Ventricular dysfunction

心室功能障碍
  • 文章类型: Journal Article
    背景:高血压是全球心血管疾病最常见的可逆原因,超过10亿人患有这种疾病。持续的心脏暴露于增加的后负荷进展为适应不良的重塑,导致心脏功能障碍.在这项研究中,我们旨在评估高血压治疗后的心功能.
    方法:对100例诊断为高血压的患者进行两次评估,间隔3到6个月,降压治疗前后。在两次访问中都对患者进行了临床和超声心动图评估,并研究了降压治疗对心脏功能的兴趣效应。
    结果:研究了58名男性和42名女性,平均年龄为60.81±11.8岁。首次就诊的平均收缩压和舒张压分别为163.05±20.6和95.40±10.4。第二次访问时,平均收缩压和舒张压分别为129.95±10.4和82.35±7.2(两者的P值均<0.001)。作为评估左心室收缩功能的主要参数的全局纵向应变的平均值在第一次就诊时为-15.54%,在第二次就诊时为-16.95%(P值0.025)。
    结论:根据本研究的结果,参数的变化,收缩和舒张功能的指标,经过3-6个月的降压治疗是显著的。最重要的一点是,如果及时诊断高血压,心脏的适应不良重塑是可逆的。对接受降压治疗的患者进行随访,GLS和舒张功能不全的参数指标,在检测心脏损伤的早期阶段方面具有最佳诊断价值。
    BACKGROUND: Hypertension is the most common reversible cause of cardiovascular disease worldwide and more than one billion individuals suffer from the disease. Constant heart exposure to increased afterload progresses to maladaptive remodeling, leading to cardiac dysfunction. In this study, we aimed to evaluate cardiac function in response to hypertension treatment.
    METHODS: One hundred patients diagnosed with hypertension were evaluated two times, with 3 to 6 months intervals, before and after antihypertensive therapy. Patients underwent clinical and echocardiographic evaluation in both visits and the interest effect of antihypertensive therapy on cardiac function was studied.
    RESULTS: 58 men and 42 women with a mean age of 60.81 ± 11.8 years were studied. Mean systolic and diastolic pressure in the first visit was 163.05 ± 20.6 and 95.40 ± 10.4, respectively. On the second visit, mean systolic and diastolic pressure was 129.95 ± 10.4 and 82.35 ± 7.2 respectively (P value for both < 0.001). The mean value of Global Longitudinal Strain as the main parameter for evaluating left ventricular systolic function was -15.54% on the first visit and changed to -16.95% on the second visit (P value 0.025).
    CONCLUSIONS: According to the results of this study, changes in parameters, indicator of systolic and diastolic function, after 3-6 months of antihypertensive therapy are significant. The most important point is that maladaptive remodeling of the heart is reversible if hypertension is diagnosed timely. To follow-up patients under antihypertensive therapy, GLS and parameters indicator of diastolic dysfunction, have the best diagnostic value in terms of detecting early stages of cardiac injury.
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  • 文章类型: English Abstract
    UNASSIGNED: To determine the factors associated with left ventricular diastolic dysfunction (LVDD) in adults residing in a region of the Andes in Peru.
    UNASSIGNED: A case-control study was conducted on adults living at an altitude of more than 3000 meters in Peru. Cases consisted of patients diagnosed with LVDD through echocardiography, whereas controls were adults without LVDD, as confirmed by echocardiography.
    UNASSIGNED: A total of 50 cases and 100 controls were included in the study. Among them, 38.7% had high blood pressure, and 41.3% were overweight. Upon adjusted analysis, age 60 or older (aOR: 4.06; 95%CI: 1.29-12.8), female sex (aOR: 2.24; 95%CI: 1.01-4.96) and left ventricular hypertrophy (aOR: 3.17; 95%CI: 1.41-7.17) were identified as statistically significant factors associated with LVDD.
    UNASSIGNED: The risk of LVDD is associated with older adults, female gender, and left ventricular hypertrophy among individuals residing above 3000 meters altitude in a region of the Andes, in Peru.
    UNASSIGNED: Determinar los factores asociados con la disfunción diastólica del ventrículo izquierdo (DDVI) en adultos de una región de los Andes, en Perú.
    UNASSIGNED: Estudio de casos y controles en adultos residentes a más de 3000 metros de altitud en Perú. Los casos fueron pacientes adultos diagnosticados con DDVI por ecocardiografía, y los controles fueron adultos sin DDVI por ecocardiografía.
    UNASSIGNED: Se incluyeron 50 casos y 100 controles. El 38.7% tuvieron hipertensión arterial y el 41.3% sobrepeso. En el análisis ajustado, la edad de 60 o más años (ORa: 4.06; IC95%: 1.29-12.8), el sexo femenino (ORa: 2.24; IC95%: 1.01-4.96) y la hipertrofia ventricular izquierda (ORa: 3.17; IC95%: 1.41-7.17) fueron factores estadísticamente significativos.
    UNASSIGNED: El riesgo de DDVI estuvo asociado a los adultos mayores, las mujeres y los pacientes con hipertrofia ventricular izquierda que viven por encima de los 3000 metros de altitud en una región de los Andes, en Perú.
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  • 文章类型: Journal Article
    系统性右心室(RV)功能障碍与左心发育不全综合征(HLHS)的无移植生存率(TFS)降低有关,但心力衰竭(HF)药物的功能改善和效用的可能性尚不清楚。
    作者旨在描述TFS,HF药物使用,和手术干预的HLHS患者的RV功能障碍有或没有随后的功能改善。
    SickKidsHF数据库是一个回顾性队列研究,包括所有RV功能障碍持续>30天的儿童HLHS患者。我们比较了TFS,HF药物,以及有和没有功能正常化的HLHS患者的手术干预。
    在99例HLHS和RV功能障碍患者中,52%的正常功能≥30天。在未正常化的患者中,功能障碍发作后2年的TFS较低(14%vs78%,P<0.001)。未正常化的患者不太可能达到目标剂量(TD)的HF药物(27%vs47%的1种药物在TD,P<0.001)并进行Fontan完成(7%vs53%,P<0.001)。与改善TFS相关的临床因素是功能正常化≥30天,双向Glenn后出现功能障碍,和暴露于ACE抑制。
    我们的具有系统性RV功能障碍的HLHS患者队列显示了在功能正常化≥30天的患者中改善的TFS的新发现。实现HF药物的TD与改善的结果相关。这可能反映了患者对HF药物的稳定性和耐受性超过其治疗效果,但它可以帮助告知决定进行手术缓解或移植清单。
    UNASSIGNED: Systemic right ventricle (RV) dysfunction is associated with lower transplant-free survival (TFS) in hypoplastic left heart syndrome (HLHS), but the likelihood of functional improvement and utility of heart failure (HF) medications is not understood.
    UNASSIGNED: The authors aimed to describe TFS, HF medication use, and surgical interventions in HLHS patients with RV dysfunction with and without subsequent improvement in function.
    UNASSIGNED: The SickKids HF Database is a retrospective cohort that includes all pediatric HLHS patients with RV dysfunction lasting >30 days. We compared TFS, HF medications, and surgical interventions in HLHS patients with and without functional normalization.
    UNASSIGNED: Of 99 patients with HLHS and RV dysfunction, 52% had normalized function for ≥30 days. TFS at 2 years after dysfunction onset was lower in those without normalization (14% vs 78%, P < 0.001). Patients without normalization were less likely to reach target dosing (TD) of HF medications (27% vs 47% on 1 medication at TD, P < 0.001) and undergo Fontan completion (7% vs 53%, P < 0.001). Clinical factors associated with improved TFS were normalization of function for ≥30 days, onset of dysfunction after bidirectional Glenn, and exposure to ACE inhibition.
    UNASSIGNED: Our cohort of HLHS patients with systemic RV dysfunction demonstrated a novel finding of improved TFS in those with functional normalization for ≥30 days. Achieving TD of HF medications was associated with improved outcomes. This may reflect patient stability and tolerance for HF medication more than its therapeutic effect, but it can help inform decisions to proceed with surgical palliation or list for transplant.
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  • 文章类型: Journal Article
    尽管严重急性呼吸衰竭是严重急性呼吸综合征冠状病毒2(SARS-CoV-2)感染的发病和死亡的主要原因,这种病毒感染会导致一些人的心血管疾病。该病毒的心脏效应包括心肌炎,心包炎,心律失常,冠状动脉瘤和心肌病,并可导致心源性休克和多系统器官衰竭。
    这篇综述总结了SARS-CoV-2在儿科人群中的心脏表现。我们对与急性冠状病毒病2019(COVID-19)感染相关的心血管疾病进行了范围审查,儿童多系统炎症综合征(MIS-C),和mRNACOVID-19疫苗。还检查了儿科运动员的特殊考虑因素,并在COVID-19感染后重返赛场。
    出现急性COVID-19的儿童应进行心功能不全筛查,并获得全面的病史。在心律失常的任何体征/症状后,应考虑进一步的心血管评估。低心输出量,和/或心肌心包炎。严重急性COVID-19入院的患者应进行连续心脏监测。实验室测试,如临床所示,包括肌钙蛋白和B型利钠肽或N末端前脑利钠肽的测试。超声心动图与应变评估和/或心脏磁共振成像应考虑评估舒张和收缩功能障碍。冠状动脉解剖学,心包和心肌.对于MIS-C患者,静脉注射免疫球蛋白和糖皮质激素联合治疗是安全和潜在的疾病改变.MIS-C的治疗靶向超免疫应答。支持性护理,包括机械支撑,在某些情况下是需要的。
    心血管疾病是SARS-CoV-2感染的一个显著特征。大多数婴儿,患有COVID-19心脏病的儿童和青少年完全康复,没有持续的心功能障碍。然而,需要进行长期研究和进一步研究,以评估SARS-CoV-2变种的心血管风险,并了解COVID-19导致心功能不全的病理生理学.
    UNASSIGNED: Although severe acute respiratory failure is the primary cause of morbidity and mortality in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, this viral infection leads to cardiovascular disease in some individuals. Cardiac effects of the virus include myocarditis, pericarditis, arrhythmias, coronary aneurysms and cardiomyopathy, and can result in cardiogenic shock and multisystem organ failure.
    UNASSIGNED: This review summarises cardiac manifesta-tions of SARS-CoV-2 in the paediatric population. We performed a scoping review of cardiovascular disease associated with acute coronavirus disease 2019 (COVID-19) infection, multisystem inflammatory syndrome in children (MIS-C), and mRNA COVID-19 vaccines. Also examined are special considerations for paediatric athletes and return to play following COVID-19 infection.
    UNASSIGNED: Children presenting with acute COVID-19 should be screened for cardiac dysfunction and a thorough history should be obtained. Further cardiovascular evaluation should be considered following any signs/symptoms of arrhythmias, low cardiac output, and/or myopericarditis. Patients admitted with severe acute COVID-19 should be monitored with continuous cardiac monitoring. Laboratory testing, as clinically indicated, includes tests for troponin and B-type natriuretic peptide or N-terminal pro-brain natriuretic peptide. Echocardiography with strain evaluation and/or cardiac magnetic resonance imaging should be considered to evaluate diastolic and systolic dysfunction, coronary anatomy, the pericardium and the myocardium. For patients with MIS-C, combination therapy with intravenous immunoglobulin and glucocorticoid therapy is safe and potentially disease altering. Treatment of MIS-C targets the hyperimmune response. Supportive care, including mechanical support, is needed in some cases.
    UNASSIGNED: Cardiovascular disease is a striking feature of SARS-CoV-2 infection. Most infants, children and adolescents with COVID-19 cardiac disease fully recover with no lasting cardiac dysfunction. However, long-term studies and further research are needed to assess cardiovascular risk with variants of SARS-CoV-2 and to understand the pathophysiology of cardiac dysfunction with COVID-19.
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  • 文章类型: Case Reports
    左心室致密化不全(LVNC)通常被描述为先天性心肌病,其特征是突出的心肌小梁和在左心室腔中延伸的深层小梁间凹陷。从无症状个体到出现心力衰竭和其他严重并发症的个体,临床表现可能有很大不同。通常通过二维经胸超声心动图或心脏磁共振进行诊断。此外,即使LVNC患者的应变参数显着降低,他们没有例行调查。这里,我们报告了一例先前因肺水肿入院的无症状患者。二维经胸超声心动图显示严重的心脏瓣膜病和左心室明显的小梁形成和重塑,尽管斑点追踪超声心动图(STE)仅显示轻度应变减少。我们,因此,探讨STE可能有助于区分LVNC心肌病和严重重塑引起的LVNC表型。
    Left ventricular noncompaction (LVNC) is commonly described as a congenital cardiomyopathy characterized by prominent myocardial trabeculae and deep intertrabecular recesses extending in the left ventricular chamber. Clinical presentation can differ considerably from asymptomatic individuals to those presenting with heart failure and other serious complications. Diagnosis is usually made by two-dimensional transthoracic echocardiography or cardiac magnetic resonance. Moreover, even if strain parameters are significantly reduced in patients with LVNC, they are not routinely investigated. Here, we report the case of a previously symptomless patient admitted to the hospital for pulmonary edema. Two-dimensional transthoracic echocardiography showed severe valvular heart disease and left ventricle pronounced trabeculation and remodeling, although speckle tracking echocardiography (STE) demonstrated only mild strain reduction. We, therefore, explore the possibility that STE may be useful to differentiate LVNC cardiomyopathy from LVNC phenotype due to severe remodeling.
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  • 文章类型: Journal Article
    随着医疗和外科的不断进步,大多数患有先天性心脏病的儿童和青少年有望存活到成年。随着年龄的增长,慢性心力衰竭越来越被认为是导致该人群持续发病和死亡的主要原因。在儿科人群中需要预防和治疗心力衰竭的治疗策略.除了原发性心肌功能障碍,各种先天性心脏病病变特有的解剖和病理生理异常会导致心力衰竭的发展,并影响通常用于治疗成年心力衰竭患者的潜在策略。这份科学声明强调了在理解流行病学方面的重大知识差距,病理生理学,分期,与慢性心力衰竭的儿童和青少年先天性心脏病不适合导管或手术干预的结果。努力协调定义,分期,后续行动,和治疗先天性心脏病儿童心力衰竭的方法对于开展严格的科学研究至关重要,以增进我们对这一人群心力衰竭的实际负担的理解,并允许开发基于证据的心力衰竭治疗方法,从而改善这一高风险队列的结局.
    With continued medical and surgical advancements, most children and adolescents with congenital heart disease are expected to survive to adulthood. Chronic heart failure is increasingly being recognized as a major contributor to ongoing morbidity and mortality in this population as it ages, and treatment strategies to prevent and treat heart failure in the pediatric population are needed. In addition to primary myocardial dysfunction, anatomical and pathophysiological abnormalities specific to various congenital heart disease lesions contribute to the development of heart failure and affect potential strategies commonly used to treat adult patients with heart failure. This scientific statement highlights the significant knowledge gaps in understanding the epidemiology, pathophysiology, staging, and outcomes of chronic heart failure in children and adolescents with congenital heart disease not amenable to catheter-based or surgical interventions. Efforts to harmonize the definitions, staging, follow-up, and approach to heart failure in children with congenital heart disease are critical to enable the conduct of rigorous scientific studies to advance our understanding of the actual burden of heart failure in this population and to allow the development of evidence-based heart failure therapies that can improve outcomes for this high-risk cohort.
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  • 文章类型: Journal Article
    目的:复杂的单绒毛膜(MC)双胎妊娠导致的双胎有可能在出生后发展为肺动脉高压(PH)和心功能不全(CD)。两种病理都是这些婴儿短期和长期发病的重要因素。本回顾性单中心队列研究的目的是评估这些新生儿对PH和CD的血管活性治疗的需求。
    方法:对在2019年10月至2023年12月期间入住波恩大学儿童医院(UKB)新生儿科的复杂MC双胎妊娠后出生的新生儿进行筛查,以纳入研究。最后,最终分析包括70名新生儿,其中37例新生儿被分类为受体双胞胎(A组),33例新生儿被分类为供体双胞胎(B组)。
    结果:生命日(DOL)1的总体PH发生率为17%,在DOL7时下降至6%(p=0.013),在DOL28没有发现PH。在DOL1时,CD的总发病率为56%,直到DOL7(10%,p=0.015),在DOL28时未诊断为CD。多巴酚丁胺的使用,去甲肾上腺素,和血管加压素在DOL1直到DOL7在亚组之间没有差异,而在DOL1时,B组的米力农剂量明显更高(p=0.043)。16%的队列使用了吸入一氧化氮(iNO),34%的新生儿接受了左西孟旦治疗。该队列的三分之一使用口服β受体阻滞剂,在10%中,静脉注射β受体阻滞剂(兰地洛尔).最大左西孟旦血管活性肌力评分(LVISmax)从DOL1(12.4[3/27])增加到DOL2(14.6[1/68],p=0.777),此后在DOL7(9.5[2/30],p=0.011)。
    结论:在复杂的MC双胎妊娠后,早期PH和CD是新生儿的常见诊断,在这些婴儿的管理中需要个体化的血管活性治疗策略.
    OBJECTIVE: Twins resulting from a complicated monochorionic (MC) twin pregnancy are at risk for postnatal evolution of pulmonary hypertension (PH) and cardiac dysfunction (CD). Both pathologies are important contributors to short- and long-term morbidity in these infants. The aim of the present retrospective single-center cohort study was to evaluate the need for vasoactive treatment for PH and CD in these neonates.
    METHODS: In-born neonates following a complicated MC twin pregnancy admitted to the department of neonatology of the University Children\'s Hospital Bonn (UKB) between October 2019 and December 2023 were screened for study inclusion. Finally, 70 neonates were included in the final analysis, with 37 neonates subclassified as recipient twins (group A) and 33 neonates as donor twins (group B).
    RESULTS: The overall PH incidence at day of life (DOL) 1 was 17% and decreased to 6% at DOL 7 (p = 0.013), with no PH findings at DOL 28. The overall incidence of CD was 56% at DOL 1 and decreased strongly until DOL 7 (10%, p = 0.015), with no diagnosis of CD at DOL 28. The use of dobutamine, norepinephrine, and vasopressin at DOL 1 until DOL 7 did not differ between the subgroups, whereas the dosing of milrinone was significantly higher in Group B at DOL 1 (p = 0.043). Inhaled nitric oxide (iNO) was used in 16% of the cohort, and a levosimendan therapy was administered in 34% of the neonates. One-third of the cohort was treated with oral beta blockers, and in 10%, an intravenous beta blockade (landiolol) was administered. The maximum levosimendan vasoactive-inotropic score (LVISmax) increased from DOL 1 (12.4 [3/27]) to DOL 2 (14.6 [1/68], p = 0.777), with a significant decrease thereafter as measured at DOL 7 (9.5 [2/30], p = 0.011).
    CONCLUSIONS: Early PH and CD are frequent diagnoses in neonates following a complicated MC twin pregnancy, and an individualized vasoactive treatment strategy is required in the management of these infants.
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  • 文章类型: Journal Article
    肺动脉高压(PAH)是一种慢性和进行性疾病,如果不及时治疗,最终会导致心力衰竭(HF)和随后的死亡。右心室(RV)功能已被证明对包括PAH在内的各种心脏病患者具有预后价值。PAH主要是右心疾病;然而,考虑到连续循环系统的性质以及共享的隔膜和心包约束的存在,右心室和左心室的相互依赖是一个需要考虑的因素.准确及时地评估心室功能对于PAH患者的预后和预后管理非常重要。非侵入性的方式,如心脏磁共振(CMR)和超声心动图(二维和三维),核医学,正电子发射断层扫描(PET)在评估心室功能和疾病预后中起着至关重要的作用。每种模式都有自己的优势和局限性,因此,这篇综述文章阐明了(i)PAH患者的心室功能障碍和此类患者的RV-LV相互依存,(ii)早期评估心室功能的所有可用模式和参数的优势和局限性,以及它们的预后价值,(三)最后,这些方法在准确和早期诊断PAH心室功能方面面临的挑战和未来的潜在进展。
    Pulmonary arterial hypertension (PAH) is a chronic and progressive disease that eventually leads to heart failure (HF) and subsequent fatality if left untreated. Right ventricular (RV) function has proven prognostic values in patients with a variety of heart diseases including PAH. PAH is predominantly a right heart disease; however, given the nature of the continuous circulatory system and the presence of shared septum and pericardial constraints, the interdependence of the right and left ventricles is a factor that requires consideration. Accurate and timely assessment of ventricular function is very important in the management of patients with PAH for disease outcomes and prognosis. Non-invasive modalities such as cardiac magnetic resonance (CMR) and echocardiography (two-dimensional and three-dimensional), and nuclear medicine, positron emission tomography (PET) play a crucial role in the assessment of ventricular function and disease prognosis. Each modality has its own strengths and limitations, hence this review article sheds light on (i) ventricular dysfunction in patients with PAH and RV-LV interdependence in such patients, (ii) the strengths and limitations of all available modalities and parameters for the early assessment of ventricular function, as well as their prognostic value, and (iii) lastly, the challenges faced and the potential future advancement in these modalities for accurate and early diagnosis of ventricular function in PAH.
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  • 文章类型: Case Reports
    心肌炎是心肌的炎症,最常见的是由病毒感染引起的,与其他因素,包括药物或全身性炎症。2019年冠状病毒病(COVID-19)是一种由严重急性呼吸道综合症冠状病毒-2(SARS-CoV-2病毒)引起的疾病。在这份报告中,我们介绍了一例COVID-19感染患者的暴发性心肌炎病例。暴发性心肌炎是一种激进的进行性和严重的变体,可导致严重的心脏损害。我们介绍了一例暴发性心肌炎具有独特的时程,programming,以及诊断和管理方面面临的潜在挑战。医疗保健提供者需要保持警惕,并预测这种疾病的潜在快速进展。
    Myocarditis is an inflammation of the heart muscle, most commonly caused by viral infections, with other contributing factors including medications or systemic inflammatory conditions. Coronavirus disease 2019 (COVID-19) is a disease caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2 virus). In this report, we present a case of fulminant myocarditis in a patient with COVID-19 infection. Fulminant myocarditis is an aggressively progressive and severe variant that can result in substantial cardiac impairment. We present a case of fulminant myocarditis with a unique time course, progression, and potential challenges faced in diagnosis and management. Healthcare providers need to remain vigilant and anticipate the potential rapid progression of this disease.
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  • 文章类型: Journal Article
    目的:我们旨在确定参加北京2022马拉松的非精英跑步者对运动反应的肌钙蛋白变化的主要决定因素,特别关注与通过组织多普勒超声心动图和斑点追踪评估的心脏功能的关联。
    方法:前瞻性研究。
    方法:将2022年北京马拉松比赛的33名非精英参与者纳入研究。之前进行超声心动图评估和血液样本收集,紧接着,马拉松比赛两周后.使用相同的Abbot高灵敏度cTnISTAT测定法分析血液样品。超声心动图包括组织多普勒和斑点追踪超声心动图。
    结果:马拉松之后,在心脏生物标志物中观察到显著增加,hs-cTnI从3.1[2.3-6.7]升至49.6[32.5-76.9]ng/L(P<0.0001)。超过72%的参与者的赛后hs-TnI水平超过第99百分位数参考上限。马拉松前hs-cTnI水平之间存在显著相关性(β系数,0.56[0.05,1.07];P=0.042),每周平均训练(β系数,-1.15[-1.95,-0.35];P=0.009),hs-cTnI在马拉松后崛起。超声心动图显示种族后明显的心功能变化,包括降低的E/A比(P<0.0001),GWI(P<0.0001),和GCW(P<0.0001),在LVEF(β系数,0.112[0.01,0.21];P=0.042)和RVGLS(β系数,0.124[0.01,0.23];P=0.035)变化与hs-TnI改变显着相关。所有超声心动图和实验室指标在两周内恢复到基线水平。
    结论:基线hs-cTnI水平和每周平均训练影响非优秀跑步者运动诱发的hs-cTnI升高。超声心动图显示种族后心功能变化,LVEF和RVGLS与hs-TnI改变显著相关。这些发现有助于了解心脏对运动的反应,并可以指导训练和恢复策略。
    OBJECTIVE: We aimed to identify the major determinants of cardiac troponin changes response to exercise among non-elite runners participating in the Beijing 2022 marathon, with a particular focus on the associations with the cardiac function assessed by tissue Doppler echocardiography and speckle tracking.
    METHODS: A prospective study.
    METHODS: A total of 33 non-elite participants in the 2022 Beijing Marathon were included in the study. Echocardiographic assessment and blood sample collection were conducted before, immediately after, and two weeks after the marathon. Blood samples were analyzed using the same Abbot high-sensitivity cTnI STAT assay. Echocardiography included tissue Doppler and speckle tracking echocardiography.
    RESULTS: Following the marathon, significant increases were observed in cardiac biomarkers, with hs-cTnI elevating from 3.1 [2.3-6.7] to 49.6 [32.5-76.9] ng/L (P < 0.0001). Over 72 % of participants had post-race hs-TnI levels surpassing the 99th percentile upper reference limit. There was a notable correlation between pre-marathon hs-cTnI levels (β coefficient, 0.56 [0.05, 1.07]; P = 0.042), weekly average training (β coefficient, -1.15 [-1.95, -0.35]; P = 0.009), and hs-cTnI rise post-marathon. Echocardiography revealed significant post-race cardiac function changes, including decreased E/A ratio (P < 0.0001), GWI (P < 0.0001), and GCW (P < 0.0001), with LVEF (β coefficients, 0.112 [0.01, 0.21]; P = 0.042) and RV GLS (β coefficients, 0.124 [0.01, 0.23]; P = 0.035) changes significantly associated with hs-TnI alterations. All echocardiographic and laboratory indicators reverted to baseline levels within two weeks.
    CONCLUSIONS: Baseline hs-cTnI levels and weekly average training influence exercise-induced hs-cTnI elevation in non-elite runners. Echocardiography revealed post-race changes in cardiac function, with LVEF and RV GLS significantly associated with hs-TnI alterations. These findings contribute to understanding the cardiac response to exercise and could guide training and recovery strategies.
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