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Multiparametric Cardiac Magnetic Resonance Imaging to Discriminate Endomyocardial Biopsy-Proven Chronic Myocarditis From Healed Myocarditis 多参数心脏磁共振成像用于鉴别心内膜活检证实的慢性心肌炎和痊愈的心肌炎
IF 12.8 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-10-01 DOI: 10.1016/j.jcmg.2024.06.009
Jan M. Brendel MD , Karin Klingel MD , Christoph Gräni MD, PhD , Ron Blankstein MD , Jens Kübler MD , Florian Hagen MD , Meinrad Gawaz MD , Konstantin Nikolaou MD , Patrick Krumm MD , Simon Greulich MD

Background

Detecting ongoing inflammation in myocarditis patients has prognostic relevance, but there are limited data on the detection of chronic myocarditis and its differentiation from healed myocarditis.

Objectives

This study sought to assess the performance of cardiac magnetic resonance (CMR) for the detection of ongoing inflammation and the discrimination of chronic myocarditis from healed myocarditis.

Methods

Consecutive patients with persistent symptoms (>30 days) suggestive of myocarditis were prospectively enrolled from a single tertiary center. All patients underwent a multiparametric 1.5-T CMR protocol including biventricular strain, T1/T2 mapping, and late gadolinium enhancement (LGE). Endomyocardial biopsy was chosen for the reference standard diagnosis.

Results

Among 452 consecutive patients, 103 (median age: 50 years; 66 men) had evaluable CMR and cardiopathologic reference diagnosis: 53 (51%) with chronic lymphocytic myocarditis and 50 (49%) with healed myocarditis. T2 mapping as a single parameter showed the best accuracy in detecting chronic myocarditis, if abnormal in ≥3 segments (92%; 95% CI: 85-97), and provided the best discrimination from healed myocarditis, as defined by the area under the receiver-operating characteristic curve (0.87 [95% CI: 0.79-0.93]; P < 0.001), followed by radial peak systolic strain rate of the left ventricle (0.86) and the right ventricle (0.84); T1 mapping (0.64), extracellular volume fraction (0.62), and LGE (0.57). Specificity increased when T2 mapping was combined with elevation of either troponin or C-reactive protein.

Conclusions

A multiparametric CMR protocol allows detection of ongoing myocardial inflammation and discrimination of chronic myocarditis from healed myocarditis, with segmental T2 mapping and biventricular strain analysis showing higher diagnostic accuracy compared with T1 mapping, extracellular volume fraction, and LGE. The use of biomarkers (troponin or C-reactive protein) may improve specificity.
背景:检测心肌炎患者的持续炎症与预后有关:检测心肌炎患者的持续炎症对预后有重要意义,但检测慢性心肌炎并将其与痊愈的心肌炎区分开来的数据有限:本研究旨在评估心脏磁共振(CMR)在检测持续性炎症和区分慢性心肌炎与痊愈的心肌炎方面的性能:方法:一家三级医疗中心前瞻性地招募了连续出现持续症状(超过 30 天)并提示患有心肌炎的患者。所有患者均接受了多参数 1.5-T CMR 检查,包括双心室应变、T1/T2 映射和晚期钆增强(LGE)。心内膜活检是诊断的参考标准:在 452 名连续患者中,103 人(中位年龄:50 岁;66 名男性)具有可评估的 CMR 和心脏病理参考诊断:53 人(51%)患有慢性淋巴细胞性心肌炎,50 人(49%)患有痊愈性心肌炎。如果在≥3个节段中出现异常,T2映射作为单一参数在检测慢性心肌炎方面显示出最佳准确性(92%;95% CI:85-97),并且与痊愈的心肌炎具有最佳区分度,这是由接收者工作特征曲线下面积(0.87[95%CI:0.79-0.93];P < 0.001),其次是左心室(0.86)和右心室(0.84)的径向收缩应变峰值率;T1 映像(0.64)、细胞外容积分数(0.62)和 LGE(0.57)。当 T2 图谱与肌钙蛋白或 C 反应蛋白升高相结合时,特异性会增加:结论:多参数 CMR 方案可检测正在进行的心肌炎症并区分慢性心肌炎和痊愈的心肌炎,与 T1 图谱、细胞外容积分数和 LGE 相比,节段 T2 图谱和双心室应变分析显示出更高的诊断准确性。使用生物标记物(肌钙蛋白或 C 反应蛋白)可提高特异性。
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引用次数: 0
Stress CMR Perfusion Imaging in the Medicare-Eligible Population: Insights From the SPINS Study. 符合医保条件人群的压力CMR灌注成像:SPINS 研究的启示
IF 12.8 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-10-01 DOI: 10.1016/j.jcmg.2024.07.029
Yin Ge, Panagiotis Antiochos, Benedikt Bernhard, Bobak Heydari, Kevin Steel, Scott Bingham, J Ronald Mikolich, Andrew E Arai, W Patricia Bandettini, Amit R Patel, Sujata M Shanbhag, Afshin Farzaneh-Far, John F Heitner, Chetan Shenoy, Steve W Leung, Jorge A Gonzalez, Dipan J Shah, Subha V Raman, Victor A Ferrari, Jeanette Schulz-Menger, Matthias Stuber, Orlando P Simonetti, Raymond Y Kwong

Background: Patients aged ≥65 years account for a disproportionately large portion of cardiovascular (CV) events and pose a challenge for noninvasive detection of coronary artery disease.

Objectives: This study sought to determine the prognostic value of stress cardiac magnetic resonance (CMR) in a Medicare-eligible group of patients in a multicenter setting in the United States.

Methods: From a multicenter U.S. registry, the study identified patients aged ≥65 years who were referred for stress CMR for evaluation of myocardial inducible ischemia. The primary outcome was defined as CV death or nonfatal myocardial infarction, whereas the secondary outcome was defined as any primary outcome, hospitalization for unstable angina, hospitalization for congestive heart failure, and unplanned late coronary artery bypass grafting. The associations of CMR findings with CV outcomes adjusted to clinical risk markers and health care cost spending were determined.

Results: Among 1,780 patients (aged 73 ± 5.7 years; 46% female), study investigators observed 144 primary events and 323 secondary events, over a median follow-up of 4.8 years. The presence of inducible ischemia and late gadolinium enhancement (LGE) was associated with incrementally higher event rates. Patients with neither inducible ischemia nor LGE experienced a <1% annualized rate of primary outcome. In a multivariable model adjusted for CV risk factors, inducible ischemia and LGE maintained an independent association with primary (HR: 2.80 [95% CI: 1.93-4.05]; P < 0.001; and HR: 1.85 [95% CI: 1.21-2.82]; P = 0.004, respectively) and secondary (HR: 2.46 [95% CI: 1.90-3.19]; P < 0.001; and HR: 1.72 [95% CI: 1.30-2.27]; P < 0.001, respectively) outcomes. Rates of revascularization, as well as downstream costs for patients without CMR-detected inducible ischemia, remained low throughout the follow-up period.

Conclusions: In a multicenter cohort of Medicare-eligible older patients, stress CMR was effective in providing risk stratification. (Stress CMR Perfusion Imaging in the United States [SPINS] study; NCT03192891).

背景:年龄≥65 岁的患者在心血管(CV)事件中所占比例过大,给冠状动脉疾病的无创检测带来了挑战:本研究旨在确定应激心脏磁共振(CMR)在美国多中心环境下符合医保条件的患者群体中的预后价值:该研究从美国的一个多中心登记处确定了年龄≥65 岁的患者,这些患者因评估心肌诱发性缺血而转诊接受负荷心脏磁共振检查。主要结果定义为冠心病死亡或非致死性心肌梗死,次要结果定义为任何主要结果、不稳定型心绞痛住院、充血性心力衰竭住院和非计划性晚期冠状动脉旁路移植术。根据临床风险指标和医疗成本支出调整后,确定了CMR结果与CV结果之间的关联:在 1780 名患者(年龄为 73 ± 5.7 岁;46% 为女性)中,研究人员观察到 144 起原发性事件和 323 起继发性事件,中位随访时间为 4.8 年。诱发性缺血和晚期钆增强(LGE)与较高的事件发生率有关。既没有诱发性缺血也没有 LGE 的患者则没有结论:在符合医疗保险资格的老年患者多中心队列中,负荷 CMR 能有效提供风险分层。(美国压力CMR灌注成像[SPINS]研究;NCT03192891)。
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引用次数: 0
Clinical Utility of LA Indices in Chronic Severe Aortic Regurgitation LA 指数在慢性重度主动脉瓣反流中的临床实用性:先A后V
IF 12.8 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-10-01 DOI: 10.1016/j.jcmg.2024.07.028
Kazuaki Negishi MD, PhD, MSc , Koya Ozawa MD, PhD
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引用次数: 0
Reappraisal of the Concept and Implications of Pulmonary Hypertension in Degenerative Mitral Regurgitation 重新评估退行性二尖瓣反流中肺动脉高压的概念和影响。
IF 12.8 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-10-01 DOI: 10.1016/j.jcmg.2024.05.006

Background

European and U.S. clinical guidelines diverge regarding pulmonary hypertension (PHTN) in degenerative mitral regurgitation (DMR). Gaps in knowledge underpinning these divergences affect risk assessment and management recommendations attached to systolic pulmonary pressure (SPAP) in DMR.

Objectives

This study sought to define PHTN links to DMR severity, prognostic thresholds, and independent outcome impact in a large quantitative DMR registry.

Methods

This study gathered a large multicentric registry of consecutive patients with isolated moderate-to-severe DMR, with DMR and SPAP quantified prospectively at diagnosis.

Results

In 3,712 patients (age 67 ± 15 years, 36% women) with ≥ moderate-to-severe DMR, effective regurgitant orifice (ERO) was 0.42 ± 0.19 cm2, regurgitant volume 66 ± 327 mL/beat and SPAP 41 ± 16 mm Hg. Spline-curve analysis showed excess mortality under medical management emerging around SPAP 35 mm Hg and doubling around SPAP 50 mm Hg. Accordingly, severe pulmonary hypertension (sPHTN) (SPAP ≥50 mm Hg) was detected in 916 patients, moderate pulmonary hypertension (mPHTN) (SPAP 35-49 mm Hg) in 1,128, and no-PHTN (SPAP <35 mm Hg) in 1,668. Whereas SPAP was strongly associated with DMR-ERO, nevertheless excess mortality with sPHTN (adjusted HR: 1.65; 95% CI: 1.24-2.20) and mPHTN (adjusted HR: 1.44; 95% CI: 1.11-1.85; both P ≤ 0.005) was observed independently of ERO and all baseline characteristics and in all patient subsets. Nested models demonstrated incremental prognostic value of mPHTN and sPHTN (all P < 0.0001). Despite higher operative risk with mPHTN and sPHTN, DMR surgical correction was followed by higher survival in all PHTN ranges with strong survival benefit of early surgery (<3 months). Postoperatively, excess mortality was abolished (P ≥ 0.30) in mPHTN, but only abated in sPHTN.

Conclusions

This large international registry, with prospectively quantified DMR and SPAP, demonstrates a Doppler-defined PHTN impact on mortality, independent of DMR severity. Crucially, it defines objectively the new and frequent mPHTN range, independently linked to excess mortality under medical management, which is abolished by DMR correction. Thus, at DMR diagnosis, Doppler-SPAP measurement defining these new PHTN ranges, is crucial to guiding DMR management.
背景:欧洲和美国的临床指南在退行性二尖瓣反流(DMR)的肺动脉高压(PHTN)方面存在分歧。造成这些分歧的知识差距影响了对 DMR 收缩压(SPAP)的风险评估和管理建议:本研究旨在确定 PHTN 与 DMR 严重程度、预后阈值之间的联系,以及在大型定量 DMR 登记中对独立结果的影响:该研究收集了一个大型多中心登记,登记对象为连续的孤立性中度至重度 DMR 患者,诊断时对 DMR 和 SPAP 进行了前瞻性量化:在 3712 名中重度 DMR 患者(67 ± 15 岁,36% 为女性)中,有效反流孔 (ERO) 为 0.42 ± 0.19 平方厘米,反流容量为 66 ± 327 毫升/次,SPAP 为 41 ± 16 毫米汞柱。花键曲线分析表明,在接受药物治疗的情况下,超额死亡率在 SPAP 35 mm Hg 左右出现,在 SPAP 50 mm Hg 左右增加一倍。因此,916 名患者被诊断为重度肺动脉高压(sPHTN)(SPAP ≥ 50 mm Hg),1128 名患者被诊断为中度肺动脉高压(mPHTN)(SPAP 35-49 mm Hg),无肺动脉高压(SPAP 结论:SPAP ≥ 50 mm Hg):这项大型国际登记研究对 DMR 和 SPAP 进行了前瞻性量化,证明了多普勒定义的 PHTN 对死亡率的影响与 DMR 严重程度无关。最重要的是,它客观地定义了新的和频繁出现的 mPHTN 范围,这与医疗管理下的超额死亡率无关,而 DMR 纠正则消除了这一影响。因此,在诊断 DMR 时,多普勒-SPAP 测量确定这些新的 PHTN 范围,对于指导 DMR 管理至关重要。
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引用次数: 0
Coronary Computed Tomography Angiography for the Diagnosis of Spontaneous Coronary Artery Dissection 用于诊断自发性冠状动脉夹层的冠状动脉计算机断层扫描血管造影:一项前瞻性研究
IF 12.8 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-10-01 DOI: 10.1016/j.jcmg.2024.05.009
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引用次数: 0
Longitudinal Assessment of Left Atrial Remodeling in Patients With Chronic Severe Aortic Regurgitation 对慢性严重主动脉瓣反流患者左心房重塑的纵向评估
IF 12.8 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-10-01 DOI: 10.1016/j.jcmg.2024.04.007

Background

There are significant sex and age differences in left ventricular (LV) remodeling that may lead to disparity in outcomes when used to inform the timing of aortic regurgitation (AR) intervention.

Objectives

The aim of this study was to examine whether left atrial (LA) parameters might represent better criteria than LV parameters to inform the timing of AR intervention.

Methods

Using data on patients with moderate to severe or severe AR with serial echocardiography (2010-2016), the longitudinal trends in left atrial volume index (LAVI) and left atrial reservoir strain (LAr) were evaluated by sex and age. The incremental utility of these parameters in predicting adverse events over LV parameters was also determined.

Results

In 525 patients (25.7% women) with 1,687 echocardiograms over a median follow-up period of 2.0 years (Q1-Q3: 1.0-3.6 years), there was significant increase in LAVI (1.0 mL/m2 per year [95% CI: 0.76-1.2 mL/m2 per year]) and decrease in LAr (−1.3% per year [95% CI: −1.6% to −0.92%]), without a significant interaction by sex or age category (P for interaction ≥ 0.17). In addition, both LAVI and LAr were significant predictors of adverse events independent of LV parameters. The optimal discriminatory thresholds were 37 mL/m2 for LAVI and 35% for LAr. These thresholds were similar across categories of sex and age. Within the relatively short-term follow-up, surgery was associated with survival benefit among patients with LAVI ≥37 mL/m2 (HR: 0.33 [95% CI: 0.15-0.72]; P = 0.006) but was not statistically significant among patients with LAVI <37 mL/m2 (HR: 0.46 [95% CI: 0.18-1.17]; P = 0.09). Similarly, surgery was associated with survival for the subgroup with LAr ≤35% but not among those with LAr >35%.

Conclusions

Unlike LV remodeling, LA remodeling demonstrates a similar rate of progression between categories of sex and age among patients with AR. In addition, LA parameters provide incremental prognostic value over LV parameters.
背景:左心室(LV)重塑存在明显的性别和年龄差异,如果将其作为主动脉瓣反流(AR)干预时机的依据,可能会导致结果的差异:本研究旨在探讨左心房(LA)参数是否比左心室参数更适合作为判断主动脉瓣反流介入时机的标准:利用连续超声心动图检查的中重度或重度AR患者的数据(2010-2016年),按性别和年龄评估了左心房容积指数(LAVI)和左心房储应变(LAr)的纵向趋势。此外,还确定了这些参数在预测不良事件方面比左心室参数的增量效用:在中位随访期为 2.0 年(Q1-Q3:1.0-3.6 年)、接受了 1,687 次超声心动图检查的 525 名患者(25.7% 为女性)中,LAVI 显著增加(每年 1.0 mL/m2 [95% CI:每年 0.76-1.2 mL/m2]),LAr 显著下降(每年-1.3% [95% CI:-1.6% 至-0.92%]),但与性别或年龄类别无显著交互作用(交互作用的 P ≥0.17)。此外,独立于左心室参数,LAVI 和 LAr 都是不良事件的重要预测因子。LAVI 和 LAr 的最佳判别阈值分别为 37 mL/m2 和 35%。这些阈值在不同性别和年龄的人群中相似。在相对较短的随访时间内,LAVI ≥37 mL/m2 患者的手术与生存获益相关(HR:0.33 [95% CI:0.15-0.72];P = 0.006),但 LAVI 2 患者的手术与生存获益无统计学意义(HR:0.46 [95% CI:0.18-1.17];P = 0.09)。同样,在LAr≤35%的亚组中,手术与生存率相关,但在LAr>35%的亚组中,手术与生存率无关:结论:与左心室重塑不同,LA重塑在不同性别和年龄的AR患者中表现出相似的进展速度。此外,LA参数比左心室参数更具预后价值。
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IF 12.8 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-10-01 DOI: 10.1016/j.jcmg.2024.07.008
Chetan Shenoy MBBS, MS, Parag H. Bawaskar MD, DM
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Calcification vs Inflammation 钙化与炎症:心血管风险评估的现代工具包。
IF 12.8 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Pub Date : 2024-10-01 DOI: 10.1016/j.jcmg.2024.08.006
Charalambos Antoniades MD, PhD, Kenneth Chan MBBS
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Detection of Cardiac Involvement in Eosinophilic Granulomatosis With Polyangiitis (EGPA) With Multiparametric Cardiovascular Magnetic Resonance (CMR) 利用多参数心血管磁共振 (CMR) 检测嗜酸性粒细胞增多性多发性骨髓炎 (EGPA) 的心脏受累情况
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引用次数: 0
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David E. Winchester MD, MS , Mahmoud Al Rifai MD, MPH
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引用次数: 0
期刊
JACC. Cardiovascular imaging
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