Some studies have shown that left ventricular structure and function play an important role in the risk stratifi cation and prognosis of cardiovascular disease.The clinical application of left atrial function in cardi...Some studies have shown that left ventricular structure and function play an important role in the risk stratifi cation and prognosis of cardiovascular disease.The clinical application of left atrial function in cardiovascular disease has gradually attracted attention in the cardiovascular fi eld.There are many traditional methods to evaluate left atrial function.Left atrial function related indexes measured by echocardiography has been identifi ed as a powerful predictor of cardiovascular disease in recent years,but they have some limitations.The left atrial function index has been found to evaluate left atrial function more effectively than traditional parameters.Furthermore,it is a valuable predictor of the risk stratifi cation and prognosis in patients with clinical cardiovascular disease such as heart failure,atrial fi brillation,hypertension,and coronary heart disease.展开更多
Objective To evaluate left atrial function in essential hypertension patients with different patterns of left ventricular geometric models by real-time three-dimensional echocardiography （RT-3DE） and left atrial tra...Objective To evaluate left atrial function in essential hypertension patients with different patterns of left ventricular geometric models by real-time three-dimensional echocardiography （RT-3DE） and left atrial tracking （EAT）.展开更多
The left atrium (LA) has been recognized as a morphophysiological barometer of left ventricular (LV) diastolic dysfunction. Because in the myocardial ischemia cascade where LV diastolic dysfunction often precedes LV s...The left atrium (LA) has been recognized as a morphophysiological barometer of left ventricular (LV) diastolic dysfunction. Because in the myocardial ischemia cascade where LV diastolic dysfunction often precedes LV systolic dysfunction, the LA which fashions as an early marker of diastolic anomaly, could equally reflect a declining LV function and/or be a good predictor of potential sequelae. We assessed this association of LA function with reduced LV systolic function among hospitalized patients. Among patients with reduced LV ejection fraction, LA passive ejection fraction was lower (0.172 ± 0.12 vs. 0.232 ± 0.14, p = 0.013) whereas LA kinetic energy was higher (6.48 ± 6.3 vs. 4.57 ± 3.5, p = 0.005). Echocardiographic assessment of LA function, therefore, appears correlated with LVEF and could be important when risk stratifying hospitalized patients.展开更多
Background: The aim of this study was to determine the relation of left atrial (LA) volume and LA volume index with left ventricular function and to determine the association of duration of symptoms and left atrial vo...Background: The aim of this study was to determine the relation of left atrial (LA) volume and LA volume index with left ventricular function and to determine the association of duration of symptoms and left atrial volume index in patients with dilated cardiomyopathy. Materials and Methods: This was an observational, single centre study conducted in India. A total of 50 patients who were admitted to department of cardiology from July, 2008 to February, 2009 with diagnosis of dilated cardiomyopathy and an ejection fraction of <40% were included. Results: Of the 50 patients, 34 (68%) were males. 27 (54%) patients were in NYHA class II and 23 (46%) patients were in NYHA class III. LA volume was found to be ≥40 ml in all patients. LV function and LA volume were found to be correlated (r = -0.789, p < 0.01). Similarly, there was a correlation between LV function and LA volume index (r = -0.826, p < 0.01). There was no correlation between LA volume index and duration of symptoms (r = 0.04). Conclusion: It can be concluded that there is a strong inverse correlation between LA volume and left ventricular function and also between LA volume index and left ventricular function. The patients with NYHA class III were having larger left atrial volume than those with NYHA class II. Moreover, the duration of symptoms has no correlation with left atrial volume index.展开更多
目的:应用四维自动左心房定量分析(4D Auto LAQ)技术评估经导管主动脉瓣置换术(TAVR)治疗患者术后早期左心房容积和功能改善情况。方法:选取2020年6月—2022年6月在四川省人民医院行TAVR的43例患者,分别于术前3 d及术后3月行心脏超声检...目的:应用四维自动左心房定量分析(4D Auto LAQ)技术评估经导管主动脉瓣置换术(TAVR)治疗患者术后早期左心房容积和功能改善情况。方法:选取2020年6月—2022年6月在四川省人民医院行TAVR的43例患者,分别于术前3 d及术后3月行心脏超声检查。常规测量二维超声心动图参数,应用4D Auto LAQ技术测量四维左心房容积及应变参数,分析TAVR患者手术前后各参数差异。结果:术后3月,TAVR患者主动脉瓣峰值血流速度(AV)较术前显著降低(P<0.001),左心房排空容积指数(LAEVI)、左心房被动排血容积(LAVp)、左心房被动排血容积指数(LAVIp)、左心房射血分数(LAEF)、左心房被动排血分数(LApEF)较术前增大(P<0.05),左心房最小容积(LAVmin)、左心房最小容积指数(LAVImin)、左心房最大容积(LAVmax)、左心房最大容积指数(LAVImax)、左心房主动收缩前容积(LAVpreA)、左心房主动收缩前容积指数(LAVIpreA)、左心房主动排空容积(LAVa)、左心房主动排空容积指数(LAVIa)较术前减小(P<0.05),左心房应变参数均较术前改善(P<0.05),而左心室舒张早期二尖瓣前向血流频谱(E峰)、左心房排空容积(LAEV)、左心房主动射血分数(LAaEF)变化不明显(P>0.05)。结论:4D Auto LAQ技术可有效评估TAVR治疗患者术后早期左心房容积和功能改善情况,有望为评价TAVR疗效提供可靠的参考指标。展开更多
V_(1)导联P波终末电势(P-wave terminal force in V_(1),PtfV_(1))又称Morris指数,在心房颤动(简称房颤)相关脑卒中风险评估方面有着举足轻重的作用。PtfV_(1)与急性缺血性脑卒中、急性心肌梗死后的新发房颤、冠状动脉病变、心力衰竭、...V_(1)导联P波终末电势(P-wave terminal force in V_(1),PtfV_(1))又称Morris指数,在心房颤动(简称房颤)相关脑卒中风险评估方面有着举足轻重的作用。PtfV_(1)与急性缺血性脑卒中、急性心肌梗死后的新发房颤、冠状动脉病变、心力衰竭、左心室舒张功能障碍、睡眠呼吸障碍、急性精神压力、弥漫性大B细胞淋巴瘤等疾病的诊断和预后预测也有一定相关性。本文主要综述PtfV_(1)应用于多种临床疾病诊断及预后预测的最新研究进展。展开更多
基金This work was supported by grants from the National Natural Science Foundation of China(81800056),the Science&Technology Development Fund of Tianjin Education Commission for Higher Education(2017KJ137),and the Key Research and Development Program of Hunan Province(2019SK2021).Scientifi c research project approved by Hunan Provincial Health Commission(202103012117).
文摘Some studies have shown that left ventricular structure and function play an important role in the risk stratifi cation and prognosis of cardiovascular disease.The clinical application of left atrial function in cardiovascular disease has gradually attracted attention in the cardiovascular fi eld.There are many traditional methods to evaluate left atrial function.Left atrial function related indexes measured by echocardiography has been identifi ed as a powerful predictor of cardiovascular disease in recent years,but they have some limitations.The left atrial function index has been found to evaluate left atrial function more effectively than traditional parameters.Furthermore,it is a valuable predictor of the risk stratifi cation and prognosis in patients with clinical cardiovascular disease such as heart failure,atrial fi brillation,hypertension,and coronary heart disease.
基金Supported by the Natural Science Foundation of Liaoning ProvinceChina(2013023010)
文摘Objective To evaluate left atrial function in essential hypertension patients with different patterns of left ventricular geometric models by real-time three-dimensional echocardiography （RT-3DE） and left atrial tracking （EAT）.
文摘The left atrium (LA) has been recognized as a morphophysiological barometer of left ventricular (LV) diastolic dysfunction. Because in the myocardial ischemia cascade where LV diastolic dysfunction often precedes LV systolic dysfunction, the LA which fashions as an early marker of diastolic anomaly, could equally reflect a declining LV function and/or be a good predictor of potential sequelae. We assessed this association of LA function with reduced LV systolic function among hospitalized patients. Among patients with reduced LV ejection fraction, LA passive ejection fraction was lower (0.172 ± 0.12 vs. 0.232 ± 0.14, p = 0.013) whereas LA kinetic energy was higher (6.48 ± 6.3 vs. 4.57 ± 3.5, p = 0.005). Echocardiographic assessment of LA function, therefore, appears correlated with LVEF and could be important when risk stratifying hospitalized patients.
文摘Background: The aim of this study was to determine the relation of left atrial (LA) volume and LA volume index with left ventricular function and to determine the association of duration of symptoms and left atrial volume index in patients with dilated cardiomyopathy. Materials and Methods: This was an observational, single centre study conducted in India. A total of 50 patients who were admitted to department of cardiology from July, 2008 to February, 2009 with diagnosis of dilated cardiomyopathy and an ejection fraction of <40% were included. Results: Of the 50 patients, 34 (68%) were males. 27 (54%) patients were in NYHA class II and 23 (46%) patients were in NYHA class III. LA volume was found to be ≥40 ml in all patients. LV function and LA volume were found to be correlated (r = -0.789, p < 0.01). Similarly, there was a correlation between LV function and LA volume index (r = -0.826, p < 0.01). There was no correlation between LA volume index and duration of symptoms (r = 0.04). Conclusion: It can be concluded that there is a strong inverse correlation between LA volume and left ventricular function and also between LA volume index and left ventricular function. The patients with NYHA class III were having larger left atrial volume than those with NYHA class II. Moreover, the duration of symptoms has no correlation with left atrial volume index.
文摘目的:应用四维自动左心房定量分析(4D Auto LAQ)技术评估经导管主动脉瓣置换术(TAVR)治疗患者术后早期左心房容积和功能改善情况。方法:选取2020年6月—2022年6月在四川省人民医院行TAVR的43例患者,分别于术前3 d及术后3月行心脏超声检查。常规测量二维超声心动图参数,应用4D Auto LAQ技术测量四维左心房容积及应变参数,分析TAVR患者手术前后各参数差异。结果:术后3月,TAVR患者主动脉瓣峰值血流速度(AV)较术前显著降低(P<0.001),左心房排空容积指数(LAEVI)、左心房被动排血容积(LAVp)、左心房被动排血容积指数(LAVIp)、左心房射血分数(LAEF)、左心房被动排血分数(LApEF)较术前增大(P<0.05),左心房最小容积(LAVmin)、左心房最小容积指数(LAVImin)、左心房最大容积(LAVmax)、左心房最大容积指数(LAVImax)、左心房主动收缩前容积(LAVpreA)、左心房主动收缩前容积指数(LAVIpreA)、左心房主动排空容积(LAVa)、左心房主动排空容积指数(LAVIa)较术前减小(P<0.05),左心房应变参数均较术前改善(P<0.05),而左心室舒张早期二尖瓣前向血流频谱(E峰)、左心房排空容积(LAEV)、左心房主动射血分数(LAaEF)变化不明显(P>0.05)。结论:4D Auto LAQ技术可有效评估TAVR治疗患者术后早期左心房容积和功能改善情况,有望为评价TAVR疗效提供可靠的参考指标。
文摘V_(1)导联P波终末电势(P-wave terminal force in V_(1),PtfV_(1))又称Morris指数,在心房颤动(简称房颤)相关脑卒中风险评估方面有着举足轻重的作用。PtfV_(1)与急性缺血性脑卒中、急性心肌梗死后的新发房颤、冠状动脉病变、心力衰竭、左心室舒张功能障碍、睡眠呼吸障碍、急性精神压力、弥漫性大B细胞淋巴瘤等疾病的诊断和预后预测也有一定相关性。本文主要综述PtfV_(1)应用于多种临床疾病诊断及预后预测的最新研究进展。
