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Unsupervised Cluster Analysis Reveals Different Phenotypes in Patients after Transcatheter Aortic Valve Replacement 无监督聚类分析揭示经导管主动脉瓣置换术后患者的不同表型
Pub Date : 2023-12-20 DOI: 10.1093/ehjopen/oead136
K. Kusunose, Takumasa Tsuji, Y. Hirata, Tomonori Takahashi, Masataka Sata, Kimi Sato, Noor K Albakaa, Tomoko Ishizu, Jun’ichi Kotoku, Yoshihiro Seo
The aim of this study was to identify phenotypes with potential prognostic significance in aortic stenosis (AS) patients post-transcatheter aortic valve replacement (TAVR) through a clustering approach. This multicenter retrospective study included 1,365 patients with severe AS who underwent TAVR between January 2015 and March 2019. Among demographics, laboratory, and echocardiography parameters, 20 variables were selected through dimension reduction and used for unsupervised clustering. Phenotypes and outcomes were compared between clusters. Patients were randomly divided into a derivation cohort (n = 1092: 80%) and a validation cohort (n = 273: 20%). Three clusters with markedly different features were identified. Cluster 1 was associated predominantly with elderly age, a high aortic valve gradient, and left ventricular (LV) hypertrophy; cluster 2 consisted of preserved LV ejection fraction, larger aortic valve area, and high blood pressure; and cluster 3 demonstrated tachycardia and low flow/low gradient AS. Adverse outcomes differed significantly among clusters during a median of 2.2 years of follow-up (P<0.001). After adjustment for clinical and echocardiographic data in a Cox proportional-hazards model, cluster 3 (hazard ratio, 4.18; 95% CI, 1.76-9.94; P=0.001) was associated with increased risk of adverse outcomes. In sequential Cox models, a model based on clinical data and echocardiographic variables (χ2, 18.4) was improved by cluster 3 (χ2, 31.5; P=0.001) in the validation cohort. Unsupervised cluster analysis of patients after TAVR revealed 3 different groups for assessment of prognosis. This provides a new perspective in the categorization of patients after TAVR that considers comorbidities and extravalvular cardiac dysfunction.
本研究旨在通过聚类方法识别主动脉瓣狭窄(AS)患者经导管主动脉瓣置换术(TAVR)后具有潜在预后意义的表型。 这项多中心回顾性研究纳入了2015年1月至2019年3月期间接受TAVR的1365名重度AS患者。在人口统计学、实验室和超声心动图参数中,通过降维筛选出20个变量,并用于无监督聚类。对不同聚类的表型和结果进行了比较。患者被随机分为衍生队列(n = 1092:80%)和验证队列(n = 273:20%)。结果发现了三个具有明显不同特征的群组。群组 1 主要与高龄、主动脉瓣梯度高和左心室肥厚有关;群组 2 包括左心室射血分数保留、主动脉瓣面积较大和高血压;群组 3 表现为心动过速和低流量/低梯度 AS。在中位 2.2 年的随访期间,各组间的不良后果差异显著(P<0.001)。在 Cox 比例危险模型中对临床和超声心动图数据进行调整后,第 3 组(危险比为 4.18;95% CI 为 1.76-9.94;P=0.001)与不良后果风险增加有关。在顺序 Cox 模型中,基于临床数据和超声心动图变量的模型(χ2,18.4)在验证队列中得到了第 3 组的改善(χ2,31.5;P=0.001)。 对 TAVR 术后患者的无监督聚类分析显示,在评估预后时有 3 个不同的组别。这为考虑合并症和瓣膜外心功能不全的 TAVR 术后患者分类提供了新的视角。
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引用次数: 0
Impact of Smoking Initiation age on Nicotine Dependency and Cardiovascular Risk Factors: A Retrospective Cohort Study in Japan 开始吸烟年龄对尼古丁依赖性和心血管风险因素的影响:日本的一项回顾性队列研究
Pub Date : 2023-12-20 DOI: 10.1093/ehjopen/oead135
Swati Mittal, Maki Komiyama, Yuka Ozaki, H. Yamakage, N. Satoh‐Asahara, H. Wada, Akihiro Yasoda, Masafumi Funamoto, Y. Katanasaka, Yoichi Sunagawa, T. Morimoto, M. Akao, M. Abe, Yuko Takahashi, Takeo Nakayama, K. Hasegawa
Initiating smoking in early adolescence results in challenges with smoking cessation and is associated with high risk of cardiovascular disease. Recently, the initiation of smoking has transitioned from adolescence to young adulthood. However, there are few reports on the impact of initiating smoking at a later age. This study investigated the impact of the age of smoking initiation on nicotine dependency, smoking cessation rates, and cardiovascular risk factors, using a cutoff point of 20 years, within the Japanese population. This retrospective cohort study encompassed 1,382 smokers who sought smoking cessation treatment at Kyoto Medical Centre Hospital between 2007 and 2019. Clinical indicators were evaluated by adjusting for age at the time of hospital visit and sex. The smoking cessation rate was further adjusted for treatment medication. The group with a smoking initiation age of <20 years reported a higher number of cigarettes/day (p = 0.002), higher respiratory carbon monoxide levels (p < 0.001), a higher Fagerström test for nicotine Dependence (FTND) score (p < 0.001), and a higher self-rating depression scale score (p = 0.014). They also reported lower diastolic blood pressure (p = 0.020) and a lower successful smoking cessation rate (OR:0.736 95% CI (0.569, 0.951)) than the group with a smoking initiation age of ≥20 years. When smokers were divided into four groups based on the age they started smoking, the FTND score for those who started at 20–21 years was significantly higher than the score for those who started at 22 years or older. In young adulthood, initiating smoking later (beyond 20 years old) was associated with lower nicotine dependency and fewer depressive tendencies, as well as a higher success rate in smoking cessation among Japanese smokers. The results might suggest that raising the legal smoking initiation age from 20 to 22 years old or older could be effective in reducing nicotine dependency in smokers.
青少年时期开始吸烟会给戒烟带来挑战,并与心血管疾病的高风险相关。最近,开始吸烟的年龄已从青少年期过渡到青年期。然而,关于在较晚年龄开始吸烟的影响的报道却很少。本研究以 20 岁为分界点,调查了日本人群中开始吸烟的年龄对尼古丁依赖性、戒烟率和心血管风险因素的影响。 这项回顾性队列研究涵盖了2007年至2019年期间在京都医疗中心医院寻求戒烟治疗的1382名吸烟者。通过调整就诊时的年龄和性别,对临床指标进行了评估。戒烟率根据治疗药物进行了进一步调整。 开始吸烟年龄小于20岁的人群每天吸烟数量较多(p = 0.002),呼吸道一氧化碳水平较高(p < 0.001),法格斯特伦尼古丁依赖测试(FTND)评分较高(p < 0.001),抑郁自评量表评分较高(p = 0.014)。他们的舒张压(p = 0.020)和成功戒烟率(OR:0.736 95% CI (0.569, 0.951))也低于开始吸烟年龄≥20 岁的人群。根据开始吸烟的年龄将吸烟者分为四组,20-21 岁开始吸烟者的 FTND 得分明显高于 22 岁或以上开始吸烟者。 在日本吸烟者中,开始吸烟年龄较晚(超过 20 岁)的人对尼古丁的依赖性较低,抑郁倾向较少,戒烟成功率也较高。研究结果表明,将法定吸烟年龄从 20 岁提高到 22 岁或以上,可以有效降低吸烟者的尼古丁依赖性。
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引用次数: 0
Ticagrelor or prasugrel versus clopidogrel in patients with atrial fibrillation undergoing percutaneous coronary intervention for myocardial infarction 接受经皮冠状动脉介入治疗心肌梗死的心房颤动患者中,替卡格雷或普拉格雷与氯吡格雷的比较
Pub Date : 2023-12-14 DOI: 10.1093/ehjopen/oead134
Sissel J Godtfredsen, K. Kragholm, A. M. Kristensen, T. Bekfani, R. Sørensen, Maurizio Sessa, Christian Torp-Pedersen, Deepak L Bhatt, Manan Pareek
The efficacy and safety of ticagrelor or prasugrel versus clopidogrel in patients with atrial fibrillation (AF) on oral anticoagulation (OAC) undergoing percutaneous coronary intervention (PCI) for myocardial infarction have not been established. Nationwide cohort study of patients on OAC for AF who underwent PCI for myocardial infarction from 2011 through 2019 and were prescribed a P2Y12 inhibitor at discharge. The primary efficacy outcome was major adverse cardiovascular events (MACE), defined as a composite of death from any cause, stroke, recurrent myocardial infarction, or repeat revascularization. The primary safety outcome was cerebral, gastrointestinal, or urogenital bleeding requiring hospitalization. Absolute and relative risks for outcomes at 1 year were calculated through multivariable logistic regression with average treatment effect modeling. Outcomes were standardized for the individual components of CHA2DS2-VASc and HAS-BLED scores as well as type of OAC, aspirin, and proton pump inhibitor use. We included 2259 patients of whom 1918 (84.9%) were prescribed clopidogrel and 341 (15.1%) ticagrelor or prasugrel. The standardized risk of MACE was significantly lower in the ticagrelor or prasugrel group compared with the clopidogrel group (standardized absolute risk, 16.4% vs. 19.4%; relative risk, 0.84, 95% confidence interval, 0.70-0.98; P=0.02), while the risk of bleeding did not differ (standardized absolute risk, 5.5% vs. 5.1%; relative risk, 1.07, 95% confidence interval, 0.73-1.41; P=0.69). In patients with AF on OAC who underwent PCI for myocardial infarction, treatment with ticagrelor or prasugrel versus clopidogrel was associated with reduced ischemic risk, without a concomitantly increased bleeding risk.
对于接受经皮冠状动脉介入治疗(PCI)治疗心肌梗死的口服抗凝药(OAC)的心房颤动(AF)患者,ticagrelor 或 prasugrel 相对于氯吡格雷的疗效和安全性尚未确定。 该研究对 2011 年至 2019 年期间因心肌梗死接受 PCI 治疗并在出院时服用 P2Y12 抑制剂的房颤 OAC 患者进行了全国性队列研究。主要疗效结局为主要心血管不良事件(MACE),定义为任何原因导致的死亡、中风、复发性心肌梗死或重复血管再通的综合结果。主要安全性结果是需要住院治疗的脑出血、胃肠道出血或泌尿系统出血。通过采用平均治疗效果模型的多变量逻辑回归计算出了1年后的绝对风险和相对风险。结果根据 CHA2DS2-VASc 和 HAS-BLED 评分的各个组成部分以及 OAC、阿司匹林和质子泵抑制剂的使用类型进行了标准化。 我们纳入了 2259 例患者,其中 1918 例(84.9%)处方氯吡格雷,341 例(15.1%)处方替卡格雷或普拉格雷。与氯吡格雷组相比,替卡格雷或普拉格雷组的MACE标准化风险显著降低(标准化绝对风险,16.4% vs. 19.4%;相对风险,0.84,95%置信区间,0.70-0.98;P=0.02),而出血风险没有差异(标准化绝对风险,5.5% vs. 5.1%;相对风险,1.07,95%置信区间,0.73-1.41;P=0.69)。 对于使用 OAC 并因心肌梗死接受 PCI 治疗的房颤患者,使用替卡格雷或普拉格雷与使用氯吡格雷相比,可降低缺血风险,但不会同时增加出血风险。
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引用次数: 0
Phenotyping of heart failure with preserved ejection faction using electronic health records and echocardiography. 利用电子健康记录和超声心动图对保留射血功能型心力衰竭进行表型分析。
Pub Date : 2023-12-14 eCollection Date: 2024-01-01 DOI: 10.1093/ehjopen/oead133
Morgane Pierre-Jean, Benjamin Marut, Elizabeth Curtis, Elena Galli, Marc Cuggia, Guillaume Bouzillé, Erwan Donal

Aims: Patients presenting symptoms of heart failure with preserved ejection fraction (HFpEF) are not a homogenous population. Different phenotypes can differ in prognosis and optimal management strategies. We sought to identify phenotypes of HFpEF by using the medical information database from a large university hospital centre using machine learning.

Methods and results: We explored the use of clinical variables from electronic health records in addition to echocardiography to identify different phenotypes of patients with HFpEF. The proposed methodology identifies four phenotypic clusters based on both clinical and echocardiographic characteristics, which have differing prognoses (death and cardiovascular hospitalization).

Conclusion: This work demonstrated that artificial intelligence-derived phenotypes could be used as a tool for physicians to assess risk and to target therapies that may improve outcomes.

目的:出现射血分数保留型心力衰竭(HFpEF)症状的患者并不是一个单一的群体。不同的表型在预后和最佳治疗策略上可能存在差异。我们试图利用一个大型大学医院中心的医疗信息数据库,通过机器学习来识别 HFpEF 的表型:除了超声心动图外,我们还探索了利用电子健康记录中的临床变量来识别高频心动过速患者的不同表型。所提出的方法根据临床和超声心动图特征识别出四个表型集群,它们的预后(死亡和心血管住院)各不相同:这项研究表明,人工智能衍生的表型可作为医生评估风险和针对性治疗的工具,从而改善预后。
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引用次数: 0
Pericyte loss initiates microvascular dysfunction in the development of diastolic dysfunction 在舒张功能障碍的发展过程中,微血管功能障碍的始作俑者是毛细血管的损失
Pub Date : 2023-12-09 DOI: 10.1093/ehjopen/oead129
S. Simmonds, Mandy OJ Grootaert, I. Cuijpers, P. Carai, Nadéche Geuens, M. Herwig, Pieter Baatsen, Nazha Hamdani, A. Luttun, Stephane Heymans, E. A. Jones
Microvascular dysfunction has been proposed to drive heart failure with preserved ejection fraction (HFpEF), but the initiating molecular and cellular events are largely unknown. Our objective was to determine when microvascular alterations in HFpEF begin, how they contribute to disease progression, and how pericyte dysfunction plays a role herein. Microvascular dysfunction, characterised by inflammatory activation, loss of junctional barrier function and altered pericyte-endothelial crosstalk, was assessed with respect to the development of cardiac dysfunction, in the Zucker fatty and spontaneously hypertensive (ZSF1) obese rat model of HFpEF at three time points: 6, 14, and 21 weeks of age. Pericyte loss was the earliest and strongest microvascular change, occurring before prominent echocardiographic signs of diastolic dysfunction were present. Pericytes were shown to be less proliferative and had a disrupted morphology at 14 weeks in the obese ZSF1 animals, who also exhibited an increased capillary luminal diameter and disrupted endothelial junctions. Microvascular dysfunction was also studied in a mouse model of chronic reduction in capillary pericyte coverage (PDGF-Bret/ret), which spontaneously developed many aspects of diastolic dysfunction. Pericytes exposed to oxidative stress in vitro showed downregulation of cell cycle associated pathways, and induced a pro-inflammatory state in endothelial cells upon co-culture. We propose pericytes are important for maintaining endothelial cell function, where loss of pericytes enhances the reactivity of endothelial cells to inflammatory signals and promotes microvascular dysfunction, thereby accelerating the development of HFpEF.
微血管功能障碍已被提出驱动心力衰竭与保留射血分数(HFpEF),但启动的分子和细胞事件在很大程度上是未知的。我们的目的是确定HFpEF的微血管改变何时开始,它们如何促进疾病进展,以及周细胞功能障碍如何在其中发挥作用。在6、14和21周龄的Zucker脂肪和自发性高血压(ZSF1)肥胖大鼠HFpEF模型中,研究人员在三个时间点评估了微血管功能障碍的发展情况,其特征是炎症激活、连接屏障功能丧失和周细胞内皮相互作用改变。周细胞丢失是最早和最强烈的微血管改变,发生在明显的舒张功能障碍的超声心动图迹象出现之前。在肥胖的ZSF1动物中,周细胞在14周时增殖性降低,形态破坏,毛细血管管腔直径增加,内皮连接破坏。微血管功能障碍也在毛细血管周细胞覆盖(PDGF-Bret/ret)慢性减少的小鼠模型中进行了研究,该模型自发地发展为舒张功能障碍的许多方面。体外氧化应激下的周细胞表现出细胞周期相关通路的下调,并在共培养时诱导内皮细胞的促炎状态。我们认为周细胞对于维持内皮细胞的功能很重要,周细胞的缺失增强了内皮细胞对炎症信号的反应性,促进了微血管功能障碍,从而加速了HFpEF的发展。
{"title":"Pericyte loss initiates microvascular dysfunction in the development of diastolic dysfunction","authors":"S. Simmonds, Mandy OJ Grootaert, I. Cuijpers, P. Carai, Nadéche Geuens, M. Herwig, Pieter Baatsen, Nazha Hamdani, A. Luttun, Stephane Heymans, E. A. Jones","doi":"10.1093/ehjopen/oead129","DOIUrl":"https://doi.org/10.1093/ehjopen/oead129","url":null,"abstract":"\u0000 \u0000 \u0000 Microvascular dysfunction has been proposed to drive heart failure with preserved ejection fraction (HFpEF), but the initiating molecular and cellular events are largely unknown. Our objective was to determine when microvascular alterations in HFpEF begin, how they contribute to disease progression, and how pericyte dysfunction plays a role herein.\u0000 \u0000 \u0000 \u0000 Microvascular dysfunction, characterised by inflammatory activation, loss of junctional barrier function and altered pericyte-endothelial crosstalk, was assessed with respect to the development of cardiac dysfunction, in the Zucker fatty and spontaneously hypertensive (ZSF1) obese rat model of HFpEF at three time points: 6, 14, and 21 weeks of age. Pericyte loss was the earliest and strongest microvascular change, occurring before prominent echocardiographic signs of diastolic dysfunction were present. Pericytes were shown to be less proliferative and had a disrupted morphology at 14 weeks in the obese ZSF1 animals, who also exhibited an increased capillary luminal diameter and disrupted endothelial junctions. Microvascular dysfunction was also studied in a mouse model of chronic reduction in capillary pericyte coverage (PDGF-Bret/ret), which spontaneously developed many aspects of diastolic dysfunction. Pericytes exposed to oxidative stress in vitro showed downregulation of cell cycle associated pathways, and induced a pro-inflammatory state in endothelial cells upon co-culture.\u0000 \u0000 \u0000 \u0000 We propose pericytes are important for maintaining endothelial cell function, where loss of pericytes enhances the reactivity of endothelial cells to inflammatory signals and promotes microvascular dysfunction, thereby accelerating the development of HFpEF.\u0000","PeriodicalId":93995,"journal":{"name":"European heart journal open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138586065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changes in Vascular Function and Correlation with Cardiotoxicity in Women with Newly Diagnosed Breast Cancer 新诊断乳腺癌妇女血管功能的变化及其与心脏毒性的相关性
Pub Date : 2023-12-08 DOI: 10.1093/ehjopen/oead130
A. Hazim, Lara F Nhola, Vidur Kailash, Song Zhang, Nicole P. Sandhu, Amir Lerman, C. Loprinzi, K. Ruddy, H. Villarraga, Bradley Lewis, Joerg Herrmann
The objective of this study was to assess the effect of HER2-directed therapy (HER2-Tx) on peripheral vasoreactivity and its correlation with cardiac function changes and the additive effects of anthracycline/cyclophosphamide (AC) therapy and baseline cardiovascular risk. Single-center, prospective cohort study of women with newly diagnosed stage 1-3 HER2-positive breast cancer undergoing HER2-Tx +/- AC. All participants underwent baseline and three-monthly evaluations with Endo-Peripheral Arterial Tonometry (Endo-PAT), vascular biomarkers (C-type natriuretic peptide (CNP) and neuregulin-1 beta (NRG-1β)), and echocardiography. Cardiotoxicity was defined as a decrease in the left ventricular ejection fraction (LVEF) of >10% to a value <53%. Of the 47 patients enrolled, 20 (43%) received AC in addition to HER2-Tx. Deterioration of reactive hyperemia index (RHI) on Endo-PAT by ≥20% was more common in patients receiving HER-Tx plus AC than HER2-Tx alone (65% vs 22%; p=0.003). A decrease in CNP and log NRG-1β levels by 1 standard deviation did not differ significantly between the AC and non-AC groups (CNP: 20.0% vs 7.4%; p=0.20 and NRG-1β: 15% vs 11%; p=0.69) nor did GLS (35% vs 37%; p=0.89). Patients treated with AC had a significantly lower 3D GE LVEF than non-AC recipients as early as 3 months after exposure (mean 59.3 % (SD 3) vs. 63.8 (SD 4); p=0.02). RHI and GLS were the only parameters correlating with LVEF change. Combination therapy with AC, but not HER2-Tx alone, leads to a decline in peripheral vascular and cardiac function. Larger studies will need to define more precisely the causal correlation between vascular and cardiac function changes in cancer patients.
本研究的目的是评估her2定向治疗(HER2-Tx)对外周血管反应性的影响及其与心功能变化的相关性,以及蒽环类药物/环磷酰胺(AC)治疗的叠加效应和基线心血管风险。新诊断为1-3期her2阳性乳腺癌的女性接受HER2-Tx +/- AC的单中心前瞻性队列研究。所有参与者接受基线和3个月的外周动脉压测仪(endodo - pat)、血管生物标志物(c型利钠肽(CNP)和神经调节蛋白-1β (NRG-1β)和超声心动图评估。心脏毒性定义为左心室射血分数(LVEF)下降>10%至<53%。在纳入的47例患者中,20例(43%)在接受HER2-Tx治疗的同时接受了AC治疗。在接受HER-Tx联合AC治疗的患者中,Endo-PAT反应性充血指数(RHI)恶化≥20%的情况比单独接受HER2-Tx治疗的患者更常见(65% vs 22%;p = 0.003)。CNP和log NRG-1β水平降低1个标准差在AC组和非AC组之间无显著差异(CNP: 20.0% vs 7.4%;p=0.20, NRG-1β: 15% vs 11%;p=0.69), GLS也没有(35% vs 37%;p = 0.89)。早在接触AC后3个月,接受AC治疗的患者的3D GE LVEF就显著低于未接受AC治疗的患者(平均59.3% (SD 3) vs. 63.8 (SD 4);p = 0.02)。RHI和GLS是唯一与LVEF变化相关的参数。与AC联合治疗,而不是单独使用HER2-Tx,会导致周围血管和心脏功能下降。更大规模的研究需要更精确地定义癌症患者血管和心脏功能变化之间的因果关系。
{"title":"Changes in Vascular Function and Correlation with Cardiotoxicity in Women with Newly Diagnosed Breast Cancer","authors":"A. Hazim, Lara F Nhola, Vidur Kailash, Song Zhang, Nicole P. Sandhu, Amir Lerman, C. Loprinzi, K. Ruddy, H. Villarraga, Bradley Lewis, Joerg Herrmann","doi":"10.1093/ehjopen/oead130","DOIUrl":"https://doi.org/10.1093/ehjopen/oead130","url":null,"abstract":"\u0000 \u0000 \u0000 The objective of this study was to assess the effect of HER2-directed therapy (HER2-Tx) on peripheral vasoreactivity and its correlation with cardiac function changes and the additive effects of anthracycline/cyclophosphamide (AC) therapy and baseline cardiovascular risk.\u0000 \u0000 \u0000 \u0000 Single-center, prospective cohort study of women with newly diagnosed stage 1-3 HER2-positive breast cancer undergoing HER2-Tx +/- AC. All participants underwent baseline and three-monthly evaluations with Endo-Peripheral Arterial Tonometry (Endo-PAT), vascular biomarkers (C-type natriuretic peptide (CNP) and neuregulin-1 beta (NRG-1β)), and echocardiography. Cardiotoxicity was defined as a decrease in the left ventricular ejection fraction (LVEF) of >10% to a value <53%. Of the 47 patients enrolled, 20 (43%) received AC in addition to HER2-Tx. Deterioration of reactive hyperemia index (RHI) on Endo-PAT by ≥20% was more common in patients receiving HER-Tx plus AC than HER2-Tx alone (65% vs 22%; p=0.003). A decrease in CNP and log NRG-1β levels by 1 standard deviation did not differ significantly between the AC and non-AC groups (CNP: 20.0% vs 7.4%; p=0.20 and NRG-1β: 15% vs 11%; p=0.69) nor did GLS (35% vs 37%; p=0.89). Patients treated with AC had a significantly lower 3D GE LVEF than non-AC recipients as early as 3 months after exposure (mean 59.3 % (SD 3) vs. 63.8 (SD 4); p=0.02). RHI and GLS were the only parameters correlating with LVEF change.\u0000 \u0000 \u0000 \u0000 Combination therapy with AC, but not HER2-Tx alone, leads to a decline in peripheral vascular and cardiac function. Larger studies will need to define more precisely the causal correlation between vascular and cardiac function changes in cancer patients.\u0000","PeriodicalId":93995,"journal":{"name":"European heart journal open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138589693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Response to Kataoka et al.'s 'How to assess haemodynamic impact of atrial fibrillation'. 对 Kataoka 等人的 "如何评估心房颤动对血流动力学的影响 "的回应。
Pub Date : 2023-12-08 eCollection Date: 2023-11-01 DOI: 10.1093/ehjopen/oead126
Henrik Almroth, Lars O Karlsson, Carl-Johan Carlhäll, Emmanouil Charitakis
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引用次数: 0
Cerebral blood flow and neurocognition in patients undergoing TAVR for severe aortic stenosis 接受 TAVR 治疗重度主动脉瓣狭窄患者的脑血流量和神经认知能力
Pub Date : 2023-12-07 DOI: 10.1093/ehjopen/oead124
R. Lazar, T. Myers, T. Gropen, M. Leesar, James Davies, A. Gerstenecker, Amani M. Norling, M. Pavol, R. Marshall, S. Kodali
Aortic valve stenosis (AS) results in higher systolic pressure to overcome resistance from the stenotic valve, leading to heart failure and decline in cardiac output. There has been no assessment of cerebral blood flow (CBF) association with neurocognition in AS, or the effects of valve replacement. The goal was to determine if AS is associated with altered cerebral hemodynamics and impaired neurocognition, and whether transcatheter aortic valve replacement (TAVR) improves hemodynamics and cognition. In 42 patients with planned TAVR, transcranial Doppler (TCD) assessed bilateral MCA mean flow velocity (MFV); abnormality was < 34.45 cm/sec. The neurocognitive battery assessed memory, language, attention, visual-spatial skills, and executive function, yielding a composite Z-score. Impairment was <1.5 SDs below the normative mean. The mean age was 78 years, 59%M, and the mean valve gradient was 46.87mm/Hg. Mean follow-up was 36 days post-TAVR (range 27 - 55). Pre-TAVR, the mean MFV was 42.36 cm/sec (SD=10.17), and the mean cognitive Z-score was -0.22 SD’s (range -1.99 to 1.08) below the normative mean. Among the 34 patients who returned after TAVR, the MFV was 41.59 cm/sec (SD=10.42), not different from baseline (p=0.66, 2.28-3.67). Post-TAVR average Zscores were 0.05 SDs above the normative mean, not meeting the pre-specified threshold for a clinically significant 0.5 SD change. Among patients with severe AS, there was little impairment of MFV on TCD and no correlation with cognition. TAVR did not affect MFV or cognition. Assumptions about diminished CBF and improvement after TAVR were not supported.
主动脉瓣狭窄(AS)导致更高的收缩压以克服狭窄瓣膜的阻力,导致心力衰竭和心输出量下降。目前还没有评估脑血流量(CBF)与AS患者神经认知的关系,也没有评估瓣膜置换术的效果。目的是确定AS是否与脑血流动力学改变和神经认知受损有关,以及经导管主动脉瓣置换术(TAVR)是否改善血流动力学和认知。在42例计划TAVR患者中,经颅多普勒(TCD)评估双侧MCA平均血流速度(MFV);异常< 34.45 cm/sec。神经认知电池评估记忆、语言、注意力、视觉空间技能和执行功能,得出综合z分数。损伤值低于标准平均值<1.5 SDs。平均年龄78岁,59%M,平均瓣膜梯度46.87mm/Hg。平均随访时间为tavr后36天(范围27 - 55天)。tavr前,平均MFV为42.36 cm/sec (SD=10.17),平均认知Z-score比标准平均值低-0.22 SD(范围-1.99 ~ 1.08)。在34例TAVR术后返回的患者中,MFV为41.59 cm/sec (SD=10.42),与基线无差异(p=0.66, 2.28-3.67)。tavr后平均zscore比规范平均值高0.05个标准差,未达到预先设定的具有临床意义的0.5个标准差变化阈值。在严重AS患者中,MFV对TCD的损害很小,与认知无关。TAVR不影响MFV或认知。不支持TAVR后脑血流减少和改善的假设。
{"title":"Cerebral blood flow and neurocognition in patients undergoing TAVR for severe aortic stenosis","authors":"R. Lazar, T. Myers, T. Gropen, M. Leesar, James Davies, A. Gerstenecker, Amani M. Norling, M. Pavol, R. Marshall, S. Kodali","doi":"10.1093/ehjopen/oead124","DOIUrl":"https://doi.org/10.1093/ehjopen/oead124","url":null,"abstract":"\u0000 \u0000 \u0000 Aortic valve stenosis (AS) results in higher systolic pressure to overcome resistance from the stenotic valve, leading to heart failure and decline in cardiac output. There has been no assessment of cerebral blood flow (CBF) association with neurocognition in AS, or the effects of valve replacement. The goal was to determine if AS is associated with altered cerebral hemodynamics and impaired neurocognition, and whether transcatheter aortic valve replacement (TAVR) improves hemodynamics and cognition.\u0000 \u0000 \u0000 \u0000 In 42 patients with planned TAVR, transcranial Doppler (TCD) assessed bilateral MCA mean flow velocity (MFV); abnormality was < 34.45 cm/sec. The neurocognitive battery assessed memory, language, attention, visual-spatial skills, and executive function, yielding a composite Z-score. Impairment was <1.5 SDs below the normative mean.\u0000 \u0000 \u0000 \u0000 The mean age was 78 years, 59%M, and the mean valve gradient was 46.87mm/Hg. Mean follow-up was 36 days post-TAVR (range 27 - 55). Pre-TAVR, the mean MFV was 42.36 cm/sec (SD=10.17), and the mean cognitive Z-score was -0.22 SD’s (range -1.99 to 1.08) below the normative mean. Among the 34 patients who returned after TAVR, the MFV was 41.59 cm/sec (SD=10.42), not different from baseline (p=0.66, 2.28-3.67). Post-TAVR average Zscores were 0.05 SDs above the normative mean, not meeting the pre-specified threshold for a clinically significant 0.5 SD change.\u0000 \u0000 \u0000 \u0000 Among patients with severe AS, there was little impairment of MFV on TCD and no correlation with cognition. TAVR did not affect MFV or cognition. Assumptions about diminished CBF and improvement after TAVR were not supported.\u0000","PeriodicalId":93995,"journal":{"name":"European heart journal open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138593259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mapping microarchitectural degeneration in the dilated ascending aorta with ex vivo diffusion tensor imaging 利用体外弥散张量成像绘制扩张升主动脉的微结构变性图
Pub Date : 2023-12-05 DOI: 10.1093/ehjopen/oead128
Mofei Wang, Justin A. Ching-Johnson, Hao Yin, C. O’Neil, Alex X. Li, Michael W. A. Chu, Robert Bartha, J. G. Pickering
Thoracic aortic aneurysms (TAAs) carry a risk of catastrophic dissection. Current strategies to evaluate this risk entail measuring aortic diameter but do not image medial degeneration, the cause of TAAs. We sought to determine if the advanced magnetic resonance imaging acquisition strategy, diffusion tensor imaging (DTI), could delineate medial degeneration in the ascending thoracic aorta. Porcine ascending aortas were subjected to enzyme microinjection which yielded local aortic medial degeneration. These lesions were detected by DTI, using a 9.4T MRI scanner, based on tensor disorientation, disrupted diffusion tracts, and altered DTI metrics. High-resolution spatial analysis revealed that fractional anisotropy positively correlated, and mean and radial diffusivity inversely correlated, with SMC and elastin content (P<0.001 for all). Ten operatively harvested human ascending aorta samples (mean subject age 61.6±13.3 years, diameter range 29-64 mm) showed medial pathology that was more diffuse and more complex. Nonetheless, DTI metrics within an aorta spatially correlated with SMC, elastin and, especially, glycosaminoglycan (GAG) content. Moreover, there were inter-individual differences in slice-averaged DTI metrics. GAG accumulation and elastin degradation were captured by reduced fractional anisotropy (R2=0.47, P=0.043; R2=0.76, P=0.002), with GAG accumulation also captured by increased mean diffusivity (R2=0.46, P=0.045) and increased radial diffusivity (R2=0.60, P=0.015). Ex vivo high-field DTI can detect ascending aorta medial degeneration and can differentiate TAAs in accordance with their histopathology, especially elastin and GAG changes. This non-destructive window into aortic medial microstructure raises prospects for probing the risks of TAAs beyond lumen dimensions.
胸主动脉瘤(TAAs)有发生灾难性夹层的危险。目前评估这种风险的策略需要测量主动脉直径,但不成像内侧退变,这是TAAs的原因。我们试图确定是否先进的磁共振成像采集策略,扩散张量成像(DTI),可以描绘内侧退变在胸升主动脉。对猪升主动脉进行酶显微注射,造成局部主动脉内侧退变。基于张量定向障碍、扩散束破坏和DTI指标改变,使用9.4T MRI扫描仪通过DTI检测这些病变。高分辨率空间分析显示,分数各向异性与SMC和弹性蛋白含量呈正相关,平均扩散率和径向扩散率呈负相关(均P<0.001)。10例手术采集的人升主动脉标本(平均年龄61.6±13.3岁,直径29-64 mm)内侧病变更广泛、更复杂。尽管如此,主动脉内的DTI指标在空间上与SMC、弹性蛋白,尤其是糖胺聚糖(GAG)含量相关。此外,切片平均DTI指标存在个体间差异。减少分数各向异性捕获GAG积累和弹性蛋白降解(R2=0.47, P=0.043;R2=0.76, P=0.002),平均扩散系数增加(R2=0.46, P=0.045)和径向扩散系数增加(R2=0.60, P=0.015)也捕获了GAG积累。离体高场DTI可检测升主动脉内侧退变,并可根据其组织病理学,特别是弹性蛋白和GAG的变化来区分TAAs。这种观察主动脉内侧微观结构的非破坏性窗口提高了探查腔外TAAs风险的前景。
{"title":"Mapping microarchitectural degeneration in the dilated ascending aorta with ex vivo diffusion tensor imaging","authors":"Mofei Wang, Justin A. Ching-Johnson, Hao Yin, C. O’Neil, Alex X. Li, Michael W. A. Chu, Robert Bartha, J. G. Pickering","doi":"10.1093/ehjopen/oead128","DOIUrl":"https://doi.org/10.1093/ehjopen/oead128","url":null,"abstract":"\u0000 \u0000 \u0000 Thoracic aortic aneurysms (TAAs) carry a risk of catastrophic dissection. Current strategies to evaluate this risk entail measuring aortic diameter but do not image medial degeneration, the cause of TAAs. We sought to determine if the advanced magnetic resonance imaging acquisition strategy, diffusion tensor imaging (DTI), could delineate medial degeneration in the ascending thoracic aorta.\u0000 \u0000 \u0000 \u0000 Porcine ascending aortas were subjected to enzyme microinjection which yielded local aortic medial degeneration. These lesions were detected by DTI, using a 9.4T MRI scanner, based on tensor disorientation, disrupted diffusion tracts, and altered DTI metrics. High-resolution spatial analysis revealed that fractional anisotropy positively correlated, and mean and radial diffusivity inversely correlated, with SMC and elastin content (P<0.001 for all). Ten operatively harvested human ascending aorta samples (mean subject age 61.6±13.3 years, diameter range 29-64 mm) showed medial pathology that was more diffuse and more complex. Nonetheless, DTI metrics within an aorta spatially correlated with SMC, elastin and, especially, glycosaminoglycan (GAG) content. Moreover, there were inter-individual differences in slice-averaged DTI metrics. GAG accumulation and elastin degradation were captured by reduced fractional anisotropy (R2=0.47, P=0.043; R2=0.76, P=0.002), with GAG accumulation also captured by increased mean diffusivity (R2=0.46, P=0.045) and increased radial diffusivity (R2=0.60, P=0.015).\u0000 \u0000 \u0000 \u0000 Ex vivo high-field DTI can detect ascending aorta medial degeneration and can differentiate TAAs in accordance with their histopathology, especially elastin and GAG changes. This non-destructive window into aortic medial microstructure raises prospects for probing the risks of TAAs beyond lumen dimensions.\u0000","PeriodicalId":93995,"journal":{"name":"European heart journal open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138598368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clinical profiling and Outcomes of Viral Myocarditis manifesting with Ventricular Arrhythmias 表现为室性心律失常的病毒性心肌炎的临床特征和治疗结果
Pub Date : 2023-12-05 DOI: 10.1093/ehjopen/oead132
G. Peretto, Simone Sala, E. Carturan, Stefania Rizzo, A. Villatore, G. de Luca, C. Campochiaro, A. Palmisano, D. Vignale, M. De Gaspari, L. Dagna, Antonio Esposito, Cristina Basso, P. Camici, P. Della Bella
Clinical features and risk stratification of patients with viral myocarditis (VM) complicated by ventricular arrhythmias (VA) are incompletely understood. We aim to describe arrhythmia patterns and outcomes in patients with VM and early-onset VA. We present a single center study, enrolling patients with VM proven by endomyocardial biopsy, and evidence of VA within 24 hours of hospitalization. The incidence of major adverse events (MAE), including all-cause death, severe heart failure, advanced atrioventricular blocks, or major VA, was evaluated during a 24-month follow-up (FU), and compared with a matched group of virus-negative myocarditis. Of patients with VM (n=74, mean age 47±16 years, 66% males, LVEF 51±13%), 20 (27%) presented with major VA (VT/VF), and 32 (44%) had polymorphic VA. Patients with polymorphic VA more commonly had evidence of ongoing systemic infection (24/32 vs. 10/42, p=0.004) and experienced greater occurrence of MAE at discharge (15/32 vs. 2/42, p<0.001). However, the incidence of MAE during FU was higher in patients with monomorphic VA compared to those with polymorphic VA (17/42 vs. 2/28, p=0.002). Patients with monomorphic VA displayed frequently signs of chronic cardiomyopathy, and had outcomes comparable with virus-negative myocarditis (Log rank p=0.929). Presentation with VT/VF was independently associated with MAE (at discharge: HR 4.7, 95%CI 1.6-14.0, p=0.005; during FU: HR 6.3, 95%CI 2.3-17.6, p<0.001). In patients with VM, polymorphic VA point to ongoing systemic infection and early adverse outcomes, whereas monomorphic VA suggest chronic cardiomyopathy and greater incidence of MAE during FU. Presentation with VT/VF is independently associated with MAE.
病毒性心肌炎(VM)合并室性心律失常(VA)患者的临床特征和危险分层尚不完全清楚。我们的目的是描述室性心律失常和早发性室性心律失常患者的心律失常模式和结果。我们提出了一项单中心研究,纳入了经心内膜心肌活检证实的室性心律失常患者,并在住院24小时内有室性心律失常的证据。在24个月的随访(FU)期间评估主要不良事件(MAE)的发生率,包括全因死亡、严重心力衰竭、晚期房室传导阻滞或严重房颤(VA),并与匹配的病毒阴性心肌炎组进行比较。VM患者(n=74,平均年龄47±16岁,男性占66%,LVEF为51±13%)中,20例(27%)表现为重度VA (VT/VF), 32例(44%)表现为多形性VA。多形性VA患者通常有持续的全身感染(24/32比10/42,p=0.004),出院时MAE的发生率更高(15/32比2/42,p<0.001)。然而,单型VA患者在FU期间MAE的发生率高于多型VA患者(17/42比2/28,p=0.002)。单型心肌炎患者经常表现出慢性心肌病的体征,其结果与病毒阴性心肌炎相当(Log rank p=0.929)。VT/VF的表现与MAE独立相关(出院时:HR 4.7, 95%CI 1.6-14.0, p=0.005;FU期间:HR 6.3, 95%CI 2.3 ~ 17.6, p<0.001)。在VM患者中,多形态VA表明持续的全身感染和早期不良后果,而单形态VA表明慢性心肌病和FU期间MAE的发生率更高。VT/VF的表现与MAE独立相关。
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European heart journal open
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