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1.
Coron Artery Dis ; 35(2): 143-148, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38206802

RESUMO

Myocardial infarction (MI) with non-obstructive coronary arteries (MINOCA) covers an expanding group of patients over recent years. Previous studies showed considerable risks of outcomes in this group. However, there is a lack of evidence in young patients with MINOCA. In this study, we aimed to investigate the long-term outcomes in very young patients with MINOCA. We retrospectively compared the features and predictors of 183 very young (≤40-year-old) patients to >40-year-old patients with MINOCA. We compared the baseline characteristics and major adverse cardiac events (total MI, revascularization and mortality) rates between the groups during a median follow-up of 7.3 years. We performed the Cox regression analysis to investigate the risk factors for mortality. We found that the ≤40-year-old group with MINOCA had 12% mortality rates during the follow-up. They had significantly lower rates of diabetes and hypertension and higher rates of male gender and smoking compared to the older group. The very young group also had lower rates of CRF, previous MI and atrial fibrillation. The ≤40-year-old groups received significantly lower rates of medications. Ejection fraction (EF) <30% was independently associated with 6-fold increases in total mortality [hazard ratio (HR) = 6.23, 95% confidence interval (CI) 1.42-27.2, P = 0.02] in the ≤40-year-old group. In conclusion, the ≤40-year-old patients with MINOCA have substantial long-term mortality rates. EF <30% was independently associated with total mortality in this group. Moreover, the ≤40-year-old group also received less intense medical therapy compared to their older counterparts.


Assuntos
Doença da Artéria Coronariana , Infarto do Miocárdio , Humanos , Masculino , Adulto , MINOCA , Vasos Coronários/diagnóstico por imagem , Estudos Retrospectivos , Angiografia Coronária/efeitos adversos , Infarto do Miocárdio/epidemiologia , Infarto do Miocárdio/terapia , Infarto do Miocárdio/etiologia , Fatores de Risco , Prognóstico , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/terapia
2.
Angiology ; 74(4): 374-380, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-35732598

RESUMO

Patients with recent myocardial infarction (MI) or percutaneous coronary interventions (PCI) have a higher ischemic risk in addition to perioperative bleeding risk when undergoing coronary artery bypass grafting (CABG). Data regarding preoperative dual antiplatelet therapy (DAPT) failed to create a clear recommendation. In the present study, we assessed the relationship between preoperative DAPT use and adverse outcomes, particularly in ST-elevation MI (STEMI) patients. We retrospectively analyzed 748 consecutive patients with STEMI who underwent subsequent CABG surgery. Patients were divided into 2 groups: those on DAPT up to the day before CABG and those discontinued DAPT >5 days before CABG. Predictors of in-hospital mortality and major bleeding were analyzed by multivariate analysis. Preoperative DAPT was not associated with in-hospital mortality (Odds Ratio (OR):1.81; 95% Confidence Interval (CI): .89-3.68, P = .10) and major bleeding (OR: 1.15; 95% CI: .63-2.08, P = .65) after multivariate analysis. However, glycoprotein (Gp) 2b/3a inhibitors were independently associated with higher major bleeding rates. Age, shock, and EF (ejection fraction) <30% were associated with in-hospital mortality. Previous MI, Gp 2b/3a inhibitors, and EF <30% were predictors of major bleeding. In conclusion, there were no association between pre-CABG DAPT use and in-hospital mortality and major bleeding.


Assuntos
Intervenção Coronária Percutânea , Infarto do Miocárdio com Supradesnível do Segmento ST , Humanos , Inibidores da Agregação Plaquetária/efeitos adversos , Infarto do Miocárdio com Supradesnível do Segmento ST/cirurgia , Vasos Coronários , Estudos Retrospectivos , Intervenção Coronária Percutânea/efeitos adversos , Resultado do Tratamento , Hemorragia/induzido quimicamente
3.
Angiology ; 72(9): 836-841, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33874777

RESUMO

Decision of ad hoc revascularization strategy in patients who require coronary artery bypass grafting (CABG) following primary percutaneous coronary interventions (PCI) is challenging due to the pros and cons of only-ballooning and stenting. In this study, we aimed to compare the outcomes of only-balloon-angioplasty to stenting in primary PCI in patients with ST elevated myocardial infarction (STEMI) who required a subsequent CABG. We retrospectively analyzed 350 consecutive STEMI patients who needed CABG in addition to primary balloon angioplasty (n = 160) and stenting strategy (n = 190). In-hospital and 5-year outcomes of the patients were compared between the 2 groups. In-hospital mortality rates in the ballooning and stenting groups were not nonsignificantly different (11.2% vs 9.5%, respectively, P = .59); 5-year mortality rates were also similar between the 2 groups (9.2% vs 8.7%, P = .89). Additionally, major bleeding rates (3.8% vs 6.3%, P = .28) did not differ between the 2 groups. In conclusion, our study showed no significant difference in-hospital and long-term mortality rates in patients who require CABG after primary PCI irrespective of the ad hoc revascularization strategy.


Assuntos
Angioplastia Coronária com Balão/instrumentação , Ponte de Artéria Coronária , Infarto do Miocárdio com Supradesnível do Segmento ST/terapia , Stents , Idoso , Angioplastia Coronária com Balão/efeitos adversos , Angioplastia Coronária com Balão/mortalidade , Ponte de Artéria Coronária/efeitos adversos , Ponte de Artéria Coronária/mortalidade , Feminino , Mortalidade Hospitalar , Humanos , Masculino , Pessoa de Meia-Idade , Hemorragia Pós-Operatória/etiologia , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico por imagem , Infarto do Miocárdio com Supradesnível do Segmento ST/mortalidade , Infarto do Miocárdio com Supradesnível do Segmento ST/fisiopatologia , Fatores de Tempo , Resultado do Tratamento
4.
Ren Fail ; 38(8): 1167-73, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27436614

RESUMO

BACKGROUND: Contrast induced nephropathy (CIN) has been proven as a clinical condition related to adverse cardiovascular outcomes. However, relationship between CIN and stent restenosis (SR) remains unclear. In this study, we aimed to investigate the association of CIN with SR rates after primary percutaneous coronary intervention (PCI) and bare metal stent (BMS) implantation. METHODS: A total number of 3225 patients who had undergone primary PCI for STEMI were retrospectively recruited. The medical reports of subjects were searched to find whether the patients had a control coronary angiogram (CAG) and 587 patients with control CAG were included in the study. The laboratory parameters of 587 patients were recorded and patients who developed CIN after primary PCI were defined. Contrast induced nephropathy was defined as either a 25% increase in serum creatinine from baseline or 0.5 mg/dL increase in absolute value, within 72 h of intravenous contrast administration. RESULTS: The duration between primary PCI and control CAG was median 12 months [8-24 months]. The rate of SR was significantly higher in CIN (+) group compared to CIN (-) group (64% vs. 46%, p < 0.01). In multivariate Cox regression analysis, male gender, stent length, admission WBC levels and presence of CIN (HR 1.39, 95% CI 1.06-1.82, p < 0.01) remained as the independent predictors of SR in the study population. CONCLUSION: Gender, stent length, higher serum WBC levels and presence of CIN are independently correlated with SR in STEMI patients treated with BMS implantation.


Assuntos
Meios de Contraste/efeitos adversos , Angiografia Coronária/efeitos adversos , Reestenose Coronária/epidemiologia , Nefropatias/induzido quimicamente , Intervenção Coronária Percutânea , Infarto do Miocárdio com Supradesnível do Segmento ST/cirurgia , Stents/efeitos adversos , Idoso , Reestenose Coronária/etiologia , Creatinina/sangue , Feminino , Humanos , Estimativa de Kaplan-Meier , Modelos Logísticos , Masculino , Metais , Pessoa de Meia-Idade , Análise Multivariada , Estresse Oxidativo/efeitos dos fármacos , Estudos Retrospectivos , Fatores de Risco , Turquia
5.
Catheter Cardiovasc Interv ; 88(5): 748-753, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27143640

RESUMO

OBJECTIVE: We aimed to assess the risk factors for coronary artery ectasia (CAE) as infarct-related artery (IRA) and short-term and 1 year outcomes. BACKGROUNDS: CAE in patients with ST elevated myocardial infarction (STEMI) is a rare condition with a limited knowledge about the risk factors associated with coronary artery ectasia in STEMI and prognosis after primary percutaneous coronary interventions. METHODS: Retrospectively, 1655 patients with STEMI who were undergone coronary angiography were included in this study. Patients were divided into two groups according to their coronary anatomy as ectasia and control groups. Demographic features, angiographic results, and clinical events were compared. Multivariate analysis was performed to assess the association of the features with CAE in STEMI. RESULTS: In total, 1655 patients (99 patients in CAE group vs 1556 patients in control group) were analyzed. Hypertension and smoking were significantly higher in CAE group. No-reflow rates were significantly higher (13.1% vs 5.4%, p = 0.004) in CAE group. In-hospital mortality rates were similar between the groups. Difference in revascularization rates (8.1% vs 9.6%, p = 0.39) and death in 1 year (6.1% vs 4.9%, p = 0.37) were also nonsignificant between the groups. According to results of the multivariate analysis, hypertension (Odds ratio (OR): 1.71 (1.14-2.58), p = 0.01) and smoking (OR: 1.98 (1.32-2.99), p = 0.001) remained significantly associated with coronary ectasia. CONCLUSION: In conclusion, despite being higher no-reflow rates, short-term and 1 year survival and revascularization rates were similar between the groups. Additionally, hypertension and smoking were associated with CAE as IRA. © 2016 Wiley Periodicals, Inc.


Assuntos
Aneurisma Coronário/epidemiologia , Vasos Coronários/fisiopatologia , Intervenção Coronária Percutânea/métodos , Complicações Pós-Operatórias , Infarto do Miocárdio com Supradesnível do Segmento ST/cirurgia , Aneurisma Coronário/diagnóstico por imagem , Aneurisma Coronário/etiologia , Angiografia Coronária , Vasos Coronários/diagnóstico por imagem , Vasos Coronários/cirurgia , Elasticidade , Eletrocardiografia , Feminino , Seguimentos , Mortalidade Hospitalar/tendências , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Razão de Chances , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico , Turquia/epidemiologia
6.
Arq. bras. cardiol ; 105(4): 362-370, tab
Artigo em Inglês | LILACS | ID: lil-764467

RESUMO

AbstractBackground:The relationship between psychiatric illness and heart disease has been frequently discussed in the literature. The aim of the present study was to investigate the relationship between anxiety, depression and overall psychological distress, and coronary slow flow (CSF).Methods:In total, 44 patients with CSF and a control group of 50 patients with normal coronary arteries (NCA) were prospectively recruited. Clinical data, admission laboratory parameters, and echocardiographic and angiographic characteristics were recorded. Symptom Checklist 90 Revised (SCL-90-R), Beck Depression Inventory (BDI), and Beck Anxiety Inventory (BAI) scales were administered to each patient.Results:The groups were comparable with respect to age, sex, and atherosclerotic risk factors. In the CSF group, BAI score, BDI score, and general symptom index were significantly higher than controls (13 [18.7] vs. 7.5 [7], p = 0.01; 11 [14.7] vs. 6.5 [7], p = 0.01; 1.76 [0.81] vs. 1.1[0.24], p = 0.01; respectively). Patients with CSF in more than one vessel had the highest test scores. In univariate correlation analysis, mean thrombolysis in myocardial infarction (TIMI) frame counts were positively correlated with BAI (r = 0.56, p = 0.01), BDI (r = 0.47, p = 0.01), and general symptom index (r = 0.65, p = 0.01). The psychiatric tests were not correlated with risk factors for atherosclerosis.Conclusion:Our study revealed higher rates of depression, anxiety, and overall psychological distress in patients with CSF. This conclusion warrants further studies.


ResumoFundamento:A investigação da relação entre doença psiquiátrica e doença cardíaca sempre foi um tema de interesse na literatura médica.Objetivo:Investigar a relação entre ansiedade, depressão e distúrbios psicológicos gerais e fluxo coronariano lento (FCL).Métodos:Quarenta e quatro pacientes com FCL e 50 pacientes com fluxo coronariano normal (FCN) foram recrutados prospectivamente. Foram registrados: dados clínicos, parâmetros laboratoriais à admissão e características ecocardiográficas e angiográficas. Escalas de avaliação da Lista de Verificação de Sintomas-90 Revisada (SCL-90-R), do Inventário Beck de Depressão (IBD) e do Inventário Beck de Ansiedade (IBA) foram determinadas para cada paciente.Resultados:O grupo FCL incluiu 44 indivíduos e o grupo controle 50 indivíduos. Os grupos foram comparados quanto à idade, sexo e fatores de risco para aterosclerose. No grupo FCL, os escores do IBA, do IBD e do índice geral de sintomas foram significativamente mais altos que no grupo controle (13 [18,7] vs. 7,5 [7], p = 0,01; 11 [14,7] vs. 6,5 [7], p = 0,01; 1,76 [0,81] vs. 1,1[0,24], p = 0,01; respectivamente). Pacientes com FCL em mais de um vaso apresentaram os escores mais elevados. Na análise de correlação univariada, a média das contagens de quadros TIMI foi correlacionada positivamente com o IBA (r = 0,56, p = 0,01), com o IBD (r = 0,47, p = 0,01) e com o Índice Geral de Sintomas (r = 0,65, p = 0,01). Os testes psiquiátricos não tiveram correlação com fatores de risco para aterosclerose.Conclusão:Nosso estudo revelou taxas de depressão, ansiedade e distúrbios psicológicos gerais mais elevadas em pacientes com FCL. Esta conclusão justifica novos estudos.


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos de Ansiedade/fisiopatologia , Doença da Artéria Coronariana/fisiopatologia , Doença da Artéria Coronariana/psicologia , Circulação Coronária/fisiologia , Transtorno Depressivo/fisiopatologia , Estresse Psicológico/fisiopatologia , Velocidade do Fluxo Sanguíneo/fisiologia , Pressão Sanguínea/fisiologia , Angiografia Coronária , Métodos Epidemiológicos , Testes Psicológicos
7.
Am J Emerg Med ; 33(8): 1114.e1-3, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25676852

RESUMO

Marijuana (cannabis) is a frequently used recreational drug that potentially imposes serious health problems. We present a case of acute myocardial infarction with chronic total occlusion of left main coronary artery due to marijuana smoking in a 27-year-old man, which was not previously reported. This case illustrate that marijuana abuse can lead to serious cardiovascular events.


Assuntos
Cannabis/efeitos adversos , Fumar Maconha/efeitos adversos , Infarto do Miocárdio/induzido quimicamente , Adulto , Humanos , Masculino
8.
Heart Views ; 15(2): 57-9, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25104986

RESUMO

Anomalous origin of the circumflex coronary artery from the right sinus of Valsalva is the most common coronary anomaly. It is thought to be of no clinical relevance unless cardiac surgery is performed. We report a 53-year-old patient with aberrant circumflex coronary artery origin from the right aortic sinus of Valsalva which was first suspected from transthoracic 2D and transesophageal 3D echocardiographic views and confirmed by coronary CT angiography. The patient did not receive further diagnostic or therapeutic options. Therefore, we recommended medical therapy with optimal treatment of his cardiovascular risk factors together with regular clinical follow up.

9.
Int Heart J ; 55(4): 296-300, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24881583

RESUMO

The concept that coronary artery ectasia (CAE) is an inflammatory-related disease has been increasingly recognized. Periodontitis induced low-grade chronic systemic inflammation has been shown to be associated with cardiovascular diseases. The aim of the present study was to evaluate the association between periodontitis and CAE.Thirty-two patients with isolated CAE, and 28 age, sex and smoking status-matched subjects with normal coronary arteries (NCA) underwent full dental examinations. Periodontal disease was evaluated using the following clinical parameters; number of remaining teeth, plaque index (PI), gingival index (GI), bleeding on probing (BOP), and pocket depth (PD).Cases and controls did not differ according to their baseline characteristics and prevalence of traditional cardiovascular risk factors. Patients with isolated CAE had higher periodontal indices when compared to subjects with NCA (PD: 3.6 ± 1.26 mm versus 2.3 ± 0.79 mm; GI: 2.29 ± 0.86 versus 1.43 ± 1.19; BOP (%): 52.18 ± 20.1 versus 27.8 ± 10.9, P < 0.001, P < 0.05 and P < 0.05, respectively). Moreover, in multivariate analysis higher values for PD were found to be significant predictors for the likelihood of having coronary ectasia.The results of the present study demonstrate for the first time that there is an association between periodontitis and isolated CAE.


Assuntos
Doença da Artéria Coronariana/diagnóstico , Periodontite/diagnóstico , Angiografia Coronária , Dilatação Patológica , Feminino , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Índice Periodontal , Periodontite/complicações , Prognóstico , Estudos Prospectivos , Fatores de Risco , Índice de Gravidade de Doença
11.
Turk Kardiyol Dern Ars ; 42(3): 227-35, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24769814

RESUMO

OBJECTIVES: The prognostic importance of red cell distribution width (RDW) and neutrophil/lymphocyte ratio (NLR) in cardiovascular diseases has been shown. Ascending aortic dilatation (AAD) is a common cardiovascular disease and is associated with aortic wall inflammation and cystic degeneration. In this study, we aimed to investigate the relationship between serum levels of RDW, NLR and the presence of AAD. STUDY DESIGN: Two-hundred consecutive patients with AAD diagnosed by transthoracic echocardiography were prospectively recruited and were compared to 170 age-gender- matched subjects with normal aortic diameters. Complete blood counts (CBCs) were analyzed for hemoglobin, RDW and NLR counts, as well as mean corpuscular volume (MCV). If possible, results of CBC tests within the previous two years were also included and the averages were used. RESULTS: RDW [median 13.9, interquartile range (IQR) 1.40 vs. median 13.3, IQR 1.05%, p=0.01], NLR (median 2.04, IQR 1.09 vs. median 1.78, IQR 0.90, p=0.01) and high-sensitive C-reactive protein (hs-CRP) (median 0.60, IQR 0.80 vs. median 0.44, IQR 0.68 mg/L, p=0.01) levels were significantly higher in the AAD group compared to the control group. In univariate correlation analysis, ascending aortic diameters were correlated with RDW levels (r=0.31, p=0.01), NLR levels (r=0.15, p=0.01) and hs-CRP levels (r=0.12, p=0.03). In multivariate logistic regression analysis, increased levels of RDW and hs-CRP remained as the independent correlates of AAD in the study population. Receiver operating characteristic (ROC) curve analysis revealed that a RDW measurement higher than >13.8% predicted AAD with a sensitivity of 49.5% and a specificity of 82.8% (area under the curve [AUC] 0.681, p=0.01). CONCLUSION: In patients with AAD, RDW and hs-CRP levels are increased, which may indicate the role of inflammation in the pathogenesis of AAD.


Assuntos
Aorta/patologia , Aneurisma Aórtico/sangue , Eritrócitos/patologia , Adulto , Idoso , Estudos de Casos e Controles , Índices de Eritrócitos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
12.
Thorac Cardiovasc Surg ; 62(3): 231-5, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23619591

RESUMO

BACKGROUND: We aimed to evaluate the effect of surgical repair on right ventricular (RV) function in patients with pectus excavatum (PE) and RV compression by Doppler echocardiography. MATERIALS AND METHODS: Twenty-three patients who were admitted to our hospital for surgical correction of PE between 2009 and 2012 were included in the study. After transthoracic echocardiographic evaluation, 16 patients with RV compression were enrolled. All patients were males (100%) with a mean age of 20.5 ± 5.6 years. Transthoracic echocardiography was repeated 1 month after surgery. Echocardiographic evaluation included the assessment of RV diastolic diameter, tricuspid annular plane systolic excursion (TAPSE), pulsed tissue Doppler systolic velocity (S'), RV isovolumic acceleration (RV IVA), systolic pulmonary artery pressure, left ventricular (LV) ejection fraction, and myocardial performance indexes of both the right and the left ventricles (Tei index). RESULTS: Following the surgery, the RV end-diastolic diameter, TAPSE, S', and RV IVA were found to be significantly increased in patients with PE. In addition, RV and LV Tei index significantly improved after surgical correction. CONCLUSIONS: RV function significantly improved after corrective surgery. Quantitative echocardiographic examination provides accurate estimation when deciding for corrective surgery and also should be used in the assessment of postoperative improvement.


Assuntos
Ecocardiografia Doppler de Pulso , Tórax em Funil/cirurgia , Procedimentos Ortopédicos , Disfunção Ventricular Direita/etiologia , Função Ventricular Direita , Adolescente , Adulto , Pressão Arterial , Tórax em Funil/complicações , Tórax em Funil/diagnóstico , Tórax em Funil/fisiopatologia , Humanos , Masculino , Valor Preditivo dos Testes , Estudos Prospectivos , Artéria Pulmonar/diagnóstico por imagem , Artéria Pulmonar/fisiopatologia , Recuperação de Função Fisiológica , Fatores de Tempo , Resultado do Tratamento , Disfunção Ventricular Direita/diagnóstico por imagem , Disfunção Ventricular Direita/fisiopatologia , Função Ventricular Esquerda , Adulto Jovem
14.
Turk Kardiyol Dern Ars ; 36(8): 530-5, 2008 Dec.
Artigo em Turco | MEDLINE | ID: mdl-19223718

RESUMO

OBJECTIVES: We investigated the prevalence, distribution, risk factors, and prognosis of coronary artery ectasia (CAE) in patients undergoing coronary angiography for suspected coronary artery disease (CAD). STUDY DESIGN: Of 4,119 patients undergoing elective coronary angiography between 2003 and 2005, 173 patients (139 males, 34 females; mean age 61+/-11 years) had CAE, with a prevalence of 4.2%. Distribution of CAE was made according to the classification of Markis et al. The results were compared with those of 145 control patients (115 males, 30 males; mean age 61+/-10 years) who had CAD but not CAE. Following coronary angiography, treatment was designed as aortocoronary bypass (n=3), percutaneous coronary intervention (n=36), and medical therapy (n=98). The mean follow-up was 34.2+/-2.5 months. RESULTS: Among CAE patients, there was a marked male preponderance with 80.3%. Coronary ectasia was isolated in 46 patients (26.6%) and was associated with significant coronary artery stenoses in 127 patients (73.4%). The only significant difference with the control group with respect to baseline features was the higher frequency of hypertension in the CAE group (p=0.002). Coronary ectasia involved a single vessel in 67.1%, two vessels in 24.9%, and three vessels in 8.1%, with the right coronary artery being the most common localization (50.9%). The diameters of ectatic coronary arteries ranged from 3.2 mm to 9.7 mm (mean 5.6 mm). According to the classification of Markis et al., the majority of patients (64.2%) had type IV ectasia. In multiple regression analysis, hypertension was independently associated with CAE (OR: 0.378; 95% CI: 0.211-0.678; p=0.001). Mortality occurred in nine patients (5.2%). The annual mortality rates were 1.5%, 2.1%, and 2.9% with medical therapy, percutaneous coronary intervention, and aortocoronary bypass, respectively. CONCLUSION: Our findings suggest that further prospective studies focus on the dependent relationship between hypertension and CAE, and on marked coexistence of CAD and CAE.


Assuntos
Angiografia Coronária/métodos , Doença da Artéria Coronariana/epidemiologia , Estenose Coronária/epidemiologia , Vasos Coronários/patologia , Hipertensão/epidemiologia , Intervalos de Confiança , Ponte de Artéria Coronária/métodos , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/mortalidade , Doença da Artéria Coronariana/patologia , Estenose Coronária/complicações , Dilatação Patológica/epidemiologia , Feminino , Seguimentos , Humanos , Hipertensão/complicações , Masculino , Pessoa de Meia-Idade , Razão de Chances , Prevalência , Prognóstico , Análise de Regressão , Fatores de Risco , Fatores Sexuais
15.
Acta Cardiol ; 62(6): 579-85, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18214123

RESUMO

OBJECTIVE: Hyperhomocysteinaemia is related with premature coronary artery disease and adverse cardiac events in patients with coronary artery disease (CAD). It is assumed that hyper-homocysteinaemia causes endothelial dysfunction. In this study, the effect of folic acid and oral N-acetylcysteine (NAC) therapies on plasma homocysteine levels and endothelial function were evaluated in hyperhomocysteinaemic patients with CAD. METHODS AND RESULTS: 60 patients were randomized to either folic acid 5 mg or NAC 600 mg or placebo daily for eight weeks. Brachial artery endothelial functions were studied by using high-resolution ultrasound and assessed by measuring endothelium-dependent dilation (EDD) and endothelium-independent dilation (NEDD). Folic acid and NAC therapies decreased plasma homocysteine (from 21.7 +/- 8.7 micromol/l to 12.5 +/- 2.5 micromol/l, P < 0.001; from 20.9 +/- 7.6 micromol/l to 15.6 +/- 4.3 micromol/l, P = 0.03, respectively), and increased EDD (6.7 +/- 6.1% P = 0.002, 4.4 +/- 2.6% P < 0.001, respectively) compared with placebo. There was no significant difference in improving EDD between the folic acid and the NAC group (6.7 +/- 6.1%, 4.4 +/- 2.6%, P = 0. 168). In the univariate analyses there was an inverse correlation between the post-treatment homocysteine level and the percent change in EDD with folic acid therapy (r= -0.490, P = 0.028), but there was no correlation with the NAC therapy (r = 0.259, P = 0.333) CONCLUSION: In patients with hyperhomocysteinaemic CAD, folic acid and NAC lowered plasma homocysteine levels and improved endothelial function. The effects of both treatments in improvement of EDD were similar.


Assuntos
Acetilcisteína/administração & dosagem , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/fisiopatologia , Endotélio Vascular/fisiopatologia , Ácido Fólico/administração & dosagem , Homocisteína/sangue , Acetilcisteína/uso terapêutico , Administração Oral , Idoso , Doença da Artéria Coronariana/tratamento farmacológico , Método Duplo-Cego , Endotélio Vascular/efeitos dos fármacos , Feminino , Ácido Fólico/uso terapêutico , Humanos , Hiper-Homocisteinemia/sangue , Hiper-Homocisteinemia/tratamento farmacológico , Hiper-Homocisteinemia/fisiopatologia , Masculino , Pessoa de Meia-Idade
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