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1.
Ann Cardiol Angeiol (Paris) ; 62(2): 75-81, 2013 Apr.
Artigo em Francês | MEDLINE | ID: mdl-23177059

RESUMO

INTRODUCTION: Iatrogenic complications are defined as adverse drug reactions or complications induced by non-drug interventions, such as cardiac devices or stimulation techniques. Iatrogenic complications occurring during hospital stay are known to be associated with increased hospital length of stay and mortality. Only few data are available on iatrogenic as cause of hospital admission, particularly in coronary care unit. In patient admitted in coronary care unit for iatrogenic, we aimed: (a) to analyse their prevalence, type and characteristics, (b) to analyse their in-hospital length of stay and mortality and (c) to evaluate the predictive factors of severity and mortality. METHODS: From 1st April 2008 to 31 January 2012, all the consecutive admissions caused by iatrogenic complications at the coronary care unit were prospectively included and classified in two groups: (1) pharmacological iatrogenic (beta-blockers, digoxin, calcium channel blockers, cordarone, several antiarrhythmic , anticoagulants, antiplatelets and others), (2) non-pharmacological iatrogenic (pacemaker, cardioverter-defibrillator, radiofrequency, coronary angiography and cardiac surgery including valve surgery). We excluded patients with intentional overdose. We also compared patients according to the severity (group 1: patients who just need a monitoring; and group 2: patients for whom there was invasive procedure or for whom we used vasoactive amine). RESULTS: Among 7244 patients admitted in coronary care unit during the inclusion period, 250 (3.4%) were admitted for iatrogenic complication, 136 in pharmacological group and 114 in non-pharmacological group. In non-pharmacological group, there was more men: 73.7% vs. 47.8% (P < 0.001), patients are younger: 67.3 ± 13.2 vs. 75.4 ± 15.8 (P < 0.001) and are more severe: 80.4% in group 2 vs. 69.4% (P = 0.05). The mortality in this group tends to be more important. According to the severity, there is no difference about drugs: 7.4 ± 3.4 vs. 6.8 ± 2.9 (P = 0.184) and are staying longer in hospital: 4.7 ± 3.2 days vs. 3.4 ± 2.4 (P = 0.009) for coronary care unit length of stay and 15 ± 13.7 vs. 10 ± 9.8 (P = 0.003) for total length of stay. CONCLUSION: Iatrogenic represent a non-negligible cause of admission in coronary care unit, which associated with significant mortality (8.8%) and with a trend toward a higher length of stay. Further studies are needed to determinate the origin of mortality and to better characterize patients at risk of iatrogenic.


Assuntos
Unidades de Cuidados Coronarianos/estatística & dados numéricos , Doença Iatrogênica/epidemiologia , Admissão do Paciente/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Feminino , França/epidemiologia , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Fatores de Risco , Taxa de Sobrevida
2.
Heart ; 97(7): 551-6, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21343169

RESUMO

OBJECTIVE: To examine the influence of obesity on the predictive value of the pro-B-type natriuretic peptide (NT-proBNP) assay in acute myocardial infarction. DESIGN: Prospective observational study. SETTING: All intensive care units in one region of France. Patients 2217 consecutive patients admitted for an acute myocardial infarction matched with respect to age, gender, Killip class and renal function. MAIN OUTCOME MEASURE: Cardiovascular death at one year. RESULTS: There were three groups (according to body mass index (BMI): obese, overweight and normal) of 739 matched patients. Median levels of NT-proBNP were considerably lower in high BMI patients, by about 20% in overweight and by 60% in obese patients, compared with normal BMI patients. An inverse relationship between the propeptide values and BMI was found in the overall study population (r = -0.20, p < 0.0001), and for both genders. In multivariate linear regression, BMI as a continuous variable was a predictor of the log NT-proBNP level, even when adjusted for potential confounders. CV mortality at 1-year follow-up was similar for the three BMI groups (p = 0.691). In multivariate logistic regression analysis, log NT-proBNP predicted mortality in normal (OR (95% CI) 3.48 (2.00 to 6.12)) and overweight (OR (95% CI) 3.96 (1.95 to 8.06)) patients, even when adjusted for confounders (GRACE risk score, left ventricular ejection fraction). However, in obese patients, propeptide levels failed to retain their independent prognostic value (OR (95% CI) 1.34 (0.86 to 2.08)). CONCLUSIONS: In this large population of patients with myocardial infarction, circulating NT-proBNP levels were considerably lower in obese patients; the significance of the propeptide level as an independent prognostic factor is severely compromised.


Assuntos
Infarto do Miocárdio/diagnóstico , Peptídeo Natriurético Encefálico/sangue , Obesidade/complicações , Fragmentos de Peptídeos/sangue , Idoso , Biomarcadores/sangue , Índice de Massa Corporal , Feminino , França/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/sangue , Infarto do Miocárdio/etiologia , Infarto do Miocárdio/mortalidade , Obesidade/sangue , Obesidade/mortalidade , Prognóstico , Estudos Prospectivos , Análise de Sobrevida
3.
Ann Cardiol Angeiol (Paris) ; 60(1): 9-14, 2011 Feb.
Artigo em Francês | MEDLINE | ID: mdl-20723879

RESUMO

INTRODUCTION: Coronary thrombectomy is usually used to treat acute coronary syndrome. Many studies evaluated its benefit in this context however, it is still unknown if coronary characteristics are predictive of success or failure. The aim of our laboratory bench study was to evaluate the impact of angiographic characteristics on the thromboaspiration efficiency. METHODS: Glass tubes of 150 mm in the length were used, with five diameters: 2; 2.6; 3; 3.6 and 4 mm; and for each diameter, three angulations: no angulation; 90° and 120°. Blood sample were taken from healthy subject and thrombi of 3 and 6 hours old were performed, with a constant volume for each test. Thromboaspirations were performed with an Export(®) catheter (Medtronic). The primary endpoint was total thrombectomy. A total of 240 thromboaspirations were performed. RESULTS: A total thrombectomy was obtained for 71.2% of the tests. It was achieved more frequently with the smaller diameter, respectively: 100% for 2 mm, 81.3% for 2.6 mm, 89.6% for 3 mm vs 54.2% for 3.6 mm and 31.3% for 4 mm (P<0.001). No differences were observed between the 2 thrombi ages (73.3% for the 3 hours old thrombi and 69.2% for the 6 hours old thrombi, P = 0.476), nor between the three tube's angulations (77.5% for no angle, 66.3% for 90° and 70.0% for 120°, P = 0.278). RESULTS AND CONCLUSION: This study shows an impact of the coronary diameters on the rate of thromboaspiration success with an Export(®) catheter. Beyond 3 mm of diameter, the rate of success is divided by 2: for diameters less or equal to 3 mm, 90.3% of success vs 42.7% for diameters greater than 3 mm (P<0.001). There is no difference of efficiency between the 3 and 6 hours old thrombi, neither between the tube's angulations. However, this is a preliminary and further works are needed to clarify how to optimize the aspiration and the impact of other catheters.


Assuntos
Sucção/instrumentação , Trombectomia/instrumentação , Trombose/patologia , Trombose/cirurgia , Angiografia , Modelos Anatômicos , Trombose/diagnóstico por imagem , Fatores de Tempo
4.
Atherosclerosis ; 213(2): 616-21, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20947086

RESUMO

BACKGROUND AND AIM: Reactive oxygen species (ROS) play an important role in the pathogenesis of many diseases including cardiovascular diseases. Several methods have been developed for the direct or indirect measurement of oxygen free radical and its by-products. The current study was designed to validate the new free oxygen radicals test (FORT) and to investigate the potential relationships between ROS and clinical or biological factors in male patients with acute myocardial infarction (AMI). METHODS: We analysed FORT values in samples from 66 patients with AMI. RESULTS: FORT values ranged from 324 to 1198 FORT units, with a median value of 581 (494-754) FORT units. In univariate analysis, FORT values were positively related only to LVEF <40% (p=0.005), levels of CRP (r=0.438, p<0.001) and peak CK (r=0.274, p=0.028). Multiple linear regression analysis showed that CRP (p=0.023), LVEF <40% (p<0.001) and the presence of diabetes (p=0.039) were independent predictors of serum FORT values. This statistical model can explain 45% of the variance in FORT values (R(2)=0.45). CONCLUSIONS: The FORT is a simple tool to assess circulating ROS in routine clinical practice. Oxidative conditions such as inflammation and diabetes are the major determinants of FORT values in patients with AMI.


Assuntos
Infarto do Miocárdio/sangue , Estresse Oxidativo , Espécies Reativas de Oxigênio/sangue , Idoso , Radicais Livres/sangue , Humanos , Masculino , Pessoa de Meia-Idade
5.
Ann Cardiol Angeiol (Paris) ; 59 Suppl 2: S47-55, 2010 Dec.
Artigo em Francês | MEDLINE | ID: mdl-21237323

RESUMO

Cardiovascular disease is the leading cause of early death and morbidity in developed countries and is becoming a growing problem in many developing countries. Currently, anti-coagulants play a major role in the management of the acute phase in association or not with reperfusion strategies. The combination of clopidogrel and aspirin, in accordance with the results of large randomized trials, is the treatment of reference. However two new drugs, a thienopyridine (prasugrel), and a cyclo-pentyl-triazolo-pyridine (ticagrelor) have shown their interest in major studies in comparison with clopidogrel. As a result, several effective P2Y12 receptor antagonist anti-platelet agents are now available in the therapeutic arsenal, and the cardiologist have to tailored the best drug scheme according the balance between the risk of hemorrhage and the benefits with regard to the ischemia to determine the optimal prescription for every patient.


Assuntos
Síndrome Coronariana Aguda/tratamento farmacológico , Inibidores da Agregação Plaquetária/uso terapêutico , Adenosina/análogos & derivados , Adenosina/uso terapêutico , Aspirina/uso terapêutico , Ensaios Clínicos como Assunto , Clopidogrel , Humanos , Antagonistas do Receptor Purinérgico P2Y/uso terapêutico , Ticagrelor , Ticlopidina/análogos & derivados , Ticlopidina/uso terapêutico
6.
BMJ ; 338: b1605, 2009 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-19420032

RESUMO

OBJECTIVE: To examine the influence of age on the predictive value of N-terminal pro-brain natriuretic (NT-proBNP) peptide assay in acute myocardial infarction. DESIGN: Prospective observational study. SETTING: All intensive care units in one French region. PARTICIPANTS: 3291 consecutive patients admitted for an acute myocardial infarction, from the RICO survey (a French regional survey for acute myocardial infarction). MAIN OUTCOME MEASURE: Cardiovascular death at 1 year. RESULTS: Among the 3291 participants, mean age was 68 (SD 14) years and 2356 (72%) were men. In the study population, the median NT-proBNP concentration was 1053 (interquartile range 300-3472) pg/ml. Median values for age quarters 1 to 4 were 367 (119-1050), 696 (201-1950), 1536 (534-4146), and 3774 (1168-9724) pg/ml (P<0.001). A multiple linear regression analysis was done to determine the factors associated with the pro-peptide concentrations in the overall population. NT-proBNP was mainly associated with age, left ventricular ejection fraction, creatinine clearance, female sex, hypertension, diabetes, and anterior wall infarction. At one year's follow-up, 384 (12%) patients had died from all causes and 372 (11%) from cardiovascular causes. In multivariate analysis, NT-proBNP remained strongly associated with the outcome, beyond traditional risk factors including creatinine clearance and left ventricular ejection fraction, in each age group except in the youngest one (<54 years) (P=0.29). The addition of NT-proBNP significantly improved the performance of the statistical model in the overall study population (-2log likelihood 3179.58 v 3099.74, P<0.001) and in each age quarter including the upper one (1523.52 v 1495.01, P<0.001).The independent discriminative value of NT-proBNP compared with the GRACE score was tested by a diagonal stratification using the median value of the GRACE score and NT-proBNP in older patients (upper quarter). Such stratification strikingly identified a high risk group-patients from the higher NT-proBNP group and with a high risk score-characterised by a risk of death of almost 50% at one year. CONCLUSIONS: In this large contemporary non-selected cohort of patients with myocardial infarction, NT-proBNP concentration had incremental prognostic value even in the oldest patients, above and beyond the GRACE risk score and traditional biomarkers after acute myocardial infarction. These data further support the potential interest of clinical trials specifically assessing NT-proBNP measurement as a guide to current treatment strategies, as well as novel strategies, in older patients with acute myocardial infarction.


Assuntos
Infarto do Miocárdio/sangue , Peptídeo Natriurético Encefálico/metabolismo , Fragmentos de Peptídeos/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/metabolismo , Doenças Cardiovasculares/mortalidade , Feminino , França , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/mortalidade , Valor Preditivo dos Testes , Prognóstico , Estudos Prospectivos
7.
Rev Med Interne ; 30(12): 1011-9, 2009 Dec.
Artigo em Francês | MEDLINE | ID: mdl-19394720

RESUMO

INTRODUCTION: Endomyocardial fibrosis with apical obliteration is the best known involvement among heart lesions induced by hypereosinophilia. However, hypereosinophilic heart disease may involve all three heart layers, with a polymorphic clinical and echocardiographic presentation. METHODS: Retrospective descriptive study of five patients highlighting the various manifestations of hypereosinophilic heart disease. RESULTS: We report five cases illustrating the variety of hypereosinophilic heart disease and review the pathophysiology of this potentially severe illness: cytotoxicity of eosinophils is mediated by the release of granular proteins that primarily damage the endocardium, leading to thrombosis and embolic complications, then to fibrosis and valvular complications; myocardial involvement may induce a dreadful acute eosinophilic myocarditis; finally, pericardial involvement may cause tamponade. CONCLUSION: These observations highlight the whole spectrum of the heart manifestations of hypereosinophilia, remind that the vital prognosis may be involved in the acute phase and underline that functional prognosis depends on early detection and treatment to reduce the risk of early thromboembolic and late fibrotic complications.


Assuntos
Doenças Cardiovasculares/diagnóstico por imagem , Doenças Cardiovasculares/etiologia , Ecocardiografia , Eosinofilia/complicações , Eosinofilia/diagnóstico por imagem , Adulto , Angiocardiografia , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/fisiopatologia , Eletrocardiografia , Fibrose Endomiocárdica/diagnóstico por imagem , Fibrose Endomiocárdica/etiologia , Eosinofilia/diagnóstico , Eosinofilia/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Miocardite/diagnóstico por imagem , Miocardite/etiologia , Pericardite/diagnóstico por imagem , Pericardite/etiologia , Estudos Retrospectivos , Taquicardia Sinusal/etiologia
8.
Ann Cardiol Angeiol (Paris) ; 57 Suppl 1: 9-15, 2008 Feb.
Artigo em Francês | MEDLINE | ID: mdl-18472028

RESUMO

Cardiovascular disease is one of the major causes of early morbidity and death in the developed world, and is becoming a serious public health concern in many developing countries. Over the last 30 years, in the USA and France, coronary angioplasty has become a standard treatment for stable angina, and this despite the recommendations of Learned Societies concerning the treatment of this condition. Today, 85 % of angioplasty procedures are performed on patients with stable angina. This study presents meta-analyses that compare medical treatment with angioplasty, and examine the impact of these strategies on more specific populations such as the elderly and post-myocardial infarction patients. To our minds, this synthesis seems to be of particular importance as the COURAGE study has rekindled the debate by showing that improvements in medical treatment and way of life reduced mortality and the recurrence of MI at five years, whereas there was no positive impact of an invasive strategy in any of the subgroups. Nevertheless, as a whole, studies on this subject underscore the value of angioplasty in the medium term for symptom relief in the case of ineffective medical treatment, notably during an acute coronary syndrome both in patients under medical treatment and in those who underwent invasive therapy at the initial phase.


Assuntos
Doença das Coronárias/terapia , Angioplastia Coronária com Balão , Fármacos Cardiovasculares/uso terapêutico , Ensaios Clínicos como Assunto , Humanos , Metanálise como Assunto , Infarto do Miocárdio/prevenção & controle , Guias de Prática Clínica como Assunto
9.
Ann Cardiol Angeiol (Paris) ; 56 Suppl 1: S2-7, 2007 Jun.
Artigo em Francês | MEDLINE | ID: mdl-17719353

RESUMO

Epidemiological data concerning acute coronary syndromes in Europe are based on national registries, studies by the European Society of Cardiology within the framework of the EuroHeart Survey and on the study of European population sub-groups in large international cohorts. In this article, recently published studies will be reviewed, and the principal developments in different countries as well as the characteristics and particularities of the most recent epidemiological data will be highlighted. In Europe, the presentation of acute coronary syndromes (ACS) has evolved considerably over the last ten years. This evolution is characterized by a reduction in the proportion of acute coronary syndromes with ST-segment elevation (STEMI) and by ageing populations.


Assuntos
Síndrome Coronariana Aguda/epidemiologia , Síndrome Coronariana Aguda/terapia , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Europa (Continente)/epidemiologia , Feminino , Inquéritos Epidemiológicos , Humanos , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Distribuição por Sexo
10.
Ann Cardiol Angeiol (Paris) ; 56 Suppl 1: S29-35, 2007 Jun.
Artigo em Francês | MEDLINE | ID: mdl-17719355

RESUMO

Cardiovascular disease is the primary cause of early death and morbidity in the industrialized world and is becoming a growing problem in many developing countries. Coagulation inhibitors play a major role in the management of the acute phase of ACS whether in association with reperfusion strategies or not. Currently, and in accordance with the results of major randomised studies, for medium and long-term management, the association of Clopidogrel and aspirin is the treatment of choice. However, despite the recognised benefits of this therapeutic strategy and above all the recommendations of learned societies, which have placed this bi-therapy in class I, according to national and international registries it is still underused. Moreover, all of these registries have confirmed, in the real world, the negative impact of not prescribing this antiplatelet therapy on morbidity and mortality after both ST and non-ST elevation acute coronary syndrome. which shows the difficulty of applying to everyday clinical practice the results of major randomised cohorts.


Assuntos
Síndrome Coronariana Aguda/tratamento farmacológico , Inibidores da Agregação Plaquetária/uso terapêutico , Administração Oral , Aspirina/uso terapêutico , Ensaios Clínicos como Assunto , Clopidogrel , Humanos , Sistema de Registros , Ticlopidina/análogos & derivados , Ticlopidina/uso terapêutico
11.
QJM ; 100(4): 211-6, 2007 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-17434911

RESUMO

BACKGROUND: B-type natriuretic peptide and the N-terminal fragment of its prohormone, N-terminal pro-brain natriuretic peptide (Nt-proBNP), provide valuable prognostic information on short- and long-term mortality in patients with acute coronary syndrome AIM: To investigate the association between plasma NT-proBNP levels and ST-segment resolution (STR) after reperfusion in patients with ST-segment elevation myocardial infarction (STEMI). METHODS: Consecutive patients from the French regional RICO survey with STEMI who were treated by primary PCI or lysis <12 h were included. Blood sample was taken on admission to measure plasma NT-proBNP. Maximal ST segment elevation was measured on the single worst ECG lead before and 90 min after reperfusion. Patients were categorized as STR(-) (<50% STR) or STR(+) (>or=50% STR). RESULTS: Of the 486 patients included, 133 (27%) were STR(-). STR(-) patients had similar cardiovascular risk factors but higher in-hospital mortality (5% vs. 1%, p=0.03) than STR(+) patients. The STR(-) group had higher median (IQR) levels of Nt-proBNP: 938 (211-3272) vs. 533 (169-1471) pg/ml, p=0.003. On multivariate analysis, the highest quartile of Nt-ProBNP, Q waves and lysis were independent risk factors for incomplete STR. DISCUSSION: Our data show a strong association between high levels of Nt-proBNP at admission and incomplete STR, suggesting that Nt-proBNP may be useful for early risk stratification in reperfusion therapy after acute myocardial infarction.


Assuntos
Infarto do Miocárdio/sangue , Peptídeo Natriurético Encefálico/metabolismo , Fragmentos de Peptídeos/metabolismo , Idoso , Biomarcadores/metabolismo , Diagnóstico Precoce , Eletrocardiografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/terapia , Reperfusão Miocárdica/métodos
12.
Heart ; 92(8): 1077-83, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16387830

RESUMO

OBJECTIVE: To determine the prevalence of chronic oral anticoagulant drug treatment (COA) among patients with acute myocardial infarction (AMI) and its impact on management and outcome. METHODS: All patients with ST segment elevation AMI on the RICO (a French regional survey for AMI) database were included in this analysis. COA was defined as continuous use >or= 48 hours before AMI. RESULTS: Among the 2112 patients with ST elevation myocardial infarction (STEMI), 93 (4%) patients were receiving COA. These patients were older and more likely to have a history of hypertension, diabetes and prior myocardial infarction than patients without COA. In addition, fewer patients who received COA underwent reperfusion therapy or received an antiplatelet agent (aspirin/thienopyridines). Moreover, patients receiving COA experienced a higher incidence of in-hospital major adverse events (death, recurrent myocardial infarction or major bleeding, p = 0.005). Multivariate analysis showed that only ejection fraction, current smoking and multiple vessel disease, but not COA, were independent predictive factors for major adverse events. In contrast, COA was an independent predictive factor for heart failure when adjusted for age, diabetes, creatinine clearance, reperfusion, heparin and glycoprotein IIb/IIIa inhibitors (odds ratio 2.06, CI 95% 1.23 to 3.43, p = 0.005). CONCLUSION: In this population based registry, patients with STEMI with prior use of COA constituted a fairly large group (4%) with an overall higher baseline risk profile than that of patients without COA. Fewer in the COA group received reperfusion therapy or aggressive antithrombotic treatment and they experienced more adverse in-hospital outcomes. Thus, further studies are warranted to develop specific management strategies for this high risk group.


Assuntos
Anticoagulantes/efeitos adversos , Fibrinolíticos/uso terapêutico , Infarto do Miocárdio/tratamento farmacológico , Inibidores da Agregação Plaquetária/uso terapêutico , Administração Oral , Idoso , Anticoagulantes/administração & dosagem , Interações Medicamentosas , Feminino , França/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Infarto do Miocárdio/epidemiologia , Reperfusão Miocárdica/estatística & dados numéricos , Prevalência , Prognóstico , Recidiva , Fatores de Risco
13.
Diabetes Metab ; 32 Spec No2: 2S42-7, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17375407

RESUMO

Diabetes is an established major factor of poor prognostis after an acute coronary syndrome. Recent studies have addressed the impact of abnormal glucose metabolism at the acute phase in patients without known diabetes. It has been found that abnormal glycemia regulation is more common than normal regulation in patients presenting with acute coronary syndrome, whatever the method used to evaluate blood glucose metabolism. High blood glucose at admission, whether fasting or not, are associated with worse outcome after an acute coronary syndrome, ie. by increased mortality and development of severe heart failure. The prognosistic value of glycemia is valuable for both short and long term outcomes. Admission glycemia measurement allows therapeutic strategies at the acute phase. Fasting glycemia and oral glucose tolerance test performed during the hospital stay discloses valuable diagnostic information and provide useful tools for secondary prevention. Moreover, fasting glycemia is a more powerful predictor for short term outcome after myocardial infarction than admission glycemia. The mechanisms by which hyperglycemia deteriorates the cardiovascular prognosis, in particular for left ventricular dysfunction, are not fully understood. Stress hyperglycemia may be a marker of extensive cardiac damage, reflecting a surge of stress hormones such as catecholamines and cortisol that participate to insulinresistance and affect fatty acid and glucose homeostasis. Recent findings also argue for a direct deleterious effect of hyperglycemia on myocardium.


Assuntos
Glicemia/metabolismo , Doença das Coronárias/sangue , Angiopatias Diabéticas/sangue , Intolerância à Glucose/sangue , Diabetes Mellitus/sangue , Teste de Tolerância a Glucose , Humanos , Hiperglicemia/sangue
14.
Arch Mal Coeur Vaiss ; 98(11): 1130-6, 2005 Nov.
Artigo em Francês | MEDLINE | ID: mdl-16379110

RESUMO

The aims of this study were to evaluate new tools of risk stratification in an unselected population of myocardial infarction (MI), usable in a pre-hospital situation, and to compare the risk profile of these patients with those of other clinical trials or myocardial infarction registries. The risk scores of death at 30 days (TIMI score and TIMI risk index) based on data available in the context of coronary emergencies, were applied to the population base of the MI observatory of myocardial infarction in the Côte d'Or (RICO). The risk profile was expressed by the smoothed graph of frequency distribution of each score. The TIMI score applied to the RICO population had a high discriminating power (c = 0.80) for mortality whereas TIMI risk index was less powerful (c = 0.57). The risk profile of the RICO population was comparable to that of InTIME II, ASSENT 2 and the NRMI with reperfusion registry. The NRMI without reperfusion and the MAGIC studies had different profiles characterised by a shift in the graph towards high risk patients. The authors conclude that risk stratification scores, like the TIMI score, are valuable tools for early triage in the management of MI patients. The risk profiles allow comparative analysis of risk levels of populations notably with respect to other registries and also with respect to randomised clinical trials.


Assuntos
Infarto do Miocárdio/mortalidade , Medição de Risco , Idoso , Ensaios Clínicos como Assunto , Eletrocardiografia , Serviços Médicos de Emergência , Feminino , França/epidemiologia , Humanos , Masculino , Infarto do Miocárdio/terapia , Estudos Prospectivos , Fatores de Risco , Índice de Gravidade de Doença
16.
Ann Cardiol Angeiol (Paris) ; 54(4): 157-60, 2005 Aug.
Artigo em Francês | MEDLINE | ID: mdl-16104613

RESUMO

The patients presenting acute coronary syndrome with or without ST segment elevation form a heterogeneous population and thus the short and long-term risk of death or recurrent ischemic events can vary considerably. During ACS without ST elevation (unstable angina and non-ST elevation MI), the evaluation of risk is an essential step in the management of such patients, because it determines ulterior strategy. This evaluation is simple and reliable, and is principally based on three scores: the TIMI, the GRACE Score or the PURSUIT. Thanks to this stratification, high and medium-risk patients are able to benefit from early invasive management (stents and anti-GPIIb/IIIa) as recent studies have clearly shown. Even if immediate management of patients with non-ST elevation ACS does not take account of risk stratification, using such information in the medium and long-term does help determine the prognosis. Finally, the risk profile score, whatever the score used is today an essential tool, which helps qualify and especially compare patients included in international clinical studies.


Assuntos
Angina Instável/fisiopatologia , Infarto do Miocárdio/fisiopatologia , Humanos , Prognóstico , Medição de Risco , Fatores de Risco
17.
Arch Mal Coeur Vaiss ; 98(12): 1199-205, 2005 Dec.
Artigo em Francês | MEDLINE | ID: mdl-16435598

RESUMO

The aim of this work is to evaluate the relationship between improvement of regional myocardial function and visual analysis of contrast-enhanced (CE) MRI in patients after acute myocardial infarction. MRI was performed on 19 patients 1 and 11 weeks after a reperfused acute myocardial infarction. Perfusion data (first-pass images [FPI] and delayed CE images) were acquired after an intravenous bolus of gadolinium-DTPA and visually analyzed using a 17 segment model. Each segment was then classified in 3 groups, according to the presence or absence of FPI and CE patterns at baseline study: group 0: normal-appearing segments; group 1: segments with delayed hyper-enhancement but no early hypo-enhancement; group 2: segments with early hypoenhancement. Relative Wall thickening (RWT) was analyzed in each segment and its improvement evaluated in each group. Between first MRI and follow-up study, a significant improvement of RWT occurred in group 1 (mean +/- SD) [from 43.43 +/- 26.59% to 76.71 +/- 47.38%; p = 0.001] but not in group 2 (from 32.73 +/- 25.58% to 39.57 +/- 30.57%; p = NS). In group 0, RWT despite normal value at baseline study exhibited a significant improvement at follow-up (from 65.23 +/- 46.52% to 79.73 +/- 48.46%; p = 0.0015). In conclusion, the combined analysis of early and delayed perfusion abnormalities in MRI in the week following myocardial infarction can predict myocardial viability and allows in the future an evaluation of the efficacy of perfusion therapy.


Assuntos
Imageamento por Ressonância Magnética , Infarto do Miocárdio/diagnóstico , Miocárdio/patologia , Idoso , Angioplastia com Balão/métodos , Meios de Contraste/administração & dosagem , Estudos de Avaliação como Assunto , Feminino , Gadolínio DTPA/administração & dosagem , Humanos , Aumento da Imagem , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/patologia , Infarto do Miocárdio/reabilitação , Infarto do Miocárdio/terapia , Reperfusão Miocárdica/reabilitação , Recuperação de Função Fisiológica , Estudos Retrospectivos
18.
Arch Mal Coeur Vaiss ; 97(3): 195-200, 2004 Mar.
Artigo em Francês | MEDLINE | ID: mdl-15106742

RESUMO

National therapeutic strategies in acute coronary syndromes (ACS) required revaluation, especially with regards to reperfusion. RICO is an observatory of ACS in the Côte d'Or district. Between January 1st 2001 and April 31st 2003, the cases of 706 patients with ACS and persistent ST elevation or appearances of left bundle branch block eligible for revascularisation (admitted < 12 hours after onset of symptoms and no contra-indications to thrombolysis), were reviewed. The number of revascularised patients was 488 (69%) and 218 (31%) were not revascularised. Thrombolysis was the most commonly used method of revascularisation (66%) in this district: 34% underwent primary angioplasty. Multivariate analysis showed only three independent predictive factors of non-reperfusion during the acute phase. They were: age (> or = 75 years) (p < 0.001), left bundle branch block (p = 0.002) and hospital admission > or = 6 hours after onset of symptoms (p < 0.001). These results confirm the utility of developing networks to improve the efficacy of management and reduce the delay before hospital admission. They also identify specific population groups, the elderly for example, who require specific therapeutic strategies for coronary revascularisation in ACS.


Assuntos
Doença das Coronárias/tratamento farmacológico , Eletrocardiografia , Fibrinolíticos/uso terapêutico , Terapia Trombolítica , Doença Aguda , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Angioplastia Coronária com Balão/estatística & dados numéricos , Bloqueio de Ramo/tratamento farmacológico , Bloqueio de Ramo/epidemiologia , Bloqueio de Ramo/fisiopatologia , Bloqueio de Ramo/terapia , Comorbidade , Contraindicações , Doença das Coronárias/epidemiologia , Doença das Coronárias/fisiopatologia , Doença das Coronárias/cirurgia , Doença das Coronárias/terapia , Diagnóstico Precoce , Feminino , França/epidemiologia , Hospitalização , Humanos , Masculino , Revascularização Miocárdica/estatística & dados numéricos , Vigilância da População , Estudos Prospectivos , Fatores de Risco
19.
Cardiology ; 102(1): 37-40, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-14988617

RESUMO

METHODS AND RESULTS: 101 patients hospitalized for acute non-ST-elevation myocardial infarction (NSTEMI) were included in the study. Median N-terminal fragment of the brain natriuretic peptide (BNP) prohormone (Nt-proBNP) plasma level was 136 (40-335) pmol/l. Patients with increasing levels of troponin I [from low (0.1-10 ng/ml), intermediate (10-40 ng/ml) to high (> or =40 ng/ml) levels] had significantly increased levels of Nt-proBNP (p < 0.05). High-risk patients classified by a high PURSUIT score (i.e. supramedian) had significantly increased Nt-proBNP levels compared to patients with low scores (p < 0.001). Moreover, patients with in-hospital events (death, recurrent MI or clinical heart failure: 27%) had significantly increased median levels of Nt-proBNP compared to event-free patients (184 vs. 105 pmol/l, p = 0.02). CONCLUSION: Our data in an unselected population of NSTEMI patients indicate that high levels of circulating Nt-proBNP levels are associated with an increased risk of early cardiovascular events.


Assuntos
Sistema de Condução Cardíaco/fisiopatologia , Infarto do Miocárdio/sangue , Proteínas do Tecido Nervoso/sangue , Fragmentos de Peptídeos/sangue , Idoso , Eletrocardiografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/fisiopatologia , Peptídeo Natriurético Encefálico , Valor Preditivo dos Testes , Estudos Prospectivos , Fatores de Risco
20.
Arch Mal Coeur Vaiss ; 97 Spec No 3: 47-50, 2004 Dec.
Artigo em Francês | MEDLINE | ID: mdl-15666482

RESUMO

Intravenous insulin therapy is used in diabetic patients at the acute phase of coronary syndrome (ACS). However, hyperglycemia in diabetic patients is a powerful predictive factor for patient outcome as it is associated with a doubling of in-hospital mortality and poor long-term prognosis. Recent studies involving non-diabetic patients show that even mild hyperglycemia in the setting of ACS is also a predictive factor of in-hospital mortality. Moreover, the new entity called impaired fasting glucose (IFG) (6.1 to 7 mmol/L) is not only an independent factor of mortality for coronary patients, but very recently has also been associated with a doubling of the risk of in-hospital mortality in the setting of ACS. Admission as well as follow-up glycaemia are fundamental parameters in ACS on the one hand for their prognostic value, and on the other end as a diagnostic tool in determining the presence of diabetes or IFG.


Assuntos
Angina Instável/diagnóstico , Glicemia , Infarto do Miocárdio/sangue , Infarto do Miocárdio/diagnóstico , Doença Aguda , Angina Instável/sangue , Humanos , Valor Preditivo dos Testes , Síndrome
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