Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Filtrar
1.
Trials ; 11: 61, 2010 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-20500832

RESUMEN

BACKGROUND: Statins have been proved to be effective in reduction of mortality and morbidity when started in the early secondary prevention in stabilized patients after acute coronary syndrome (ACS). The safety and efficacy of statin administration directly in the first-line therapy in unstable ACS patients is not clear. The aim of our study was, therefore, to assess the effect of statin treatment initiated immediately at hospital admission of patients with ACS. METHODS: The trial was stopped prematurely after enrollment of one hundred and fifty-six patients with ACS that were randomized at admission to fluvastatin 80 mg (N = 78) or placebo (N = 78). Study medication was administered immediately after randomization and then once daily for 30 days; all patients were then encouraged to continue in open-label statin therapy and at the end of one-year follow-up 75% in the fluvastatin group and 78% in the placebo group were on statin therapy. RESULTS: We did not demonstrate any difference between groups in the level of C-reactive protein, interleukin 6, and pregnancy-associated plasma protein A on Day 2 and Day 30 (primary endpoint). Fluvastatin-therapy, however, significantly reduced one-year occurrence of major adverse cardiovascular events (11.5% vs. 24.4%, odds ratio (OR) 0.40, 95% CI 0.17-0.95, P = 0.038). This difference was caused mainly by reduction of recurrent symptomatic ischemia (7.7% vs. 20.5%, OR 0.32, 95% CI 0.12-0.88, P = 0.037). CONCLUSIONS: This study failed to prove the effect of fluvastatin given as first-line therapy of ACS on serum markers of inflammation and plaque instability. Fluvastatin therapy was, however, safe and it may reduce cardiovascular event rate that supports immediate use of a statin in patients admitted for ACS. TRIAL REGISTRATION: NCT00171275.


Asunto(s)
Síndrome Coronario Agudo/tratamiento farmacológico , Ácidos Grasos Monoinsaturados/administración & dosificación , Inhibidores de Hidroximetilglutaril-CoA Reductasas/administración & dosificación , Indoles/administración & dosificación , Prevención Secundaria/métodos , Síndrome Coronario Agudo/inmunología , Síndrome Coronario Agudo/mortalidad , Anciano , Proteína C-Reactiva/metabolismo , Distribución de Chi-Cuadrado , República Checa , Método Doble Ciego , Esquema de Medicación , Terminación Anticipada de los Ensayos Clínicos , Ácidos Grasos Monoinsaturados/efectos adversos , Femenino , Fluvastatina , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/efectos adversos , Indoles/efectos adversos , Mediadores de Inflamación/sangre , Interleucina-6/sangre , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Admisión del Paciente , Selección de Paciente , Efecto Placebo , Proteína Plasmática A Asociada al Embarazo/metabolismo , Estudios Prospectivos , Medición de Riesgo , Tamaño de la Muestra , Factores de Tiempo , Resultado del Tratamiento
2.
Eur J Heart Fail ; 7(7): 1149-55, 2005 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-15916922

RESUMEN

BACKGROUND: Severe pulmonary hypertension (PH) and increased pulmonary vascular resistance (PVR) are important risk factors that predict early postoperative mortality after orthotopic heart transplantation. The aim of our study was to determine the value of B-type natriuretic peptide (BNP) and big endothelin-1 (big ET1) for prediction of severe PH in heart transplant candidates. METHODS: The study population included 43 potential heart transplant candidates (38 males, mean age 52 +/- 7 years). All underwent repeated right-heart catheterizations (2-5 studies) at an interval of 3-4 months, giving a total of 124 examinations, associated with blood sampling for BNP and big ET1 analysis. Severe PH was defined as the mean pulmonary artery pressure (MPAP) > 40 mmHg. RESULTS: Significantly high PVR (PVR > 3.0 Wood units and TPG > 15 mmHg) was noted on 12 occasions in 10 patients; always in the presence of severe PH. Low BNP levels (<67 pg/ml) ruled out the presence of severe PH with a 100% sensitivity, however, with a low specificity (34%). An increase in plasma BNP > 30 pg/ml (>40% of initial value) in subjects with a previous MPAP< or =40 mmHg detected development of severe PH with a 100% sensitivity and an 80-88% specificity. As a total of 58% of patients presented repeatedly with MPAP< or =40 mmHg, serial BNP testing could reduce the need for hemodynamic studies in this subgroup down to 12-20%. CONCLUSIONS: Serial BNP testing in hemodynamically stable heart transplant candidates with MPAP< or =40 mmHg allows reliable detection of development of severe PH, and may significantly reduce the need for repeated right-heart catheterizations in these patients.


Asunto(s)
Endotelina-1/sangre , Trasplante de Corazón , Hipertensión Pulmonar/sangre , Péptido Natriurético Encefálico/sangre , Adulto , Anciano , Biomarcadores/sangre , Cateterismo Cardíaco , Femenino , Humanos , Hipertensión Pulmonar/fisiopatología , Hipertensión Pulmonar/cirugía , Masculino , Persona de Mediana Edad , Pronóstico , Presión Esfenoidal Pulmonar , Radioinmunoensayo , Estudios Retrospectivos , Índice de Severidad de la Enfermedad
3.
Curr Control Trials Cardiovasc Med ; 6(1): 4, 2005 Mar 24.
Artículo en Inglés | MEDLINE | ID: mdl-15790413

RESUMEN

BACKGROUND: Activation of inflammatory pathways plays an important contributory role in coronary plaque instability and subsequent rupture, which can lead to the development of acute coronary syndrome (ACS). Elevated levels of serum inflammatory markers such as C-reactive protein (CRP) represent independent risk factors for further cardiovascular events. Recent evidence indicates that in addition to lowering cholesterol levels, statins also decrease levels of inflammatory markers. Previous controlled clinical trials reporting the positive effects of statins in participants with ACS were designed for very early secondary prevention. To our knowledge, no controlled trials have evaluated the potential benefits of statin therapy, beginning immediately at the time of hospital admission. A previous pilot study performed by our group focused on early initiation of cerivastatin therapy. We demonstrated a highly significant reduction in levels of inflammatory markers (CRP and interleukin-6). Based on these preliminary findings, we are conducting a clinical trial to evaluate the efficacy of another statin, fluvastatin, as an early intervention in patients with ACS. METHODS: The FACS-trial (Fluvastatin in the therapy of Acute Coronary Syndrome) is a multicenter, randomized, double-blind, placebo-controlled study evaluating the effects of fluvastatin therapy initiated at the time of hospital admission. The study will enroll 1,000 participants admitted to hospital for ACS (both with and without ST elevation). The primary endpoint for the study is the influence of fluvastatin therapy on levels of inflammatory markers (CRP and interleukin-6) and on pregnancy associated plasma protein A (PAPP-A). A combined secondary endpoint is 30-day and one-year occurrence of death, nonfatal myocardial infarction, recurrent symptomatic ischemia, urgent revascularization, and cardiac arrest. CONCLUSION: The primary objective of the FACS trial is to demonstrate that statin therapy, when started immediately after hospital admission for ACS, results in reduction of inflammation and improvement of prognosis. This study may contribute to new knowledge regarding therapeutic strategies for patients suffering from ACS and may offer additional clinical indications for the use of statins.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA