333.09 μmol/L (r = 0.139), and max CCA-IMT in females with SUA level ≤ 333.09 μmol/L (r = 0.138). A longitudinal association between SUA and FMD was less observed in males. In females, the baseline SUA was associated significantly with FMD values at 1.5 yr (r = −0.211), and SUA levels >237.92 μmol/L were associated significantly and independently with FMD values at 3 yr (r = −0.166). Conclusions Lower SUA levels were associated with better vascular markers of the continuum, especially in females. Furthermore, we observed a longitudinal association between SUA and endothelial function, suggesting SUA level may be a potential marker of the continuum in hypertension.

Background Whether a dipeptidyl peptidase-4 (DPP-4) inhibitor can attenuate atherosclerosis is still controversial. Some clinical trials reported that DPP-4 inhibitors in diabetes patients without a previous history of cardiovascular (CV) events could reduce carotid intima-media thickness (IMT). However, in the PROLOGUE study, which enrolled diabetes patients both with and without previous CV events, sitagliptin failed to slow the progression of carotid IMT relative to conventional therapy. Aim and methods We hypothesized that the effect of DPP-4 inhibitors on carotid atherosclerosis might be different between the primary and secondary prevention groups. We performed a post hoc analysis of the PROLOGUE study and compared the effects of sitagliptin and conventional therapy on changes in carotid IMT in subgroups with or without previous CV events. Results No significant difference in the IMT changes between the treatment groups was found in the secondary prevention subgroup (sitagliptin, N = 102; conventional, 111). However, in the primary prevention subgroup (sitagliptin, 120; conventional, 109), we found significant inhibitory effects of sitagliptin on mean and max internal carotid artery IMT [estimated group difference: −0.096 mm (95% CI −0.175 to −0.018, p = 0.017) and −0.162 mm (95% CI −0.272 to −0.052, p = 0.004), respectively], although there was no significant difference in the common carotid artery IMT. Conclusions Our data suggest that there is a favorable effect of DPP-4 inhibitor treatment on carotid atherosclerosis in diabetes patients without previous CV events.

Accumulated evidence shows that some antidiabetic agents attenuate the progression of carotid atherosclerosis assessed as intima-media thickness (IMT). Although some studies have demonstrated an inhibitory effect of dipeptidyl peptidase-4 inhibitors on carotid IMT progression, in the PROLOGUE study sitagliptin failed to slow progression relative to conventional therapy for 24 months. We hypothesized that differences in the concomitant antidiabetic agents between the groups have influenced the progression of carotid IMT. We performed a post hoc analysis of the PROLOGUE study using subgroups stratified by concomitant antidiabetic agents. Although no subgroup with any combination of agents in the overall patients showed a significant difference between sitagliptin group and conventional therapy group in the changes from baseline in mean common carotid artery (CCA)-IMT at 24 months, a significant attenuation of mean CCA-IMT progression was observed in the sitagliptin group relative to conventional therapy group only in three combination subgroups aged

As the number of cancer survivors increases, cardiac management in anthracycline-treated patients has become more important. We planned to conduct a prospective multicenter registry study for comprehensive echocardiographic and biomarker data collection and an evaluation of the current practice in terms of diagnosis and management of anthracycline-induced cardiotoxicity (AIC registry). To examine the feasibility of this registry study, we analyzed the 1-year follow-up data of 97 patients registered during the first year of this registry. The AIC registry was launched in July 2016. Data on echocardiographic parameters (e.g., two-and three-dimensional [(2- and 3-D) left ventricular ejection fraction (LVEF) and global longitudinal strain (GLS)) and biomarkers (e.g., troponin T and brain natriuretic peptide) were collected before anthracycline treatment, every 3 months during the first year after starting anthracycline, and every 6 months during the second year. Eighty-three patients (86%) completed a 1-year follow-up. The measurable rates of 2D LVEF, 3D LVEF, and GLS on each visit were nearly optimal (100%, 86–93%, and 84–94%, respectively). During the 1-year follow-up, 5 patients (6.0%) developed cardiotoxicity (a reduction in LVEF ≥ 10 percentage points from baseline and &lt, 55%). The AIC registry study is feasible and will be the first study to collect sizable echocardiographic and biomarker data on cardiotoxicity in Japanese patients treated with anthracycline in a real-world setting.

Background Diagnosis of heart failure with preserved ejection fraction (HFpEF) remains challenging in elderly. This study investigated the diagnostic ability of the HFA-PEFF scoring system in elderly patients (>75 years of age).Methods and Results:This study enrolled 286 subjects aged >75 years (130 men; mean [± SD] age 81.5±5.1 years): 95 healthy controls, 98 with hypertension (HT), and 93 with HFpEF. The HFA-PEFF score was calculated as a sum of points in functional, morphological, and biomarker domains. In the HFpEF group, 84%, 84%, and 70% of subjects met the major functional, morphological, and biomarker criteria for HFpEF, respectively. Thus, 73 subjects with HFpEF (78%) were diagnosed as having HFpEF using the HFA-PEFF scoring system. In contrast, among the healthy controls and subjects with HT, 52% and 72%, respectively, met the major functional criteria for HFpEF, 28% and 53%, respectively, met the morphological criteria, and 0% and 24%, respectively, met the biomarker criteria. As such, 32 subjects with HT (33%) were diagnosed with HFpEF. Even in the healthy control group, 72% were classified as having an intermediate probability of HFpEF, and 3 were diagnosed with HFpEF. Conclusions In the late elderly, the HFA-PEFF scoring system diagnosed subjects with HFpEF precisely. In addition, this scoring system may be able to detect early stage HFpEF in the subclinical population.

Introduction: Hyperkalemia (HK) is frequently encountered in patients treated with renin-angiotensin-aldosterone system inhibitors (RAASi), and is associated with increased mortality in heart failure (HF). While cessation of RAASi is considered an option in HK patients, the serum potassium (sK) threshold for RAASi cessation in HF patients remains unclear . Herein, we sought to assess the impact of RAASi cessation or continuation on risk-benefit balance of hyperkalemic HF patients using propensity score (PS)-matched and cubic spline regression analysis in a nationwide administrative database. Methods: An observational retrospective study was conducted using Japanese hospital claims dataset (April 2008-September 2018). HK was defined as at least two sK ≥5.1 mmol/L within 12-months interval. We examined HK patients on RAASi in HF by employing PS matching to compare risk-benefit between patients with or without RAASi cessation. Cubic spline regression was fit to calculated hazard ratios (HR) in each sK strata for this assessment. Results: Out of 1,208,894 patients, 5,059 HF with HK patients with RAASi prescriptions met inclusion criteria (mean age 76.63 ±10.96 years). Mean follow-up period was 2.75 ± 1.9 years. Cumulative incidence of RAASi cessation was 34.73% at 1 year. Cessation of RAASi was associated with incremental risk of death (+19%, P=0.009) and hospitalization (+14%, P=0.002) , whereas recurrent HK risk was decreased (-60%, P Conclusions: Our results suggest that HK management by RAASi cessation should be avoided especially in HF patients with mild to moderate HK considering the worsening risk-benefit balance.

Background Two-dimensional speckle tracking echocardiography (2D-STE) has been reported to be useful for the diagnosis of myocardial ischemia by detecting delayed relaxation (diastolic stunning) after an episode of angina. 2D-longitudinal strain is not specific besides ischemia such as diastolic dysfunction, and diabetes have been associated with abnormal longitudinal fibers. The aim is to evaluate the diagnostic accuracy of Left ventricular (LV) diastolic transverse strain imaging by STE to detect the presence of acute coronary syndrome (ACS) in diabetic patients with acute chest pain. Methods 385 consecutive patients with acute chest pain and without wall motion abnormality, who were admitted to an emergency department (ED) at 1 of 12 clinical sites in Japan, were enrolled and underwent 2D-STE at ED. Left ventricular (LV) transverse strain values at aortic valve closure (A) and one-third of diastole duration (B) were measured. The strain imaging diastolic index (SI-DI) was value was determined as: (A − B)/A × 100% to assess the LV diastolic strain imaging and was used to identify the regional LV delayed relaxation. All patients underwent coronary CT or coronary angiography to establish the diagnosis of ACS. Clinicians were blinded to the 2D-STE results. Results Out of 385 patients, 2D-STE analysis was possible in 365 patients (94%). 76 patients were diabetic (DM+), and 289 patients were non-diabetic (DM-). With assessment of coronary CT or coronary angiography, ACS was diagnosed in 125 patients (34%). 2D-STE was obtained at a mean of 5.3 hours after chest pain episode. Transverse SI-DI of ischemic segments were significantly lower than those of non-ischemic segments (p value Conclusion LV diastolic transverse strain imaging by 2D-STE at ED increase the sensitivity, specificity and accuracy to predict the presence of ACS in diabetic patients with chest pain, as well as non-diabetic patients. (UMIN000013859). Figure 1. Transverse Strain (SI-DI): AUC (95% CI) Funding Acknowledgement Type of funding source: None

Background/Introduction The right bundle branch block (RBBB) has been considered a benign finding in asymptomatic individuals. However, this concept based on a few, old, small sample size studies. Recently, the importance of the right ventricular dysfunction was focused on cardiovascular prognosis in clinical cardiology. Purpose To determine the prognostic value of RBBB in community-based health checkups cohort with a large sample size in recent years in Japan. Methods We assessed 88,089 individuals (mean age, 58.3±10.2 years; 66.1% women) who participated in annual community-based health checkups. Exclusion criteria were current or previous history of heart disease, stroke, and intraventricular block such as left bundle branch block other than RBBB. We followed them from 1993 to 2016. The primary endpoint was cardiovascular death, or all-cause death. The Cox regression model was assessed in each gender. The variables included in the multivariate analyses were age, body mass index, systolic blood pressure, hypertension, total cholesterol level, high-density lipoprotein cholesterol level, treated-hyperlipidemia, hyperglycemia, treated-diabetes, estimated glomerular filtration rate (eGFR), current smoking, and drinking habit. Results The prevalence of RBBB was higher in men than women (723/29,863 2.4% in men vs. 581/58,204 1.0% in women, P In women, RBBB was associated with significantly increased cardiovascular mortality with multivariate-adjusted hazard ratios (HR) of 1.26 [95% confidence interval (CI), 1.03–1.54]. Then, we divided them into younger or elder groups according to the cut-off age of 65-year-old. In women ≤65-year-old, RBBB related to greater cardiovascular mortality with multivariate-adjusted HR of 1.89 [95% CI, 1.27–2.80]. However, in women >65-year-old, RBBB did not show the prognostic significance. In men, RBBB did not reach the significant results in all participants, however, men >65-year-old with RBBB showed the significant poor prognosis with HR of 1.26 [95% CI, 1.04–1.53]. Conclusions In this cohort study, contrary to common perception, RBBB was associated with increased cardiovascular mortality in women, especially younger women ≤65-year-old, and elderly men. To the extent we know, the present study is the largest and long-term follow-up study showing that the significance of RBBB differs depending on sex and age. Especially in young women who usually are less prone to show wide QRS, RBBB might represent the pathological abnormality. Although the pathophysiological effect of the RBBB on the cardiovascular outcome needs further investigation in the future, clinicians should alert the RBBB in young women and elder men even if they have no symptoms and evaluate the heart abnormality and follow them up carefully. Funding Acknowledgement Type of funding source: None

Background Prior study reported around one-third of cardiac sarcoidosis (CS) are considered as isolated CS. Detection of CS is challenging due to the limited sensitivity of endomyocardial biopsy and applicability of guidelines, especially in patients without extra-cardiac involvement. Existing diagnostic criteria by Japanese Ministry of health and Welfare (JMHW) or Heart Rhythm Society (HRS) require the presence of extra-cardiac sarcoidosis for clinical diagnosis, isolated CS is not diagnosable in the absence of a positive histological finding. Recently, Japanese Society of Cardiology (JCS) updated diagnostic criteria for CS, which provides the pathway to diagnose isolated CS. Purpose We aimed to assess the reliability of the updated CS guideline in diagnosing CS compared to the prior guidelines. Methods We retrospectively identified 162 consecutive patients who underwent FDG-PET for suspected CS from 2012 through 2019. According to the updated JCS diagnostic criteria, patients were classified as histologic diagnosis of CS, clinical diagnosis of CS, or isolated CS (Figure A). We compared the association between diagnostic criteria and response with anti-inflammatory therapy. Results The JCS criteria classified 24 patients (15%) as having clinical CS, 4 (3%) as histological diagnosis of CS, and 21 (13%) as isolated CS. The JMHW criteria defined 22 patients (14%) as having CS (clinical 11%, histological 3%) and HRS criteria classified 11 patients (7%) as having CS (clinical 4%, histological 3%). Extra-cardiac involvement was detected in 36 patients (22%) with 8% of histological confirmation. Among the 126 patients without extra-cardiac involvement, prevalence of cardiac involvement was higher in isolated CS (P Conclusions Updated JCS diagnostic criteria detects CS patients with active myocardial inflammation which require anti-inflammatory therapy regardless of extra-cardiac involvement better than the prior guidelines. Diagnostic criteria for CS Funding Acknowledgement Type of funding source: None

Background Lead-induced tricuspid regurgitation (TR) after cardiac implantable electronic device (CIED) implantation is not fully understood. This study aimed to reveal the features of lead-induced TR by 3-dimensional echocardiography (3DE) in patients with heart failure (HF) events after CIED implantation.Methods and Results:In 143 patients, 3DE assessments for the tricuspid valve (TV) and right ventricular morphologies were sequentially performed within 3 days after CIED implantations, during TR exacerbations, and at ≥6 months after TR exacerbations. TR exacerbations were observed in 29 patients (median 10 months after CIED implantation, range 1-28 months), 15 of whom had lead-induced TR. In the 29 patients, the tenting height of the TV, tricuspid annular (TA) height, and TA area at baseline were independent predictors for worsening TR. In patients with lead-induced TR, tenting height of the TV and TA area were identified as the risk factors. In addition, all patients with a lead positioned on a leaflet immediately after CIED implantations developed lead-induced TR. At follow up, TR exacerbation of lead-induced TR persisted with TA remodeling, but it was improved in the lead non-related-TR group. Conclusions TA remodeling at baseline and a lead location on a leaflet immediately after CIED implantation were associated with lead-induced TR in patients with HF events after CIED implantation. Persistent TA remodeling may make lead-induced TR refractory against HF treatments.

Background Many adult patients with Fontan circulation are treated with antithrombotic agents, including direct oral anticoagulants (DOACs). However, few studies have investigated the efficacy, feasibility, and safety of DOACs in adult patients with Fontan circulation. Methods and Results In this retrospective cohort study, clinical records of 139 adult patients with Fontan circulation (70 females, 50.4%) from April 2015 to March 2018 were reviewed and classified into five groups according to the therapeutic agents used: DOAC (n = 36), vitamin K antagonist (VKA; n = 41), antiplatelet drug (n = 43), combination of an antiplatelet and anticoagulant (n = 14), and no-antithrombotic prophylaxis (n = 5). In a 1114-patient-year follow-up, 28 major events occurred, including 10 thrombotic and 18 bleeding events; 11 of 18 (61%) female patients had severe menorrhagia. The incidence (% patient-years) of major events was 0.6, 1.42, 3.74, and 5.13 in the DOAC, antiplatelet, VKA, combination, and no-antithrombotic groups, respectively. The Cox proportional hazards analysis revealed that the DOAC group had a lower rate of primary endpoints than the VKA group in males. Conclusions DOAC may be a safe antithrombotic agent for use in adult patients with Fontan circulation, particularly in males. However, these findings should be confirmed in multi-institutional prospective studies.

This review focused on right ventricular (RV) three-dimensional echocardiography (3DE) and discussed the following agenda. First, we summarized the clinical RV anatomy and function-related RV3DE use followed by the explanations about 3DSTE image acquisition, including pitfall. Next, we reviewed the reliability and feasibility of RV volume and RV ejection fraction measurements during the last decade. Besides, we described the techniques that might overcome the dropout images at RV anterior and out tract including the current limitations. Finally, speckle tracking echocardiography by RV3DE and novel RV shape assessment were reviewed. This review will help you get comprehensive information on the current status and future perspectives of RV3DE.

Cardiac implantable electronic devices (CIED) implantations may cause lead-induced tricuspid regurgitation (LITR). Although patients with CIED have the risk of functional non-lead induced TR (Non-LITR). This study aimed to compare of clinical outcome between LITR and Non-LITR. The mechanism of TR was determined by 3-dimensional echocardiography. The primary end point was heart failure (HF) hospitalizations after CIED implantation. In patients with HF events, subsequent clinical outcomes after HF hospitalization were compared between no TR, LITR, and Non-LITR groups. In eligible 373 patients, 67 patients had HF hospitalization, of whom worsened TR was observed in 49 patients. In the remaining 307 patients, worsened TR was observed in only 10 patients (3.3%). Of the 49 patients with worsened TR, 18 patients (37%) had LITR. In 67 patients with HF hospitalization, 25 patients (37%) met rehospitalization. All severe LITR persisted after HF events. Meanwhile, severe Non-LITR improved to moderate or mild level. Cox proportional hazard model analyses revealed LITR was the independent risk factor of rehospitalization. Both LITR and Non-LITR were common at HF events after CIED implantations. However, LITR persisted and might contribute to a worse prognosis. In patients with TR after CIED implantations, 3-dimensional echocardiography should be performed to diagnose the LITR accurately, which may contribute to improving the clinical outcome.

It remains unclear whether intrarenal venous flow (IRVF) patterns in patients with heart failure (HF) could change over the clinical course, and whether the changes could have a clinical impact. Thus, this study aimed to clarify these characteristics as well as to identify the relation between changes in the IRVF pattern and renal impairment progression.Patients with HF with repetitive IRVF evaluations were enrolled. Doppler waveforms of IRVF were classified into the following 3 flow patterns: continuous, biphasic discontinuous, and monophasic discontinuous. Primary end points included death from cardiovascular diseases and unplanned hospitalization for HF. Finally, 108 patients with adequate images were enrolled. The IRVF in 35 patients (32.4%) shifted to another pattern at the follow-up examinations. The median brain natriuretic peptide level in the continuous flow pattern at follow-up was significantly decreased (183 to 60 pg/mL, P.001), whereas that of the discontinuous flow pattern at follow-up was increased (from 339 to 366 pg/mL, P = .042) and the estimated glomerular filtration rate was decreased (from 55 to 50 mL/min/1.73 mThe IRVF pattern could be changed depending on the status of congestion. Persistent or worsened renal congestion, represented by discontinuous flow patterns, during the clinical courses indicated a poor prognosis accompanied by renal impairment in patients with HF.

Background Diagnostic criteria of flow‐mediated vasodilation (FMD), an index of endothelial function, and nitroglycerin‐induced vasodilation (NID), an index of vascular smooth muscle function, of the brachial artery have not been established. The purpose of this study was to propose diagnostic criteria of FMD and NID for normal endothelial function and normal vascular smooth muscle function. Methods and Results We investigated the cutoff values of FMD and NID in subjects with (risk group) and those without cardiovascular risk factors or cardiovascular diseases (no‐risk group) in 7277 Japanese subjects (mean age 51.4±10.8 years) from the Flow‐Mediated Dilation Japan study and the Flow‐Mediated Dilatation Japan Registry study for analysis of the cutoff value of FMD and in 1764 Japanese subjects (62.2±16.1 years) from the registry of Hiroshima University Hospital for analysis of the cutoff value of NID. Receiver‐operator characteristic curve analysis of FMD to discriminate subjects in the no‐risk group from patients in the risk group showed that the optimal cutoff value of FMD to diagnose subjects in the no‐risk group was 7.1%. Receiver‐operator characteristic curve analysis of NID to discriminate subjects in the no‐risk group from patients in the risk group showed that the optimal cutoff value of NID to diagnose subjects in the no‐risk group was 15.6%. Conclusions We propose that the cutoff value for normal endothelial function assessed by FMD of the brachial artery is 7.1% and that the cutoff value for normal vascular smooth muscle function assessed by NID of the brachial artery is 15.6% in Japanese subjects. Clinical Trial Registration www.umin.ac.jp Unique identifiers: UMIN000012950, UMIN000012951, UMIN000012952, and UMIN000003409

Funding Acknowledgements none OnBehalf A TRAC-SI Multicenter Trial Background Two-dimensional speckle tracking echocardiography (2D-STE) has been reported to be useful for the diagnosis of myocardial ischemia by detecting delay in regional myocardial expansion (diastolic stunning) up to many hours after an episode of angina. The aim is to evaluate the diagnostic accuracy of Left ventricular (LV) diastolic longitudinal, circumferential, transverse and radial strain imaging by STE to detect the presence of acute coronary syndrome (ACS) in patients with acute chest pain. Methods 388 consecutive patients with acute chest pain and without wall motion abnormality, who were admitted to an emergency department (ED) at 1 of 12 clinical sites in Japan, were enrolled and underwent 2D-STE at ED. Left ventricular (LV) longitudinal, circumferential, transverse and radial strain values at aortic valve closure (A) and one-third of diastole duration (B) were measured. The strain imaging diastolic index (SI-DI) was value was determined as: (A-B)/A × 100% to assess the LV diastolic strain imaging and was used to identify the regional LV delayed relaxation. All patients underwent coronary CT or coronary angiography to establish the diagnosis of ACS. Clinicians were blinded to the 2D-STE results. Results Out of 388 patients, 2D-STE analysis was possible in 358 patients (92%). With assessment of coronary CT or coronary angiography, ACS was diagnosed in 118 patients (33%). 2D-STE was obtained at a mean of 5.3 hours after chest pain episode. SI-DI of longitudinal, circumferential, transverse and radial strain of ischemic segments were significantly lower than those of non-ischemic segments (p value < 0.001), and transverse and radial SI-DI demonstrated high diagnostic accuracy, compared with longitudinal SI-DI (Figure 1). Sensitivity, specificity, and negative predictive value for ACS of transverse SI-DI are 87%, 88%, % and 95%, respectively, using a cut-off value of 63.3. Conclusion LV diastolic strain imaging by 2D-STE at ED increase the sensitivity, specificity and accuracy to predict the presence of ACS in patients with chest pain. Compared with longitudinal diastolic strain imaging, transverse diastolic strain imaging is more sensitive marker to detect the myocardial ischemic episode (UMIN000013859). Abstract 1225 Figure 1

Age-related changes in cardiac morphology and function have not been unknown in the elderly. The Japanese eLderly data Of Normal echocardioGraphy (J-LONG) study is a prospective multicenter cohort study and aimed to investigate the echocardiographic data in the healthy Japanese elderly. Thirty domestic facilities participated in this study, and 130 healthy subjects (57 men, 73 women, 79.6 ± 4.7 years, range 75–98 years, interquartile range 76–82 years) were enrolled in this cohort. Echocardiographic and clinical data sets were obtained in each facility, and total analyses were performed in the University of Tsukuba. Almost all cardiac morphological data were significantly larger in men than those in women. However, corrected data by body surface area (BSA) were similar or closer between genders. As a gender difference, the negative correlation between BSA and age was observed in women only (r = − 0.46, p

Background The difference in the predictive ability of the brachial‐ankle pulse wave velocity (ba PWV ) and its stiffness index β‐transformed value (β‐ba PWV , ie, ba PWV adjusted for the pulse pressure) for the development of pathophysiological abnormalities related to cardiovascular disease or future occurrence of cardiovascular disease was examined. Methods and Results In study 1, a 7‐year prospective observational study in cohorts of 3274 men and 3490 men, the area under the curve in the receiver operator characteristic curve analysis was higher for ba PWV than for β‐ba PWV for predicting the development of hypertension (0.73, 95% CI =0.70 to 0.75 versus 0.59, 95% CI =0.56 to 0.62; P CI =0.73 to 0.82 versus 0.66, 95% CI =0.60 to 0.71; P Conclusions Stiffness index β transformation of the ba PWV may attenuate the significance of the ba PWV as a risk marker for development of pathophysiological abnormalities related to cardiovascular disease in male subjects.

Objectives To examine the effect of asymptomatic severe aortic stenosis (AS) on mortality late in life. Design Retrospective cohort study. Setting Large medical center. Participants Asymptomatic adults aged 80 and older (mean age 86 ± 4; N=1,060, n=569 women) with preserved left ventricular ejection fraction (LVEF; > 50%); 927 (87.5%) with no AS, 70 (6.6%) with nonsevere AS, and 63 (5.9%) with severe AS. Measurements Information was collected on demographic characteristics, comorbidities, and laboratory and echocardiographic data. Survival was assessed according to longest follow‐up available. Results During a mean follow‐up of 2.2 ± 2.3 years, there were 203 (19%) deaths, 51 of which were from cardiovascular causes. Four‐year estimates of survival were 72% for no AS, 58% for nonsevere AS, and 23% for severe AS (p

Wave intensity (WI) is a novel noninvasive index of circulatory dynamics that reflects ventriculo-arterial coupling. It is calculated as the product of the first derivative of blood pressure and that of flow velocity measured by carotid echocardiography. This study aimed to clarify the clinical implications of WI and its relation with carbon dioxide production (VE/VCO2 slope). Twenty-one healthy volunteers (control group) and 21 patients with hypertension (HT group) underwent cardiopulmonary exercise testing (CPX) and exercise stress echocardiography. WI was assessed in the right carotid artery using an ultrasound system. The first peak of WI (W1) during the early ejection phase was measured at baseline and mitral annular velocity was assessed by tissue Doppler imaging. Ventilatory kinetics during exercise was assessed using the relation of minute ventilation to VE/VCO2 slope. VE/VCO2 slope, W1, and E/E′ were greater in the HT group than in the control group. PeakVO2 and VO2 at the anaerobic threshold were lower in the HT group than in the control group. VE/VCO2 slope was significantly correlated with W1 (r = 0.58, p

Objectives To examine the longitudinal mutual association between endothelial dysfunction and arterial stiffness, and also to determine which of the two variables was more closely associated with the progression of subclinical organ damage. Methods The brachial-ankle pulse wave velocity (baPWV), carotid intima-media thickness (CIMT), estimated glomerular filtration rate, microalbuminuria and flow-mediated vasodilatation of the brachial artery (FMD) were measured three times at 1.5-year intervals in 674 Japanese patients receiving antihypertensive treatment. Results The change of the baPWV during the study period was larger in the subjects with baseline FMD values in the lowest tertile as compared to those with baseline FMD values in the highest tertile. The change of the CIMT was smaller in the subjects with baseline baPWV values in the lowest tertile than in those with baseline baPWV values in the highest tertile. After the adjustment, the FMD value at the baseline was inversely associated with the baPWV at the end of the study period (beta=−0.07, p =0.01), although, the reverse association was not significant. The baPWV, but not the FMD value, at the baseline was associated with the CIMT (beta=0.06, p =0.04) measured at the end of the study period. Conclusions In hypertension, endothelial dysfunction was associated with the progression of arterial stiffness, although the reverse association was not confirmed. The increased arterial stiffness rather than endothelial dysfunction may be more closely associated with the progression of atherosclerotic vascular damage, and the endothelial dysfunction-arterial stiffness-atherosclerosis continuum may be important in hypertension.

Controlling nutritional status (CONUT) uses 2 biochemical parameters (serum albumin and cholesterol level), and 1 immune parameter (total lymphocyte count) to assess nutritional status. This study examined if CONUT could predict the short-term prognosis of heart failure (HF) patients.A total of 482 (57.5%) HF patients from the Ibaraki Cardiovascular Assessment Study-HF (n = 838) were enrolled (298 men, 71.7 ± 13.6 years). Blood samples were collected at admission, and nutritional status was assessed using CONUT. CONUT scores were defined as follows: 0-1, normal; 2-4, light; 5-8, moderate; and 9-12, severe degree of undernutrition. Accordingly, 352 (73%) patients had light-to-severe nutritional disturbances. The logarithmically transformed plasma brain natriuretic peptide (log BNP) concentration was significantly higher in the moderate-severe nutritional disturbance group (2.92 ± 0.42) compared to the normal group (2.72 ± 0.45, P < 0.01). CONUT scores were significantly higher in the in-hospital death patients [4 (3-8), n = 14] compared with patients who were discharged following symptom alleviation [3 (1-5), n = 446, P < 0.05]. With the exception of transferred HF patients (n = 22), logistic regression analysis that incorporated the CONUT score and the log BNP, showed that a higher CONUT score (P = 0.019) and higher log BNP (P = 0.009) were predictors of in-hospital death, and the median duration of hospital stay was 20 days.Our results demonstrate the usefulness of CONUT scores as predictors of short-term prognosis in hospitalized HF patients.

Baseline brachial artery (BBA) diameter has been reported to be a potential confounding factor of flow-mediated vasodilation (FMD). The purpose of this study was to evaluate the relationships between BBA diameter and cardiovascular risk factors and compare the diagnostic accuracy of BBA diameter in subjects without cardiovascular risk factors and patients with cardiovascular disease (CVD) with that of FMD.We measured BBA diameter and FMD in 5695 male subjects. In addition, we retrospectively investigated the incidence of cardiovascular events using another population sample consisting of 440 male subjects, to compare the accuracy of BBA diameter with that of FMD in predicting cardiovascular events.BBA diameter and FMD significantly correlated with age, body mass index, systolic blood pressure, diastolic blood pressure, triglycerides, high-density lipoprotein cholesterol, and glucose as well as Framingham risk score. The prevalence of cardiovascular risk factors and CVD increased with the increase in BBA diameter and FMD. Area under the curve (AUC) value of the receiver operating characteristic (ROC) curve for BBA diameter to diagnose subjects without cardiovascular risk factors (0.59 vs. 0.62, p = 0.001) or patients with CVD (0.58 vs. 0.64, p 0.001) was significantly lower than that for FMD. In the retrospective study, the AUC value of the ROC curve for BBA diameter to predict first major cardiovascular events was significantly lower than that of FMD (0.50 vs. 0.62, p = 0.03).In men, BBA diameter was inferior to FMD for assessment of cardiovascular risk.

Renal congestion is caused by elevated central venous pressure (CVP), and decreases glomerular filtration in patients with congestive heart failure. Since real-time contrast-enhanced ultrasonography (CEUS) using microbubble-based contrast agents can visualize the perfused microvascular bed, we sought to evaluate the impairment of renal perfusion during acute renal congestion with CEUS. In Wister rats, CEUS of kidney was performed with the direct monitoring of CVP and intra-renal pressure (IRP). When CVP was elevated to 10 and 15 mmHg after the bolus injection of normal saline via the femoral vein, peak intensity (PI, dB) and time to PI (TTP) in the renal cortex and medulla were compared with control rats. There was a strong correlation between IRP and CVP (r = 0.95, p

Hypertension is associated with endothelial dysfunction. Blood pressure significantly correlates with endothelial function in antihypertensive drug-naive subjects. The purpose of this study was to determine whether treatment status affects the relationship between blood pressure and endothelial function. We measured flow-mediated vasodilation (FMD) in 2297 subjects, including 1822 antihypertensive drug-naive subjects and 475 treated hypertensive patients. FMD significantly decreased in relation to increase in systolic blood pressure (8.2±3.1% in subjects with systolic blood pressure of P P =0.77). Propensity score matching analysis revealed that the prevalence of endothelial dysfunction defined as FMD of less than the division point for the lowest tertile, and the middle tertile of FMD was significantly higher in treated hypertensive patients than in untreated subjects in all systolic blood pressure categories. Endothelial function assessed by FMD was impaired regardless of the level of blood pressure achieved by antihypertensive drug treatment in hypertensive patients.