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1.
Ren Fail ; 37(6): 951-6, 2015 Jul.
Article in English | MEDLINE | ID: mdl-26030798

ABSTRACT

INTRODUCTION: Left ventricular hypertrophy (LVH) is a significant risk factor for cardiovascular complications in hemodialysis (HD) patients. Hypervolemia has been accepted as an independent risk factor for progressive LVH in HD patients. Additionally, high FGF23 levels have been a significant predictor of cardiovascular mortality and morbidity in chronic kidney disease and HD patients. The aim of our study is to investigate the correlation among LVH, interdialytic volume increase and FGF-23 in the patients on a chronic hemodialysis program. DESIGN AND METHODS: A total of 97 chronic hemodialysis patients (64.43 ± 11.28 years old, M/F:47/50) were included in the study. Human FGF-23 ELISA kit was used for FGF-23 analysis of predialysis blood samples. Echocardiographic evaluation was performed in all of the patients after dialysis. Left Ventricular Mass Index (LVMI) was calculated by using the Devereux Formula. We collected the following data: LVMI, FGF-23 levels, interdialytic fluid gain, blood pressure changes, and the other biochemical and clinical parameters. RESULTS: Mean LVMI of the patients was 184.41 ± 48.62 g/m(2). LVMI of the patients with daily urine output > 250 mL was found significantly lower. Statistically significant positive correlation was found between predialysis systolic blood pressure, predialysis diastolic blood pressure, predialysis mean arterial blood pressure and LVMI measurements (p < 0.01). Mean interdialytic volume excess was correlated with LVMI measurements of the patients (r = 0.459; p < 0.01). Increased FGF-23 levels (159.79 ± 134.99 ng/L) predicted increased LVMI measurements of the patients (r = 0.322; p < 0.01). In addition, FGF-23 levels were also increased as the interdialytic fluid volume increased (r = 0.326; p < 0.05). A positive correlation was also found between FGF-23 levels and interventricular septum thickness (r = 0.238; p < 0.05). Predialysis mean arterial blood pressure, predialysis volume overload and presence of diabetes were determined to be independent risk factors on LVMI on multivariate regression analysis. CONCLUSION: Our study showed that interdialytic volume overload increased both LVMI and FGF-23 values. We can consider that interdialytic volume control exerts positive effects on increased FGF-23 levels which predict the negative cardiovascular outcomes.


Subject(s)
Fibroblast Growth Factors/blood , Hypertrophy, Left Ventricular/etiology , Hypertrophy, Left Ventricular/mortality , Kidney Failure, Chronic/therapy , Renal Dialysis/adverse effects , Water-Electrolyte Imbalance/complications , Adult , Aged , Biomarkers/blood , Cohort Studies , Disease Progression , Echocardiography, Doppler/methods , Female , Fibroblast Growth Factor-23 , Hemodialysis Units, Hospital , Humans , Hypertrophy, Left Ventricular/blood , Kidney Failure, Chronic/diagnosis , Kidney Failure, Chronic/mortality , Linear Models , Male , Middle Aged , Predictive Value of Tests , Prognosis , Prospective Studies , Renal Dialysis/methods , Risk Assessment , Survival Rate , Treatment Outcome , Turkey , Water-Electrolyte Imbalance/diagnosis
3.
Anadolu Kardiyol Derg ; 8(3): 182-7, 2008 Jun.
Article in English | MEDLINE | ID: mdl-18524723

ABSTRACT

OBJECTIVE: Brain natriuretic peptide (BNP) is secreted predominantly from the ventricles in response to increased wall stress, which is known to be one of the major forces driving left ventricular (LV) remodeling. In this prospective study, we evaluated value of BNP levels in acute myocardial infarction (MI) patients for the prediction of heart failure during one year of follow-up. METHODS: Seventy-four patients with a first ST-elevation MI were examined prospectively after 5 days and 1 month with echocardiography and blood samples for BNP were obtained. Clinical events were recorded during 12 months of follow-up. Multivariate linear regression analysis was used to analyze the value of different baseline characteristics as independent predictors of LV ejection fraction (LVEF) 39 pg/ml identified LVEF

Subject(s)
Heart Failure/diagnosis , Myocardial Infarction/complications , Natriuretic Peptide, Brain/blood , Ventricular Dysfunction, Left/diagnosis , Case-Control Studies , Echocardiography , Female , Follow-Up Studies , Heart Failure/blood , Heart Failure/etiology , Humans , Male , Middle Aged , Myocardial Infarction/blood , Myocardial Infarction/diagnostic imaging , Predictive Value of Tests , Prognosis , Prospective Studies , ROC Curve , Sensitivity and Specificity , Ventricular Dysfunction, Left/blood , Ventricular Dysfunction, Left/etiology
4.
Echocardiography ; 24(5): 515-21, 2007 May.
Article in English | MEDLINE | ID: mdl-17456071

ABSTRACT

AIMS: The aim of our study was to evaluate the factors leading to embolization in patients with left atrial thrombi (LAT). With this purpose, we retrospectively analyzed clinical, transthoracic, transesophageal echocardiographic data of patients with LAT in the transesophageal echocardiographic evaluation. METHODS AND RESULTS: One hundred ninety-two patients with LAT not on anticoagulant therapy were divided into two groups according to the presence of prior ischemic stroke. The group with ischemic stroke included more patients with sinus rhythm and less patients with mitral stenosis. They had smaller left atrial diameter, more left atrial appendage spontaneous echo-contrast, higher appendage ejection fraction, and emptying velocity. CONCLUSION: Once the thrombus has been formed, cerebral embolization seems to be higher in patients with relatively preserved appendage ejection fraction and emptying velocity. Presence of atrial appendage spontaneous echo-contrast also favor embolization. Factors leading to embolization seem to differ in some respects from the causes of thrombus formation.


Subject(s)
Atrial Fibrillation/epidemiology , Echocardiography , Intracranial Embolism/diagnostic imaging , Intracranial Embolism/epidemiology , Thrombosis/epidemiology , Adult , Aged , Atrial Fibrillation/complications , Atrial Fibrillation/physiopathology , Atrial Function , Blood Flow Velocity , Brain Ischemia , Case-Control Studies , Echocardiography/methods , Female , Heart Atria/diagnostic imaging , Heart Atria/pathology , Humans , Intracranial Embolism/etiology , Intracranial Embolism/physiopathology , Logistic Models , Male , Middle Aged , Mitral Valve Stenosis/complications , Mitral Valve Stenosis/physiopathology , Predictive Value of Tests , Research Design , Retrospective Studies , Risk Factors , Stroke , Stroke Volume , Thrombosis/etiology , Thrombosis/physiopathology , Turkey
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