Cardiopathie

心脏病
  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    通过经胸多普勒超声心动图评估左心室舒张功能是基于多参数方法,其中包括频谱组织多普勒衍生的E/e'。最近,一个新的多普勒指数,E/(e\'xs\'),将E/e与频谱组织多普勒衍生的收缩功能标志物相结合,s\',已被提出用于左心室心肌功能障碍的无创评估。目前的文献提供的证据表明,E/(e\'xs\')与NTproBNP水平和有创左心室舒张末期压具有良好的相关性,两者都用作左心室心肌功能障碍的标志物,与左心室射血分数和室壁运动异常无关。更具体地说,E/(e\'xs\')在E/e\'中间值(8至15)的患者中具有良好的诊断准确性。据报道,平均E/(e\'xs\')>1.6可预测有创左心室舒张末期压>15mmHg,敏感性为86%,特异性为85%。目前的文献提供的证据表明,在收缩性心力衰竭和射血分数正常的心力衰竭患者中,E/(e\'xs\')可以提供比E/e'更好的预后信息,以及无症状心脏病患者。一些临床研究还表明,E/(e\'xs\')可以预测心脏复律后房颤的复发和急性心肌梗死后左心室重构。迫切需要进一步的实验和临床研究,以确定这种未被认可的组织多普勒指数在心血管疾病的非侵入性评估中的作用。尤其是射血分数正常的心力衰竭。
    Assessment of left ventricular diastolic function by transthoracic Doppler echocardiography is based on a multiparametric approach which includes the spectral tissue Doppler-derived E/e\'. Recently, a new Doppler index, E/(e\'xs\'), which combines E/e\' with a spectral tissue Doppler-derived marker of systolic function, s\', has been proposed in noninvasive assessment of left ventricular myocardial dysfunction. Current literature provides evidence that E/(e\'xs\') has good correlation with NT proBNP levels and invasive left ventricular end-diastolic pressure, both used as markers of left ventricular myocardial dysfunction, irrespective of left ventricular ejection fraction and wall motion abnormalities. More specifically, E/(e\'xs\') has good diagnostic accuracy in patients with intermediate values for E/e\' (8 to 15). Average E/(e\'xs\')>1.6 is reported to predict invasive left ventricular end-diastolic pressure>15mmHg with a sensitivity of 86% and a specificity of 85%. Current literature provides evidence that E/(e\'xs\') could offer better prognostic information than E/e\' in patients with systolic heart failure and heart failure with normal ejection fraction, as well as in patients with asymptomatic heart disease. A few clinical studies also suggest that E/(e\'xs\') could predict recurrence of atrial fibrillation after cardioversion and left ventricular remodeling after acute myocardial infarction. Further experimental and clinical investigation is critically needed to determine the role of this under-recognized tissue Doppler index in noninvasive assessment of cardiovascular diseases, in particular heart failure with normal ejection fraction.
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  • 文章类型: Journal Article
    The development of structural interventional catheterization for acquired or congenital heart disease was made possible through concomitant advances in catheterization techniques/tools and imaging techniques (fluoroscopy, ultrasound, magnetic resonance imaging and computed tomography). Imaging should provide an accurate view of the lesions and the surrounding cardiac structures, as well as the medical devices and catheters used. Here, we address the subject of image fusion. The principle of image fusion is based on the superposition of several imaging techniques: real-time fluoroscopy and multislice imaging performed offline or ultrasound imaging performed simultaneously. The goals are to improve the overall visualization of the organ and the surrounding structures, and to help the interventional cardiologist to interpret fluoroscopy images.
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  • 文章类型: Case Reports
    背景:贝伐单抗是一种针对VEGF-A的抗体。它被批准用于治疗许多癌症疾病。其副作用目前尚不为医生所熟知。
    方法:一名患有转移性结肠腺癌的70岁女性因昏迷进入重症监护病房,在接受含贝伐单抗的每月联合化疗4天后,奥沙利铂,5氟尿嘧啶,和第四次亚叶酸.在临床检查中,她表现为下肢痉挛和高血压。病因学调查,包括脑干密度测定,脑脊液检查,精神药物尿检,和脑电图,是阴性的。除了尼卡地平和乌拉地尔以外,没有任何其他治疗的意识得到改善,但患者最初感到困惑。脑磁共振成像显示改变提示后部可逆性脑病综合征,但也涉及额叶。还有其他生物学和超声心动图变化提示心脏受累。10天后,患者的心脏和神经系统表现完全恢复。
    结论:医师应注意贝伐单抗的心血管不良反应。必须治疗高血压,以避免更严重的并发症。当发生后部可逆性脑病综合征时,应调查心脏受累情况。
    BACKGROUND: Bevacizumab is an antibody directed against VEGF-A. It is approved for the treatment of many cancer diseases. Its side effects are currently not well known by physicians.
    METHODS: A 70-year-old female with metastatic colonic adenocarcinoma was admitted in the intensive care unit because of a coma, four days after having received a combined monthly chemotherapy containing bevacizumab, oxaliplatine, 5 fluorouracil, and folinic acid for the fourth time. On clinical examination, she presented with lower limbs spasticity and hypertension. Etiologic investigations, including cerebral tomodensitometry, cerebrospinal fluid examination, psychotropic drugs urinary testing, and electroencephalogram, were negative. Consciousness improved without any other treatment than nicardipine and urapidil, but the patient was initially confused. Cerebral magnetic resonance imaging showed changes suggestive of posterior reversible encephalopathy syndrome, but also involving frontal lobes. There were additional biological and echocardiographic changes suggestive of cardiac involvement. The patient recovered completely of both cardiac and neurologic manifestations 10 days later.
    CONCLUSIONS: Physicians should be aware of cardiovascular adverse effects of bevacizumab. High blood pressure must be treated to avoid more severe complications. When a posterior reversible encephalopathy syndrome occurs, cardiac involvement should be investigated.
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