BACKGROUND Coronary artery stenosis(CAS)is the most common type of heart disease and the leading cause of death in both men and women globally.CAS occurs when the arteries that supply blood to the heart muscle harden ...BACKGROUND Coronary artery stenosis(CAS)is the most common type of heart disease and the leading cause of death in both men and women globally.CAS occurs when the arteries that supply blood to the heart muscle harden and become narrower due to plaque buildup-cholesterol and other material-on their inner walls.As a result,the heart muscle cannot receive the blood or oxygen it needs.Most heart attacks happen when a blood clot suddenly cuts off the hearts'blood supply,causing permanent heart damage.AIM To analyze the relationship between the left ventricular ejection fraction(LVEF),left ventricular strain(LVS),and coronary stenosis.METHODS A total of 190 participants were enrolled in this trail.The control group comprised 93 healthy individuals,and observation group comprised 97 patients with coronary heart disease who were hospitalized between July 2020 and September 2021.Coronary lesions were assessed using the Gensini score,and the LVEF and LVS were measured using magnetic resonance imaging(MRI).The interaction between the LVEF and LVS was examined using a linear regression model.The relationship between LVEF and coronary stenosis was examined using Spearman’s correlation.RESULTS The LVEF of the observation group was lower than that of the control group.The left ventricular end-systolic volume(LVESV)and left ventricular end-diastolic volume(LVEDV)of the observation group were significantly higher than those of the control group(P<0.05).The longitudinal and circumferential strains(LS,CS)of the observation group were significantly higher than those of the control group;however,the radial strain(RS)of the observation group was significantly lower than that of the control group(P<0.05).LVS,LS,and CS were significantly negatively correlated with the LVEF,and RS was positively correlated with the LVEF.There were significant differences in the LVEF,LVESV,and LVEDV of patients with different Gensini scores;the LVEF significantly decreased and the LVESV and LVEDV increased with increasing Gensini scores(P<0.05).In the observation group,the LVEF was negatively correlated and the LVESV and LVEDV were positively correlated with coronary stenosis(P<0.05).CONCLUSION The LVEF measured using MRI is significantly linearly correlated with LVS and negatively correlated with coronary stenosis.展开更多
目的:研究阵发性房颤,持续性房颤和永久性房颤患者超敏C反应蛋白(high sensitivity C reaction protein,hsCRP)水平,左室射血分数(LVEF)及左房内径(LAD)的变化,探讨炎症反应对心房颤动的影响。方法:比较阵发性房颤、持续性房颤和永久性...目的:研究阵发性房颤,持续性房颤和永久性房颤患者超敏C反应蛋白(high sensitivity C reaction protein,hsCRP)水平,左室射血分数(LVEF)及左房内径(LAD)的变化,探讨炎症反应对心房颤动的影响。方法:比较阵发性房颤、持续性房颤和永久性房颤患者同对照组hCRP、LVEF和LAD三者的变化。结果:房颤组与对照组相比,左房内径大于对照组(P<0.05);持续性房颤左房内径大于阵发性房颤组(P<0.05),永久性房颤组左房内径大于阵发性房颤组(P<0.05)。房颤组与对照组相比,左室射血分数低于对照组(P<0.05)。房颤组与对照组比较,各房颤组血清hsCRP浓度明显高于对照组(P<0.05);持续性和永久性房颤组hsCRP比阵发性房颤亚组高(P<0.05),持续性房颤和永久性房颤亚组hsCRP浓度差异无统计学意义(P>0.05)。结论:房颤组与对照组相比房颤患者hsCRP增高和LAD增加而LVEF下降。展开更多
目的探讨ST段抬高型急性心肌梗死(ST-segment elevation acute myocardial infarction,STEAMI)患者的心电图表现与近期左心室功能的相关性。方法对60例STEAMI患者在入院时及三个月后行心电图与超声心动图检查,分析结果。结果患者V1~V6...目的探讨ST段抬高型急性心肌梗死(ST-segment elevation acute myocardial infarction,STEAMI)患者的心电图表现与近期左心室功能的相关性。方法对60例STEAMI患者在入院时及三个月后行心电图与超声心动图检查,分析结果。结果患者V1~V6导联中ST段抬高幅度之和1.72 m V,R波振幅之和3.28 m V,Q波振幅之和2.83 m V,Q波导联数为5个,ST段抬高最大振幅值4.32 m V,左心室舒张末期内径(LVEDd)为51.34 mm,急性期左室射血分数(LVEF)为56.19%;Killip分级1级32例、2级15例、3级10例、4级3例;三个月后LVEDd、LVEF分别为45.87 mm和59.20%;ST段抬高幅度之和、Q波振幅之和、Q波导联数与Killip分级、三个月后LVEDd呈正相关(r=0.54、0.52),与三个月后LVEF呈负相关(r=-0.56),R波振幅之和与三个月后LVEDd呈负相关(r=-0.61),与三个月后LVEF呈正相关(r=0.46)。结论 STEAMI患者ST段抬高幅度、R波振幅、Q波振幅、Q波导联数等与左心室功能关系密切,可用于患者左心室功能的近期预测。展开更多
文摘BACKGROUND Coronary artery stenosis(CAS)is the most common type of heart disease and the leading cause of death in both men and women globally.CAS occurs when the arteries that supply blood to the heart muscle harden and become narrower due to plaque buildup-cholesterol and other material-on their inner walls.As a result,the heart muscle cannot receive the blood or oxygen it needs.Most heart attacks happen when a blood clot suddenly cuts off the hearts'blood supply,causing permanent heart damage.AIM To analyze the relationship between the left ventricular ejection fraction(LVEF),left ventricular strain(LVS),and coronary stenosis.METHODS A total of 190 participants were enrolled in this trail.The control group comprised 93 healthy individuals,and observation group comprised 97 patients with coronary heart disease who were hospitalized between July 2020 and September 2021.Coronary lesions were assessed using the Gensini score,and the LVEF and LVS were measured using magnetic resonance imaging(MRI).The interaction between the LVEF and LVS was examined using a linear regression model.The relationship between LVEF and coronary stenosis was examined using Spearman’s correlation.RESULTS The LVEF of the observation group was lower than that of the control group.The left ventricular end-systolic volume(LVESV)and left ventricular end-diastolic volume(LVEDV)of the observation group were significantly higher than those of the control group(P<0.05).The longitudinal and circumferential strains(LS,CS)of the observation group were significantly higher than those of the control group;however,the radial strain(RS)of the observation group was significantly lower than that of the control group(P<0.05).LVS,LS,and CS were significantly negatively correlated with the LVEF,and RS was positively correlated with the LVEF.There were significant differences in the LVEF,LVESV,and LVEDV of patients with different Gensini scores;the LVEF significantly decreased and the LVESV and LVEDV increased with increasing Gensini scores(P<0.05).In the observation group,the LVEF was negatively correlated and the LVESV and LVEDV were positively correlated with coronary stenosis(P<0.05).CONCLUSION The LVEF measured using MRI is significantly linearly correlated with LVS and negatively correlated with coronary stenosis.
文摘目的:研究阵发性房颤,持续性房颤和永久性房颤患者超敏C反应蛋白(high sensitivity C reaction protein,hsCRP)水平,左室射血分数(LVEF)及左房内径(LAD)的变化,探讨炎症反应对心房颤动的影响。方法:比较阵发性房颤、持续性房颤和永久性房颤患者同对照组hCRP、LVEF和LAD三者的变化。结果:房颤组与对照组相比,左房内径大于对照组(P<0.05);持续性房颤左房内径大于阵发性房颤组(P<0.05),永久性房颤组左房内径大于阵发性房颤组(P<0.05)。房颤组与对照组相比,左室射血分数低于对照组(P<0.05)。房颤组与对照组比较,各房颤组血清hsCRP浓度明显高于对照组(P<0.05);持续性和永久性房颤组hsCRP比阵发性房颤亚组高(P<0.05),持续性房颤和永久性房颤亚组hsCRP浓度差异无统计学意义(P>0.05)。结论:房颤组与对照组相比房颤患者hsCRP增高和LAD增加而LVEF下降。
文摘目的探讨ST段抬高型急性心肌梗死(ST-segment elevation acute myocardial infarction,STEAMI)患者的心电图表现与近期左心室功能的相关性。方法对60例STEAMI患者在入院时及三个月后行心电图与超声心动图检查,分析结果。结果患者V1~V6导联中ST段抬高幅度之和1.72 m V,R波振幅之和3.28 m V,Q波振幅之和2.83 m V,Q波导联数为5个,ST段抬高最大振幅值4.32 m V,左心室舒张末期内径(LVEDd)为51.34 mm,急性期左室射血分数(LVEF)为56.19%;Killip分级1级32例、2级15例、3级10例、4级3例;三个月后LVEDd、LVEF分别为45.87 mm和59.20%;ST段抬高幅度之和、Q波振幅之和、Q波导联数与Killip分级、三个月后LVEDd呈正相关(r=0.54、0.52),与三个月后LVEF呈负相关(r=-0.56),R波振幅之和与三个月后LVEDd呈负相关(r=-0.61),与三个月后LVEF呈正相关(r=0.46)。结论 STEAMI患者ST段抬高幅度、R波振幅、Q波振幅、Q波导联数等与左心室功能关系密切,可用于患者左心室功能的近期预测。
