ABSTRAK
Latar belakang. Pada pasien SA fraksi ejeksi ventrikel kiri dapat normal bahkan supra normal untukjangka waktu yang lama walaupun proses remodeling ventrikel kiri sudah mulai terjadi..Ekokardiografi speckle tracking dua dimensi (EST) mempunyai kelebihan untukdigunakan dalam menilai penurunan fungsi kontraktilitas miokard subklinis, dimanakeadaan tersebut dapat mempengaruhi prognosis pasien SA. sST2 merupakan biomarkeryang relatif baru, dapat meningkat pada regangan otot jantung (myocardial stretch),fibrosis, inflamasi, dan injuri miokard, apakah berhubungan dengan disfungsi diniventrikel kiri masih belum diketahui.Tujuan. Mengetahui korelasi sST2 terhadap nilai GLS EST pada pasien SA berat denganFEVK normalMetode. Merupakan studi potong lintang. Evaluasi dilakukan pada 29 pasien stenosisaorta berat dengan fraksi ejeksi normal yang datang ke poliklinik RS Jantung HarapanKita periode Februari 2015 sampai November 2015. Dilakukan pengambilan figurekokardiografi untuk menilai severitas SA dan untuk perhitungan nilai global longitudinalstrain speckle tracking kemudian dilakukan pengambilan sampel darah di laboratoriumRS Jantung Harapan Kita untuk menilai sST2.Hasil Penelitian. Dua puluh sembilan subjek ikut dalam penelitian ini dengan rerata usiaadalah 59.7±12.1 tahun. Fungsi intrinsik ventrikel kiri pasien SA berat pada penelitian inimengalami penurunan dengan nilai rerata GLS -11±4.5%. Hasil uji korelasi menunjukanterdapat korelasi positif dengan kekuatan korelasi sedang yang bermakna (r=0.429,p=0.02). Analisis multivariat tetap menunjukkan adanya hubungan antara kadar sST2dengan nilai GLS EST (r=0,282 p=0.036). Kesimpulan. Terdapat korelasi sST2 dengan global longitudinal strain speckle trackingpada pasien SA berat dengan fraksi ejeksi normal.ABSTRACT
Background. In severe aortic stenosis (AS), cardiac performance measured at theventricular chamber is typically normal or supranormal, whereas Global LongitudinalStrain providing comprehensive information on LV myocardial contractility and issuperior in detecting subtle deteriorations. Impaired LV GLS is associated mortality riskand reflect fibrosis. sST2 is a novel biomarker of mechanical stress, fibrosis, inflamation,and myocardial injury. Whether sST2 is increased in relation to the subclinical LVdysfunction assessed by GLS in AS is unknown.Objectives. To study correlation beetwen sST2 and GLS in patients with AS severeMethods. This is a correlation study with cross sectional design. The subject was aorticstenosis severe patient (aortic valve area <1.0 cm2) with preserved EF (>50%) at ouroutpatient clinic in Harapan Kita Hospital from February 2015 until Novenber 2015. Acomprehensive transthoracic echocardiography was performed to evaluate severity ofaortic stenosis. and echocardiographic figure recordings were stored in digital for off-linesubsequent GLS analysis. sST2 measurements were drawn after echocardiography.Results. Twenty nine patient were enrolled in this study. The mean ages was 59.7±12.1years. left ventricle intrinsic function in aortic stenosis patient was decreased with GLS 11±4.5%.APearsoncorrelaterevealedsignificantpositivecorrelationbetweensST2andGLS(r=0.429, p=0.02). Multivariate analysis with introduced confounding factor stillshowed a positive correlation between sST2 and GLS (r=0,282 p=0.036). Conclusion. This cross sectional study demonstrated a moderate correlation betweensST2 with left ventricle global longitudinal strain speckle tracking in patients with severeaortic stenosis with preserved EF. ;Background. In severe aortic stenosis (AS), cardiac performance measured at theventricular chamber is typically normal or supranormal, whereas Global LongitudinalStrain providing comprehensive information on LV myocardial contractility and issuperior in detecting subtle deteriorations. Impaired LV GLS is associated mortality riskand reflect fibrosis. sST2 is a novel biomarker of mechanical stress, fibrosis, inflamation,and myocardial injury. Whether sST2 is increased in relation to the subclinical LVdysfunction assessed by GLS in AS is unknown.Objectives. To study correlation beetwen sST2 and GLS in patients with AS severeMethods. This is a correlation study with cross sectional design. The subject was aorticstenosis severe patient (aortic valve area <1.0 cm2) with preserved EF (>50%) at ouroutpatient clinic in Harapan Kita Hospital from February 2015 until Novenber 2015. Acomprehensive transthoracic echocardiography was performed to evaluate severity ofaortic stenosis. and echocardiographic figure recordings were stored in digital for off-linesubsequent GLS analysis. sST2 measurements were drawn after echocardiography.Results. Twenty nine patient were enrolled in this study. The mean ages was 59.7±12.1years. left ventricle intrinsic function in aortic stenosis patient was decreased with GLS 11±4.5%.APearsoncorrelaterevealedsignificantpositivecorrelationbetweensST2andGLS(r=0.429, p=0.02). Multivariate analysis with introduced confounding factor stillshowed a positive correlation between sST2 and GLS (r=0,282 p=0.036). Conclusion. This cross sectional study demonstrated a moderate correlation betweensST2 with left ventricle global longitudinal strain speckle tracking in patients with severeaortic stenosis with preserved EF. ;Background. In severe aortic stenosis (AS), cardiac performance measured at theventricular chamber is typically normal or supranormal, whereas Global LongitudinalStrain providing comprehensive information on LV myocardial contractility and issuperior in detecting subtle deteriorations. Impaired LV GLS is associated mortality riskand reflect fibrosis. sST2 is a novel biomarker of mechanical stress, fibrosis, inflamation,and myocardial injury. Whether sST2 is increased in relation to the subclinical LVdysfunction assessed by GLS in AS is unknown.Objectives. To study correlation beetwen sST2 and GLS in patients with AS severeMethods. This is a correlation study with cross sectional design. The subject was aorticstenosis severe patient (aortic valve area <1.0 cm2) with preserved EF (>50%) at ouroutpatient clinic in Harapan Kita Hospital from February 2015 until Novenber 2015. Acomprehensive transthoracic echocardiography was performed to evaluate severity ofaortic stenosis. and echocardiographic figure recordings were stored in digital for off-linesubsequent GLS analysis. sST2 measurements were drawn after echocardiography.Results. Twenty nine patient were enrolled in this study. The mean ages was 59.7±12.1years. left ventricle intrinsic function in aortic stenosis patient was decreased with GLS 11±4.5%.APearsoncorrelaterevealedsignificantpositivecorrelationbetweensST2andGLS(r=0.429, p=0.02). Multivariate analysis with introduced confounding factor stillshowed a positive correlation between sST2 and GLS (r=0,282 p=0.036). Conclusion. This cross sectional study demonstrated a moderate correlation betweensST2 with left ventricle global longitudinal strain speckle tracking in patients with severeaortic stenosis with preserved EF. ;Background. In severe aortic stenosis (AS), cardiac performance measured at theventricular chamber is typically normal or supranormal, whereas Global LongitudinalStrain providing comprehensive information on LV myocardial contractility and issuperior in detecting subtle deteriorations. Impaired LV GLS is associated mortality riskand reflect fibrosis. sST2 is a novel biomarker of mechanical stress, fibrosis, inflamation,and myocardial injury. Whether sST2 is increased in relation to the subclinical LVdysfunction assessed by GLS in AS is unknown.Objectives. To study correlation beetwen sST2 and GLS in patients with AS severeMethods. This is a correlation study with cross sectional design. The subject was aorticstenosis severe patient (aortic valve area <1.0 cm2) with preserved EF (>50%) at ouroutpatient clinic in Harapan Kita Hospital from February 2015 until Novenber 2015. Acomprehensive transthoracic echocardiography was performed to evaluate severity ofaortic stenosis. and echocardiographic figure recordings were stored in digital for off-linesubsequent GLS analysis. sST2 measurements were drawn after echocardiography.Results. Twenty nine patient were enrolled in this study. The mean ages was 59.7±12.1years. left ventricle intrinsic function in aortic stenosis patient was decreased with GLS 11±4.5%.APearsoncorrelaterevealedsignificantpositivecorrelationbetweensST2andGLS(r=0.429, p=0.02). Multivariate analysis with introduced confounding factor stillshowed a positive correlation between sST2 and GLS (r=0,282 p=0.036). Conclusion. This cross sectional study demonstrated a moderate correlation betweensST2 with left ventricle global longitudinal strain speckle tracking in patients with severeaortic stenosis with preserved EF. ;Background. In severe aortic stenosis (AS), cardiac performance measured at theventricular chamber is typically normal or supranormal, whereas Global LongitudinalStrain providing comprehensive information on LV myocardial contractility and issuperior in detecting subtle deteriorations. Impaired LV GLS is associated mortality riskand reflect fibrosis. sST2 is a novel biomarker of mechanical stress, fibrosis, inflamation,and myocardial injury. Whether sST2 is increased in relation to the subclinical LVdysfunction assessed by GLS in AS is unknown.Objectives. To study correlation beetwen sST2 and GLS in patients with AS severeMethods. This is a correlation study with cross sectional design. The subject was aorticstenosis severe patient (aortic valve area <1.0 cm2) with preserved EF (>50%) at ouroutpatient clinic in Harapan Kita Hospital from February 2015 until Novenber 2015. Acomprehensive transthoracic echocardiography was performed to evaluate severity ofaortic stenosis. and echocardiographic figure recordings were stored in digital for off-linesubsequent GLS analysis. sST2 measurements were drawn after echocardiography.Results. Twenty nine patient were enrolled in this study. The mean ages was 59.7±12.1years. left ventricle intrinsic function in aortic stenosis patient was decreased with GLS 11±4.5%.APearsoncorrelaterevealedsignificantpositivecorrelationbetweensST2andGLS(r=0.429, p=0.02). Multivariate analysis with introduced confounding factor stillshowed a positive correlation between sST2 and GLS (r=0,282 p=0.036). Conclusion. This cross sectional study demonstrated a moderate correlation betweensST2 with left ventricle global longitudinal strain speckle tracking in patients with severeaortic stenosis with preserved EF.