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B tip natriuretskog peptida i troponin T kao nezavisni prediktori kardiovaskularnog mortaliteta bolesnika u predijaliznom stadijumu hronične bubrežne slabosti
- Source :
- Timočki medicinski glasnik
- Publication Year :
- 2017
-
Abstract
- Upotreba kardijalnih biomarkera u prognostičke svrhe široko je ispitivana u opštoj populaciji i populaciji bolesnika na hemodijalizi, ali ne i kod bolesnika u ranijim stadijumima hronične bubrežne slabosti (HBS). Cilj naše studije bio je određivanje prognostičke vrednosti kardijalnih biomarkera [B tipa natriuretskog peptida (BNP-a), njegovog neaktivnog aminoterminalnog fragmenta (NTproBNP-a), troponina T (TnT), troponina I (TnI) i visokosenzitivnog C-reaktivnog proteina (hsCRP-a)] za kardiovaskularni mortalitet kod asimptomatskih predijaliznih bolesnika sa IV i V stadijumom HBS. Istraživanjem je obuhvaćen 61 bubrežni bolesnik (34 M, prosečne starosti 62,6±13,6 godina, GFR 15,8±5,7 ml/min). Svaki ispitanik je podvrgnut kliničkoj proceni, laboratorijskom ispitivanju, ehokardiografskom pregledu i ultrazvučnom pregledu karotidnih arterija. Tokom perioda praćenja bolesnika (medijana: 28 meseci), zabeleženo je 18 smrtnih ishoda, od čega 9 kardiovaskularnog porekla. U multivarijantnoj Cox regresionoj analizi, nezavisnu prediktivnu vrednost za kardiovaskularni mortalitet pokazali su: BNP (p=0,004), aortne kacifikacije (p=0,005), TnT (0,018) i s-urea (p=0,046). Optimalna cut off vrednost BNP-a za predviđanje kardiovaskularnog mortaliteta iznosila je 220,8 pg/ml, sa senzitivnošću 85,7% i specifičnošću 78% (AUC= 0,831; p=0,005), dok se cut off vrednost TnT 0,05 ng/ml pokazala takođe značajnom, sa senzitivnošću 77,8% i specifičnošću 78,8% (AUC=0.798; p=0.005). Stratifikovana analiza Kaplan-Meyer-ovih kriva pokazala je statistički značajnu razliku između bolesnika sa različitim nivoima BNP-a (p=0.024), TnT (p=0.001) i NTproBNP-a (p=0.033) u odnosu na kardiovaskularno preživljavanje. Kao nezavisni prediktori kardiovaskularnog mortaliteta, BNP-a i TnT mogu poslužiti u svrhu stratifikacije KV rizika kod asimptomatskih bolesnika sa uznapredovalom HBS, koji još nisu započeli lečenje dijalizom.<br />The use of cardiac biomarkers in prognostic purposes has been widely studied in the general population and the population of hemodialysis patients but not in patients with early-stage chronic kidney disease (peptide (BNP), N-terminal fragment of BNP (NTproBNP-a), troponin T (TnT), troponin I (TnI) CKD). The aim of this study was to determine the prognostic value of cardiac biomarkers [B-type natriuretic and highly sensitive C-reactive protein (hsCRP -a)] for cardiovascular mortality in asymptomatic predialysis CKD patients, stage IV and V. The study included 61 CKD patients (34 M, average age 62.6 ± 13.6 years, GFR 15.8±5.7 ml/min). All subjects underwent clinical evaluation, laboratory testing, echocardiographic examination and carotid artery ultrasound examination of the carotid arteries. During the period of follow-up (median 28 months), there were 18 deaths of which 9 were cardiovascular in origin. In a multivariate Cox regression analysis, BNP (p = 0.004), aortic calcification (p = 0.005), the TnT (0.018) and serum urea (p = 0.046) showed the independent predictive value for cardiovascular mortality. The optimal cut-off value of BNP for predicting _ cardiovascular mortality rate was 220.8 pg/ml. with a sensitivity of 85.7% and specificity of 78% (AUC = 0.831; p = 0.005) while the TnT cut off value of 0.05 ng / ml was also found to be significant with a sensitivity of 77.8% and a specificity of 78.8% (AUC = 0.798; p = 0.005). In stratified analysis, Kaplan-Meier curves showed _statistically significant differences in cardiovascular survival in patients with different levels of BNP (p = 0.024), TnT (p = 0.001) and NTproBNP (p = 0.033). As independent predictors of cardiovascular mortality, BNP and TnT can be used to stratify CV risk in asymptomatic patients with advanced HBS who have not started dialysis treatments yet.
Details
- Database :
- OAIster
- Journal :
- Timočki medicinski glasnik
- Notes :
- Timočki medicinski glasnik
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1388682464
- Document Type :
- Electronic Resource