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1.
Biomark Med ; 12(11): 1261-1270, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30450925

RESUMO

AIM: We investigated if the baseline value of mid-regional pro-atrial natriuretic peptide (NP), N-terminal pro-B-type NP and copeptin may be helpful in optimizing ß-blocker uptitration in elderly patients with heart failure. PATIENTS & METHODS: According to the biomarkers' levels, 457 patients were divided into three subgroups and compared with each other at baseline and 3 months after. RESULTS: All mid-regional pro-atrial NP and N-terminal pro-B-type NP subgroups had significant amelioration of left ventricle ejection fraction and New York Heart Association (NYHA) class after 3 months of ß-blocker uptitration (p < 0.001). More prominent improvement of left ventricle ejection fraction and New York Heart Association class was observed in subgroups with lower versus higher NPs levels. CONCLUSION: NPs levels, unlike copeptin levels, might be useful tool for objective selection of elderly heart failure patients who could have the greatest benefit of forced uptitration.


Assuntos
Antagonistas Adrenérgicos beta/administração & dosagem , Glicopeptídeos/sangue , Insuficiência Cardíaca , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Volume Sistólico , Função Ventricular Esquerda , Idoso , Biomarcadores/sangue , Método Duplo-Cego , Feminino , Insuficiência Cardíaca/sangue , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino
2.
Biomark Med ; 9(7): 651-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26174839

RESUMO

AIM: To elucidate the prognostic role of procalcitonin (PCT) in patients with acute decompensated heart failure (ADHF) without clinical signs of infection at admission. MATERIALS & METHODS: Serial measurements of PCT and NT-proBNP were performed in 168 patients, aged 68 ± 10 years with ADHF followed by 3-month outcome evaluation. RESULTS: Cox regression analysis demonstrated significant predictive value of baseline PCT for all-cause death/hospitalization (area under the curve: 0.67; p = 0.013) at 90th day. The patients with persistently elevated PCT or with an increase during the first 72 h of hospitalization had the worst prognosis (p = 0.0002). CONCLUSION: Baseline and serial in-hospital measurements of PCT have significant prognostic properties for 3-month all-cause mortality/hospitalization in patients with ADHF without clinical signs of infection at admission.


Assuntos
Calcitonina/análise , Insuficiência Cardíaca/diagnóstico , Precursores de Proteínas/análise , Doença Aguda , Idoso , Área Sob a Curva , Biomarcadores/análise , Peptídeo Relacionado com Gene de Calcitonina , Feminino , Insuficiência Cardíaca/mortalidade , Hospitalização , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico/análise , Fragmentos de Peptídeos/análise , Prognóstico , Modelos de Riscos Proporcionais , Curva ROC
3.
Eur J Heart Fail ; 16(8): 907-14, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24935020

RESUMO

AIMS: Beta-blockers (BBs) improve outcomes in heart failure. Results from the Cardiac Insufficiency Bisoprolol Study in Elderly (CIBIS-ELD) trial previously demonstrated the feasibility of heart rate, not maximum dose, as a treatment goal. In this pre-specified analysis, we investigated the prognostic value of achieved heart rate after BB optimization on long-term mortality. METHODS AND RESULTS: Elderly heart failure patients from the CIBIS-ELD trial were invited to participate in a follow-up examination 4 years after the initial 12-week BB up-titration period. The relationship between all-cause mortality, BB dose, and heart rate after titration and potentially confounding clinical variables was analysed by multivariable Cox regression. In total, 728 patients (38% women; mean age 72.9 ± 5.4 years) were included. During a mean follow-up period of 45 ± 9 months, 134 patients (19%) died, thus accumulating 2268 patient-years at risk. There was no significant difference in baseline heart rate for survivors and non-survivors (P = 0.19). In models adjusting for age, sex, BB pre-treatment, ventricular function, heart rate, and NYHA class at baseline, a heart rate increase by 10 b.p.m. following up-titration was associated with a subsequent mortality hazard ratio of 1.19 (95% confidence interval 1.02-1.38, P = 0.023). The heart rate range with the lowest mortality and the fewest treatment-related adverse events was 55-64 b.p.m. The achieved BB dose was not associated with mortality risk. CONCLUSION: The heart rate after up-titration, but not BB dose, predicted all-cause mortality risk in elderly patients with chronic heart failure. These patients should be titrated to resting heart rates between 55 and 64 b.p.m.


Assuntos
Antagonistas Adrenérgicos beta/uso terapêutico , Insuficiência Cardíaca/tratamento farmacológico , Frequência Cardíaca , Mortalidade , Idoso , Idoso de 80 Anos ou mais , Bisoprolol/uso terapêutico , Carbazóis/uso terapêutico , Carvedilol , Doença Crônica , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , Prognóstico , Propanolaminas/uso terapêutico , Modelos de Riscos Proporcionais , Resultado do Tratamento
4.
Clin Biochem ; 45(1-2): 117-22, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22155435

RESUMO

BACKGROUND: We sought to investigate the effect of beta-blocker (BB) up-titration on serum levels of NT-proBNP and copeptin in patients with heart failure (HF) with reduced (HFREF) or preserved ejection fraction (HFPEF). METHODS: Serial measurements of NT-proBNP and copeptin were obtained after initiation of BB up-titration in 219 elderly patients with HFREF or HFPEF. RESULTS: After initial increasing trend of NT-proBNP at 6 weeks in HFREF patients, there was a subsequent decrease at 12 weeks of BB treatment up-titration (p=0.003), while no difference was found compared to baseline levels. In contrast to NT-proBNP, there was a continuous decreasing trend of copeptin in HFREF patients (at 12 weeks: p=0.026). In HFPEF patients, NT-proBNP significantly decreased (p=0.043) compared to copeptin after 12 weeks of BB up-titration. CONCLUSIONS: After 12 weeks of BB optimization copeptin might reflect successful up-titration faster than NT-proBNP in HFREF, while the opposite was found in patients with HFPEF.


Assuntos
Glicopeptídeos/biossíntese , Insuficiência Cardíaca/metabolismo , Peptídeo Natriurético Encefálico/biossíntese , Fragmentos de Peptídeos/biossíntese , Antagonistas Adrenérgicos beta/farmacologia , Idoso , Área Sob a Curva , Biomarcadores/metabolismo , Método Duplo-Cego , Ecocardiografia/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Curva ROC , Reprodutibilidade dos Testes , Regulação para Cima
5.
ScientificWorldJournal ; 9: 509-21, 2009 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-19578708

RESUMO

A group of 72 patients with 111 asymptomatic carotid stenoses (ACS), mean age 65.42 +/- 9.21, and a group of 36 patients with 58 symptomatic carotid stenoses (SCS), mean age 67.63 +/- 8.79, were analyzed prospectively during a 3-year follow-up period. All patients underwent color duplex scan sonography (CDS), carotid arteriography, computed tomography (CT) scan, and neurological examination. The aim of the study was to analyze the correlation between echo plaque morphology (degree and plaque quality), local hemodynamic plaque characteristics, ischemic CT findings, and onset of new neurological events and deaths. The results analysis showed significantly more ACS in the group of 30-49% stenosis (p < 0.001), but significantly more SCS in the group of 70-89% (p < 0.0001) and > or = 90% stenosis (p < 0.05). Fibrous plaque was more frequent in the ACS group (p < 0.001), while ulcerated and mixed plaques were more frequent in the SCS group (both p < 0.0001). In the SCS group, a significantly higher frequency of increased peak systolic and end diastolic velocities was noted at the beginning and end of the study (both p < 0.01), as well as for contralateral common (CCA) or internal carotid artery (ICA) occlusion (p < 0.05 and p < 0.01, respectively), but reduced carotid blood flow volume (p < 0.05) only at the end of the study. In the ACS group, the best correlation with new neurological events and deaths was shown with positive CT findings, peak systolic flow velocity over 210 cm/sec, end diastolic flow velocity over 110 cm/sec, plaque stenosis > or = 70%, plaque ulceration, mixed plaque (all p < 0.0001); stenosis > or = 50% (p < 0.001); and reduced carotid blood flow volume (p < 0.05).


Assuntos
Artérias Carótidas/patologia , Doenças das Artérias Carótidas/patologia , Estenose das Carótidas/patologia , Hemodinâmica , Idoso , Análise de Variância , Angiografia , Velocidade do Fluxo Sanguíneo , Artérias Carótidas/fisiopatologia , Doenças das Artérias Carótidas/mortalidade , Doenças das Artérias Carótidas/fisiopatologia , Estenose das Carótidas/mortalidade , Estenose das Carótidas/fisiopatologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Exame Neurológico , Estudos Prospectivos , Taxa de Sobrevida , Tomografia Computadorizada por Raios X , Ultrassonografia Doppler em Cores
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