High-sensitive cardiac troponin T: a biomarker of left-ventricular diastolic dysfunction in hemodialysis patients

2018 ◽  
Vol 31 (6) ◽  
pp. 967-973 ◽  
Author(s):  
Linlin Sun ◽  
Yongqiang Ji ◽  
Yonglan Wang ◽  
Miao Ding ◽  
Xinmiao Xie ◽  
...  
2019 ◽  
Vol 9 (3) ◽  
pp. 190-200 ◽  
Author(s):  
Tatsunori Toida ◽  
Reiko Toida ◽  
Risa Yamashita ◽  
Norihiro Komiya ◽  
Shigehiro Uezono ◽  
...  

Background: Left ventricular diastolic dysfunction (LVDD) causes heart failure with a preserved left ventricular ejection fraction (LVEF) in the general population. Objective: To examine the relationships between the LVDD grades of the 2016 American Society of Echocardiography/European Association of Cardiovascular Imaging (ASE/EACVI) recommendations and several arteriosclerotic parameters and major cardiovascular events (MACE) in hemodialysis patients with preserved LVEF. Method: Sixty-three prevalent hemodialysis patients (median age [interquartile range], 69 [64–75] years, 31.7% female) with normal systolic function (LVEF > 50%) were enrolled. LVDD evaluated by echocardiography at baseline was divided into three groups according to ASE/EACVI recommendations (normal diastolic function [ND], n = 24; intermediate, n = 19; diastolic dysfunction [DD], n = 20). All patients underwent analyses of several arteriosclerotic parameters (carotid intima-media thickness [CIMT], plaque score [PS], ankle brachial index [ABI], and brachial-ankle pulse wave velocity [baPWV]). The presence or absence of postdialysis orthostatic hypotension was assessed in each dialysis session. MACE during the 1-year follow-up period was obtained from medical records. Kaplan-Meier and Cox’s regression analyses were used to investigate the relationship between LVDD grades and MACE. Results: Postdialysis orthostatic hypotension and PS, but not CIMT, ABI, or baPWV, increased proportionally with LVDD grades. Eleven patients developed MACE, including 2 cardiovascular deaths. The Kaplan-Meier analysis showed that MACE frequently occurred in the DD grade (p = 0.002 by the log-rank test). Cox’s regression analysis adjusted for potential confounders (age, sex, diabetes, systolic blood pressure, and body mass index) revealed that the DD grade was associated with MACE when the ND grade was set as a reference. Conclusions: In maintenance hemodialysis patients with normal ventricular systolic function, a classification of LVDD by the 2016 ASE/EACVI recommendations may be a useful tool for predicting cardiovascular events.


Author(s):  
Rahmad R. B. Wicaksono ◽  
Julian Dewantiningrum ◽  
Herman Kristanto

Abstract Objective: To know the relationship between high-sensitivity cardiac Troponin I (hscTnI) level with left ventricular dysfunction on severe preeclampsia.Methods: An observational analytics study with a cross-sectional approach of ten pregnant women with severe preeclampsia who underwent delivery or termination pregnancy and then performed a transthoracic echocardiography examination and serum levels of hscTnI.Results: There is a significant relationship between hscTnI levels and left ventricular diastolic dysfunction (p <0.05)Conclusion: These findings of this study have significant implications that severe preeclampsia is associated with heart remodelling and significant change in cardiac function especially left ventricular dilatation and elevation of hscTnI. Early identification and intervention may ameliorate subsequent cardiovascular disease so this requires regular and close follow-up of this target group.Keywords: high-sensitivity cardiac Troponin I, left ventricular diastolic dysfunction, severe preeclampsia.   Abstrak Tujuan: Untuk mengetahui hubungan antara kadar high-sensitivity cardiac Troponin I (hscTnI) dengan disfungsi ventrikel kiri pada preeklamsia berat.Metode: Studi observasional dengan pendekatan potong lintang terhadap sepuluh ibu hamil dengan preeklamsia berat yang menjalani persalinan atau terminasi kehamilan kemudian dilakukan pemeriksaan ekokardiografi dan kadar hscTnI serum.Hasil: Ada hubungan yang bermakna antara kadar hscTnI dengan disfungsi diastolik ventrikel kiri (p <0,05).Kesimpulan: Temuan penelitian awal ini memiliki implikasi yang signifikan bahwa preeklamsia berat berhubungan dengan remodeling jantung dan perubahan signifikan pada fungsi jantung terutama dilatasi ventrikel kiri disertai peningkatan kadar hscTnI. Identifikasi dan intervensi dini dapat memperbaiki perjalanan penyakit kardiovaskular sehingga diperlukan pengawasan lanjut pada kelompok pasien ini.Kata kunci: disfungsi diastolik ventrikel, high-sensitivity cardiac troponin I jantung sensitivitas tinggi, kiri, preeklamsia berat


2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Junne-Ming Sung ◽  
Chi-Ting Su ◽  
Yu-Tzu Chang ◽  
Yu-Ru Su ◽  
Wei-Chuan Tsai ◽  
...  

Using a speckle-tracking echocardiography (STE), we recently demonstrated that a left ventricular (LV) global longitudinal strain (GLS) ≥ −15% and the serum cardiac troponin T (cTnT) concentration are associated with mortality in stable hemodialysis patients with preserved LV ejection fraction (LVEF). In this study, we explored the relationship between cTnT and echocardiographic parameters and evaluated whether the prognostic value provided by cTnT is independent of a GLS ≥ −15% and vice versa. Eighty-eight stable hemodialysis patients with preserved LVEF were followed for 31 months. STE studies and measurements of cTnT were performed at baseline. CTnT concentration had a modest correlation with GLS (rs=0.44;P<0.001) but had a weak or nonsignificant correlation with other echocardiographic parameters. Adjusting for clinical parameters, hazard ratios for each increase of 0.01 ng/mL in cTnT, and a GLS ≥ −15% on mortality were 1.13 (P=0.009) and 3.09 (P=0.03) without significant interaction between cTnT and GLS ≥ −15%. In addition, an increased cTnT concentration, a GLS ≥ −15%, or their combination showed significant additional predictive value for mortality when included in models consisting of clinical parameters. Therefore, both cTnT and a GLS ≥ −15% are independent predictors of mortality and are useful for risk stratification.


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