BACKGROUND The estimation of left ventricular ejection fraction(LVEF)by 2D echocardiography(2D-ECHO)is the most used tool to assess LV systolic function(LVSF).Global longitudinal strain(GLS)has recently been suggested...BACKGROUND The estimation of left ventricular ejection fraction(LVEF)by 2D echocardiography(2D-ECHO)is the most used tool to assess LV systolic function(LVSF).Global longitudinal strain(GLS)has recently been suggested as a superior method for several evaluations.This study explored the association and prevalence of LV systolic dysfunction(LVSD)by using these methods in patients with end-stage renal disease(ESRD)and severe hyperparathyroidism(SHPTH);both associated with cardiovascular events(CEs).AIM To evaluate the myocardial function in patients with ESRD and SHPTH by using the GLS and LVEF measured through conventional 2D-ECHO.METHODS In 62 patients with ESRD and SHPTH,asymptomatic,and without a history of CEs,LVSF was evaluated by 2D-ECHO,obtaining the EF,by the Simpson biplane method,and GLS by speckle tracking.RESULTS The total patients with ESRD had a preserved LVEF(>50%)but abnormal GLS(<13.55%).Additionally,multivariate analysis showed an independent association of GLS and serum parathyroid hormone(PTH),LV mass index,and hemoglobin.Also,PTH was independently associated with lateral e'wave and tricuspid regurgitation velocity.CONCLUSION In patients with SHPTH linked to ESRD,the use of GLS by 2D-ECHO is a more sensitive tool than LVEF for detecting LVSD.展开更多
目的应用斑点追踪显像(STI)技术检测高血压患者左心室重构过程中左室舒缩功能的改变。方法选取正常对照组(40例)和高血压患者(60例),按照Ganau分型法将高血压患者分为正常构型组(LVN组)和左室重构组(LVR组),其中LVR组包括向心性重构(13...目的应用斑点追踪显像(STI)技术检测高血压患者左心室重构过程中左室舒缩功能的改变。方法选取正常对照组(40例)和高血压患者(60例),按照Ganau分型法将高血压患者分为正常构型组(LVN组)和左室重构组(LVR组),其中LVR组包括向心性重构(13例)、向心性肥厚(7例)和离心性肥厚(10例)。应用STI技术获得左室6个壁基底段、中间段、心尖段的舒张早期峰值应变率(Sre)、舒张晚期峰值应变率(Sra)、收缩期峰值应变(SLs)及应变率(Sr Ls),并计算平均峰值应变及应变率(m SLs、m Sr Ls、m Sr Le、m Sr La及m Sr Le/m Srla)。结果舒张功能:与正常组比较,LVN组及LVR组Sr Le降低,LVR组部分节段Sr La升高,差异有统计学意义(P<0.05);与正常组比较,LVR组m Sr Le,m Sr Le/m Sr La降低,m Sr La升高,差异有统计学意义(P<0.05)。收缩功能:与正常组比较,LVN组及LVR组SLs、m SLs、Sr Ls、及m Sr Ls降低,差异有统计学意义(P<0.05),LVR组SLs、m SLs、Sr Ls及m Sr Ls较LVN组减低,差异有统计学意义(P<0.05)。结论 STI技术能准确地测量高血压病患者舒张期及收缩期左室心肌应变率,对评价高血压患者左室舒缩功能具有重要临床意义。展开更多
基金Supported by the Secretaría de Investigación y Posgrado of the Instituto Politécnico Nacionalthe Comisión de Operación y Fomento de Actividades Académicas of the Instituto Politécnico Nacionalthe Consejo Nacional de Ciencia y Tecnología
文摘BACKGROUND The estimation of left ventricular ejection fraction(LVEF)by 2D echocardiography(2D-ECHO)is the most used tool to assess LV systolic function(LVSF).Global longitudinal strain(GLS)has recently been suggested as a superior method for several evaluations.This study explored the association and prevalence of LV systolic dysfunction(LVSD)by using these methods in patients with end-stage renal disease(ESRD)and severe hyperparathyroidism(SHPTH);both associated with cardiovascular events(CEs).AIM To evaluate the myocardial function in patients with ESRD and SHPTH by using the GLS and LVEF measured through conventional 2D-ECHO.METHODS In 62 patients with ESRD and SHPTH,asymptomatic,and without a history of CEs,LVSF was evaluated by 2D-ECHO,obtaining the EF,by the Simpson biplane method,and GLS by speckle tracking.RESULTS The total patients with ESRD had a preserved LVEF(>50%)but abnormal GLS(<13.55%).Additionally,multivariate analysis showed an independent association of GLS and serum parathyroid hormone(PTH),LV mass index,and hemoglobin.Also,PTH was independently associated with lateral e'wave and tricuspid regurgitation velocity.CONCLUSION In patients with SHPTH linked to ESRD,the use of GLS by 2D-ECHO is a more sensitive tool than LVEF for detecting LVSD.
文摘目的应用斑点追踪显像(STI)技术检测高血压患者左心室重构过程中左室舒缩功能的改变。方法选取正常对照组(40例)和高血压患者(60例),按照Ganau分型法将高血压患者分为正常构型组(LVN组)和左室重构组(LVR组),其中LVR组包括向心性重构(13例)、向心性肥厚(7例)和离心性肥厚(10例)。应用STI技术获得左室6个壁基底段、中间段、心尖段的舒张早期峰值应变率(Sre)、舒张晚期峰值应变率(Sra)、收缩期峰值应变(SLs)及应变率(Sr Ls),并计算平均峰值应变及应变率(m SLs、m Sr Ls、m Sr Le、m Sr La及m Sr Le/m Srla)。结果舒张功能:与正常组比较,LVN组及LVR组Sr Le降低,LVR组部分节段Sr La升高,差异有统计学意义(P<0.05);与正常组比较,LVR组m Sr Le,m Sr Le/m Sr La降低,m Sr La升高,差异有统计学意义(P<0.05)。收缩功能:与正常组比较,LVN组及LVR组SLs、m SLs、Sr Ls、及m Sr Ls降低,差异有统计学意义(P<0.05),LVR组SLs、m SLs、Sr Ls及m Sr Ls较LVN组减低,差异有统计学意义(P<0.05)。结论 STI技术能准确地测量高血压病患者舒张期及收缩期左室心肌应变率,对评价高血压患者左室舒缩功能具有重要临床意义。