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1.
Adv Exp Med Biol ; 1425: 131-139, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37581787

RESUMO

INTRODUCTION: Cardiovascular disease remains a major cause of morbidity and premature mortality worldwide. The aim of the present study was to investigate the association of atherosclerotic cardiovascular disease (ASCVD) risk estimator with depression in women undergoing cardiological evaluation. MATERIAL AND METHOD: Three hundred women undergoing cardiological evaluation completed the Zung Self-Rating Depression Scale (ZSDS) questionnaire which included women's characteristics. RESULTS: A percentage of 57.4% of our participants exhibited ASCVD risk <5%; while the 18.3% had ASCVD risk between 5% and 7.4%, the 18.3% between 7.5% and 20%, and the remaining 6% > 20%. In terms of depression, 50% of the women had a score of less than 38 (median), according to Zung scale and mean score was 38.4. In addition, 25% of women had a score below 32. These scores indicate low levels of depression in women. Statistically significant higher rates of depression were found in women who were not involved with physical activities (p = 0.030). CONCLUSIONS: The negative impact of depression on the ASCVD risk could potentially be prevented by modifying individuals' behavior with regard to their engagement in physical activity.


Assuntos
Aterosclerose , Doenças Cardiovasculares , Humanos , Feminino , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Fatores de Risco , Depressão/epidemiologia , Medição de Risco , Aterosclerose/epidemiologia
3.
Am Heart J ; 155(4): 751.e1-7, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18371487

RESUMO

BACKGROUND: Anemia is a frequent condition in chronic heart failure (CHF) that affects adversely long-term cardiac outcomes. We sought to investigate the effects of recombinant human erythropoietin analogue darbepoetin alpha on left (LV) and right ventricular (RV) function and neurohormonal activation in patients with CHF and anemia. METHODS: Thirty-two CHF patients (New York Heart Association class II-III, LV ejection fraction [EF] <40%, hemoglobin level <12.5 g/dL, serum creatinine level <2.5 mg/dL) were randomized (2:1) to receive either a 3-month darbepoetin alpha regimen at 1.5 microg/kg every 20 days plus oral iron (n = 21) or placebo plus oral iron (n = 11). Echocardiographic indices of LV systolic and diastolic function and RV function, plasma B-type natriuretic peptide (BNP) and 6-minute walked distance were assessed at baseline and posttreatment. RESULTS: Regarding LV function, only treatment with darbepoetin alpha caused a significant improvement in LVEF (F = 22.001, P < .001), end-systolic wall stress (F = 4.934, P = .034), mitral annulus systolic displacement (F = 6.710, P < .015), isovolumic relaxation time (F = 4.909, P = .035), and E/e ratio (F = 7.833, P = .009). The RV systolic pressure (F = 7.715, P = .009) as well as tricuspid annulus systolic displacement and RVEF (F = 9.264, P = .005) were significantly improved only in the darbepoetin alpha group. Darbepoetin alpha had also alpha beneficial effect on New York Heart Association class (F = 14.586, P = .001), plasma BNP (F = 14.781, P = .001), and 6-minute walk test (F = 19.926, P < .001), whereas these parameters did not significantly change in the placebo-treated patients. CONCLUSION: Darbepoetin alpha improves both LV and RV performance and exercise capacity and counteracts neurohormonal activation in CHF patients with anemia. The drug effects on LV diastolic function, RV function, and LV end-systolic wall stress, in particular, are novel findings, with a potential important contribution to patients' symptomatic improvement.


Assuntos
Anemia/tratamento farmacológico , Eritropoetina/análogos & derivados , Insuficiência Cardíaca/fisiopatologia , Hematínicos/uso terapêutico , Função Ventricular Esquerda/efeitos dos fármacos , Função Ventricular Direita/efeitos dos fármacos , Idoso , Anemia/etiologia , Cardiomiopatia Dilatada/complicações , Darbepoetina alfa , Quimioterapia Combinada , Ecocardiografia , Eritropoetina/farmacologia , Eritropoetina/uso terapêutico , Tolerância ao Exercício , Insuficiência Cardíaca/sangue , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/etiologia , Hematínicos/farmacologia , Hemodinâmica , Humanos , Injeções Subcutâneas , Método Simples-Cego
4.
Eur J Heart Fail ; 9(12): 1172-7, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18062901

RESUMO

BACKGROUND: Levosimendan has inotropic and vasodilatory effects. We investigated the effects of levosimendan on coronary flow and associated changes in neurohormonal activation and cardiac performance in patients with advanced heart failure. METHODS: Forty-two patients with NYHA III-IV and a left ventricular ejection fraction (EF) 25+/-6%, were randomised to levosimendan 0.1 microg/kg/min (n=21) or placebo for 24 h. Before and 24 h after each treatment, we assessed: the maximal velocity (Vmax), time integral (VTI) and deceleration time (DT) of the diastolic coronary flow wave (CF) in LAD using transthoracic Doppler echocardiography, pulmonary artery systolic pressure by Doppler echocardiography, E/E' ratio using Doppler imaging of mitral inflow velocity, tissue Doppler imaging of the mitral annulus and B-type natriuretic peptide (BNP) levels. RESULTS: By ANOVA, there was a greater increase in CF-Vmax (43+/-23 vs.25+/-8 cm/s), CF-DT (904+/-250 vs. 667+/-151 ms), and EF and a greater decrease in BNP, pulmonary artery systolic pressure and E/E? after levosimendan than after placebo (p<0.05). Compared to baseline, the percent changes in CF-VTI were related to the concomitant changes in EF, E/E?, and BNP after treatment with levosimendan (r=0.69, r=?0.51 and r=?0.80, p<0.05 respectively). CONCLUSION: Treatment with levosimendan improves coronary flow and microcirculation in parallel with an improvement in cardiac performance and neurohormonal activation in patients with advanced heart failure.


Assuntos
Circulação Coronária/efeitos dos fármacos , Vasos Coronários/fisiopatologia , Insuficiência Cardíaca/tratamento farmacológico , Hidrazonas/administração & dosagem , Piridazinas/administração & dosagem , Fluxo Sanguíneo Regional/efeitos dos fármacos , Vasodilatadores/administração & dosagem , Função Ventricular Esquerda/efeitos dos fármacos , Vasos Coronários/diagnóstico por imagem , Vasos Coronários/efeitos dos fármacos , Relação Dose-Resposta a Droga , Ecocardiografia Doppler , Feminino , Insuficiência Cardíaca/diagnóstico por imagem , Insuficiência Cardíaca/fisiopatologia , Humanos , Infusões Intravenosas , Masculino , Pessoa de Meia-Idade , Simendana , Resultado do Tratamento , Função Ventricular Esquerda/fisiologia
5.
BMJ Open ; 7(1): e013150, 2017 01 19.
Artigo em Inglês | MEDLINE | ID: mdl-28104708

RESUMO

OBJECTIVES: Greece is one of the leading tobacco-producing countries in European Union, and every year over 19 000 Greeks die from tobacco-attributable diseases. The aim of the present study was to provide nationally representative estimates on current and secondhand smoking prevalence in Greece and their determinants. DESIGN: Cross-sectional. SETTING: Greece. PARTICIPANTS: A total of 4359 individuals participated in the Global Adult Tobacco Survey (GATS), a household survey of adults ≥15 years old (overall response rate 69%). They were selected through a multistage geographically clustered sampling design with face-to-face interview. PRIMARY AND SECONDARY OUTCOME MEASURES: In 2013, we investigated the prevalence of current and secondhand smoking and their determinants. Univariate and logistic regression analysis was used in order to identify possible risk factors associated with the prevalence of current and secondhand smoking. RESULTS: The prevalence of current smoking was 38.2% (95% CI 35.7% to 40.8%), and the mean number of cigarettes smoked per day was 19.8. Multivariate analysis confirmed that male gender (OR=3.24; 95% CI 2.62 to 4.00), age groups (25-39, OR=4.49; 95% CI 3.09 to 8.46 and 40-54, OR=3.51; 95% CI 1.88 to 5.87) and high school education (OR=1.97; 95% CI 1.41 to 2.74) were independently associated with the current smoking. Remarkably, responders with primary or less education had the lowest prevalence of current smoking (p<0.001). The prevalence of exposure to secondhand smoke at work, home and restaurants, was 52.3%, 65.7% and 72.2%. In total, 90.0% (95% CI 87.8% to 91.9%) of Greek population is exposed to tobacco smoke (current smoking and secondhand smoke). CONCLUSIONS: Our results revealed an extremely high prevalence of current smoking and exposure to secondhand smoke among the adult population and a positive gradient between education and current smoking. These findings are alarming and implementation of comprehensive tobacco control and prevention strategies could be impactful in fighting the tobacco epidemic in Greece.


Assuntos
Poluição por Fumaça de Tabaco/estatística & dados numéricos , Adolescente , Adulto , Distribuição por Idade , Idoso , Fumar Cigarros/epidemiologia , Estudos Transversais , Feminino , Grécia/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Restaurantes/estatística & dados numéricos , Fatores de Risco , Distribuição por Sexo , Inquéritos e Questionários , Adulto Jovem
6.
Am J Cardiol ; 98(12): 1641-5, 2006 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-17145226

RESUMO

Positive inotropes used for the treatment of heart failure have been arrhythmogenic. Levosimendan is a novel calcium sensitizer with vasodilating properties and a complex mechanism of action. Its effect on ventricular arrhythmias and 24-hour Holter electrocardiographically derived prognostic autonomic nervous system-related markers, because it occurs in parallel with changes in cardiac function and neurohormonal response, has not been systematically assessed. Forty-five patients (mean age 65 +/- 1.3 years) with heart failure refractory to conventional therapy and a mean ejection fraction of 23 +/- 1.2%, randomized to levosimendan or placebo, were studied. After Holter electrocardiographic recording, 1 drug was infused for 24 hours (levosimendan at a dose of 0.1 mug/kg/min). During this period, another Holter recording was performed to assess changes in ventricular arrhythmogenesis, 24-hour heart rate variability indexes, QTc, QT variability, and QT/RR slope. Clinical evaluation, echocardiography, and B-type natriuretic peptide measurements were performed at baseline and after treatment. After levosimendan, clinical and echocardiographic improvement was observed, associated with beneficial neurohormonal modulation (mean B-type natriuretic peptide level after levosimendan 668 +/- 108 vs 1,009 +/- 122 pg/ml at baseline, p <0.05). Episodes of nonsustained ventricular tachycardia increased with levosimendan (21.9 +/- 9.6 vs 3.0 +/- 1.2, p <0.05). Levosimendan and placebo exerted a neutral effect on all autonomic markers assessed. In conclusion, levosimendan at low doses increases nonsustained ventricular arrhythmias, without affecting Holter-derived, prognostically significant autonomic markers. At the same time, it is associated with improvements in cardiac function and neurohormonal response. These findings may have important clinical and prognostic implications.


Assuntos
Antiarrítmicos/uso terapêutico , Arritmias Cardíacas/tratamento farmacológico , Sistema Nervoso Autônomo/fisiopatologia , Cardiomiopatia Dilatada/complicações , Cardiotônicos/uso terapêutico , Insuficiência Cardíaca/complicações , Hidrazonas/uso terapêutico , Piridazinas/uso terapêutico , Vasodilatadores/uso terapêutico , Idoso , Arritmias Cardíacas/complicações , Feminino , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Peptídeo Natriurético Encefálico/metabolismo , Simendana , Volume Sistólico , Disfunção Ventricular Esquerda/fisiopatologia
7.
Am J Cardiol ; 98(11): 1489-92, 2006 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-17126656

RESUMO

Right ventricular (RV) dysfunction frequently complicates advanced left ventricular heart failure and contributes to an unfavorable prognosis. Levosimendan is a novel inodilator that beneficially affects hemodynamics and left ventricular systolic and diastolic function in patients with advanced heart failure. However, its effects on RV function have not yet been properly assessed in these patients. In this randomized trial, the impact of levosimendan or placebo on various echocardiographic parameters of RV systolic and diastolic function was investigated in 54 patients with advanced heart failure due to left ventricular systolic dysfunction. Tissue Doppler imaging maximal systolic tricuspid annular velocity (S wave) increased significantly only in the levosimendan group (8.2 +/- 3.2 vs 9.0 +/- 3.0 cm/s, p <0.03). Tissue Doppler imaging RV early diastolic velocity (E wave) and the ratio of early to late diastolic velocities (E/A) also increased significantly after levosimendan administration (p <0.01 and p <0.05, respectively). Systolic pulmonary arterial pressure decreased significantly (54 +/- 11 vs 43 +/- 11 mm Hg, p <0.01) in the levosimendan-treated patients. Levosimendan beneficially modulated neurohormonal and inflammatory status by decreasing B-type natriuretic peptide levels (p <0.05) and by altering the ratio of interleukin-6 to interleukin-10 in favor of the latter (p <0.05). In conclusion, levosimendan could offer further therapeutic advantages in patients with advanced heart failure by improving systolic and diastolic RV function.


Assuntos
Cardiotônicos/uso terapêutico , Insuficiência Cardíaca/tratamento farmacológico , Hidrazonas/uso terapêutico , Piridazinas/uso terapêutico , Vasodilatadores/uso terapêutico , Função Ventricular Direita/efeitos dos fármacos , Pressão Sanguínea/efeitos dos fármacos , Cardiotônicos/farmacologia , Ecocardiografia , Feminino , Insuficiência Cardíaca/fisiopatologia , Humanos , Hidrazonas/farmacologia , Interleucina-10/sangue , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Peptídeos Natriuréticos/sangue , Artéria Pulmonar/efeitos dos fármacos , Piridazinas/farmacologia , Simendana , Vasodilatadores/farmacologia , Disfunção Ventricular Esquerda/tratamento farmacológico
8.
Artigo em Inglês | MEDLINE | ID: mdl-27213421

RESUMO

Introduction. The purpose of this study was to evaluate the knowledge and perceptions of Greek healthcare professionals about nicotine, nicotine replacement therapies and electronic cigarettes. Methods. An online survey was performed, in which physicians and nurses working in private and public healthcare sectors in Athens-Greece were asked to participate through email invitations. A knowledge score was calculated by scoring the correct answers to specific questions with 1 point. Results. A total of 262 healthcare professionals were included to the analysis. Most had daily contact with smokers in their working environment. About half of them considered that nicotine has an extremely or very important contribution to smoking-related disease. More than 30% considered nicotine replacement therapies equally or more addictive than smoking, 76.7% overestimated their smoking cessation efficacy and only 21.0% would recommend them as long-term smoking substitutes. For electronic cigarettes, 45.0% considered them equally or more addictive than smoking and 24.4% equally or more harmful than tobacco cigarettes. Additionally, 35.5% thought they involve combustion while the majority responded that nicotine in electronic cigarettes is synthetically produced. Only 14.5% knew about the pending European regulation, but 33.2% have recommended them to smokers in the past. Still, more than 40% would not recommend electronic cigarettes to smokers unwilling or unable to quit smoking with currently approved medications. Cardiologists and respiratory physicians, who are responsible for smoking cessation therapy in Greece, were even more reluctant to recommend electronic cigarettes to this subpopulation of smokers compared to all other participants. The knowledge score of the whole study sample was 7.7 (SD: 2.4) out of a maximum score of 16. Higher score was associated with specific physician specialties. Conclusions. Greek healthcare professionals appear to overestimate the adverse effects of nicotine, and many would not recommend any nicotine-containing product as a long-term smoking substitute. Additionally, they have poor knowledge about the function and characteristics of electronic cigarettes.


Assuntos
Sistemas Eletrônicos de Liberação de Nicotina , Pessoal de Saúde , Nicotina , Percepção , Abandono do Hábito de Fumar , Adulto , Sistemas Eletrônicos de Liberação de Nicotina/efeitos adversos , Feminino , Grécia/epidemiologia , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Nicotina/efeitos adversos , Fumar/efeitos adversos , Abandono do Hábito de Fumar/métodos , Inquéritos e Questionários , Tabagismo/epidemiologia , Tabagismo/terapia
9.
Int J Environ Res Public Health ; 9(1): 331-342, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22470295

RESUMO

We conducted the GHPSS (Global Health Professions Student Survey) to obtain information regarding health profession students' smoking habits and perceptions, exposure to secondhand smoke (SHS) as well as level of knowledge and training on tobacco use and smoking cessation counseling. GHPSS is a survey for third-year students in the following fields: health visitors, dentistry, medicine, nursing and/or pharmacy. The highest tobacco use prevalence rate and exposure to SHS were recorded among health visitor students with 46.4% and 33.3% respectively. The majority of the respondents believed that their profession serves as a role model for their patients. Formal training on cessation counseling ranged between 10.7% for health visitor students to 22.4% for nursing students. The relatively high percentage of health profession students who currently smoke and the alarmingly high percentage of those exposed to SHS indicate lack of concerted efforts for implementation and effective enforcement of the anti-tobacco policy measures. Despite its significance, formal training on cessation counseling for students is strikingly low. These results indicate the urgent need to train health professional students on tobacco cessation counseling and educate them on the dangers of tobacco use, SHS and the positively influential role they can play to affect their patients' smoking habits.


Assuntos
Ocupações em Saúde/educação , Nicotiana , Abandono do Hábito de Fumar , Fumar , Estudantes , Poluição por Fumaça de Tabaco , Coleta de Dados , Feminino , Grécia , Humanos , Masculino
10.
Am J Cardiol ; 103(8): 1134-8, 2009 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-19361602

RESUMO

Increased oxidative and nitrosative stress are important mediators of left ventricular (LV) and vascular dysfunction in patients with chronic heart failure (CHF). This study investigated the effects of darbepoetin alfa on plasma markers of oxidative and nitrosative stress in patients with CHF with anemia. Thirty patients with CHF (LV ejection fraction [LVEF] <40%, hemoglobin <12.5 g/dl, and serum creatinine <2.5 mg/dl) were randomly assigned (1:1) to receive either a 3-month darbepoetin alfa regimen at 1.5 microg/kg every 20 days plus oral iron or placebo plus oral iron. Plasma B-type natriuretic peptide (BNP), markers of oxidative (oxidative, malondialdehyde, carbonyl proteins; antioxidative, glutathione) and nitrosative (nitrotyrosine) stress, LVEF, and 6-minute walked distance were assessed at baseline and after treatment. A significant improvement in LVEF and 6-minute walked distance was observed in only darbepoetin-treated patients. Plasma BNP (F = 14.8, p = 001), malondialdehyde (F = 9.4, p = 0.006), protein carbonyl (F = 9.2, p = 0.006), and nitrotyrosine (F = 4.4, p = 0.045) were significantly decreased, along with an increase in antioxidative glutathione (F = 4.2, p = 0.049) after darbepoetin alfa treatment. These factors were unaffected in placebo-treated patients. Darbepoetin-induced percentages of change in carbonyl protein significantly correlated with respective changes in plasma BNP (r = 0.55, p <0.05) and LVEF (r = -0.46, p <0.05). Finally, a drug-induced percentage of decrease in nitrotyrosine significantly correlated with the respective improvement in 6-minute walked distance (r = -0.63, p <0.05). In conclusion, darbepoetin alfa attenuated deleterious effects of oxidative and nitrosative stress into the cardiovascular system of anemic patients with CHF, improving also cardiac function and exercise capacity.


Assuntos
Anemia/metabolismo , Cardiomiopatias/complicações , Eritropoetina/análogos & derivados , Insuficiência Cardíaca/fisiopatologia , Hematínicos/farmacologia , Estresse Oxidativo/efeitos dos fármacos , Idoso , Anemia/sangue , Anemia/fisiopatologia , Doença Crônica , Darbepoetina alfa , Eritropoetina/farmacologia , Tolerância ao Exercício/efeitos dos fármacos , Feminino , Insuficiência Cardíaca/sangue , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/metabolismo , Humanos , Masculino , Pessoa de Meia-Idade , Nitrosação/efeitos dos fármacos
11.
Atherosclerosis ; 199(1): 215-21, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-17991471

RESUMO

Pro-inflammatory cytokine over-expression may be implicated to the pathogenesis of anemia in chronic heart failure (CHF) through the suppression of bone marrow erythropoiesis. Erythropoietin administration has anti-inflammatory and anti-apoptotic properties in experimental CHF models and improves exercise capacity in anemic CHF patients. The present study investigates the effects of recombinant human erythropoietin analogue darbepoetin-alpha on circulating pro-inflammatory cytokines and soluble Fas/soluble Fas ligand system in patients with CHF and anemia. Forty-one CHF patients (NYHA class: II-III; left ventricular (LV) ejection fraction (EF) <40%; hemoglobin <12.5g/dl; serum creatinine <2.5mg/dl) were randomized to receive either 3-month darbepoietin-* at 1.5 microg/kg every 20 days plus iron orally (n=21) or placebo plus iron orally (n=20). LV systolic function, plasma B-type natriuretic peptide (BNP), inflammatory markers (TNF-*, IL-6, CRP), anti-inflammatory cytokine IL-10, endothelial adhesion molecules (soluble ICAM-1 and VCAM-1) and soluble apoptosis mediators (soluble Fas, soluble Fas ligand), and 6-min walking distance were assessed at baseline and 3 months post-treatment. In darbepoetin-* treated patients, plasma BNP (451 (62-2770) from 802 (476-4440) pg/ml, p=0.002), IL-6 (6.5+/-4.7 from 10.5+/-7.8 pg/ml, p=0.013) and soluble Fas ligand (53.2+/-16.6 from 59.2+/-17.9 pg/ml, p=0.023) decreased significantly, while LVEF (32+/-6 from 26+/-6%, p<0.001), hemoglobin (12.8+/-1.4 from 10.9+/-1.0 g/dl, p<0.001) and 6-min walked distance (274+/-97 from 201+/-113m, p<0.01) increased significantly. No significant changes were observed in the placebo arm, except for a worsening in 6-min walked distance (p=0.044). In conclusion, darbepoetin-alpha reduces circulating pro-inflammatory cytokine IL-6 and apoptotic mediator soluble Fas ligand in CHF patients with anemia, with a parallel improvement of cardiac performance and exercise capacity.


Assuntos
Anemia/tratamento farmacológico , Eritropoetina/análogos & derivados , Proteína Ligante Fas/sangue , Insuficiência Cardíaca/complicações , Interleucina-10/sangue , Receptor fas/sangue , Idoso , Anemia/complicações , Biomarcadores/sangue , Proteína C-Reativa/imunologia , Proteína C-Reativa/metabolismo , Doença Crônica , Citocinas/sangue , Citocinas/imunologia , Darbepoetina alfa , Eritropoetina/administração & dosagem , Proteína Ligante Fas/imunologia , Feminino , Hematínicos/administração & dosagem , Humanos , Molécula 1 de Adesão Intercelular/sangue , Molécula 1 de Adesão Intercelular/imunologia , Interleucina-10/imunologia , Interleucina-6/sangue , Interleucina-6/imunologia , Masculino , Pessoa de Meia-Idade , Solubilidade , Resultado do Tratamento , Fator de Necrose Tumoral alfa/sangue , Fator de Necrose Tumoral alfa/imunologia , Molécula 1 de Adesão de Célula Vascular/sangue , Molécula 1 de Adesão de Célula Vascular/imunologia , Receptor fas/imunologia
12.
Eur J Cardiovasc Prev Rehabil ; 15(3): 365-9, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18525396

RESUMO

OBJECTIVE: Anemia is a frequent comorbidity in chronic heart failure (CHF) adversely affecting patients' prognosis. Erythropoietin seems to improve exercise capacity in CHF patients. This study investigates the effects of recombinant human erythropoietin analog darbepoetin-alpha on quality of life and emotional stress, evaluated by relevant questionnaires in patients with CHF and anemia. METHODS: Forty-one CHF patients [New York Heart Association class: II-III; left ventricular (LV) ejection fraction (EF)<40%; hemoglobin<12.5 g/dl; serum creatinine<2.5 mg/dl] were randomized (1:1) to receive either 3-month darbepoietin-alpha at 1.5 microg/Kg every 20 days plus iron orally (n=21) or placebo plus iron orally (n=20). Echocardiographic LVEF, questionnaires addressing quality of life (Kansas City Cardiomyopathy Questionnaire, functional and overall, Duke's Activity Status Index) and emotional stress [Zung self-rating depression scale (SDS), Beck Depression Inventory], as well as plasma b-type natriuretic peptide and 6-min walking distance (6MWT as a marker of exercise capacity) were assessed at baseline and posttreatment. RESULTS: A significant improvement in LVEF (32+/-6 from 26+/-6%, P<0.001), 6MWT (274+/-97 from 201+/-113 m, P<0.01), hemoglobin (12.8+/-1.4 from 10.9+/-1.0 g/dl, P<0.001) and plasma b-type natriuretic peptide (517+/-579 from 829+/-858 pg/ml, P=0.002) was observed posttreatment only in darbepoetin-treated group. Kansas City Cardiomyopathy Questionnaire functional (78+/-14 from 57+/-24%, P<0.01) and overall (68+/-20 from 47+/-22, P<0.001), Duke's Activity Status Index (19+/-11 from 14+/-9, P<0.05), Zung SDS (38+/-10 from 47+/-11, P<0.05) and Beck Depression Inventory (11+/-9 from 16+/-10, P<0.05) scores also improved in darbepoetin-treated patients, whereas they remain unchanged in the placebo group except for the Zung SDS which worsened (P<0.05). A significant correlation between drug-induced percent changes in 6MWT and Zung SDS (r=-0.627, P<0.05) was also observed. CONCLUSIONS: Darbepoetin-alpha improves quality of life and emotional stress in CHF patients with anemia, with a parallel increase in exercise capacity.


Assuntos
Anemia/psicologia , Eritropoetina/análogos & derivados , Insuficiência Cardíaca/psicologia , Hematínicos/uso terapêutico , Qualidade de Vida , Estresse Psicológico/prevenção & controle , Idoso , Anemia/tratamento farmacológico , Anemia/etiologia , Estudos de Coortes , Darbepoetina alfa , Esquema de Medicação , Eritropoetina/uso terapêutico , Tolerância ao Exercício , Feminino , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Método Simples-Cego , Estresse Psicológico/etiologia , Estresse Psicológico/fisiopatologia , Inquéritos e Questionários
13.
Eur Heart J ; 27(17): 2062-8, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16891381

RESUMO

AIMS: Left atrial (LA) stunning, the transient impairment of LA function, is responsible for an increased thrombo-embolic risk after cardioversion of atrial fibrillation (AF). Angiotensin receptor blockers (ARBs) attenuate atrial remodelling in AF and could theoretically influence LA stunning. We studied the effect of Irbesartan on LA stunning. METHODS AND RESULTS: We prospectively assigned 50 patients from the outpatient clinic undergoing electrical cardioversion for AF with duration of >4 weeks, into two matched groups: 25 patients were treated with Irbesartan (228+/-93 mg/day) for at least 2 weeks prior to cardioversion (Irbesartan group); 25 patients did not receive ARBs (control group). The groups did not differ concerning age (64+/-13 vs. 63+/-13 years, respectively), AF duration (20+/-18 vs. 20+/-19 weeks), underlying disease, LA diameter (46+/-7 vs. 47+/-9 mm), left ventricular dimensions, and ejection fraction (47.7+/-11.6 vs. 49.7+/-14.5%). We assessed LA appendage emptying velocities (LAAEV) and LA spontaneous echo contrast (LASEC) by transoesophageal echocardiography before and after cardioversion and at 2 weeks, and the A-wave by transthoracic echocardiography after cardioversion, at 2 and at 4 weeks. LA stunning was significantly attenuated in the Irbesartan group. The reduction of LAAEV immediately after cardioversion was significantly less in the Irbesartan group (LAAEV reduction of 9+/-49% from 28+/-9 cm/s before cardioversion to 25+/-13 cm/s immediately afterwards) than in the control group (reduction of 48+/-20% from 34+/-15 cm/s before cardioversion to 16+/-6 cm/s afterwards) (P = 0.048). New or increased LASEC occurred in eight patients (32%) in the Irbesartan vs. 16 patients (64%) in the control group (P = 0.046). CONCLUSION: Irbesartan significantly attenuates LA stunning after electrical cardioversion of AF. Therefore, ARBs may represent an important pharmacological supplementation in patients being prepared for cardioversion.


Assuntos
Bloqueadores do Receptor Tipo 1 de Angiotensina II/uso terapêutico , Fibrilação Atrial/terapia , Função do Átrio Esquerdo , Compostos de Bifenilo/uso terapêutico , Cardioversão Elétrica , Tetrazóis/uso terapêutico , Adulto , Idoso , Fibrilação Atrial/fisiopatologia , Função do Átrio Esquerdo/fisiologia , Estudos de Casos e Controles , Ecocardiografia , Feminino , Humanos , Irbesartana , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
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