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Clinical significance of evaluating coronary atherosclerosis in adult patients with hypertrophic cardiomyopathy who have chest pain.
European Radiology ( IF 5.9 ) Pub Date : 2019-02-24 , DOI: 10.1007/s00330-018-5951-8
Yoon Joo Shin 1 , Jae Hwan Lee 2 , Jin Young Yoo 3 , Jeong A Kim 4 , Yongho Jeon 5 , Yeonyee E Yoon 6 , Eun Ju Chun 1
Affiliation  

OBJECTIVE Chest pain is a common symptom in patients with hypertrophic cardiomyopathy (HCM), causing difficulty determining whether there is coexistent coronary artery disease (CAD). We investigated whether coronary computed tomography angiography (CCTA) can assess the prevalence and clinical significance of CAD in adult patients with HCM showing chest pain through longitudinal follow-up. METHODS In 238 adult patients with HCM, who underwent CCTA for chest pain, we analyzed the degree of stenosis and adverse plaque characteristics (APCs) as CCTA variables. Three prediction models for adverse cardiovascular events (ACEs: all-cause mortality, myocardial infarction, unstable angina, heart failure, implantable cardioverter-defibrillator implantation, and stroke) were assessed using the combination of clinical risk factors, echocardiographic parameters, and CCTA variables. RESULTS The prevalence of obstructive CAD (≥ 50% in luminal stenosis) and APC was 14.7% and 18.9%, respectively. During the follow-up period (median, 37 months; range, 2-108 months), there were 31 occurrences of ACEs (13.0%). Using multivariate Cox regression analysis, age, atrial fibrillation, low ejection fraction, obstructive CAD, and APCs were associated with ACEs (all p < 0.05). Among the prediction models for ACEs, the area under the curve (AUC) was higher (AUC = 0.92) when CCTA variables were added to the clinical (AUC = 0.84) and echocardiographic factors (AUC = 0.88) (p < 0.001). CONCLUSIONS Using CCTA, about 20% of symptomatic HCM patients were associated with clinically significant atherosclerosis. Adding these CCTA variables to the clinical and echocardiographic variables may increase the predictions of ACEs; therefore, evaluating coronary atherosclerosis using CCTA may be helpful for symptomatic HCM patients. KEY POINTS • Chest pain in adult patients with hypertrophic cardiomyopathy (HCM) remains challenging to distinguish from coronary artery disease. • Coronary computed tomography angiography (CCTA) can assess the severity and characteristics of coronary atherosclerosis in symptomatic HCM patients. • Adding CCTA variables to clinical and echocardiographic factors may increase the predictions of adverse cardiac events in HCM patients, and thus evaluating coronary atherosclerosis using CCTA may be helpful for HCM patients with chest pain.

中文翻译:

评价患有胸痛的成年肥厚型心肌病患者的冠状动脉粥样硬化的临床意义。

目的胸痛是肥厚型心肌病(HCM)患者的常见症状,导致难以确定是否存在共存的冠心病(CAD)。我们调查了冠状动脉计算机断层血管造影术(CCTA)是否可以通过纵向随访评估成年HCM表现出胸痛的成年患者CAD的患病率和临床意义。方法对238例因胸痛而接受CCTA治疗的成人HCM患者,我们将狭窄程度和不良斑块特征(APC)作为CCTA变量进行了分析。结合临床风险因素,评估了三种不良心血管事件的预测模型(ACEs:全因死亡率,心肌梗塞,不稳定型心绞痛,心力衰竭,可植入的心脏复律除颤器植入和中风),超声心动图参数和CCTA变量。结果阻塞性CAD(管腔狭窄≥50%)和APC的患病率分别为14.7%和18.9%。在随访期间(中位37个月;范围2-108个月),有31例ACE发生(13.0%)。使用多元Cox回归分析,年龄,房颤,低射血分数,阻塞性CAD和APC与ACEs相关(所有p <0.05)。在ACE的预测模型中,当将CCTA变量添加到临床(AUC = 0.84)和超声心动图因子(AUC = 0.88)时,曲线下面积(AUC)更高(AUC = 0.92)(p <0.001)。结论使用CCTA,约20%的有症状HCM患者与临床上显着的动脉粥样硬化有关。将这些CCTA变量添加到临床和超声心动图变量中可能会增加ACE的预测。因此,使用CCTA评估冠状动脉粥样硬化对于有症状的HCM患者可能会有帮助。要点•成年肥厚型心肌病(HCM)患者的胸痛仍然难以与冠心病区分开。•冠状动脉计算机断层血管造影(CCTA)可以评估有症状HCM患者的冠状动脉粥样硬化的严重程度和特征。•将CCTA变量添加到临床和超声心动图因素中可能会增加HCM患者不良心脏事件的预测,因此使用CCTA评估冠状动脉粥样硬化可能对患有胸痛的HCM患者有所帮助。使用CCTA评估冠状动脉粥样硬化对于有症状的HCM患者可能会有帮助。要点•成年肥厚型心肌病(HCM)患者的胸痛仍然难以与冠心病区分开。•冠状动脉计算机断层造影血管造影(CCTA)可以评估有症状HCM患者的冠状动脉粥样硬化的严重程度和特征。•将CCTA变量添加到临床和超声心动图因素中可能会增加HCM患者不良心脏事件的预测,因此使用CCTA评估冠状动脉粥样硬化可能对患有胸痛的HCM患者有所帮助。使用CCTA评估冠状动脉粥样硬化对于有症状的HCM患者可能会有帮助。要点•成年肥厚型心肌病(HCM)患者的胸痛仍然难以与冠心病区分开。•冠状动脉计算机断层血管造影(CCTA)可以评估有症状HCM患者的冠状动脉粥样硬化的严重程度和特征。•将CCTA变量添加到临床和超声心动图因素中可能会增加HCM患者不良心脏事件的预测,因此使用CCTA评估冠状动脉粥样硬化可能对患有胸痛的HCM患者有所帮助。•冠状动脉计算机断层血管造影(CCTA)可以评估有症状HCM患者的冠状动脉粥样硬化的严重程度和特征。•将CCTA变量添加到临床和超声心动图因素中可能会增加HCM患者不良心脏事件的预测,因此使用CCTA评估冠状动脉粥样硬化可能对患有胸痛的HCM患者有所帮助。•冠状动脉计算机断层造影血管造影(CCTA)可以评估有症状HCM患者的冠状动脉粥样硬化的严重程度和特征。•将CCTA变量添加到临床和超声心动图因素中可能会增加HCM患者不良心脏事件的预测,因此使用CCTA评估冠状动脉粥样硬化可能对患有胸痛的HCM患者有所帮助。
更新日期:2019-02-22
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