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  • 1
    In: Echocardiography, Wiley, Vol. 32, No. 11 ( 2015-11), p. 1607-1607
    Type of Medium: Online Resource
    ISSN: 0742-2822 , 1540-8175
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 2041033-5
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  • 2
    In: Echocardiography, Wiley, Vol. 32, No. 3 ( 2015-03), p. 428-435
    Abstract: Exercise‐induced pulmonary hypertension ( PH ) is considered as an early preclinical functional phase of resting PH in systemic sclerosis ( SS c). In this study, we investigated the prevalence of exercise‐induced PH in patients with SS c and evaluated the influence of pulmonary vascular reserve on exercise‐induced PH . Methods This prospective study included 568 SS c patients. The patients with interstitial lung disease and those with left ventricular dysfunction were excluded (n = 50); finally, 518 patients underwent simple exercise echocardiography using a Master's two‐step. Systolic pulmonary artery pressure ( SPAP ), the ratio of early diastolic transmitral flow velocity to early diastolic mitral annular velocity (E/e') and pulmonary vascular resistance ( PVR ) were measured before and after exercise. Δ PVR (the difference between rest and post) was used for the assessment of pulmonary vascular reserve. All patients were stratified into the no exercise‐induced PH ( SPAP   〈 50 mmHg) or exercise‐induced PH ( SPAP ≥50 mmHg, n = 133) group. Results Of the study patients, 27% patients were identified as having exercise‐induced PH . Δ PVR was higher in the exercise‐induced PH than no exercise‐induced PH group (0.2 ± 0.3 vs. 0.4 ± 0.4 WU , P  〈  0.0001). A weak correlation was found between postexercise SPAP and postexercise E/e' (r = 0.31, P  〈  0.0001), whereas a strong correlation was found between postexercise SPAP and postexercise PVR (r = 0.62, P  〈  0.0001). The analyzed data demonstrated that Δ PVR was independently associated with exercise‐induced PH (odds ratio, 3.435; 95% CI , 1.013–11.650, P = 0.033). Conclusions The present study demonstrated that exercise‐induced PH was common in patients with SS c. Exercise‐induced PH might be closely associated with the factors affecting reduced pulmonary vascular reserve in patients with SS c.
    Type of Medium: Online Resource
    ISSN: 0742-2822 , 1540-8175
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 2041033-5
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  • 3
    In: Echocardiography, Wiley, Vol. 38, No. 10 ( 2021-10), p. 1731-1740
    Abstract: Dobutamine stress echocardiography (DSE) is not always feasible in patients with low‐gradient severe aortic stenosis (LG‐SAS), and there are limited data available on the resting echocardiographic predictors for true‐severe aortic stenosis (TSAS). This study investigated resting echocardiographic predictors for TSAS. Methods Clinical data of 106 LG‐SAS patients who underwent DSE were retrospectively analyzed. LG‐SAS was defined as an aortic valve area index (AVAi)  〈  .6 cm 2 /m 2 , and a mean AV pressure gradient  〈  40 mm Hg. The velocity ratio (VR) was calculated as the peak left ventricular outflow tract velocity/peak AV velocity. TSAS was defined as a projected AVAi  〈  .6 cm 2 /m 2 . Results The mean age was 79.3 ± 7.3 years, and 45 (42.5%) were men. The resting AV data were as follows: AVAi, .50 ± .07 cm 2 /m 2 ; mean AV pressure gradient, 23.0 ± 7.4 mm Hg; and VR, .25 ± .05. The projected AVAi was .58 ± .09 cm 2 /m 2 , and TSAS was documented in 65 (61.3%) patients. In multivariate analysis, the independent predictors of TSAS were AVAi ( p  = 0.012) and VR ( p  = 0.004) with respective best cut‐off values of .52 cm 2 /m 2 and .25 on receiver‐operating characteristic curve analysis. According to incremental numbers of the predictors, correct classification percentages of TSAS significantly increased with the Cochran‐Armitage trend test (16.2% in no predictors, 65.2% in one predictor, and 95.7 % in two predictors; p   〈  0.001). Conclusions Resting AVAi and VR were independent predictors of TSAS in LG‐SAS patients. The true severity might be predictable using the combination of resting parameters.
    Type of Medium: Online Resource
    ISSN: 0742-2822 , 1540-8175
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
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  • 4
    In: ESC Heart Failure, Wiley, Vol. 7, No. 6 ( 2020-12), p. 4024-4031
    Abstract: Older adults at risk for malnutrition are known to have a high mortality rate. This study aimed to investigate whether the Mini Nutritional Assessment—Short Form (MNA‐SF) could predict midterm mortality in patients undergoing transcatheter aortic valve implantation (TAVI). Methods and results We applied the MNA‐SF in 288 patients who had undergone TAVI from January 2016 to June 2019 at the St. Marianna University School of Medicine hospital. Using the MNA‐SF cut‐off value to indicate the risk of malnutrition, patients were divided into two groups, namely, those with an MNA‐SF score ≤11 (impaired MNA‐SF group) and those with an MNA‐SF score ≥12 (maintained MNA‐SF group). We used this value to investigate the association between the MNA‐SF and all‐cause mortality. Overall, 188 (65%) and 100 (35%) patients comprised the impaired MNA‐SF and maintained MNA‐SF groups, respectively, and 41 patients died after TAVI (mean follow‐up duration, 458 ± 315 days). Kaplan–Meier analyses showed that patients in the impaired MNA‐SF group had a significantly higher incidence of all‐cause mortality (hazard ratio 2.67; 95% confidence interval 1.29–6.21; P  = 0.01). Multivariate Cox regression analyses showed that the MNA‐SF score was an independent predictor of all‐cause mortality after adjusting for the Society of Thoracic Surgeons risk score, Katz Index, and brain natriuretic peptide test results (hazard ratio 1.14; 95% confidence interval 1.01–1.28; P  = 0.04). Conclusions The MNA‐SF was useful to screen for the risk of malnutrition in patients with TAVI and in predicting midterm prognoses in patients undergoing TAVI and could predict patient mortality after the procedure.
    Type of Medium: Online Resource
    ISSN: 2055-5822 , 2055-5822
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2814355-3
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  • 5
    In: Clinical Cardiology, Wiley, Vol. 44, No. 8 ( 2021-08), p. 1089-1097
    Abstract: A high frequency of coronary artery disease (CAD) is reported in patients with severe aortic valve stenosis (AS) who undergo transcatheter aortic valve implantation (TAVI). However, the optimal management of CAD in these patients remains unknown. Hypothesis We hypothesis that AS patients with TAVI complicated by CAD have poor prognosis. His study evaluates the prognoses of patients with CAD and severe AS after TAVI. Methods We divided 186 patients with severe AS undergoing TAVI into three groups: those with CAD involving the left main coronary (LM) or proximal left anterior descending artery (LAD) lesion (the CAD[LADp] group), those with CAD not involving the LM or a LAD proximal lesion (the CAD[non‐LADp] group), and those without CAD (Non‐CAD group). Clinical outcomes were compared among the three groups. Results The CAD[LADp] group showed a higher incidence of major adverse cardiovascular and cerebrovascular events (MACCEs) and all‐cause mortality than the other two groups (log‐rank p = .001 and p = .008, respectively). Even after adjustment for STS score and percutaneous coronary intervention (PCI) before TAVI, CAD[LADp] remained associated with MACCE and all‐cause mortality. However, PCI for an LM or LAD proximal lesion pre‐TAVI did not reduce the risk of these outcomes. Conclusions CAD with an LM or LAD proximal lesion is a strong independent predictor of mid‐term MACCEs and all‐cause mortality in patients with severe AS treated with TAVI. PCI before TAVI did not influence the outcomes.
    Type of Medium: Online Resource
    ISSN: 0160-9289 , 1932-8737
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2048223-1
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  • 6
    In: Echocardiography, Wiley, Vol. 32, No. 4 ( 2015-04), p. 654-659
    Abstract: Energy loss index ( ELI ) and valvuloarterial impedance (Z va ) have been evaluated with a lack of three‐dimensional (3D) information regarding the left ventricular outflow tract ( LVOT ) and sino‐tubular junction ( STJ ). Our aim of this study is to compare the difference of ELI and Z va between two‐dimensional (2D) and 3D echocardiography. Methods In 74 patients with moderate‐to‐severe aortic stenosis, the effective orifice area index (EOAI: EOA/body surface area) was calculated by continuity equation based on both 2D transthoracic echocardiography (2DTTE) and 3D transesophageal echocardiography (3DTEE). The areas of the LVOT and the STJ were calculated with the assumption of π × (dimension/2) 2 by 2DTTE and were measured directly by 3DTEE. Severe AS was defined as EOAI or ELI 〈 0.6 cm 2 /m 2 or Z va  ≥ 4.5 mmHg/mL per m 2 . Results Both the LVOT and STJ were elliptical, and LVOT was more elliptical than STJ. The ELI by 3DTEE (0.58 cm 2 /m 2 [median]) was larger than the other 3 values: EOAI on 2DTTE = 0.41, P  〈  0.01; EOAI on 3DTEE = 0.49, P  〈  0.01; and ELI on 2DTTE = 0.49, P  〈  0.01. Furthermore, Z va by 2DTTE, 4.7 mmHg/mL per m 2 , was larger than that by 3DTEE (3.8, P  〈  0.01). Conclusions 2DTTE underestimated EOAI and ELI relative to 3DTEE and overestimated Z va relative to 3DTEE.
    Type of Medium: Online Resource
    ISSN: 0742-2822 , 1540-8175
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2015
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  • 7
    In: Echocardiography, Wiley, Vol. 39, No. 10 ( 2022-10), p. 1338-1343
    Abstract: Although Doppler evaluation using a multiplanar method is recommended to assess the severity of aortic stenosis (AS) with transthoracic echocardiography, evidence on the diagnostic significance of a non‐apical method is limited. This study aimed to compare the use of the apical with the use of the right parasternal view (RPV) method to evaluate AS severity and to examine the diagnostic significance of performing the RPV method in addition to the apical method during the evaluation. Methods This retrospective observational study included 276 consecutive patients (mean age: 79 ± 10 years; women, 56%) with severe AS (aortic valve area [AVA] ≤1.0cm 2 ). The severity of AS according to the apical method and that according to the RPV for all subjects were compared, and the significance of performing the RPV method in addition to the apical method was examined. Furthermore, we compared the concordance group, in which the apical and RPV methods indicated matching in severity, and the discordant group, in which the apical and RPV methods did not indicate matching severity. Results Peak velocity ( V max ), mean pressure gradient (MG) were significantly higher and the AVA, AVAi, and Doppler velocity index (DVI) were significantly smaller when the RPV was added to the apical view. Performing the RPV method in addition to the apical method significantly decreased the number of low PG AS cases (MG 〈 40 mmHg) from 69.9% to 65.0% and it increased the number of very severe AS cases ( V max ≥ 5 m/s) from 8.7% to 14.5%. Deviation of Doppler angle was significantly greater in the discordant group compared to the concordant group (22.5 ± .6 vs. 31.8 ± 1.7, p 〈 .001). Conclusions By performing the RPV method in addition to the apical method to determine AS severity, the diagnosis of AS to be resolved in approximately 10% of cases. These results suggest that AS severity may be underestimated by using the apical method alone.
    Type of Medium: Online Resource
    ISSN: 0742-2822 , 1540-8175
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2022
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  • 8
    In: Echocardiography, Wiley, Vol. 32, No. 11 ( 2015-11), p. 1608-1613
    Abstract: Although takotsubo cardiomyopathy ( TTC ) has been reported to have a favorable outcome, many complications may occur in the acute phase. Heart failure is the most common clinical complication in patients with TTC . We aimed to investigate determinants of secondary pulmonary hypertension ( PH ) in patients with TTC . Methods This study consisted of 55 patients with TTC . Detailed echocardiographic measurements were taken, including pulmonary artery systolic pressure ( PASP ). PH was identified PASP 〉 35 mmHg. The severity of mitral regurgitation ( MR ) was evaluated by measuring effective regurgitant orifice area ( EROA ). Follow‐up echocardiography was performed in 45 patients (81.8%) within 4 weeks after initial presentation. Results All patients were stratified into PH or no PH ( NPH ) group (average PASP : 46.2 ± 6.7 vs. 29.8 ± 3.3 mmHg, P  〈  0.001); 25 patients (45.5%) were categorized into the PH group. Left ventricular ( LV ) volume, LV ejection fraction, and troponin I levels did not significantly differ between the two groups. Age and EROA were significantly greater in PH group than NPH group (age; 74.6 ± 9.1 vs. 63.5 ± 17.7, EROA ; 0.22 ± 0.17 vs. 0.03 ± 0.05 cm 2 , all P  〈  0.01). The multivariate analysis revealed that age and EROA were independent predictors for PH in patients with TTC (all P  〈  0.001). PASP was significantly improved at follow‐up compared to those at initial presentation (35.8 ± 8.4 vs. 30.3 ± 7.9 mmHg, P  〈  0.01). Conclusion Age and the severity of MR were independent predictors for secondary PH in patients with TTC .
    Type of Medium: Online Resource
    ISSN: 0742-2822 , 1540-8175
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2015
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  • 9
    In: ESC Heart Failure, Wiley, Vol. 9, No. 4 ( 2022-08), p. 2474-2483
    Abstract: Data on B‐type natriuretic peptide (BNP) levels and adverse outcomes in patients with moderate mixed aortic valve disease (MAVD), defined as moderate aortic stenosis (AS) and regurgitation (AR), are scarce. Therefore, this study investigated the impact of BNP on the clinical outcomes in such patients. Methods and results Clinical data from 81 patients (mean age, 74.1 ± 6.8 years; 50.6%, men) treated for moderate MAVD and left ventricular ejection fraction (LVEF) ≥ 50% during 2010–2018 were retrospectively analysed. Specific echocardiographic data of the study patients were LVEF of 57.8 ± 5.0%, aortic valve index of 0.64 ± 0.04 cm 2 /m 2 , peak aortic valve velocity of 3.38 ± 0.29 m/s, and AR vena contracta width of 4.2 ± 0.7 mm. The median BNP level was 61.4 pg/mL (interquartile range, 29.7–109.9). The primary endpoint was a composite of all‐cause death, heart failure hospitalization, and aortic valve replacement, and its cumulative incidence at 5 years was 57.7%. Multivariable analysis revealed that age (hazard ratio, 1.079; 95% confidence interval, 1.028–1.133; P  = 0.002) and BNP levels (hazard ratio, 1.028; 95% confidence interval, 1.003–1.053; P  = 0.027) were significantly related to the endpoint; specifically, BNP  〉  61.4 pg/mL had significantly higher incidence rates of the endpoint than those with a BNP ≤ 61.4 pg/mL (70.3% vs. 45.5% at 5 years; P  = 0.018). Compared with patients with BNP ≤ 61.4 pg/mL, those with BNP  〉  61.4 pg/mL had significantly worse left ventricular global longitudinal strain (−17.1 ± 3.6% vs. −18.7 ± 2.6%; P  = 0.029), along with higher left ventricular mass index (116.9 ± 27.8 g/m 2 vs. 103.5 ± 19.7 g/m 2 ; P  = 0.014), relative wall thickness (0.45 ± 0.07 vs. 0.42 ± 0.05; P  = 0.022), left atrial volume index (46.0 ± 28.4 mL/m 2 vs. 31.4 ± 10.3 mL/m 2 ; P  = 0.003), pulmonary artery systolic pressure (32.6 ± 9.7 mmHg vs. 28.2 ± 4.7 mmHg; P  = 0.011), and prevalence of moderate or greater tricuspid regurgitation (15.0% vs. 0.0%; P  = 0.012). Conclusions Patients with moderate MAVD are at higher risk of unfavourable clinical outcomes, and age and BNP are independently related to the occurrence of adverse events. High BNP levels may reflect extravalvular cardiac damage in patients with moderate MAVD.
    Type of Medium: Online Resource
    ISSN: 2055-5822 , 2055-5822
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2814355-3
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  • 10
    In: Journal of Medical Virology, Wiley, Vol. 83, No. 3 ( 2011-03), p. 501-509
    Abstract: Human T‐cell lymphotropic virus type I (HTLV‐1) causes adult T‐cell leukemia/lymphoma and HTLV‐1‐associated myelopathy/tropical spastic paraparesis (HAM/TSP). The different patterns of clinical diseases are thought to be linked to immunogenetic host factors. A variety of autoimmune diseases, such as Sjögren's syndrome, have been reported in persons infected with HTLV‐1, although the precise relationship between these disorders and HTLV‐1 infection remains unknown. There is no report on the repertoire of HTLV‐1‐specific CD8 + T‐cells in HAM/TSP patients or carriers with autoimmune diseases, both characterized by an abnormal immune state. In this study, to characterize HTLV‐1‐specific CD8 + T‐cells in asymptomatic HTLV‐1 carriers, HAM/TSP patients and carriers with autoimmune diseases, we examined the frequency and diversity of HTLV‐1‐specific CD8 + T‐cells using HTLV‐1 tetramers. HTLV‐1 Env‐specific CD8 + T‐cells were significantly more frequent in HAM/TSP and carriers with autoimmune diseases compared with asymptomatic HTLV‐1 carriers, while the frequency of HTLV‐1 Tax‐specific CD8 + T‐cells was not significantly different among them. CD8 + cells binding to HTLV‐1 Tax tetramers in carriers with autoimmune diseases were significantly reduced compared with HAM/TSP patients. This study demonstrates the importance of CD8 + T‐cells recognizing HTLV‐1 Env‐tetramers in HAM/TSP patients and carriers with autoimmune diseases, thereby suggesting that the diversity, frequency and repertoire of HTLV‐1 Env‐specific CD8 + T‐cell clones may be related to the hyperimmune response in HAM/TSP and carriers with autoimmune diseases, although different immunological mechanisms may mediate the hyperimmunity in these conditions. J. Med. Virol. 83:501–509, 2011. © 2011 Wiley‐Liss, Inc.
    Type of Medium: Online Resource
    ISSN: 0146-6615 , 1096-9071
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2011
    detail.hit.zdb_id: 752392-0
    detail.hit.zdb_id: 1475090-9
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