探讨心超和心电图在高血压性心脏病诊断中的临床价值

目的研究分析心脏B超以及心电图应用在高血压性心脏病临床诊断中的价值。方法抽取48例高血压性心脏病患者,将其按照每组24例划分为对照组和观察组,对照组通过心电图进行临床检查诊断,观察组则实施心脏B超检查诊断。结果观察组取得的诊断准确率为68.2%,显著高于对照组的38.7%(P0.05)。结论针对高血压性心脏病患者,采用心脏B超手段进行临床检查能够发挥良好的诊断效果,诊断准确性明显高于采用心电图检查。     

心电图与心脏超声诊断高血压性心脏病的效果比较

目的:分析心电图与心脏超声在诊断高血压性心脏病方面的效果差异。方法:选择2018年1月至2018年12月期间我院所收治的70例高血压性心脏病患者,对其心电图和心脏彩超的临床资料进行回顾性分析。分别使用心电图和心脏超声进行诊断,总结分析两者在诊断方面的作用。结果:本次研究结果显示,患者通过心脏彩超进行检查后,其阳性率远远高于用心电图进行检查,同时能够明确高血压性心脏病患者的早期心脏表现与变化情况。结论:心脏彩超在高血压性心脏病的诊断方面更加具备敏感性与特异性,与心电图进行结合使用可以更加直观、稳定地对疾病特征进行明确,为临床工作提供参考。     

What is the most cost-effective strategy to screen for left ventricular systolic dysfunction: natriuretic peptides, the electrocardiogram, hand-held echocardiography, traditional echocardiography, or their combination?

AIMS: To assess the screening characteristics and cost-effectiveness of screening for left ventricular systolic dysfunction (LVSD) in community subjects. METHODS AND RESULTS: A total of 1392 members of the general public and 928 higher risk subjects were randomly selected from seven community practices. Attending subjects underwent an ECG, N-terminal pro-brain natriuretic peptide (NTproBNP) serum levels, and traditional echocardiography (TE). A total of 533 consecutive subjects underwent hand-held echocardiography (HE). The screening characteristics and cost-effectiveness (cost per case of LVSD diagnosed) of eight strategies to predict LVSD (LVSD <45% on TE) were compared. A total of 1205 subjects attended. Ninety six per cent of subjects with LVSD in the general population had identifiable risk factors. All screening strategies gave excellent negative predictive value. Screening high-risk subjects was most cost-effective, screening low-risk subjects least cost-effective. TE screening was the least cost-effective strategy. NTproBNP screening gave similar cost savings to ECG screening; HE screening greater cost-savings, and HE screening following NTproBNP or ECG pre-screening the greatest cost-savings, costing approximately 650 Euros per case of LVSD diagnosed in high-risk subjects (63% cost-savings vs.TE). CONCLUSION: Thus several different modalities allow cost-effective community-based screening for LVSD, especially in high-risk subjects. Such programmes would be cost-effective and miss few cases of LVSD in the community.     

置起搏器的老年人心律失常分析及随访观察

分析２５例置永久心脏起搏器的老年人缓慢性心律失常，其中以病态窦房结综合征（ＳＳＳ）多见（２２例）。原发病以冠心病为主（２１例）。随访２～６９个月，全部患者原有症状消失，生活自理。置心室按需型起搏器已能达到治疗目的，尤以双腔起搏器（ＤＤＤ）之类的生理性起搏器者生活质量明显提高。置起搏器后单纯型ＳＳＳ者心律失常有所改善，但仍有１６％发生房颤，置ＤＤＤ者尚可发生起搏介入性心动过速，随访及时发现和处理新的心律失常不可忽视。     

心肌缺血预适应对急性心肌梗死ST段形态的影响

目的探讨心肌缺血预适应对急性心肌梗死ST段形态的影响。方法103例初发急性心肌梗死按入院时梗死相关导联ST段抬高形态分为凹面向上组和凸面向上组,以梗死发生前24h至少出现1次典型心绞痛症状为标准,比较两组频率。结果梗死前24h内出现心绞痛凹面向上组34例(73.91%),凸面向上组14例(24.56%);无心绞痛凹面向上组12例(26.09%),凸面向上组43例(75.44%)。两组差异均有非常显著性意义(P<0.01)。结论心肌缺血预适应是急性心肌梗死ST段凹面向上抬高的机制之一,根据心电图ST段凹面抬高推断其梗死前存在缺血预适应及由此产生的心肌保护作用对临床有重要意义。     

Comparison between Negative T waves characteristics in acute coronary syndrome and pulmonary embolism

Background

Electrocardiogram (ECG) is the first available modality used in patients with chest pain and dyspnea in emergency rooms.We aimed to study differences between acute coronary syndrome (ACS) and acute pulmonary embolism (APE) in patients presented primarily with abnormal negative T waves on their admission Electrocardiogram.

Negative flecainide test in Brugada syndrome patients with previous positive response.

Class I antiarrhythmic drug infusion has been established as the standard test to unmask Brugada syndrome. This report presents two patients with Brugada syndrome with positive flecainide response which was not reproducible in a subsequent test.     

Wide QRS Complex and Lateral ST-T Segment Abnormality Are Associated With Worse Clinical Outcomes in COVID-19 Patients

BackgroundThe information on electrocardiographic features of patients with coronavirus disease 2019 (COVID-19) is limited. Our aim was to determine if baseline electrocardiographic features of hospitalized COVID-19 patients are associated with markers of myocardial injury and clinical outcomes.MethodsIn this retrospective, single center cohort study, we included 223 hospitalized patients with laboratory-confirmed COVID-19. Clinical, electrocardiographic and laboratory data were collected and analyzed. Primary composite endpoint of mortality, need for invasive mechanical ventilation, or admission to the intensive care unit was assessed.ResultsForty patients (17.9%) reached the primary composite endpoint. Patients with the primary composite endpoint were more likely to have wide QRS complex (>120 ms) and lateral ST-T segment abnormality. The multivariable Cox regression showed increasing odds of the primary composite endpoint associated with acute respiratory distress syndrome (odds ratio 7.76, 95% CI 2.67–22.59; p < 0.001), acute cardiac injury (odds ratio 3.14, 95% CI 1.26–7.99; p = 0.016), high flow oxygen therapy (odds ratio 2.43, 95% CI 1.05–5.62; p = 0.037) and QRS duration longer than >120 ms (odds ratio 3.62, 95% CI 1.39–9.380; p = 0.008) Patients with a wide QRS complex (>120 ms) had significantly higher median level of troponin T and pro-BNP than those without it. Patients with abnormality of lateral ST-T segment had significantly higher median level of troponin T and pro-BNP than patients without.ConclusionsThe presence of QRS duration longer than 120 ms and lateral ST-T segment abnormality were associated with worse clinical outcomes and higher levels of myocardial injury biomarkers.