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2.
BMJ Open ; 10(12): e044975, 2020 12 29.
Artigo em Inglês | MEDLINE | ID: mdl-33376184

RESUMO

INTRODUCTION: Heart transplantation is the gold standard treatment for selected patients with end-stage heart failure. Although this procedure can improve quality and prolong life expectancy, several of these patients persist with decreased exercise tolerance. Evidence suggests that exercise training can bring multifactorial benefits to heart transplant (HTx) recipients. However, it is unclear that exercise modality should be preferred. Therefore, the aim of this systematic review and network meta-analysis is to compare the efficacy and safety of different training modalities in HTx recipients. METHODS AND ANALYSIS: We will perform a comprehensive literature search in PubMed/MEDLINE, Embase, The Cochrane Library, CINAHL, Scopus, SportDISCUS, Web of Science Core Collection and PEDro from inception until November 2020. Two registries (ClinicalTrials.gov and REBEC) will also be searched for potential results in unpublished studies. There will be no restriction on language, date of publication, publication status or sample size. We will include randomised controlled trials enrolling adult HTx recipients with the presence of at least one exercise training group, which might be compared with another training modality and/or a non-exercise control group for a minimum of 4 weeks of intervention. The primary outcomes will be peak oxygen consumption and occurrence of adverse events. As secondary outcomes, the interaction between pulmonary ventilation, pulmonary perfusion and cardiac output, oxygen uptake efficiency slope, heart rate response, oxygen pulse, peak blood pressure and peak subjective perception of effort. In addition, we will evaluate the 6 min walking distance, health-related quality of life, endothelial function, muscle strength, body fat percentage and lean mass. Risk of bias will be assessed using the Cochrane RoB V.2.0 tool, and we plan to use the Confidence in Network Meta-Analysis tool to assess confidence in the results. All materials (raw data, processed data, statistical code and outputs) will be shared in a public repository. ETHICS AND DISSEMINATION: Given the nature of this study, no ethical approval will be required. We believe that the findings of this study may show which is the most efficacious and safe physical training modality for HTx recipients. The completed systematic review and network meta-analysis will be submitted to a peer-reviewed journal. PROSPERO REGISTRATION NUMBER: CRD42020191192.

3.
BMC Cardiovasc Disord ; 20(1): 496, 2020 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-33234107

RESUMO

BACKGROUND: To evaluate the prognostic value of peak serum lactate and lactate clearance at several time points in cardiogenic shock treated with temporary mechanical circulatory support (MCS) using veno-arterial extracorporeal membrane oxygenation (VA-ECMO) or Impella CP®. METHODS: Serum lactate and clearance were measured before MCS and at 1 h, 6 h, 12 h, and 24 h post-MCS in 43 patients at four tertiary-care centers in Southern Brazil. Prognostic value was assessed by univariable and multivariable analysis and receiver operating characteristic (ROC) curves for 30-day mortality. RESULTS: VA-ECMO was the most common MCS modality (58%). Serum lactate levels at all time points and lactate clearance after 6 h were associated with mortality on unadjusted and adjusted analyses. Lactate levels were higher in non-survivors at 6 h, 12 h, and 24 h after MCS. Serum lactate > 1.55 mmol/L at 24 h was the best single prognostic marker of 30-day mortality [area under the ROC curve = 0.81 (0.67-0.94); positive predictive value = 86%). Failure to improve serum lactate after 24 h was associated with 100% mortality. CONCLUSIONS: Serum lactate was an important prognostic biomarker in cardiogenic shock treated with temporary MCS. Serum lactate and lactate clearance at 24 h were the strongest independent predictors of short-term survival.

5.
BMC Cardiovasc Disord ; 20(1): 200, 2020 04 25.
Artigo em Inglês | MEDLINE | ID: mdl-32334527

RESUMO

BACKGROUND: Exercise intolerance is a common finding in heart failure that generates a vicious cycle in which the individual starts to limit his activities even more due to progressive fatigue. Regular physical exercise can increase the cardiopulmonary exercise capacity of these individuals. A new approach to physical exercise, known as functional training, could improve the oxygen consumption and quality of life of patients with heart failure; however, there is no information about the effect of this modality of exercise in this patient population. This randomized trial will compare the effects of 36 sessions of functional training versus strength training in heart failure patients. METHODS: This randomized parallel-design examiner-blinded clinical trial includes individuals of both sexes aged ≥40 years receiving regular follow-up at a single academic hospital. Subjects will be randomly allocated to an intervention group (for 12-week functional training) or an active comparator group (for 12-week strength training). The primary outcomes will be the difference from baseline to the 3-month time point in peak oxygen consumption on cardiopulmonary exercise testing and quality of life assessed by the Minnesota Living with Heart Failure Questionnaire. Secondary outcome measures will include functionality assessed by the Duke Activity Status Index and gait speed test; peripheral and inspiratory muscular strength, assessed by hand grip and manovacuometry testing, respectively; endothelial function by brachial artery flow-mediated dilation; lean body mass by arm muscle circumference; and participant adherence to the exercise programs classified as a percentage of the prescribed exercise dose. DISCUSSION: The functional training program aims to improve the functional capacity of the individual using exercises that relate to his specific physical activity transferring gains effectively to one's daily life. In this context, we believe that that functional training can increase the cardiopulmonary exercise capacity and quality of life of patients with heart failure. The trial has been recruiting patients since October 2017. TRIAL REGISTRATION: NCT03321682. Registered on October 26, 2017.


Assuntos
Reabilitação Cardíaca/métodos , Aptidão Cardiorrespiratória , Terapia por Exercício , Tolerância ao Exercício , Insuficiência Cardíaca/reabilitação , Qualidade de Vida , Brasil , Feminino , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Ensaios Clínicos Controlados Aleatórios como Assunto , Recuperação de Função Fisiológica , Fatores de Tempo , Resultado do Tratamento
6.
Arq Bras Cardiol ; 112(5): 573-576, 2019 06 06.
Artigo em Inglês, Português | MEDLINE | ID: mdl-31188963

RESUMO

Selected clinically stable patients with heart failure (HF) who require prolonged intravenous inotropic therapy may benefit from its continuity out of the intensive care unit (ICU). We aimed to report on the initial experience and safety of a structured protocol for inotropic therapy in non-intensive care units in 28 consecutive patients hospitalized with HF that were discharged from ICU. The utilization of low to moderate inotropic doses oriented by a safety-focused process of care may reconfigure their role as a transition therapy while awaiting definitive advanced therapies and enable early ICU discharge.


Assuntos
Cardiotônicos/administração & dosagem , Cuidados Críticos/métodos , Dobutamina/administração & dosagem , Insuficiência Cardíaca/tratamento farmacológico , Milrinona/administração & dosagem , Adulto , Idoso , Protocolos Clínicos , Cuidados Críticos/normas , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Alta do Paciente , Estudos Retrospectivos , Resultado do Tratamento
7.
Rev Gaucha Enferm ; 40(spe): e20180344, 2019.
Artigo em Português, Inglês | MEDLINE | ID: mdl-31038607

RESUMO

OBJECTIVE: To report the role of multiprofessional teams in the effective communication and safe care of patients with left ventricular assist device. METHODS: This is an experience report about the use of effective communication for patients with ventricular assist device in a university hospital in southern Brazil. Care based on individualized action and centered on the patients started in 2017. RESULTS: At the institution, the multiprofessional teams attended training sessions and care protocols were established. The patients and caregivers attended systematic educational sessions and home visits were made to arrange patient discharge and urgency plans. Also, the hospital teams located near the patients' homes received basic training. CONCLUSION: Effective communication between multiprofessional teams, patients, and their families when planning care plays a pivotal role in the early identification of possible complications and their prevention, resulting in a greater survival rate and a better quality of life.


Assuntos
Coração Auxiliar , Comunicação Interdisciplinar , Assistência Ambulatorial , Brasil , Cuidadores/educação , Feminino , Pessoal de Saúde/educação , Insuficiência Cardíaca/enfermagem , Insuficiência Cardíaca/psicologia , Insuficiência Cardíaca/terapia , Hospitais Universitários , Visita Domiciliar , Humanos , Relações Interprofissionais , Masculino , Pessoa de Meia-Idade , Alta do Paciente , Educação de Pacientes como Assunto , Assistência Centrada no Paciente , Relações Profissional-Família , Relações Profissional-Paciente , Qualidade de Vida
8.
Arq. bras. cardiol ; 112(5): 573-576, May 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1038537

RESUMO

Abstract Selected clinically stable patients with heart failure (HF) who require prolonged intravenous inotropic therapy may benefit from its continuity out of the intensive care unit (ICU). We aimed to report on the initial experience and safety of a structured protocol for inotropic therapy in non-intensive care units in 28 consecutive patients hospitalized with HF that were discharged from ICU. The utilization of low to moderate inotropic doses oriented by a safety-focused process of care may reconfigure their role as a transition therapy while awaiting definitive advanced therapies and enable early ICU discharge.


Resumo Pacientes selecionados com insuficiência cardíaca (IC), clinicamente estáveis que necessitam de terapia inotrópica intravenosa prolongada podem se beneficiar de sua continuidade fora da unidade de terapia intensiva (UTI). Nosso objetivo foi relatar a experiência inicial e a segurança de um protocolo estruturado para terapia inotrópica em unidades de terapia não-intensiva em 28 pacientes consecutivos hospitalizados com IC que receberam alta da UTI. A utilização de doses inotrópicas baixas a moderadas, orientadas por um processo de cuidado focado na segurança, pode reconfigurar seu papel como terapia de transição enquanto aguarda terapias avançadas definitivas e permite a alta precoce da UTI.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Cardiotônicos/administração & dosagem , Milrinona/administração & dosagem , Cuidados Críticos/métodos , Dobutamina/administração & dosagem , Insuficiência Cardíaca/tratamento farmacológico , Alta do Paciente , Protocolos Clínicos , Estudos Retrospectivos , Seguimentos , Resultado do Tratamento , Cuidados Críticos/normas
9.
Arq Bras Cardiol ; 111(3): 436-539, 2018 09.
Artigo em Português | MEDLINE | ID: mdl-30379264
11.
Rev. Soc. Cardiol. Estado de Säo Paulo ; 28(1)jan.-mar. 2018. ilus
Artigo em Português | LILACS | ID: biblio-906716

RESUMO

Conhecer a fisiopatologia da insuficiência cardíaca propiciou uma evolução terapêutica em seu manejo, que se traduziu em melhora de desfechos clínicos relevantes, incluindo redução da mortalidade. O conceito do remodelamento ventricular, associado à ativação neuro-humoral descrita inicialmente, via ativação do sistema renina-angiotensina-aldosterona, e posteriormente via ativação simpática, levou ao uso de inibidores da ECA e de betabloqueadores, respectivamente, que mudaram o curso da história da insuficiência cardíaca. Ainda na categoria farmacológica, mais recentemente a modulação da rota da neprilisina, através do uso do composto sacubitril/valsartan, trouxe impacto adicional de redução de mortalidade em pacientes com insuficiência cardíaca. Por fim, dispositivos que também interfiram no processo de remodelamento ventricular, como marcapassos de ressincronização biventricular, demonstraram benefícios clínicos significativos. Novos alvos moleculares, microRNAs ou moléculas de sinalização intracelular, devem crescer como potenciais áreas de investigação na progressão da doença e, potencialmente, se transformarem em alvos terapêuticos


Knowledge of the pathophysiology of heart failure has led to a therapeutic evolution in its management that has resulted in improved clinical outcomes, including a reduction in mortality. The concept of ventricular remodeling associated with neurohumoral activation, initially described via activation of the renin-angiotensin-aldosterone system and later, via sympathetic activation, led to the use of ACE inhibitors and beta blockers, respectively, altering the course of history of heart failure. Also in the pharmacological category, more recently, modulation of the neprilysin route, through the use of the compound sacubitril/valsartan, brought additional impacts in reducing mortality in patients with heart failure. Finally, devices that also interfere in the process of ventricular remodeling, such as biventricular resynchronization pacemakers, have demonstrated significant clinical benefits. New molecular targets, microRNAs, or intracellular signaling molecules should increase as potential areas of research on disease progression, and could potentially become therapeutic targets


Assuntos
Humanos , Masculino , Feminino , Insuficiência Cardíaca/fisiopatologia , Insuficiência Cardíaca/terapia , Terapêutica/métodos , Pesquisa Médica Translacional/métodos , Bisoprolol/uso terapêutico , Terapia de Ressincronização Cardíaca/métodos , Peptídeos Natriuréticos , Óxido Nítrico/uso terapêutico , Sistema Renina-Angiotensina , Sistema Nervoso Simpático/fisiopatologia , Valsartana/uso terapêutico
12.
Arq. bras. cardiol ; 106(6): 491-501, tab, graf
Artigo em Inglês | LILACS | ID: lil-787320

RESUMO

Abstract Background: Spirituality may influence how patients cope with their illness. Objectives: We assessed whether spirituality may influence adherence to management of outpatients with heart failure. Methods: Cross sectional study enrolling consecutive ambulatory heart failure patients in whom adherence to multidisciplinary treatment was evaluated. Patients were assessed for quality of life, depression, religiosity and spirituality utilizing validated questionnaires. Correlations between adherence and psychosocial variables of interest were obtained. Logistic regression models explored independent predictors of adherence. Results: One hundred and thirty patients (age 60 ± 13 years; 67% male) were interviewed. Adequate adherence score was observed in 38.5% of the patients. Neither depression nor religiosity was correlated to adherence, when assessed separately. Interestingly, spirituality, when assessed by both total score sum (r = 0.26; p = 0.003) and by all specific domains, was positively correlated to adherence. Finally, the combination of spirituality, religiosity and personal beliefs was an independent predictor of adherence when adjusted for demographics, clinical characteristics and psychosocial instruments. Conclusion: Spirituality, religiosity and personal beliefs were the only variables consistently associated with compliance to medication in a cohort of outpatients with heart failure. Our data suggest that adequately addressing these aspects on patient’s care may lead to an improvement in adherence patterns in the complex heart failure management.


Resumo Fundamento: A espiritualidade pode influenciar a maneira com que os pacientes lidam com sua doença. Objetivos: Avaliamos a possibilidade de a espiritualidade influenciar a adesão ao tratamento de pacientes ambulatoriais com insuficiência cardíaca. Métodos: Estudo transversal com pacientes ambulatoriais com insuficiência cardíaca, cuja adesão ao tratamento multidisciplinar foi avaliada. Os pacientes foram avaliados sobre qualidade de vida, depressão, religiosidade e espiritualidade, utilizando questionários validados. Foram obtidas correlações entre adesão e variáveis psicossociais de interesse. Modelos de regressão logística exploraram preditores independentes de adesão. Resultados: Cento e trinta pacientes (idade 60 ± 13 anos; 67% masculinos) foram entrevistados. Observou-se adequado escore de adesão em 38,5% dos pacientes. Nem a depressão ou a religiosidade foram correlacionados à adesão, quando avaliados separadamente. É interessante notar que quando a espiritualidade foi avaliada por ambos, o somatório total de score (r = 0,26; p = 0,003) e os domínios específicos, ela estava positivamente correlacionada à adesão. Por fim, a combinação de espiritualidade, religiosidade e crenças pessoais mostrou-se um preditor independente de adesão quando ajustado às características demográficas, clínicas e a instrumentos psicossociais. Conclusão: Espiritualidade, religiosidade e crenças pessoais foram as únicas variáveis consistentemente associadas à adesão em relação à medicação em uma coorte de pacientes ambulatoriais com insuficiência cardíaca. Nossos dados sugerem que abordar adequadamente esses aspectos no cuidado com o paciente pode auxiliar a melhorar o padrão de adesão no complexo tratamento da insuficiência cardíaca.


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Pacientes Ambulatoriais , Espiritualidade , Adesão à Medicação/psicologia , Insuficiência Cardíaca/psicologia , Psicometria/métodos , Qualidade de Vida/psicologia , Religião , Autoimagem , Modelos Logísticos , Estudos Transversais , Cooperação do Paciente/psicologia , Depressão/psicologia , Insuficiência Cardíaca/terapia
13.
Arq Bras Cardiol ; 106(6): 491-501, 2016 Jun.
Artigo em Inglês, Português | MEDLINE | ID: mdl-27192385

RESUMO

BACKGROUND: Spirituality may influence how patients cope with their illness. OBJECTIVES: We assessed whether spirituality may influence adherence to management of outpatients with heart failure. METHODS: Cross sectional study enrolling consecutive ambulatory heart failure patients in whom adherence to multidisciplinary treatment was evaluated. Patients were assessed for quality of life, depression, religiosity and spirituality utilizing validated questionnaires. Correlations between adherence and psychosocial variables of interest were obtained. Logistic regression models explored independent predictors of adherence. RESULTS: One hundred and thirty patients (age 60 ± 13 years; 67% male) were interviewed. Adequate adherence score was observed in 38.5% of the patients. Neither depression nor religiosity was correlated to adherence, when assessed separately. Interestingly, spirituality, when assessed by both total score sum (r = 0.26; p = 0.003) and by all specific domains, was positively correlated to adherence. Finally, the combination of spirituality, religiosity and personal beliefs was an independent predictor of adherence when adjusted for demographics, clinical characteristics and psychosocial instruments. CONCLUSION: Spirituality, religiosity and personal beliefs were the only variables consistently associated with compliance to medication in a cohort of outpatients with heart failure. Our data suggest that adequately addressing these aspects on patient's care may lead to an improvement in adherence patterns in the complex heart failure management.


Assuntos
Insuficiência Cardíaca/psicologia , Adesão à Medicação/psicologia , Pacientes Ambulatoriais , Espiritualidade , Idoso , Estudos Transversais , Depressão/psicologia , Feminino , Insuficiência Cardíaca/terapia , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Cooperação do Paciente/psicologia , Psicometria/métodos , Qualidade de Vida/psicologia , Religião , Autoimagem
14.
Arq. bras. cardiol ; 101(5): 434-441, nov. 2013. ilus, tab
Artigo em Português | LILACS | ID: lil-696882

RESUMO

FUNDAMENTO: A maioria dos estudos relatando o paradoxo da obesidade utiliza índice de massa corporal (IMC) para classificar obesidade. Dados avaliando o valor prognóstico de outras medidas indiretas de composição corporal são pouco explorados na insuficiência cardíaca (IC). OBJETIVO: Avaliar a associação entre IMC e outras medidas de composição corporal indiretas com risco de morte por todas as causas na IC. MÉTODOS: Parâmetros antropométricos de composição corporal foram avaliados em 344 pacientes ambulatoriais com fração de ejeção do ventrículo esquerdo (FEVE) < 50%, de uma coorte prospectiva seguida durante 30 ± 8,2 meses. A sobrevida foi avaliada por curvas de Kaplan-Meier e análise de regressão de risco proporcional de Cox. RESULTADOS: Os pacientes eram predominantemente do sexo masculino, de etiologia não-isquêmica e com disfunção sistólica do VE moderada a grave (FEVE média de 32 ± 9%). Prega cutânea tricipital (PCT) foi o único parâmetro antropométrico associado com prognóstico, com valores significativamente menores nos pacientes que morreram (p = 0,047). Uma PCT > 20 mm estava presente em 9% dos pacientes que morreram e em 22% dos vivos (p = 0,027). Na análise univariada, creatinina sérica, FEVE e classe funcional foram associadas ao risco de morte. Na regressão de Cox, PCT > 20 mm foi o preditor independente mais forte de mortalidade por qualquer causa (hazard ratio: 0,36; IC 95%: 0,13-0,97; p = 0,03). CONCLUSÃO: Embora IMC seja o parâmetro antropométrico mais utilizado na prática clínica, nossos resultados sugerem que PCT pode ser um melhor preditor de mortalidade em pacientes ambulatoriais com IC.


BACKGROUND: Most reports regarding the obesity paradox have focused on body mass index (BMI) to classify obesity and the prognostic values of other indirect measurements of body composition remain poorly examined in heart failure (HF). Objective: To evaluate the association between BMI and other indirect, but easily accessible, body composition measurements associated with the risk of all-cause mortality in HF. METHODS: Anthropometric parameters of body composition were assessed in 344 outpatients with a left ventricular ejection fraction (LVEF) of <50% from a prospective HF cohort that was followed-up for 30 ± 8.2 months. Survival was evaluated using the Kaplan-Meier method and Cox proportional hazard regression analysis. RESULTS: HF patients were predominantly male, of non-ischemic etiology, and had moderate to severe LV systolic dysfunction (mean LVEF = 32 ± 9%). Triceps skinfold (TSF) was the only anthropometric index that was associated with HF prognosis and had significantly lower values in patients who died (p = 0.047). A TSF > 20 mm was present in 9% of patients that died and 22% of those who survived (p = 0.027). Univariate analysis showed that serum creatinine level, LVEF, and NYHA class were associated with the risk of death, while Cox proportional hazard regression analysis showed that TSF > 20 was a strong independent predictor of all-cause mortality (hazard ratio = 0.36; 95% confidence interval = 0.13-0.97, p = 0.03). CONCLUSION: Although BMI is the most widely used anthropometric parameter in clinical practice, our results suggested that TSF is a better predictive marker of mortality in HF outpatients.


Assuntos
Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Índice de Massa Corporal , Insuficiência Cardíaca/diagnóstico , Músculo Esquelético , Obesidade/complicações , Pregas Cutâneas , Braço , Composição Corporal , Insuficiência Cardíaca/sangue , Estimativa de Kaplan-Meier , Pacientes Ambulatoriais , Valor Preditivo dos Testes , Prognóstico , Modelos de Riscos Proporcionais , Estudos Prospectivos , Fatores de Risco , Disfunção Ventricular Esquerda/etiologia
15.
Arq Bras Cardiol ; 101(5): 434-41, 2013 Nov.
Artigo em Inglês, Português | MEDLINE | ID: mdl-24029960

RESUMO

BACKGROUND: Most reports regarding the obesity paradox have focused on body mass index (BMI) to classify obesity and the prognostic values of other indirect measurements of body composition remain poorly examined in heart failure (HF). OBJECTIVE: To evaluate the association between BMI and other indirect, but easily accessible, body composition measurements associated with the risk of all-cause mortality in HF. METHODS: Anthropometric parameters of body composition were assessed in 344 outpatients with a left ventricular ejection fraction (LVEF) of <50% from a prospective HF cohort that was followed-up for 30 ± 8.2 months. Survival was evaluated using the Kaplan-Meier method and Cox proportional hazard regression analysis. RESULTS: HF patients were predominantly male, of non-ischemic etiology, and had moderate to severe LV systolic dysfunction (mean LVEF = 32 ± 9%). Triceps skinfold (TSF) was the only anthropometric index that was associated with HF prognosis and had significantly lower values in patients who died (p = 0.047). A TSF > 20 mm was present in 9% of patients that died and 22% of those who survived (p = 0.027). Univariate analysis showed that serum creatinine level, LVEF, and NYHA class were associated with the risk of death, while Cox proportional hazard regression analysis showed that TSF > 20 was a strong independent predictor of all-cause mortality (hazard ratio = 0.36; 95% confidence interval = 0.13-0.97, p = 0.03). CONCLUSION: Although BMI is the most widely used anthropometric parameter in clinical practice, our results suggested that TSF is a better predictive marker of mortality in HF outpatients.


Assuntos
Índice de Massa Corporal , Insuficiência Cardíaca/diagnóstico , Músculo Esquelético , Obesidade/complicações , Pregas Cutâneas , Idoso , Braço , Composição Corporal , Feminino , Insuficiência Cardíaca/sangue , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Pacientes Ambulatoriais , Valor Preditivo dos Testes , Prognóstico , Modelos de Riscos Proporcionais , Estudos Prospectivos , Fatores de Risco , Disfunção Ventricular Esquerda/etiologia
16.
Artigo em Português | LILACS | ID: lil-691691

RESUMO

Introdução: Diabetes mellitus (DM) é uma condição prevalente na população em geral, que parece aumentar o risco de insuficiência cardíaca (IC). Entretanto, a prevalência de DM tipo 2 em pacientes brasileiros com insuficiência cardíaca não é conhecida, e o impacto do DM no tratamento da IC ainda não está claro.Objetivo: Avaliar a prevalência de DM tipo 2 em pacientes ambulatoriais com insuficiência cardíaca, e sua correlação com características clínicas e com o tratamento da IC.Métodos: Foram incluídos 402 pacientes com IC em acompanhamento ambulatorial entre agosto de 2008 e setembro de 2009. Os pacientes foram comparados com relação às características clínicas, remodelamento cardíaco e tratamento da IC.Resultados: A prevalência de DM tipo 2 na amostra estudada foi de 31%. Os pacientes com DM tinham idade maior (65±10 vs. 60±14 anos; p<0,001) e maior prevalência etiologia isquêmica em comparação aos não diabéticos (52% vs.30%, respectivamente). Os parâmetros ecocardiográficos não diferiram entre os grupos, mas a pressão sistólica da artéria pulmonar (PSAP) foi maior nos pacientes diabéticos (50±14 vs. 43±14 mmHg; p=0,001). O tratamento da insuficiência cardíaca foi similar entre pacientes com e sem DM. Entre os com DM, cerca da metade dos pacientes tinha controle glicêmico adequado, e os principais tratamentos utilizados foram as drogas metformina e insulina.Conclusões: A prevalência de DM foi elevada nesta população de pacientes ambulatoriais com insuficiência cardíaca, sendo associada a etiologia isquêmica e comorbidades. Apesar de não haver associação com outras características degravidade da doença, remodelamento cardíaco ou com o IC, pacientes com DM tinham níveis mais elevados de PSAP. A repercussão clínica e prognóstica destes achados merece ser avaliada em estudos prospectivos futuros.


Background: Diabetes Mellitus (DM) is a prevalent condition in the general population that seems to increase the risk of heart failure development. However the prevalence of DM type 2 among Brazilians patients with HF is unknown and there are still questions regarding the impact of DM in the HF treatment.Aims: To evaluate the prevalence of DM type 2 among outpatients followed for chronic HF and the association with demographic and laboratory characteristics, remodeling and HF treatment.Results: The prevalence of DM type 2 was 31%. Patients with DM were older (65±10 vs. 60±14 years; p<0,001) and with a higher prevalence of ischaemic etiology (52% vs. 30%, respectively) and comorbidities. The echocardiographic parameters were similar in both groups, but pulmonary systolic arterial pressure (PSAP) was higher in diabetic patients (50±14 vs. 43±14 mmHg; p=0,002).Around half of diabetic patients had a good glycemic control, and metformin and insulin were predominantly used for DM control.Conclusions: We found an elevated prevalence of diabetic patients among Brazilians with HF, and DM was associated to ischaemic etiology and comorbidities. Regardless of no association with clinical characteristics, ventricular remodeling or HF treatment, diabetic patients had higher PSAP values. Clinical significance of these findings deserves further prospective studies.


Assuntos
Diabetes Mellitus , Insuficiência Cardíaca , Prevalência
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