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2.
Sleep Breath ; 23(3): 747-752, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30552556

RESUMO

PURPOSE: Obstructive sleep apnea (OSA) is highly prevalent among patients with coronary artery disease (CAD). The relationship between the severity of OSA and the severity of CAD has not been entirely established. The objective was to explore the type of correlation existent between the apnea-hypopnea index and the Gensini score, which provides granularity in terms of CAD extension and severity, in search of a dose-response relationship. METHODS: A cross-sectional study was conducted among patients that underwent cardiac catheterization due to the suspicion of CAD. Coronary lesions were classified according to one's Gensini score. The severity of OSA was determined by the apnea-hypopnea index (AHI), obtainable through a respiratory polysomnography. RESULTS: Eighty patients were eligible for the study. The mean age was 55 years, and 37% had AHI ≥ 15. Forty-four subjects (55%) had a Gensini score of 0, and five had a score < 2, indicating a 25% obstruction in a non-proximal artery; these individuals were considered non-CAD controls; and clinical characteristics were similar between them and CAD cases. Attempts to correlate the AHI with the Gensini score either converting both variables to square root (r = 0.08) or using Spearman's rho (rho = 0.13) obtained small, non-significant coefficients. AHI ≥ 15 was a predictor of a Gensini score ≥ 2 with a large effect size (OR 4.46) when adjusted for age ≥ 55 years, BMI ≥ 25 kg/m2, uric acid, and hypertension. CONCLUSIONS: In patients undergoing coronary angiography due to suspected CAD, moderate-severe OSA was associated with the presence of CAD but no significant correlation was found between the lesion severity and the AHI. Our results suggest that OSA influences CAD pathogenesis but a dose-response relationship is unlikely.

3.
Coron Artery Dis ; 2018 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-30334819

RESUMO

BACKGROUND: Elevated neutrophil-to-lymphocyte ratio (NLR) is an indirect marker of inflammation, and is associated with adverse clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI). The aim of this study was to investigate the usefulness of NLR to predict procedural adverse events is patients who underwent primary percutaneous coronary intervention (PCI). PATIENTS AND METHODS: Consecutive patients with STEMI who underwent primary PCI were divided into low and high NLR, whereas high was defined as an NLR value above 75° percentile (≥9.45). The occurrence of procedural complications, in-hospital, and 30-day major adverse cardiovascular events and 1-year all-cause mortality were evaluated. RESULTS: We included 664 patients with a mean age of 60.5 (±12.1) years and 66.3% were male. In multivariate analysis, NLR remained an independent predictor of in-hospital death [relative risk (RR)=1.03; 95% confidence interval (CI)=1.00-1.08; P=0.04], contrast-induced nephropathy (RR=2.35; 95% CI=1.11-4.71; P=0.02), distal embolization (RR=2.72; 95% CI=1.55-4.75; P<0.001), and no-reflow (RR=2.31; 95% CI=2.31-4.68; P=0.01). The area under the curve for distal embolization was 0.67, 0.64 for no-reflow and 0.62 for procedural complications. A low value of NLR had an excellent negative predictive value of 97.8, 96.9, and 92.1 for distal embolization, no-reflow, and procedural complications, respectively. CONCLUSION: High NLR is an independent predictor of distal embolization, no-reflow, and procedural complications in patients with STEMI who underwent primary PCI. A low NLR value has an excellent negative predictive value for these procedural outcomes. NLR may be a useful and inexpensive tool that may be used at bedside.

4.
Atherosclerosis ; 274: 212-217, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29803159

RESUMO

BACKGROUND AND AIMS: Elevated neutrophil-to-lymphocyte ratio (NLR) and mean platelet volume (MPV) are indirect inflammatory markers. There is some evidence that both are associated with worse outcomes in ST-segment elevation myocardial infarction (STEMI) after primary percutaneous coronary intervention (PCI). The aim of the present study was to compare the capacity of NLR and MPV to predict adverse events after primary PCI. METHODS: In a prospective cohort study, 625 consecutive patients with STEMI, who underwent primary PCI, were followed. Receiver operating characteristic (ROC) curve analysis was performed to calculate the area under the curve (AUC) for the occurrence of procedural complications, mortality and major adverse cardiovascular events (MACE). RESULTS: Mean age was 60.7 (±12.1) years, 67.5% were male. The median of NLR was 6.17 (3.8-9.4) and MPV was 10.7 (10.0-11.3). In multivariate analysis, both NLR and MPV remained independent predictors of no-reflow (relative risk [RR] = 2.26; 95%confidence interval [95%CI] = 1.16-4.32; p = 0.01 and RR = 2.68; 95%CI = 1.40-5.10; p < 0.01, respectively), but only NLR remained an independent predictor of in-hospital MACE (RR = 1.01; 95%CI = 1.00-1.06; p = 0.02). The AUC for in-hospital MACE was 0.57 for NLR (95%CI = 0.53-0.60; p = 0.03) and 0.56 for MPV (95%CI = 0.52-0.60; p = 0.07). However, when AUC were compared with DeLong test, there was no statistically significant difference for these outcomes (p > 0.05). NLR had an excellent negative predictive value (NPV) of 96.7 for no-reflow and 89.0 for in-hospital MACE. CONCLUSIONS: Despite no difference in the ROC curve comparison with MPV, only NLR remained an independent predictor for in-hospital MACE. A low NLR has an excellent NPV for no-reflow and in-hospital MACE, and this could be of clinical relevance in the management of low-risk patients.

5.
Cardiovasc Interv Ther ; 33(3): 224-231, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28540634

RESUMO

Contrast-induced acute kidney injury (CI-AKI) is a common event after percutaneous coronary intervention (PCI). Presently, the main strategy to avoid CI-AKI lies in saline hydration, since to date none pharmacologic prophylaxis proved beneficial. Our aim was to determine if a low complexity mortality risk model is able to predict CI-AKI in patients undergoing PCI after ST elevation myocardial infarction (STEMI). We have included patients with STEMI submitted to primary PCI in a tertiary hospital. The definition of CI-AKI was a raise of 0.3 mg/dL or 50% in post procedure (24-72 h) serum creatinine compared to baseline. Age, glomerular filtration and ejection fraction were used to calculate ACEF-MDRD score. We have included 347 patients with mean age of 60 years. In univariate analysis, age, diabetes, previous ASA use, Killip 3 or 4 at admission, ACEF-MDRD and Mehran scores were predictors of CI-AKI. After multivariate adjustment, only ACEF-MDRD score and diabetes remained CI-AKI predictors. Areas under the ROC curve of ACEF-MDRD and Mehran scores were 0.733 (0.68-0.78) and 0.649 (0.59-0.70), respectively. When we compared both scores with DeLong test ACEF-MDRDs AUC was greater than Mehran's (P = 0.03). An ACEF-MDRD score of 2.33 or lower has a negative predictive value of 92.6% for development of CI-AKI. ACEF-MDRD score is a user-friendly tool that has an excellent CI-AKI predictive accuracy in patients undergoing primary percutaneous coronary intervention. Moreover, a low ACEF-MDRD score has a very good negative predictive value for CI-AKI, which makes this complication unlikely in patients with an ACEF-MDRD score of <2.33.

6.
Diabetol Metab Syndr ; 9: 67, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28878828

RESUMO

BACKGROUND: Interleukin-6 (IL-6) plays a central role in atherosclerosis and inflammation. It may improve risk prediction in patients at intermediate cardiovascular risk. OBJECTIVE: To analyze the impact of serum IL-6 in predicting early angiographic coronary artery disease in patients at intermediate cardiovascular risk with chest pain. METHODS: In a cross-sectional study, patients referred for coronary angiography due to suspected coronary artery disease (CAD) were included. Coronary artery disease was defined as the presence of at least 30% stenosis in one or more coronary artery. Severity of CAD was classified by the anatomic burden score. Performance of serum IL-6 assay was compared with ACC/AHA atherosclerotic cardiovascular disease (ASCVD) risk score and hs-CRP through receiver operating characteristic (ROC) curves. RESULTS: We have included 48 patients with a mean 10-year ASCVD risk of 10.0 ± 6.8%. The prevalence of CAD was 72.9%. The presence of CAD was associated with higher mean levels of IL-6 (p = 0.025). Patients with CAD had significantly more overweight than subjects without CAD. In 27% of patients, IL-6 was >1.0 pg/mL and 100% of these patients had CAD, while only 64% in those with IL-6 <1.0 pg/mL, corresponding to a positive predictive value of 100% (p = 0.015). The area under the receiver operating characteristic (ROC) curve of IL-6, hs-CRP and ASCVD were respectively 0.72, 0.60 and 0.54. Intermediate risk patients with IL-6 >1.0 pg/mL were further reclassified into ASCVD high risk due to the presence of coronary lesions. CONCLUSION: In intermediate risk patients referred for coronary angiography, a serum IL-6 level above 1 pg/mL is predictive of significant CAD. IL-6 determination may be useful to reclassify ASCVD intermediate risk patients into higher risk categories.

7.
J Invasive Cardiol ; 29(7): E79-E80, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28667809

RESUMO

The clinical course of coronary artery aneurysms after drug-eluting stent implantation is variable. Some aneurysms naturally resolve, but some can lead to complications such as stent thrombosis. In order to avoid such complications, it is important to reduce as much as possible the chance of exposing causal factors, and intravascular imaging may be needed in order to accurately assess the results of stent deployment and apposition. In the presented case, intravascular imaging was shown to be useful in accurately assessing the results of bioresorbable stent deployment and apposition.


Assuntos
Implantes Absorvíveis/efeitos adversos , Aneurisma Coronário/etiologia , Estenose Coronária/cirurgia , Intervenção Coronária Percutânea/efeitos adversos , Complicações Pós-Operatórias , Tecidos Suporte/efeitos adversos , Aneurisma Coronário/diagnóstico , Estenose Coronária/diagnóstico , Vasos Coronários , Humanos , Masculino , Pessoa de Meia-Idade
8.
Arq. bras. cardiol ; 107(3): 207-215, Sept. 2016. tab, graf
Artigo em Inglês | LILACS-Express | ID: lil-796040

RESUMO

Abstract Background: The importance of coronary anatomy in predicting cardiovascular events is well known. The use of traditional anatomical scores in routine angiography, however, has not been incorporated to clinical practice. SYNTAX score (SXscore) is a scoring system that estimates the anatomical extent of coronary artery disease (CAD). Its ability to predict outcomes based on a baseline diagnostic angiography has not been tested to date. Objective: To evaluate the performance of the SXscore in predicting major adverse cardiac events (MACE) in patients referred for diagnostic angiography. Methods: Prospective cohort of 895 patients with suspected CAD referred for elective diagnostic coronary angiography from 2008 to 2011, at a university-affiliated hospital in Brazil. They had their SXscores calculated and were stratified in three categories: no significant CAD (n = 495), SXscoreLOW-INTERMEDIATE: < 23 (n = 346), and SXscoreHIGH: ≥ 23 (n = 54). Primary outcome was a composite of cardiac death, myocardial infarction, and late revascularization. Secondary endpoints were the components of MACE and death from any cause. Results: On average, patients were followed up for 1.8 ± 1.4 years. The primary outcome occurred in 2.2%, 15.3%, and 20.4% in groups with no significant CAD, SXscoreLOW-INTERMEDIATE, and SXscoreHIGH, respectively (p < 0.001). All-cause death was significantly higher in the SXscoreHIGH compared with the 'no significant CAD' group, 16.7% and 3.8% (p < 0.001), respectively. After adjustment for confounding factors, all outcomes remained associated with the SXscore. Conclusions: SXscore independently predicts MACE in patients submitted to diagnostic coronary angiography. Its routine use in this setting could identify patients with worse prognosis.


Resumo Fundamento: A importância da anatomia coronariana na predição de eventos cardiovasculares é bem conhecida. O uso de escores anatômicos tradicionais na cineangiocoronariografia de rotina, entretanto, não foi incorporado à prática clínica. O SYNTAX escore (SXescore) é um sistema de escore que estima a extensão anatômica da doença arterial coronariana (DAC). Sua capacidade para predizer desfechos com base na cineangiocoronariografia diagnóstica de base ainda não foi testada. Objetivo: Avaliar o desempenho do SXescore para predizer eventos cardíacos adversos maiores (MACE) em pacientes encaminhados para cineangiocoronariografia diagnóstica. Métodos: Coorte prospectiva de 895 pacientes com suspeita de DAC encaminhados para cineangiocoronariografia diagnóstica eletiva de 2008 a 2011, em hospital universitário no Brasil. Os pacientes tiveram seus SXescores calculados e foram estratificados em três categorias: 'sem DAC significativa' (n = 495); SXescoreBAIXO-INTERMEDIÁRIO: < 23 (n = 346); e SXescoreALTO: ≥ 23 (n = 54). O desfecho primário foi composto de morte cardíaca, infarto do miocárdio e revascularização tardia. Os desfechos secundários foram MACE e morte por todas as causas. Resultados: Em média, os pacientes foram acompanhados por 1,8 ± 1,4 anos. Desfecho primário ocorreu em 2,2%, 15,3% e 20,4% nos grupos 'sem DAC significativa', SXescoreBAIXO-INTERMEDIÁRIO e SXescoreALTO, respectivamente (p < 0,001). Morte por todas as causas foi significativamente mais frequente no grupo de SXescoreALTO comparado ao grupo 'sem DAC significativa', 16,7% e 3,8% (p < 0,001), respectivamente. Após ajuste para fatores de confusão, todos os desfechos permaneceram associados com o SXescore. Conclusão: O SXescore prediz independentemente MACE em pacientes submetidos a cineangiocoronariografia diagnóstica. Seu uso rotineiro nesse contexto poderia identificar pacientes de pior prognóstico.

9.
Arq Bras Cardiol ; 107(3): 207-215, 2016 Sep.
Artigo em Inglês, Português | MEDLINE | ID: mdl-27509092

RESUMO

Background:: The importance of coronary anatomy in predicting cardiovascular events is well known. The use of traditional anatomical scores in routine angiography, however, has not been incorporated to clinical practice. SYNTAX score (SXscore) is a scoring system that estimates the anatomical extent of coronary artery disease (CAD). Its ability to predict outcomes based on a baseline diagnostic angiography has not been tested to date. Objective:: To evaluate the performance of the SXscore in predicting major adverse cardiac events (MACE) in patients referred for diagnostic angiography. Methods:: Prospective cohort of 895 patients with suspected CAD referred for elective diagnostic coronary angiography from 2008 to 2011, at a university-affiliated hospital in Brazil. They had their SXscores calculated and were stratified in three categories: no significant CAD (n = 495), SXscoreLOW-INTERMEDIATE: < 23 (n = 346), and SXscoreHIGH: ≥ 23 (n = 54). Primary outcome was a composite of cardiac death, myocardial infarction, and late revascularization. Secondary endpoints were the components of MACE and death from any cause. Results:: On average, patients were followed up for 1.8 ± 1.4 years. The primary outcome occurred in 2.2%, 15.3%, and 20.4% in groups with no significant CAD, SXscoreLOW-INTERMEDIATE, and SXscoreHIGH, respectively (p < 0.001). All-cause death was significantly higher in the SXscoreHIGH compared with the 'no significant CAD' group, 16.7% and 3.8% (p < 0.001), respectively. After adjustment for confounding factors, all outcomes remained associated with the SXscore. Conclusions:: SXscore independently predicts MACE in patients submitted to diagnostic coronary angiography. Its routine use in this setting could identify patients with worse prognosis. Fundamento:: A importância da anatomia coronariana na predição de eventos cardiovasculares é bem conhecida. O uso de escores anatômicos tradicionais na cineangiocoronariografia de rotina, entretanto, não foi incorporado à prática clínica. O SYNTAX escore (SXescore) é um sistema de escore que estima a extensão anatômica da doença arterial coronariana (DAC). Sua capacidade para predizer desfechos com base na cineangiocoronariografia diagnóstica de base ainda não foi testada. Objetivo:: Avaliar o desempenho do SXescore para predizer eventos cardíacos adversos maiores (MACE) em pacientes encaminhados para cineangiocoronariografia diagnóstica. Métodos:: Coorte prospectiva de 895 pacientes com suspeita de DAC encaminhados para cineangiocoronariografia diagnóstica eletiva de 2008 a 2011, em hospital universitário no Brasil. Os pacientes tiveram seus SXescores calculados e foram estratificados em três categorias: 'sem DAC significativa' (n = 495); SXescoreBAIXO-INTERMEDIÁRIO: < 23 (n = 346); e SXescoreALTO: ≥ 23 (n = 54). O desfecho primário foi composto de morte cardíaca, infarto do miocárdio e revascularização tardia. Os desfechos secundários foram MACE e morte por todas as causas. Resultados:: Em média, os pacientes foram acompanhados por 1,8 ± 1,4 anos. Desfecho primário ocorreu em 2,2%, 15,3% e 20,4% nos grupos 'sem DAC significativa', SXescoreBAIXO-INTERMEDIÁRIO e SXescoreALTO, respectivamente (p < 0,001). Morte por todas as causas foi significativamente mais frequente no grupo de SXescoreALTO comparado ao grupo 'sem DAC significativa', 16,7% e 3,8% (p < 0,001), respectivamente. Após ajuste para fatores de confusão, todos os desfechos permaneceram associados com o SXescore. Conclusão:: O SXescore prediz independentemente MACE em pacientes submetidos a cineangiocoronariografia diagnóstica. Seu uso rotineiro nesse contexto poderia identificar pacientes de pior prognóstico.


Assuntos
Angiografia Coronária/métodos , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/patologia , Medição de Risco/métodos , Idoso , Brasil , Cineangiografia/métodos , Ponte de Artéria Coronária , Doença da Artéria Coronariana/mortalidade , Doença da Artéria Coronariana/cirurgia , Feminino , Hospitais Universitários , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Intervenção Coronária Percutânea , Valor Preditivo dos Testes , Prognóstico , Estudos Prospectivos , Valores de Referência , Fatores de Risco , Fatores de Tempo
10.
J Interv Cardiol ; 29(5): 447-453, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27377243

RESUMO

OBJECTIVES: We sought to compare 2 contrast-induced nephropathy (CIN) risk prediction models in a validation cohort using a consensus definition. BACKGROUND: Contrast-induced nephropathy (CIN) is independently associated with mortality following percutaneous coronary intervention (PCI). Multiple prediction models for the development of CIN have been published using heterogeneous outcome definitions. METHODS: We analyzed 5,540 patients who underwent PCI from January 2005 to June 2012 at a single academic medical center. The primary outcome was development of CIN, defined as an increase in serum creatinine of ≥0.5 mg/dl or a relative increase of ≥25% from baseline. Receiver operator characteristic (ROC) curves were used to evaluate the discriminatory power of Mehran and WBH prediction models. RESULTS: The mean age of our cohort was 68 ± 12 years. The mean baseline creatinine was 1.2 ± 0.53 mg/dl (eGFR 73 ± 27 ml/min). The mean contrast volume used was 212 ± 92 ml. CIN occurred in 436 patients (7.9%). The Mehran risk score demonstrated better discrimination than the William Beaumont Hospital (WBH) risk score to predict the occurrence of CIN (c statistic: 0.82 vs. 0.73, respectively). Mortality at 30 days was approximately 8 times higher among patients with CIN as compared to those without (14.7% vs. 1.8% P < 0.01). CONCLUSIONS: In an independent validation cohort, the Mehran risk model demonstrates greater discriminatory power than the WBH model in predicting the incidence of CIN. Mortality was significantly higher in patients who developed CIN after PCI.


Assuntos
Meios de Contraste/efeitos adversos , Doença das Coronárias , Nefropatias , Intervenção Coronária Percutânea , Medição de Risco/métodos , Idoso , Idoso de 80 Anos ou mais , Doença das Coronárias/diagnóstico , Doença das Coronárias/epidemiologia , Doença das Coronárias/terapia , Creatinina/análise , Feminino , Humanos , Nefropatias/induzido quimicamente , Nefropatias/diagnóstico , Nefropatias/mortalidade , Masculino , Pessoa de Meia-Idade , Modelos Teóricos , Avaliação de Processos e Resultados (Cuidados de Saúde) , Intervenção Coronária Percutânea/efeitos adversos , Intervenção Coronária Percutânea/métodos , Valor Preditivo dos Testes , Prognóstico , Curva ROC , Fatores de Risco , Estados Unidos/epidemiologia
11.
World J Diabetes ; 6(5): 679-92, 2015 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-26069717

RESUMO

Macro and microvascular disease are the main cause of morbi-mortality in type 1 diabetes (T1DM). Although there is a clear association between endothelial dysfunction and atherosclerosis in type 2 diabetes, a cause-effect relationship is less clear in T1DM. Although endothelial dysfunction (ED) precedes atherosclerosis, it is not clear weather, in recent onset T1DM, it may progress to clinical macrovascular disease. Moreover, endothelial dysfunction may either be reversed spontaneously or in response to intensive glycemic control, long-term exercise training and use of statins. Acute, long-term and post-prandial hyperglycemia as well as duration of diabetes and microalbuminuria are all conditions associated with ED in T1DM. The pathogenesis of endothelial dysfunction is closely related to oxidative-stress. NAD(P)H oxidase over activity induces excessive superoxide production inside the mitochondrial oxidative chain of endothelial cells, thus reducing nitric oxide bioavailability and resulting in peroxynitrite formation, a potent oxidant agent. Moreover, oxidative stress also uncouples endothelial nitric oxide synthase, which becomes dysfunctional, inducing formation of superoxide. Other important mechanisms are the activation of both the polyol and protein kinase C pathways as well as the presence of advanced glycation end-products. Future studies are needed to evaluate the potential clinical applicability of endothelial dysfunction as a marker for early vascular complications in T1DM.

12.
Rev. bras. cardiol. invasiva ; 23(1): 22-27, abr.-jun.2015. tab
Artigo em Português | LILACS, Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: lil-782171

RESUMO

O stent liberador de everolimus XIENCE V® é um stent farmacológico de nova geração que incorpora uma plataforma de cromo-cobalto de baixo perfil (81 m) e um polímero de elevada biocompatibilidade (fluoropolímero), o qual carreia e controla a liberação do fármaco everolimus. Estudos recentes demonstram segurança e eficácia sustentadas do dispositivo XIENCE V® no tratamento de populações da prática clínica. Nosso objetivo foi reportar resultados clínicos de 12 meses do protocolo brasileiro BRAVO. Métodos: O registro BRAVO foi um estudo prospectivo, não randomizado, de braço único, multicêntrico (25centros), que avaliou os resultados clínicos tardios de 535 pacientes minimamente selecionados, tratados com o stent farmacológico XIENCE V®.Resultados: Cerca de 40% dos pacientes tinham diabetes, 25% infarto agudo do miocárdio prévio e 42% apresentaram-se com síndrome coronária aguda. A maioria das lesões (69%) era de elevada complexidade(ACC/AHA tipo B2/C). As médias da extensão e do diâmetro nominais dos stents foram, respectivamente, 19,9 ± 5,3 mm e 3,0 ± 0,4 mm. Os sucessos angiográfico e de procedimento foram de 99,7 e 98%, respectivamente. Aos 12 meses, a taxa cumulativa de eventos cardíacos adversos maiores, disponível em 100% dos pacientes, foi de 5,6% (morte cardíaca: 1,3%; infarto agudo do miocárdio: 3,0%; revascularização da lesão-alvo: 2,2%). Já a trombose de stent ocorreu em cinco pacientes (0,9%), sendo reportada apenas uma ocorrência entre 6 e 12 meses. Conclusões: O stent farmacológico XIENCE V® demonstrou segurança e eficácia sustentadas ao final de 12meses no tratamento de lesões coronárias complexas em pacientes da prática diária...


The Xience VTM everolimus-eluting stents is a new generation drug-eluting stent (DES)that incorporates a low profile cobalt-chromium platform (81 m) and a highly biocompatible polymer(fluoropolymer), which carries and controls the release of everolimus. Recent studies have demonstrated sustained safety and efficacy of the Xience VTM in the treatment of real-world populations. Our aim was to report the clinical results of 12 months of the BRAVO Brazilian protocol. Methods: The BRAVO Registry was a prospective, non-randomized, single-arm, multicenter (25 centers) study that evaluated the late clinical results of 535 minimally selected patients treated with the drug eluting stent Xience VTM in Brazilian daily practice. Results: Overall, 40% of patients had diabetes, 25% prior myocardial infarction, and 42% presented with acute coronary artery syndrome. The majority of lesions (69%) was highly complex (ACC/AHA type B2 or C).The mean length and the nominal stent diameter were 19.9 ± 5.3 mm and 3.0 ± 0.4 mm, respectively.The angiographic and procedural successes were 99.7 and 98%, respectively. At 12 months, the cumulative rate of major adverse cardiac events, available in 100% of patients, was 5.6% (cardiac death: 1.3%; acute myocardial infarction: 3.0%; revascularization of the target lesion: 2.2%). Stent thrombosis occurred in 5 patients (0,9%), and only 1 case was reported between 6 and 12 months. Conclusions: The drug-eluting stent Xience V™ demonstrated sustained safety and efficacy up to 12 months in the treatment of complex coronary lesions in patients from daily practice...


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Doença das Coronárias , Intervenção Coronária Percutânea/métodos , Pacientes , Stents Farmacológicos , Trombose/complicações , Trombose/diagnóstico , Análise Estatística , Estudos Prospectivos , Fatores de Risco , Próteses e Implantes/métodos , Resultado do Tratamento
13.
Diabetol Metab Syndr ; 7: 100, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26753001

RESUMO

UNLABELLED: Insulin resistance is a major component of metabolic syndrome, type 2 Diabetes Mellitus (T2DM) and coronary artery disease (CAD). Although important in T2DM, its role as a predictor of CAD in non-diabetic patients is less studied. In the present study, we aimed to evaluate the association of HOMA-IR with significant CAD, determined by coronary angiography in non-obese, non-T2DM patients. We also evaluate the association between 3 oral glucose tolerance test (OGTT) based insulin sensitivity indexes (Matsuda, STUMVOLL-ISI and OGIS) and CAD. We conducted a cross-sectional study with 54 non-obese, non-diabetic individuals referred for coronary angiography due to suspected CAD. CAD was classified as the "anatomic burden score" corresponding to any stenosis equal or larger than 50 % in diameter on the coronary distribution. Patients without lesions were included in No-CAD group. Patients with at least 1 lesion were included in the CAD group. A 75 g oral glucose tolerance test (OGTT) with measurements of plasma glucose and serum insulin at 0, 30, 60, 90 and 120 min was obtained to calculate insulin sensitivity parameters. HOMA-IR results were ranked and patients were also categorized into insulin resistant (IR) or non-insulin resistant (NIR) if they were respectively above or below the 75th percentile (HOMA-IR > 4.21). The insulin sensitivity tests results were also divided into IR and NIR, respectively below and above each 25th percentile. Chi square was used to study association. Poisson Regression Model was used to compare prevalence ratios between categorized CAD and IR groups. RESULTS: Fifty-four patients were included in the study. There were 26 patients (48 %) with significant CAD. The presence of clinically significant CAD was significant associated with HOMA-IR above p75 (Chi square 4.103, p = 0.0428) and 71 % of patients with HOMA-IR above p75 had significant CAD. Subjects with CAD had increased prevalence ratio of HOMA-IR above p75 compared to subjects without CAD (PR 1.78; 95 % CI 1.079-2.95; p = 0.024). Matsuda index, Stumvoll-ISI and OGIS index were not associated with significant CAD. We concluded that, in patients without diabetes or obesity, in whom a coronary angiography study is indicated, a single determination of HOMA-IR above 4.21 indicates increased risk for clinical significant coronary disease. The same association was not seen with insulin sensitivity indexes such as Matsuda, Stunvoll-ISI or OGIS. These findings support the need for further longitudinal research using HOMA-IR as a predictor of cardiovascular disease.

14.
Rev. bras. cardiol. invasiva ; 23(1): 22-27, 2015. tab
Artigo em Português | Sec. Est. Saúde SP, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: ses-32358

RESUMO

O stent liberador de everolimus XIENCE V® é um stent farmacológico de nova geraçãoque incorpora uma plataforma de cromo-cobalto de baixo perfil (81 μm) e um polímero de elevadabiocompatibilidade (fluoropolímero), o qual carreia e controla a liberação do fármaco everolimus. Estudosrecentes demonstram segurança e eficácia sustentadas do dispositivo XIENCE V® no tratamento depopulações da prática clínica. Nosso objetivo foi reportar resultados clínicos de 12 meses do protocolobrasileiro BRAVO.Métodos: O registro BRAVO foi um estudo prospectivo, não randomizado, de braço único, multicêntrico (25centros), que avaliou os resultados clínicos tardios de 535 pacientes minimamente selecionados, tratadoscom o stent farmacológico XIENCE V®.Resultados: Cerca de 40% dos pacientes tinham diabetes, 25% infarto agudo do miocárdio prévio e 42%apresentaram-se com síndrome coronária aguda. A maioria das lesões (69%) era de elevada complexidade(ACC/AHA tipo B2/C). As médias da extensão e do diâmetro nominais dos stents foram, respectivamente,19,9 ± 5,3 mm e 3,0 ± 0,4 mm. Os sucessos angiográfico e de procedimento foram de 99,7 e 98%,respectivamente. Aos 12 meses, a taxa cumulativa de eventos cardíacos adversos maiores, disponível em100% dos pacientes, foi de 5,6% (morte cardíaca: 1,3%; infarto agudo do miocárdio: 3,0%; revascularizaçãoda lesão-alvo: 2,2%). Já a trombose de stent ocorreu em cinco pacientes (0,9%), sendo reportada apenas umaocorrência entre 6 e 12 meses.Conclusões: O stent farmacológico XIENCE V® demonstrou segurança e eficácia sustentadas ao final de 12meses no tratamento de lesões coronárias complexas em pacientes da prática diária. (AU)


Assuntos
Doença das Coronárias , Intervenção Coronária Percutânea , Stents Farmacológicos
15.
Rev. bras. cardiol. invasiva ; 22(3): 240-244, Jul-Sep/2014. tab, graf
Artigo em Português | LILACS-Express | ID: lil-732791

RESUMO

Introdução: As plaquetas desempenham papel fundamental na fisiopatologia do infarto agudo do miocárdio. Existem evidências de que plaquetas de maior volume apresentem potencial pró- -trombótico aumentado. O objetivo deste estudo foi avaliar se o volume plaquetário médio pode predizer o fluxo coronariano do vaso tratado e os desfechos cardiovasculares adversos em pacientes com infarto do miocárdio com supradesnivelamento do segmento ST submetidos à intervenção coronária percutânea primária. Métodos: Desfecho primário foi considerado como a ocorrência de eventos cardiovasculares adversos (morte, acidente vascular cerebral, infarto agudo do miocárdio, trombose de stent, angina e insuficiência cardíaca classes 3 ou 4) em 30 dias. Desfecho secundário foi avaliado por meio da análise angiográfica do fluxo TIMI pós-procedimento. Resultados: Dos 215 pacientes incluídos no registro de intervenção coronária percutânea primária, 168 (78,6%) tiveram volume plaquetário médio calculado antes do procedimento e foram analisados no presente estudo. Valores do volume plaquetário médio foram estratificados em tercis, sendo considerado um valor elevado > 11 fentolitros (fl). Volume plaquetário médio > 11 fl foi preditor independente de eventos cardiovasculares em 30 dias (p = 0,02). Observou-se que pacientes com fluxo final TIMI zero ou 1 demonstraram ...


Background: Platelets play a key role in the pathophysiology of acute myocardial infarction. There is evidence that higher platelet volumes may have increased prothrombotic potential. The aim of this study was to evaluate whether mean platelet volume can predict culprit coronary vessel flow and adverse cardiovascular outcomes in patients with ST-segment elevation myocardial infarction undergoing primary percutaneous coronary intervention. Methods: Primary endpoint was the composite of adverse cardiovascular events (death, stroke, myocardial infarction, stent thrombosis, class-III or IV angina and heart failure) at 30 days. The secondary endpoint was evaluated by the angiographic TIMI flow grade after the procedure. Results: Of the 215 patients included in the primary percutaneous coronary intervention registry, 168 (78.6%) had their mean platelet volume calculated before the procedure and were analyzed in the present study. Mean platelet volume values were stratified in tertiles, and a high value was considered as > 11 femtoliters (fL). Mean platelet volume > 11 fL was an independent predictor of cardiovascular events at 30 days (p = 0.02). It was observed that patients with final TIMI flow grade zero or 1 showed a trend towards higher mean platelet volume compared with those with final TIMI flow 2 or 3 (11.3 ± 0.9 fL vs. 10.5 ± 1.3 fL; p = 0.06). Conclusions: Baseline mean platelet volume is a simple, useful, and easy to measure marker to predict ...

16.
Catheter Cardiovasc Interv ; 82(3): E200-5, 2013 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-22972629

RESUMO

The present case report refers to the percutaneous treatment of severe left main stem stenosis as a consequence of proliferative in-stent restenosis of left circumflex coronary with retrograde involvement. A reverse mini-crush technique with 2 stents was described.


Assuntos
Angioplastia Coronária com Balão/instrumentação , Angioplastia Coronária com Balão/métodos , Reestenose Coronária/terapia , Estenose Coronária/terapia , Stents , Idoso , Angioplastia Coronária com Balão/efeitos adversos , Angiografia Coronária , Reestenose Coronária/diagnóstico , Reestenose Coronária/etiologia , Estenose Coronária/diagnóstico , Feminino , Humanos , Índice de Gravidade de Doença , Resultado do Tratamento , Ultrassonografia de Intervenção
17.
Am J Cardiovasc Dis ; 2(4): 323-30, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23173107

RESUMO

Excess of adiposity is a risk factor for coronary artery disease, but it remains unclear if the distribution of fat is an effect modifier or if the risk is mediate by hypertension, diabetes and dyslipidemia. We investigated the association of central in addition to general obesity with coronary artery disease (CAD). A case-control study was conducted in 376 patients, aged 40 years or more, with chronic coronary disease, undergoing elective coronary angiography. Excess of adiposity was evaluated by the Body Mass Index (BMI), waist circumference, waist-hip ratio, and neck circumference. Cases (n=155) were patients referred for coronary angiography with at least 50% of coronary stenosis in at least one epicardial vessels or their branches, with diameter greater than 2.5 mm. Controls (n=221) were patients referred for coronary angiography without significant coronary disease. Odds ratios and 95%CI for significant coronary stenosis were calculated using multiple logistic regression, controlling for age, sex, years at school, smoking, hypertension, HDL-cholesterol, diabetes mellitus, and an adiposity index. There was a predominance of men and individuals older than 50 years among cases. The waist-hip ratio increased four times the chance of CAD, even after the control for confounding factors, including BMI. Neck circumference above the 90(th) Percentile doubled the chance of CAD, after adjustment for traditional risk factors. Neck circumference and waist-hip ratio are independent predictors of CAD, even taking into account traditional risk factors for CAD. These findings highlight the need of anthropometric assessment among patients with suspected coronary artery disease.

18.
Cad Saude Publica ; 28(8): 1530-8, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22892972

RESUMO

Obstructive sleep apnea (OSA), a risk factor for coronary artery disease, remains under diagnosed. We investigated if OSA identified by the Berlin Questionnaire (BQ) is associated with the risk of coronary artery disease. Cases were patients referred for elective coronariography. The cases were classified with significant coronary lesions (stenosis ≥ 50% in an epicardial coronary) or without significant coronary lesions. Controls were selected from a population-based sample. Positive BQ results were identified in 135 (41.2%) of 328 cases, in contrast with 151 (34.4%) of 439 control subjects (p = 0.03). In a multinomial logistic analysis, the risk for OSA identified by the BQ was independently associated with coronary artery disease in cases with lesions of at least 50% (OR = 1.53; 95%CI: 1.02-2.30; p = 0.04). The risk from OSA identified by the BQ was higher in younger subjects (40-59 years) (OR = 1.76; 95%CI: 1.05-2.97; p = 0.03) and in women (OR = 3.56; 95%CI: 1.64-7.72; p = 0.001). In conclusion, OSA identified by the BQ greatly increases the risks of coronary artery disease in patients having significant coronary artery lesions indicated by anangiogram, particularly in younger individuals and in women.


Assuntos
Doença da Artéria Coronariana/complicações , Apneia Obstrutiva do Sono/diagnóstico , Inquéritos e Questionários , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Angiografia Coronária , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Distribuição Aleatória , Fatores de Risco , Apneia Obstrutiva do Sono/complicações , Fatores Socioeconômicos
19.
Cad. saúde pública ; 28(8): 1530-1538, ago. 2012. ilus, tab
Artigo em Inglês | LILACS | ID: lil-645551

RESUMO

Obstructive sleep apnea (OSA), a risk factor for coronary artery disease, remains under diagnosed. We investigated if OSA identified by the Berlin Questionnaire (BQ) is associated with the risk of coronary artery disease. Cases were patients referred for elective coronariography. The cases were classified with significant coronary lesions (stenosis > 50% in an epicardial coronary) or without significant coronary lesions. Controls were selected from a population-based sample. Positive BQ results were identified in 135 (41.2%) of 328 cases, in contrast with 151 (34.4%) of 439 control subjects (p = 0.03). In a multinomial logistic analysis, the risk for OSA identified by the BQ was independently associated with coronary artery disease in cases with lesions of at least 50% (OR = 1.53; 95%CI: 1.02-2.30; p = 0.04). The risk from OSA identified by the BQ was higher in younger subjects (40-59 years) (OR = 1.76; 95%CI: 1.05-2.97; p = 0.03) and in women (OR = 3.56; 95%CI: 1.64-7.72; p = 0.001). In conclusion, OSA identified by the BQ greatly increases the risks of coronary artery disease in patients having significant coronary artery lesions indicated by anangiogram, particularly in younger individuals and in women.


Síndrome da apneia obstrutiva do sono (SAOS), fator de risco para doença arterial coronariana, permanece subdiagnosticada. Investigou-se se o risco de SAOS pelo Questionário de Berlim (QB) associa-se com doença arterial coronariana. Casos foram pacientes encaminhados para coronariografia eletiva, classificados em casos com lesão significativa (estenose > 50%) ou sem lesões significativas. Controles foram selecionados em amostra populacional. QB foi positivo em 135 (41,2%) de 328 casos, em contraste com 151 (34,4%) de 439 controles (p = 0,03). Em análise logística multinomial, o risco de SAOS identificado pelo QB associou-se com doença arterial coronariana exclusivamente nos casos com lesões de pelo menos 50% (OR: 1,53; IC95%: 1,02-2,30; p = 0,04). Em indivíduos com lesões significativas, o risco de SAOS pela QB foi maior entre os que têm 40-59 anos (OR: 1,76; IC95%: 1,05-2,97; p = 0,03) e em mulheres (OR: 3,56; IC95%: 1,64-7,72; p = 0,001). Em conclusão, alto risco para a SAOS identificados pela QB associa-se a risco de lesões coronarianas significativas na angiografia, particularmente em indivíduos mais jovens e em mulheres.


Assuntos
Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doença da Artéria Coronariana/complicações , Inquéritos e Questionários , Apneia Obstrutiva do Sono/diagnóstico , Estudos de Casos e Controles , Angiografia Coronária , Modelos Logísticos , Seleção de Pacientes , Distribuição Aleatória , Fatores de Risco , Fatores Socioeconômicos , Apneia Obstrutiva do Sono/complicações
20.
Rev. bras. cardiol. invasiva ; 19(4): 357-366, dez. 2011. tab, graf
Artigo em Português | LILACS | ID: lil-618780

RESUMO

Introdução: A eficácia e a segurança do stent farmacológico (SF) de segunda geração liberador de everolimus XienceTM V (Abbott Vascular, Santa Clara, Estados Unidos) já foram estabelecidas no tratamento de pacientes selecionados com lesões coronárias. No entanto, o impacto do stent Xience TM V em população da prática clínica com lesóes complexas ainda não está totalmente definido. Métodos: O Registro BRAVO foi um estudo prospectivo, não-randomizado, multicêntrico, que avaliou os resultados clínicos tardios de pacientes minimamente selecionados tratados com o SF Xience TM V na prática diária brasileira. No total, foram incluídos 535 pacientes em 25 centros clínicos entre setembro de 2008 e setembro de 2010. Eventos cardíacos adversos maiores (ECAM) foram definidos como morte cardíaca, infarto agudo do miocárdio (IAM) e revascularização do vaso-alvo (RVA). Resultados: A média de idade dos pacientes era de 62,7 + - 11,1 anos 40 dos quais tinham diabetes, 24,9 apresentavam IAM prévio e 41,9 apresentaram-se com síndrome coronária aguda. Cerca de dois terços dos pacientes tinham lesões tipo B2/C e 46,1 trataram a artéria descendente anterior. Implante de múltiplos stents ocorreu em 13,8 dos casos, e o sucesso angiográfico foi > 99. Na fase intra-hospitalar, a taxa de IAM periprocedimento foi de 1,9. Já no seguimento de 6 meses, as taxas cumulativas de óbito cardíaco, IAM e RVA foram de 1,1, 2,2 e 1,3, respectivamente)taxa de ECAM de 4,3). Com relação à trombose de stent (definida de acordo com os critérios do Academic Research Consortium - ARC), foram reportados 4 casos até 6 meses...


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Doença das Coronárias/complicações , Doença das Coronárias/diagnóstico , Stents Farmacológicos , Trombose Coronária/complicações , Trombose Coronária/diagnóstico , Infarto do Miocárdio/complicações , Fatores de Risco
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