Influence of eplerenone on the brain natriuretic peptide dynamics and long-term prognosis of patients with myocardial infarction of the right ventricle

Author(s):  
T. A. Lozova ◽  
2005 ◽  
Vol 15 (4) ◽  
pp. 396-401 ◽  
Author(s):  
Thomas S. Mir ◽  
Jan Falkenberg ◽  
Bernd Friedrich ◽  
Urda Gottschalk ◽  
Throng Phi Lê ◽  
...  

Objective:To evaluate the role of the concentration of brain natriuretic peptide in the plasma, and its correlation with haemodynamic right ventricular parameters, in children with overload of the right ventricle due to congenital cardiac disease.Methods:We studied 31 children, with a mean age of 4.8 years, with volume or pressure overload of the right ventricle caused by congenital cardiac disease. Of the patients, 19 had undergone surgical biventricular correction of tetralogy of Fallot, 11 with pulmonary stenosis and 8 with pulmonary atresia, and 12 patients were studied prior to operations, 7 with atrial septal defects and 5 with anomalous pulmonary venous connections. We measured brain natriuretic peptide using Triage®, from Biosite, United States of America. We determined end-diastolic pressures of the right ventricle, and the peak ratio of right to left ventricular pressures, by cardiac catheterization and correlated them with concentrations of brain natriuretic peptide in the plasma.Results:The mean concentrations of brain natriuretic peptide were 87.7, with a range from 5 to 316, picograms per millilitre. Mean end-diastolic pressure in the right ventricle was 5.6, with a range from 2 to 10, millimetres of mercury, and the mean ratio of right to left ventricular pressure was 0.56, with a range from 0.24 to 1.03. There was a positive correlation between the concentrations of brain natriuretic peptide and the ratio of right to left ventricular pressure (r equal to 0.7844, p less than 0.0001) in all patients. These positive correlations remained when the children with tetralogy of Fallot, and those with atrial septal defects or anomalous pulmonary venous connection, were analysed as separate groups. We also found a weak correlation was shown between end-diastolic right ventricular pressure and concentrations of brain natriuretic peptide in the plasma (r equal to 0.5947, p equal to 0.0004).Conclusion:There is a significant correlation between right ventricular haemodynamic parameters and concentrations of brain natriuretic peptide in the plasma of children with right ventricular overload due to different types of congenital cardiac disease. The monitoring of brain natriuretic peptide may provide a non-invasive and safe quantitative follow up of the right ventricular pressure and volume overload in these patients.


2020 ◽  
Vol 48 (2) ◽  
pp. 143-149
Author(s):  
Abirami Kumaresan ◽  
Alexander D Shapeton ◽  
Hong-mei Yuan ◽  
Philip E Hess

Transthoracic echocardiographic evaluation of the right ventricle is more difficult than the left ventricle and has not been well characterised in the parturient during delivery. As a preliminary investigation, our goal was to use bedside transthoracic echocardiography to evaluate right ventricular myocardial function before and after caesarean delivery. Term parturients undergoing caesarean delivery under spinal anaesthesia were enrolled. Echocardiography was performed pre- and postoperatively. Assessment of myocardial function included longitudinal myocardial strain using 2D-speckle tracking for both ventricles, and fractional area change for the right ventricle. Troponin-T, creatine kinase-muscle/brain and brain natriuretic peptide were measured pre- and postoperatively. One hundred patients were enrolled; 98 completed the study. Adequate images from both timepoints (pre- and postoperatively) were obtained in 85 patients for left ventricle assessment, and 66 for the right ventricle. Right ventricular fractional area change (mean (standard deviation)) (24.9% (8.9%) to 24.9% (9.2%); P = 0.99) and strain (−19.7% (6.8%) to −18.1% (6.5%); P = 0.08) measurements suggested mild baseline dysfunction and did not change after delivery. Left ventricular strain values were normal and unchanged after delivery (−23.8% (7.4%) to −24.3% (6.7%); P = 0.51). One patient had elevated troponin-T and demonstrated worse biventricular function. Elevation of brain natriuretic peptide ( n=7) was associated with mildly decreased left ventricular strain, but creatine kinase-muscle/brain ( n=4) was not associated with consistent changes in cardiac function. Further investigations into peripartum right ventricular function are required to validate the findings in this preliminary study. Findings of baseline mild right ventricular dysfunction and functional changes associated with troponin-T and brain natriuretic peptide warrant rigorous investigation.


1998 ◽  
Vol 94 (2) ◽  
pp. 135-139 ◽  
Author(s):  
Yuji Yoshitomi ◽  
Toshio Nishikimi ◽  
Shunichi Kojima ◽  
Morio Kuramochi ◽  
Shuichi Takishita ◽  
...  

1. Adrenomedullin, a newly identified vasorelaxant peptide, participates in the regulation of the cardiovascular system. To investigate the pathophysiological significance of adrenomedullin in patients with acute myocardial infarction, we measured plasma levels of adrenomedullin. 2. Cardiac catheterization was performed on admission, after 1 day, and after 4 weeks in 36 patients with acute myocardial infarction. We measured plasma levels of adrenomedullin, atrial natriuretic peptide and brain natriuretic peptide in the right atrium, pulmonary artery and aorta. 3. Plasma levels of adrenomedullin in the right atrium (mean ± SEM) were significantly increased on admission (4.2 ± 2.6 h) in patients with acute myocardial infarction (10.6 ± 1.0 pmol/l) compared with controls (5.2 ± 0.3 pmol/l, P < 0.01). In addition, plasma levels of adrenomedullin were further elevated in patients with congestive heart failure (12.3 ± 1.4 pmol/l) compared with patients without congestive heart failure (7.8 ± 0.6 pmol/l, P < 0.01). In patients with congestive heart failure, plasma adrenomedullin on admission significantly correlated with atrial natriuretic peptide and brain natriuretic peptide. 4. These results suggest that plasma adrenomedullin increases in the early phase of acute myocardial infarction and that volume expansion may be one of the additional stimuli for the release of adrenomedullin in patients with acute myocardial infarction complicated by congestive heart failure.


2018 ◽  
Vol 37 (4) ◽  
pp. 406-414 ◽  
Author(s):  
Jelena Stefanović Nešković ◽  
Anđelka Ristić ◽  
Milan Petronijević ◽  
Aleksandra Zeljković ◽  
Aleksandra Grdinić ◽  
...  

SummaryBackground:Systemic sclerosis (SSc) is an autoimmune connective tissue disease which affects various tissues and organs, including skin, lungs, kidneys, gastrointestinal tract and cardiovascular system. Cardiac involvement is the most commonly recognized problem and a significant cause of morbidity. The brain natriuretic peptide (BNP) is a previously known marker of elevated cardiovascular risk in SSc, but the levels of BNP in various forms of SSc have not been investigated so far.Aim:The aim of our study was to evaluate the influence of SSc on the function of the right ventricle and the right atrium using the echocardiographic parameters. Moreover, we examined the levels of BNP in different forms of SSc as well as the association of disease severity with the plasma concentrations of BNP.Methods:We included 42 patients with newly diagnosed SSc and patients whose disease had been diagnosed earlier. SSc patients and non-SSc control patients were examined by using echocardiography and the concentrations of BNP were determined.Results:We analyzed differences in the parameters of right ventricle (RV) function and right atrium (RA) function between SSc patients and healthy controls. The two groups had similar distribution of gender, but SSc patients were significantly older than controls. RV wall thickness was increased in SSc patients (p<0.001), while right ventricular end-systolic area (RVESA; p=0.408) and right ventricular end-diastolic area (RVEDA; p=0.368) did not differ among the examinees. In contrast, RA minor-axis dimension (p=0.001) and the tricuspid annular plane systolic excursion (TAPSE) (p=0.001) were significantly higher in SSc patients. Also, we analyzed differences in brain natriuretic peptide (BNP) concentrations between diffuse cutaneous systemic sclerosis (DSSc) and limited cutaneous systemic sclerosis (LSSc) patients. DSSc patients had significantly higher concentrations of BNP. We found that levels of BNP were in significant positive correlations with age (p=0.007), disease duration (p=0.023), C reactive protein (CRP) (p=0.032), right ventricle fractional area change (FAC) (p=0.022), pulmonary vascular resistance (PVR) and Rodnan score (p=0.019).Conclusions:Given the obtained results, the laboratory determination of BNP could be useful in differentiating different forms of systemic sclerosis as well as in predicting the severity of the disease and future cardiovascular complications.


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