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  • Ovid Technologies (Wolters Kluwer Health)  (9)
  • 1
    In: Journal of the American Heart Association, Ovid Technologies (Wolters Kluwer Health)
    Abstract: Limited data are available about clinical outcomes and residual mitral regurgitation (MR) after transcatheter edge‐to‐edge repair in the large Asian‐Pacific cohort. Methods and Results From the Optimized Catheter Valvular Intervention (OCEAN‐Mitral) registry, a total of 2150 patients (primary cause of 34.6%) undergoing transcatheter edge‐to‐edge repair were analyzed and classified into 3 groups according to the residual MR severity at discharge: MR 0+/1+, 2+, and 3+/4+. The mortality and heart failure hospitalization rates at 1 year were 12.3% and 15.0%, respectively. Both MR and symptomatic improvement were sustained at 1 year with MR ≤2+ in 94.1% of patients and New York Heart Association functional class I/II in 95.0% of patients. Compared with residual MR 0+/1+ (20.4%) at discharge, both residual MR 2+ (30.2%; P   〈  0.001) and 3+/4+ (32.4%; P  = 0.007) were associated with the higher incidence of death or heart failure hospitalization (adjusted hazard ratio [HR], 1.59; P   〈  0.001, and adjusted HR, 1.73; P  = 0.008). New York Heart Association class III/IV at 1 year was more common in the MR 3+/4+ group (20.0%) than in the MR 0+/1+ (4.6%; P   〈  0.001) and MR 2+ (6.4%; P   〈  0.001) groups, and the proportion of New York Heart Association class I is significantly higher in the MR 1+ group (57.8%) than in the MR 2+ group (48.3%; P  = 0.02). Conclusions The OCEAN‐Mitral registry demonstrated favorable clinical outcomes and sustained MR reduction at 1 year in patients undergoing transcatheter edge‐to‐edge repair. Both residual MR 2+ and 3+/4+ after transcatheter edge‐to‐edge repair at discharge were associated with worse clinical outcomes compared with residual MR 0+/1+. Registration Information https://upload.umin.ac.jp . Identifier: UMIN000023653.
    Type of Medium: Online Resource
    ISSN: 2047-9980
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
    detail.hit.zdb_id: 2653953-6
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  • 2
    In: Journal of the American Heart Association, Ovid Technologies (Wolters Kluwer Health), Vol. 12, No. 16 ( 2023-08-15)
    Abstract: Prognostic implications of transcatheter aortic valve implantation (TAVI) in low‐gradient (LG) aortic stenosis (AS) remain controversial. The authors hypothesized that differences in cardiac functional recovery may solve this ongoing controversy. The aim was to evaluate clinical outcomes and the response of left ventricular (LV) function following TAVI in patients with LG AS. Methods and Results This multicenter retrospective study included 1742 patients with severe AS undergoing TAVI between January 2015 and March 2019. Patients were subdivided into low‐flow (LF) LG, normal‐flow (NF) LG, LF high‐gradient, and NF high‐gradient AS groups according to the mean gradient of the aortic valve (LG 〈 40 mm Hg) and LV stroke volume index (LF 〈 35 mL/m 2 ). Outcomes and changes in echocardiographic parameters after TAVI were compared between the groups. A total of 227 patients (13%) had reduced ejection fraction, and 486 patients (28%) had LG AS (LF‐LG 143 [8%]; NF‐LG 343 [20%] ). During a median follow‐up period of 747 days, 301 patients experienced a composite end point of cardiovascular death and rehospitalization for cardiovascular events, which was higher in the LF‐LG and NF‐LG groups than in the high‐gradient groups. LG AS was independently associated with the primary outcome (hazard ratio, 1.69; P 〈 0.001). Among 1239 patients with follow‐up echocardiography, LG AS showed less improvement in the LV mass index and LV end‐diastolic volume compared with high‐gradient AS after 1 year, while LV recovery was similar between the LF AS and NF AS groups. Conclusions LG AS was associated with poorer outcomes and LV recovery, regardless of flow status after TAVI. Careful evaluation of AS severity may be required in LG AS to provide TAVI within the appropriate time and advanced care afterward.
    Type of Medium: Online Resource
    ISSN: 2047-9980
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
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  • 3
    In: Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 146, No. Suppl_1 ( 2022-11-08)
    Abstract: Introduction: Global longitudinal strain (GLS) can predict cancer therapeutics-related cardiac dysfunction (CTRCD) and guide initiation of cardioprotection (CPT) at the time of chemotherapy. No prospective randomized controlled trial (RCT) has identified the impact on LV function in survivors. Hypothesis: GLS-guided CPT provides less cardiac dysfunction in survivors of potentially cardiotoxic chemotherapy, compared with usual care. Methods: In this international (28 sites) multicenter prospective RCT, patients (pts) were included if they were administrated anthracyclines and had another risk factor for HF. They were randomly allocated into undergoing GLS-guided CPT for 〉 12% relative reduction in GLS or EF-guided CPT for 〉 10% absolute reduction of EF. Primary endpoint was the change in EF (ΔEF) from baseline to 3 years by 3D echocardiography. Results: Among 331 pts enrolled, 255 (77%, 60±16 years, 95% women) completed 3-year follow-up (123 in EF-guided group and 132 in GLS-guided). Most had breast cancer (236, 93%), 67 (26%) with hypertension and 32 (13%) with diabetes mellitus. A regimen of anthracycline and trastuzumab was the most common chemotherapy regimen (84%). The baseline LVEF was 61±4% with GLS of 20.7±2.3% in the entire population. CPT was administrated in 18 pts (15%) in EF-guided and 41 (31%) in GLS-guided (p=0.02). Most patients showed recovery in EF and GLS after chemotherapy (Figure). ΔEF was -2.0±4.8 in EF-guided and -1.4±5.4 in GLS-guided (p=0.25), but LVEF at 3 years in EF-guided was lower than that of GLS-guided (58.0±5.6% vs 59±4.9%, p=0.043). Ten pts in EF-guided developed CTRCD, and 6 in GLS-guided (p=0.24). Conclusions: Most of the enrolled pts were taking potentially cardiotoxic chemotherapy for breast cancer. Almost all improved LV function over 3 years, and although GLS-guided CPT was associated with higher EF at 3 years, there was no difference in ΔEF compared with EF-guided surveillance.
    Type of Medium: Online Resource
    ISSN: 0009-7322 , 1524-4539
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2022
    detail.hit.zdb_id: 1466401-X
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  • 4
    In: Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 132, No. suppl_3 ( 2015-11-10)
    Abstract: Introduction: The management of patients with non-valvular atrial fibrillation (NVAF) and low CHA2DS2-VASc scores remains controversial. Left atrial appendage (LAA) function is a known risk factor for embolisms. Hypothesis: In this study, we aimed to investigate the value of the relationship between transthoracic echocardiography (TTE) parameters and LAA function in low-risk (CHA2DS2-VASc score, 0-1) patients with NVAF. Methods: This retrospective study included 370 consecutive patients with NVAF who underwent both TTE and transesophageal echocardiography (TEE). The LAA emptying flow velocity was assessed using TEE. We established that an LAA emptying flow velocity of 〈 25 cm/s was associated with a high risk of thrombus formation. Results: Of the 370 patients, 146 (40%) had a CHA2DS2-VASc score of 0-1. These patients with low-risk NVAF were further stratified into the low-flow (LAA emptying flow velocity 〈 25 cm/s, n = 19) and normal-flow (LAA emptying flow velocity ≥ 25 cm/s, n = 127) groups according to LAA function (atrial fibrillation during TEE: n = 63). The age, gender, CHA2DS2-VASc score, and left ventricular ejection fraction did not differ between the two groups. The low-flow group had a significantly greater left atrial volume index (LAVI) than the normal-flow group (51.6 ± 19.8 vs. 32.3 ± 12.1 ml/m2, p 〈 0.01). A LAVI of 37.8 ml/m2 predicted a LAA emptying flow velocity of 〈 25 cm/s with a sensitivity of 73% and specificity of 83% among patients with low-risk atrial fibrillation (area under the curve, 0.818, p 〈 0.001, Figure). Conclusions: Approximately 13% of patients with NVAF and CHA2DS2-VASc score of 0-1 had reduced LAA emptying flow velocity as well as left atrial enlargement. The use of LAVI may improve the current embolism risk stratification system among these patients.
    Type of Medium: Online Resource
    ISSN: 0009-7322 , 1524-4539
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2015
    detail.hit.zdb_id: 1466401-X
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  • 5
    In: Journal of the American Heart Association, Ovid Technologies (Wolters Kluwer Health), Vol. 10, No. 18 ( 2021-09-21)
    Abstract: Current guidelines recommend at least 6 months of antithrombotic therapy and antibiotic prophylaxis after septal‐occluding device deployment in transcatheter closure of atrial septal defect. It has been estimated that it takes ≈6 months for complete neo‐endothelialization; however, neo‐endothelialization has not previously been assessed in vivo in humans. Methods and Results The neointimal coverage of septal occluder devices was evaluated 6 months after implantation in 15 patients by angioscopy from the right atrium. Each occluder surface was divided into 9 areas; the levels of endothelialization in each area were semiquantitatively assessed by 4‐point grades. Device neo‐endothelialization was sufficient in two thirds of patients, but insufficient in one third. In the comparison between patients with sufficiently endothelialized devices of average grade score ≥2 (good endothelialization group, n=10) and those with poorly endothelialized devices of average grade score 〈 2 (poor endothelialization group, n=5), those in the poor endothelialization group had larger devices deployed (27.0 mm [25.0–31.5 mm] versus 17.0 mm [15.6–22.5 mm] , respectively) and progressive right heart dilatation. The endothelialization was poorer around the central areas. Moreover, the prevalence of thrombus formation on the devices was higher in the poorly endothelialized areas than in the sufficiently endothelialized areas (Grade 0, 94.1%; Grade 1, 63.2%; Grade 2, 0%; Grade 3, 1.6%). Conclusions Neo‐endothelialization on the closure devices varied 6 months after implantation. Notably, poor endothelialization and thrombus attachment were observed around the central areas and on the larger devices.
    Type of Medium: Online Resource
    ISSN: 2047-9980
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
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  • 6
    In: Circulation, Ovid Technologies (Wolters Kluwer Health), Vol. 130, No. suppl_2 ( 2014-11-25)
    Abstract: Introduction: We have developed the new index of left ventricular longitudinal axis shortening (LAS) using contrast left ventriculography (LVG) during Cardiac Catheterization. Objective: The purpose of this study was to evaluate whether LAS provided additive prognostic information beyond traditional ejection fraction (EF). Methods: Nine hundred and ninety eight consecutive patients who had undergone conventional catheters based on clinical indications between 2009 and 2012 were followed retrospectively from our clinical chart. LAS was assessed from LVG (see Figure). Cox regression analysis was used to predict the endpoints of all-cause mortality and congestive heart failure (HF). Receiver operating characteristic curve analysis was used for the discrimination ability of LAS for event beyond traditional EF. Results: Sixty-two events were observed during the follow-up period for mean 3.1±1.1 years. In the adjusted model, the endpoints were associated with lower LAS (hazard ratio 0.89; 95% confidence interval 0.80 to 0.90 per 1% LAS increment, p=0.036) after adjustment for the Framingham risk score, history of myocardial infarction and HF, number of stenosis vessels, EF, left ventricular end-diastolic pressure and Log brain natriuretic peptide (BNP). LAS improved ROC area by 7% compared with EF, and LAS combined with EF and log BNP by 13% (see Figure). Conclusion: LAS by LVG can be a predictor of death and congestive HF and appears to be a better parameter than traditional EF in patients who underwent invasive coronary angiography for clinical indications.
    Type of Medium: Online Resource
    ISSN: 0009-7322 , 1524-4539
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2014
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  • 7
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2011
    In:  Circulation: Cardiovascular Imaging Vol. 4, No. 4 ( 2011-07), p. 392-398
    In: Circulation: Cardiovascular Imaging, Ovid Technologies (Wolters Kluwer Health), Vol. 4, No. 4 ( 2011-07), p. 392-398
    Abstract: Recent studies have suggested acute mitral regurgitation (MR) as a potentially serious complication of takotsubo cardiomyopathy (TTC); however, the mechanism of acute MR in TTC remains unclear. The aim of this study was to elucidate the mechanisms of acute MR in patients with TTC. Methods and Results— Echocardiography was used to assess the mitral valve and left ventricular outflow tract (LVOT) pressure gradient in 47 patients with TTC confirmed by coronary angiography and left ventriculography. Mitral valve assessment included coaptation distance, tenting area at mid systole in the long-axis view, and systolic anterior motion of the mitral valve (SAM). Of the study patients, 12 (25.5%) had significant (moderate or severe) acute MR. In patients with acute MR versus those without acute MR, we found lower ejection fraction (31.3±6.2% versus 41.5±10.6%, P =0.001) and higher systolic pulmonary artery pressure (49.3±7.4 versus 35.5±8.9 mm Hg, P 〈 0.001). Moreover, 6 of the 12 patients with acute MR had SAM, with peak LVOT pressure gradient 〉 20 mm Hg (average peak LVOT pressure gradient, 81.3±35.8 mm Hg). The remaining 6 patients with acute MR revealed significantly greater mitral valve coaptation distance (10.9±1.6 versus 7.8±1.4 mm, P 〈 0.001) and tenting area (2.1±0.4 versus 0.95±0.25 cm 2 , P 〈 0.001) than those without acute MR. A multivariate analysis revealed that SAM and tenting area were independent predictors of acute MR in patients with TTC (all P 〈 0.001). Conclusions— SAM and tethering of the mitral valve are independent mechanisms with differing pathophysiology that can lead to acute MR in patients with TTC.
    Type of Medium: Online Resource
    ISSN: 1941-9651 , 1942-0080
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2011
    detail.hit.zdb_id: 2440475-5
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  • 8
    In: Circulation: Cardiovascular Imaging, Ovid Technologies (Wolters Kluwer Health), Vol. 5, No. 5 ( 2012-09), p. 621-627
    Abstract: The shape of right ventricular outflow tract (RVOT) has been assumed to be circular. The aim of this study was to assess RVOT morphology using 3-dimensional transesophageal echocardiography (3D TEE). Methods and Results— This prospective study included 114 patients who underwent 3D TEE. Two-dimensional (2D) TEE measured maximum and minimum RVOT diameters (RVOTD max and min) during a cardiac cycle. 3D TEE determined RVOT area (RVOTA) max and min, RVOT fractional area change, and RVOT shape index (RVOTSI; vertical/horizontal RVOTD). Cardiac output (CO) was calculated using 2D TEE, 3D TEE, and a Swan-Ganz catheter in 23 patients. All patients were classified into group 1 (RVOTSI ≤1) or group 2 (RVOTSI 〉 1) based on the RVOT shapes. The mean RVOTSIs were 0.84±0.21(max) and 0.82±0.20 (min). Only 17 patients (14.9%) had circular RVOT (RVOTSI: 0.95–1.05); 82 patients (71.9%) were categorized into group 1 and 32 patients (28.1%) into group 2. 2D TEE, compared with 3D TEE, underestimated RVOTA max and min (both P 〈 0.001). CO with 3D TEE had better agreement with CO with a catheter than CO with 2D TEE ( r =0.83 and 0.53, respectively). Conclusions— 3D TEE revealed that RVOT geometry was not generally circular but oval with 2 different types. Because of the detailed morphological information of RVOT, 3D TEE could provide more accurate assessment of CO than 2D TEE.
    Type of Medium: Online Resource
    ISSN: 1941-9651 , 1942-0080
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2012
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  • 9
    In: Medicine, Ovid Technologies (Wolters Kluwer Health), Vol. 97, No. 12 ( 2018-03), p. e0246-
    Type of Medium: Online Resource
    ISSN: 0025-7974
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2018
    detail.hit.zdb_id: 2049818-4
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