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1.
Arq Bras Cardiol ; 103(1): 19-24, 2014 Jul.
Artigo em Inglês, Português | MEDLINE | ID: mdl-25120081

RESUMO

BACKGROUND: Abdominal obesity is an important cardiovascular risk factor. Therefore, identifying the best method for measuring waist circumference (WC) is a priority. OBJECTIVE: To evaluate the eight methods of measuring WC in patients with acute coronary syndrome (ACS) as a predictor of cardiovascular complications during hospitalization. METHODS: Prospective study of patients with ACS. The measurement of WC was performed by eight known methods: midpoint between the last rib and the iliac crest (1), point of minimum circumference (2); immediately above the iliac crest (3), umbilicus (4), one inch above the umbilicus (5), one centimeter above the umbilicus (6), smallest rib and (7) the point of greatest circumference around the waist (8). Complications included: angina, arrhythmia, heart failure, cardiogenic shock, hypotension, pericarditis and death. Logistic regression tests were used for predictive factors. RESULTS: A total of 55 patients were evaluated. During the hospitalization period, which corresponded on average to seven days, 37 (67%) patients had complications, with the exception of death, which was not observed in any of the cases. Of these complications, the only one that was associated with WC was angina, and with every cm of WC increase, the risk for angina increased from 7.5 to 9.9%, depending on the measurement site. It is noteworthy the fact that there was no difference between the different methods of measuring WC as a predictor of angina. CONCLUSION: The eight methods of measuring WC are also predictors of recurrent angina after acute coronary syndromes.


Assuntos
Síndrome Coronariana Aguda/complicações , Antropometria/métodos , Obesidade Abdominal/complicações , Circunferência da Cintura , Parede Abdominal/anatomia & histologia , Idoso , Angina Pectoris/complicações , Feminino , Insuficiência Cardíaca/complicações , Hospitalização , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
2.
Arq Bras Cardiol ; 102(6): 549-56, 2014 Jun.
Artigo em Inglês, Português | MEDLINE | ID: mdl-25004416

RESUMO

BACKGROUND: The effects of modern therapy on functional recovery after acute myocardial infarction (AMI) are unknown. OBJECTIVES: To evaluate the predictors of systolic functional recovery after anterior wall AMI in patients undergoing modern therapy (reperfusion, aggressive platelet antiaggregant therapy, angiotensin-converting enzyme inhibitors and beta-blockers). METHODS: A total of 94 consecutive patients with AMI with ST-segment elevation were enrolled. Echocardiograms were performed during the in-hospital phase and after 6 months. Systolic dysfunction was defined as ejection fraction value < 50%. RESULTS: In the initial echocardiogram, 64% of patients had systolic dysfunction. Patients with ventricular dysfunction had greater infarct size, assessed by the measurement of total and isoenzyme MB creatine kinase enzymes, than patients without dysfunction. Additionally, 24.5% of patients that initially had systolic dysfunction showed recovery within 6 months after AMI. Patients who recovered ventricular function had smaller infarct sizes, but larger values of ejection fraction and E-wave deceleration time than patients without recovery. At the multivariate analysis, it can be observed that infarct size was the only independent predictor of functional recovery after 6 months of AMI when adjusted for age, gender, ejection fraction and E-wave deceleration time. CONCLUSION: In spite of aggressive treatment, systolic ventricular dysfunction remains a frequent event after the anterior wall myocardial infarction. Additionally, 25% of patients show functional recovery. Finally, infarct size was the only significant predictor of functional recovery after six months of acute myocardial infarction.


Assuntos
Infarto do Miocárdio/fisiopatologia , Infarto do Miocárdio/reabilitação , Recuperação de Função Fisiológica , Sístole/fisiologia , Disfunção Ventricular Esquerda/fisiopatologia , Disfunção Ventricular Esquerda/reabilitação , Idoso , Ecocardiografia , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/patologia , Valores de Referência , Fatores de Risco , Sensibilidade e Especificidade , Estatísticas não Paramétricas , Volume Sistólico/fisiologia , Fatores de Tempo , Resultado do Tratamento
3.
Arq. bras. cardiol ; 103(1): 19-24, 07/2014. tab
Artigo em Inglês | LILACS | ID: lil-718110

RESUMO

Background: Abdominal obesity is an important cardiovascular risk factor. Therefore, identifying the best method for measuring waist circumference (WC) is a priority. Objective: To evaluate the eight methods of measuring WC in patients with acute coronary syndrome (ACS) as a predictor of cardiovascular complications during hospitalization. Methods: Prospective study of patients with ACS. The measurement of WC was performed by eight known methods: midpoint between the last rib and the iliac crest (1), point of minimum circumference (2); immediately above the iliac crest (3), umbilicus (4), one inch above the umbilicus (5), one centimeter above the umbilicus (6), smallest rib and (7) the point of greatest circumference around the waist (8). Complications included: angina, arrhythmia, heart failure, cardiogenic shock, hypotension, pericarditis and death. Logistic regression tests were used for predictive factors. Results: A total of 55 patients were evaluated. During the hospitalization period, which corresponded on average to seven days, 37 (67%) patients had complications, with the exception of death, which was not observed in any of the cases. Of these complications, the only one that was associated with WC was angina, and with every cm of WC increase, the risk for angina increased from 7.5 to 9.9%, depending on the measurement site. It is noteworthy the fact that there was no difference between the different methods of measuring WC as a predictor of angina. Conclusion: The eight methods of measuring WC are also predictors of recurrent angina after acute coronary syndromes. .


Fundamento: A obesidade abdominal é relevante fator de risco cardiovascular. Portanto, a identificação do melhor método para medição da circunferência abdominal (CA) é prioritária. Objetivo: Avaliar os oito métodos de medição da CA, em pacientes com síndrome coronariana aguda, como preditor de complicações cardiovasculares durante o período de internação. Métodos: Estudo prospectivo com pacientes com síndrome coronariana aguda. A medição da CA foi realizada pelos oito métodos conhecidos: ponto médio entre a última costela e a crista ilíaca (1), ponto da circunferência mínima (2); imediatamente acima da crista ilíaca (3), cicatriz umbilical (4), uma polegada acima do umbigo (5), um centímetro acima do umbigo (6), menor costela (7), no ponto de maior circunferência em torno da cintura (8). As complicações observadas foram: angina, arritmia, insuficiência cardíaca, choque cardiogênico, hipotensão, pericardite e óbito. Para os fatores de predição foram utilizados os testes de regressão logística. Resultados: Foram avaliados 55 pacientes. Durante o período de internação, que correspondeu, em média, a sete dias, 37 (67%) pacientes apresentaram complicações, com exceção do óbito, que não foi verificado em nenhum dos casos. Destas complicações, a única que apresentou associação com a CA foi a angina, sendo que a cada centímetro de elevação da CA, o risco de apresentar angina aumentou de 7,5 a 9,9%, conforme o local de medição. É importante destacar que não houve diferença entre os diferentes métodos de medição da CA como preditor de angina. Conclusão: Os oito métodos de medição da ...


Assuntos
Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Síndrome Coronariana Aguda/complicações , Antropometria/métodos , Obesidade Abdominal/complicações , Circunferência da Cintura , Parede Abdominal/anatomia & histologia , Angina Pectoris/complicações , Hospitalização , Insuficiência Cardíaca/complicações , Modelos Logísticos , Estudos Prospectivos , Fatores de Risco
4.
Arq. bras. cardiol ; 102(6): 549-556, 06/2014. tab, graf
Artigo em Inglês | LILACS | ID: lil-712924

RESUMO

Background: The effects of modern therapy on functional recovery after acute myocardial infarction (AMI) are unknown. Objectives: To evaluate the predictors of systolic functional recovery after anterior wall AMI in patients undergoing modern therapy (reperfusion, aggressive platelet antiaggregant therapy, angiotensin-converting enzyme inhibitors and beta-blockers). Methods: A total of 94 consecutive patients with AMI with ST-segment elevation were enrolled. Echocardiograms were performed during the in-hospital phase and after 6 months. Systolic dysfunction was defined as ejection fraction value < 50%. Results: In the initial echocardiogram, 64% of patients had systolic dysfunction. Patients with ventricular dysfunction had greater infarct size, assessed by the measurement of total and isoenzyme MB creatine kinase enzymes, than patients without dysfunction. Additionally, 24.5% of patients that initially had systolic dysfunction showed recovery within 6 months after AMI. Patients who recovered ventricular function had smaller infarct sizes, but larger values of ejection fraction and E-wave deceleration time than patients without recovery. At the multivariate analysis, it can be observed that infarct size was the only independent predictor of functional recovery after 6 months of AMI when adjusted for age, gender, ejection fraction and E-wave deceleration time. Conclusion: In spite of aggressive treatment, systolic ventricular dysfunction remains a frequent event after the anterior wall myocardial infarction. Additionally, 25% of patients show functional recovery. Finally, infarct size was the only significant predictor of functional recovery after six months of acute myocardial infarction. .


Fundamento: Os efeitos da terapêutica moderna na recuperação funcional após o infarto agudo do miocárdio não são conhecidos. Objetivos: Avaliar os fatores preditores da recuperação funcional sistólica após infarto agudo do miocárdio de parede anterior em pacientes submetidos à terapia moderna (reperfusão, antiagregação plaquetária agressiva, inibidores da enzima conversora da angiotensina e betabloqueadores). Métodos: Foram incluídos 94 pacientes consecutivos com infarto agudo do miocárdio com supradesnivelamento do segmento ST. Ecocardiogramas foram realizados na fase intra-hospitalar e após 6 meses. Disfunção sistólica foi definida pela presença de fração de ejeção de valor < 50%. Resultados: No ecocardiograma inicial, 64% dos pacientes apresentaram disfunção sistólica. Os pacientes com disfunção ventricular apresentaram tamanhos maiores de infarto, avaliados pelas enzimas creatinofosfoquinase total e isoenzima MB, que os pacientes sem disfunção. Adicionalmente, 24,5% dos pacientes inicialmente com disfunção sistólica apresentaram recuperação no período de 6 meses após o infarto agudo do miocárdio. Os pacientes que recuperaram a função ventricular apresentaram menores tamanhos de infarto, mas maiores valores da fração de ejeção e tempo de desaceleração da onda E que pacientes sem recuperação. Na análise multivariada, observa-se que o tamanho de infarto foi o único fator preditor independente de recuperação funcional após 6 meses de infarto, quando ajustado pela idade, sexo, fração de ejeção e tempo de desaceleração da onda E. Conclusão: Apesar do tratamento agressivo, a disfunção ventricular ...


Assuntos
Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/fisiopatologia , Infarto do Miocárdio/reabilitação , Recuperação de Função Fisiológica , Sístole/fisiologia , Disfunção Ventricular Esquerda/fisiopatologia , Disfunção Ventricular Esquerda/reabilitação , Ecocardiografia , Modelos Logísticos , Infarto do Miocárdio/patologia , Valores de Referência , Fatores de Risco , Sensibilidade e Especificidade , Estatísticas não Paramétricas , Volume Sistólico/fisiologia , Fatores de Tempo , Resultado do Tratamento
5.
PLoS One ; 8(10): e77747, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24167581

RESUMO

PURPOSE: To investigate the predictors of intolerance to beta-blockers treatment and the 6-month mortality in hospitalized patients with acute coronary syndrome (ACS). METHODS: This was a single-center, prospective, and longitudinal study including 370 consecutive ACS patients in Killip class I or II. BBs were prescribed according to international guidelines and withdrawn if intolerance occurred. The study was approved by the institutional ethics committee of our university. STATISTICS: the clinical parameters evaluated at admission, and the related intolerance to BBs and death at 6 months were analyzed using logistic regression (p<0.05)in PATIENTS. RESULTS: BB intolerance was observed in 84 patients and was associated with no prior use of statins (OR: 2.16, 95%CI: 1.26-3.69, p= 0.005) and Killip class II (OR: 2.5, 95%CI: 1.30-4.75, p=0.004) in the model adjusted for age, sex, blood pressure, and renal function. There was no association with ST-segment alteration or left anterior descending coronary artery plaque. Intolerance to BB was associated with the greatest risk of death (OR: 4.5, 95%CI: 2.15-9.40, p<0.001). CONCLUSIONS: After ACS, intolerance to BBs in the first 48 h of admission was associated to non previous use of statin and Killip class II and had a high risk of death within 6 months.


Assuntos
Síndrome Coronariana Aguda/tratamento farmacológico , Síndrome Coronariana Aguda/mortalidade , Antagonistas Adrenérgicos beta/efeitos adversos , Modelos Biológicos , Antagonistas Adrenérgicos beta/administração & dosagem , Fatores Etários , Idoso , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Tempo
6.
Arq. bras. cardiol ; 100(6): 518-523, jun. 2013. tab
Artigo em Português | LILACS | ID: lil-679142

RESUMO

FUNDAMENTO: A relevância do padrão de geometria após o infarto do miocárdio não é conhecida. OBJETIVOS: Analisar a presença de diferentes padrões de geometria ventricular esquerda (VE) e seu impacto como preditor de remodelação em pacientes com infarto do miocárdio. MÉTODOS: Pacientes com infarto agudo anterior (n = 80) foram divididos de acordo com o padrão de geometria: normal (índice de massa [IMVE] normal e espessura relativa da parede [ERP] normal), remodelação concêntrica (IMVE normal e ERP aumentada), hipertrofia concêntrica (IMVE e ERP aumentadas) e hipertrofia excêntrica (IMVE aumentado e ERP normal). Após seis meses, foi repetido o ecocardiograma. RESULTADOS: Quatro pacientes foram a óbito. Dos sobreviventes, 41 apresentaram remodelação (R+), enquanto 39 não remodelaram (R-). Considerando-se o padrão geométrico, houve a seguinte distribuição: 24 pacientes com padrão normal, 13 com remodelação concêntrica, 29 com hipertrofia concêntrica e 14 com hipertrofia excêntrica. Os pacientes que remodelaram apresentaram maiores tamanhos de infarto analisados pelo pico da CPK (R+ = 4.610 (1.688 - 7.970), R- = 1.442 (775 - 4.247), p < 0,001) e da CK-MB (R+ = 441 (246 - 666), R- = 183 (101 - 465), p < 0,001), tendência a maior prevalência de remodelação concêntrica (R+ = 10, R- = 3, p = 0,08) e menor prevalência de hipertrofia excêntrica (R+ = 2, R- = 12, p = 0,006). Na análise de regressão multivariada, o tamanho do infarto foi preditor (OR = 1,01; p = 0,020) e a hipertrofia excêntrica foi fator protetor (OR = 0,189; p = 0,046) de remodelação ventricular após a oclusão coronariana. CONCLUSÃO: O padrão de geometria ventricular pode ter impacto no processo de remodelação em pacientes com infarto do miocárdio.


BACKGROUND: The relevance of left ventricular (LV) geometric pattern after myocardial infarction is not known. OBJECTIVES: To analyze the presence of different LV geometric patterns and teir impact as a predictor of remodeling in patients with myocardial infarction. METHODS: Patients with anterior acute myocardial infarction (n = 80) were divided according to the geometric pattern: normal (normal left ventricular mass index [LVMI] and normal relative wall thickness [RWT]), concentric remodeling (normal LVMI and increased RWT), concentric hypertrophy (increased LVMI and RWT) and eccentric hypertrophy (increased LVMI and normal RWT). After six months, echocardiographic assessment was repeated. RESULTS: Four patients died. Of the survivors, 41 showed remodeling (R +), whereas 39 did not (R-). Considering the geometric pattern, the cases were distributed as follows: 24 patients with normal pattern, 13 with concentric remodeling, 29 with concentric hypertrophy and 14 with eccentric hypertrophy. Patients who showed remodeling had larger infarction sizes analyzed by peak CPK (R + = 4,610 (1,688-7,970), R- = 1,442 (775-4247), p <0.001) and CK-MB (R + = 441 (246 - 666), R- = 183 (101-465), p <0.001), trend towards higher prevalence of concentric remodeling (R+ = 10, R- = 3, p = 0.08) and lower prevalence of eccentric hypertrophy (R + = 2 R- = 12, p = 0.006). In the multivariate regression analysis, infarction size was a predictor (OR = 1.01, p = 0.020) and eccentric hypertrophy was a protective factor (OR = 0.189, p = 0.046) of ventricular remodeling after coronary occlusion. CONCLUSION: The LV geometric pattern of can have an impact on the remodeling process in patients with myocardial infarction.


Assuntos
Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto Miocárdico de Parede Anterior/fisiopatologia , Ventrículos do Coração/fisiopatologia , Remodelação Ventricular/fisiologia , Fatores Etários , Infarto Miocárdico de Parede Anterior , Ecocardiografia , Ventrículos do Coração , Hipertrofia Ventricular Esquerda/fisiopatologia , Hipertrofia Ventricular Esquerda , Valor Preditivo dos Testes , Estudos Prospectivos , Fatores de Risco , Fatores Sexuais
7.
Arq Bras Cardiol ; 100(6): 518-23, 2013 Jun.
Artigo em Inglês, Português | MEDLINE | ID: mdl-23657271

RESUMO

BACKGROUND: The relevance of left ventricular (LV) geometric pattern after myocardial infarction is not known. OBJECTIVES: To analyze the presence of different LV geometric patterns and their impact as a predictor of remodeling in patients with myocardial infarction. METHODS: Patients with anterior acute myocardial infarction (n = 80) were divided according to the geometric pattern: normal (normal left ventricular mass index [LVMI] and normal relative wall thickness [RWT]), concentric remodeling (normal LVMI and increased RWT), concentric hypertrophy (increased LVMI and RWT) and eccentric hypertrophy (increased LVMI and normal RWT). After six months, echocardiographic assessment was repeated. RESULTS: Four patients died. Of the survivors, 41 showed remodeling (R +), whereas 39 did not (R-). Considering the geometric pattern, the cases were distributed as follows: 24 patients with normal pattern, 13 with concentric remodeling, 29 with concentric hypertrophy and 14 with eccentric hypertrophy. Patients who showed remodeling had larger infarction sizes analyzed by peak CPK (R + = 4,610 (1,688-7,970), R- = 1,442 (775-4247), p <0.001) and CK-MB (R + = 441 (246 - 666), R- = 183 (101-465), p <0.001), trend towards higher prevalence of concentric remodeling (R+ = 10, R- = 3, p = 0.08) and lower prevalence of eccentric hypertrophy (R + = 2 R- = 12, p = 0.006). In the multivariate regression analysis, infarction size was a predictor (OR = 1.01, p = 0.020) and eccentric hypertrophy was a protective factor (OR = 0.189, p = 0.046) of ventricular remodeling after coronary occlusion. CONCLUSION: The LV geometric pattern of can have an impact on the remodeling process in patients with myocardial infarction.


Assuntos
Infarto Miocárdico de Parede Anterior/fisiopatologia , Ventrículos do Coração/fisiopatologia , Remodelação Ventricular/fisiologia , Adulto , Fatores Etários , Idoso , Infarto Miocárdico de Parede Anterior/diagnóstico por imagem , Ecocardiografia , Feminino , Ventrículos do Coração/diagnóstico por imagem , Humanos , Hipertrofia Ventricular Esquerda/diagnóstico por imagem , Hipertrofia Ventricular Esquerda/fisiopatologia , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos , Fatores de Risco , Fatores Sexuais
8.
Arq. bras. cardiol ; 100(4): 315-321, abr. 2013. ilus, tab
Artigo em Português | LILACS | ID: lil-674195

RESUMO

FUNDAMENTO: O papel de metaloproteinases (MMP) séricas após o infarto do miocárdio (IM) é desconhecido. OBJETIVO: O objetivo deste estudo foi o de avaliar o papel das MMP-2 e -9 séricas como marcadores prognósticos da remodelação ventricular seis meses após o IM anterior. MÉTODOS: Fizemos um registro prospectivo dos pacientes após o seu primeiro IM anterior. A atividade de MMP foi analisada entre 12 a 72 horas após o IM. Foi feito um ecocardiograma durante a internação e seis meses depois. RESULTADOS: Incluímos 29 pacientes; 62% mostraram remodelação ventricular. Os pacientes que mostraram remodelação tinham maior tamanho de infarto baseado nos valores pico da creatinofosfoquinase (CPK) (p = 0,037), alta prevalência de insuficiência cardíaca congestiva em hospitais (p = 0,004), e redução da fração de ejeção (FE) (p = 0,007). Os pacientes com remodelação ventricular tiveram menores níveis séricos de MMP-9 inativa (p = 0,007) e maiores níveis da forma ativa da MMP-2 (p = 0,011). Em um modelo de regressão logística multivariada, ajustado pela idade, pico de CPK, FE e prevalência de insuficiência cardíaca, os níveis séricos da MMP-2 e -9 estavam associados à remodelação (p = 0,033 e 0,044, respectivamente). CONCLUSÃO: Níveis séricos mais elevados da MMP-9 inativa foram associados com a preservação dos volumes ventriculares esquerdos, e níveis séricos mais elevados da forma ativa da MMP-2 foram um preditor da remodelação seis meses após o IM.


BACKGROUND: The role of serum metalloproteinases (MMP) after myocardial infarction (MI) is unknown. OBJECTIVE: The aim of this study was to evaluate the role of serum MMP-2 and -9 as predictors of ventricular remodeling six months after anterior MI. METHODS: We prospectively enrolled patients after their first anterior MI. MMP activity was assayed 12 to 72 hours after the MI. An echocardiogram was performed during the hospitalization and six months later. RESULTS: We included 29 patients; 62% exhibited ventricular remodeling. The patients who exhibited remodeling had higher infarct size based on creatine phosphokinase (CPK) peak values (p = 0.037), higher prevalence of in-hospital congestive heart failure (p = 0.004), and decreased ejection fraction (EF) (p = 0.007). The patients with ventricular remodeling had significantly lower serum levels of inactive MMP-9 (p = 0.007) and significantly higher levels of the active form of MMP-2 (p = 0.011). In a multivariate logistic regression model, adjusted by age, CPK peak, EF and prevalence of heart failure, MMP-2 and -9 serum levels remained associated with remodeling (p = 0.033 and 0.044, respectively). CONCLUSIONS: Higher serum levels of inactive MMP-9 were associated with the preservation of left ventricular volumes, and higher serum levels of the active form of MMP-2 were a predictor of remodeling 6 months after MI.


Assuntos
Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Metaloproteinase 9 da Matriz/sangue , /sangue , Infarto do Miocárdio/enzimologia , Remodelação Ventricular/fisiologia , Biomarcadores/sangue , Creatina Quinase/sangue , Métodos Epidemiológicos , Ventrículos do Coração , Infarto do Miocárdio/sangue , Infarto do Miocárdio/fisiopatologia , Prognóstico
9.
Arq Bras Cardiol ; 100(4): 315-21, 2013 Apr.
Artigo em Inglês, Português | MEDLINE | ID: mdl-23525272

RESUMO

BACKGROUND: The role of serum metalloproteinases (MMP) after myocardial infarction (MI) is unknown. OBJECTIVE: The aim of this study was to evaluate the role of serum MMP-2 and -9 as predictors of ventricular remodeling six months after anterior MI. METHODS: We prospectively enrolled patients after their first anterior MI. MMP activity was assayed 12 to 72 hours after the MI. An echocardiogram was performed during the hospitalization and six months later. RESULTS: We included 29 patients; 62% exhibited ventricular remodeling. The patients who exhibited remodeling had higher infarct size based on creatine phosphokinase (CPK) peak values (p = 0.037), higher prevalence of in-hospital congestive heart failure (p = 0.004), and decreased ejection fraction (EF) (p = 0.007). The patients with ventricular remodeling had significantly lower serum levels of inactive MMP-9 (p = 0.007) and significantly higher levels of the active form of MMP-2 (p = 0.011). In a multivariate logistic regression model, adjusted by age, CPK peak, EF and prevalence of heart failure, MMP-2 and -9 serum levels remained associated with remodeling (p = 0.033 and 0.044, respectively). CONCLUSIONS: Higher serum levels of inactive MMP-9 were associated with the preservation of left ventricular volumes, and higher serum levels of the active form of MMP-2 were a predictor of remodeling 6 months after MI.


Assuntos
Metaloproteinase 2 da Matriz/sangue , Metaloproteinase 9 da Matriz/sangue , Infarto do Miocárdio/enzimologia , Remodelação Ventricular/fisiologia , Biomarcadores/sangue , Creatina Quinase/sangue , Métodos Epidemiológicos , Feminino , Ventrículos do Coração/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/sangue , Infarto do Miocárdio/fisiopatologia , Prognóstico , Ultrassonografia
10.
Nutrition ; 29(1): 122-6, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22959633

RESUMO

OBJECTIVE: The impact of obesity on ventricular remodeling after myocardial infarction (MI) is still poorly understood. Therefore, the aim of this study was to evaluate the role of waist circumference (WC) and body mass index as predictors of cardiac remodeling in patients after an anterior MI. METHODS: Eighty-three consecutive patients with anterior MI were prospectively evaluated. Clinical characteristics and echocardiographic data were analyzed at admission and at a 6-mo follow-up. Ventricular remodeling was defined as a 10% increase in left ventricular end-systolic or end-diastolic diameter at the 6-mo follow-up. RESULTS: In our study, 83 consecutive patients were evaluated (72% men). Ventricular remodeling was present in 31% of the patients (77% men). Patients with remodeling had higher creatine phosphokinase and creatine phosphokinase-MB peak values, a higher resting heart rate, a larger left atrial diameter, and a larger interventricular septum diastolic thickness. In addition, patients with remodeling had lower peak velocity of early ventricular filling deceleration time and ejection fraction. Patients with remodeling presented higher WC values (with remodeling, 99.2 ± 10.4 cm; without remodeling, 93.9 ± 10.8 cm, P = 0.04), but there were no differences in the body mass index values. In the logistic regression analysis, WC, adjusted by age, gender, ejection fraction, and creatine phosphokinase levels, was an independent predictor of left ventricular remodeling (odds ratio 1.067, 95% confidence interval 1.001-1.129, P = 0.02). CONCLUSION: Waist circumference, but not body mass index, is a predictor of ventricular remodeling after an anterior MI. Therefore, the WC of these patients should be measured in clinical practice.


Assuntos
Infarto do Miocárdio/patologia , Remodelação Ventricular , Circunferência da Cintura , Idoso , Índice de Massa Corporal , Ecocardiografia Doppler em Cores , Ecocardiografia Doppler de Pulso , Feminino , Ventrículos do Coração/diagnóstico por imagem , Ventrículos do Coração/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico por imagem , Valor Preditivo dos Testes , Estudos Prospectivos
11.
Med Sci Monit ; 18(5): CR276-81, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22534706

RESUMO

BACKGROUND: The consequences of aggressive therapy following a myocardial infarction (MI) on ventricular remodeling are not well established. Thus, the objective of this study was to analyze the prevalence, clinical characteristics, and predictors of left ventricular remodeling in the era of modern medical therapy. MATERIAL/METHODS: Clinical characteristics and echocardiographic data were analyzed in 66 consecutive patients with anterior infarction at admission and at 6-month follow-up. Ventricular remodeling was defined as an increase of 10% in ventricular end-systolic or end-diastolic diameter. RESULTS: In our study, 58% of patients presented with ventricular remodeling. Patients with remodeling possessed higher total plasma creatine kinase (CPK), MB-fraction (CPK-MB), heart rate, heart failure, shortness of breath, and reperfusion therapy than patients without remodeling. In contrast, patients with remodeling had a smaller ejection fraction, E-Wave deceleration time (EDT), and early (E' Wave) and late (A' Wave) diastolic mitral annulus velocity (average of septal and lateral walls), but a higher E/E' than patients without remodeling. Patients with remodeling used more diuretics, digoxin, oral anticoagulants and aldosterone antagonists than patients without remodeling. In the multivariate analyses, only E' Wave was an independent predictor of ventricular remodeling. Each 1 unit increase in the E' Wave was associated with a 59% increased odds of ventricular remodeling. CONCLUSIONS: In patients with anterior MI, despite contemporary treatment, ventricular remodeling is still a common event. In addition, diastolic function can have an important role as a predictor of remodeling in this scenario.


Assuntos
Infarto do Miocárdio/fisiopatologia , Remodelação Ventricular , Idoso , Ecocardiografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico por imagem , Infarto do Miocárdio/tratamento farmacológico , Infarto do Miocárdio/epidemiologia , Prevalência
12.
Can J Cardiol ; 28(4): 438-42, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22421637

RESUMO

BACKGROUND: Regardless significant therapeutic advances, mortality and morbidity after myocardial infarction (MI) are still high. For a long time, the importance of right ventricle (RV) function has been neglected. Recently, RV dysfunction has also been associated with poor outcomes in the setting of heart failure. The shape, location, and contraction conditions make the RV chamber assessment technically challenging. METHODS: Our study identified clinical characteristics and left ventricle (LV) echocardiographic data performed 3-5 days after MI that could be associated with RV dysfunction (RV fractional area change [FAC] < 35%) 6 months after MI. RESULTS: The RV dysfunction group consisted of 11 patients (RV FAC 29.4% ± 5.2) and the no RV dysfunction group of 71 patients (RV FAC 43.7% ± 5.1); (P < 0.001). Both groups presented the same baseline clinical characteristics. Left atrium (LA), interventricular septum (IVS), and left ventricular posterior wall (LVPW) were larger in RV dysfunction than in no RV dysfunction. Conversely, E wave deceleration time (EDT) was lower in RV dysfunction when compared with no RV dysfunction. Left atrium(adj) (adjusted by gender, age, infarct size, and body mass index) (odds ratio [OR], 1.22; confidence interval [CI], 1.016-1.47; P = 0.032), interventricular septum(adj) (OR, 1.49; CI, 1.01-2.23; P = 0.044), and E wave deceleration time(adj) (OR, 0.98; CI, 0.97-0.98; P = 0.029) assessed soon after MI predicted RV failure after 6-months. CONCLUSIONS: LV diastolic dysfunction, resulting from anterior MI and assessed 3-5 days after the event, may play an important role in predicting RV dysfunction 6 months later.


Assuntos
Infarto Miocárdico de Parede Anterior/diagnóstico , Disfunção Ventricular Direita/diagnóstico , Adulto , Idoso , Infarto Miocárdico de Parede Anterior/mortalidade , Infarto Miocárdico de Parede Anterior/fisiopatologia , Ecocardiografia , Feminino , Seguimentos , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Pessoa de Meia-Idade , Contração Miocárdica/fisiologia , Fatores de Risco , Volume Sistólico/fisiologia , Análise de Sobrevida , Disfunção Ventricular Direita/mortalidade , Disfunção Ventricular Direita/fisiopatologia
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