Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 62
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
JAMA ; 315(15): 1580-90, 2016 Apr 19.
Artículo en Inglés | MEDLINE | ID: mdl-27039291

RESUMEN

IMPORTANCE: Muscle-related statin intolerance is reported by 5% to 20% of patients. OBJECTIVE: To identify patients with muscle symptoms confirmed by statin rechallenge and compare lipid-lowering efficacy for 2 nonstatin therapies, ezetimibe and evolocumab. DESIGN, SETTING, AND PARTICIPANTS: Two-stage randomized clinical trial including 511 adult patients with uncontrolled low-density lipoprotein cholesterol (LDL-C) levels and history of intolerance to 2 or more statins enrolled in 2013 and 2014 globally. Phase A used a 24-week crossover procedure with atorvastatin or placebo to identify patients having symptoms only with atorvastatin but not placebo. In phase B, after a 2-week washout, patients were randomized to ezetimibe or evolocumab for 24 weeks. INTERVENTIONS: Phase A: atorvastatin (20 mg) vs placebo. Phase B: randomization 2:1 to subcutaneous evolocumab (420 mg monthly) or oral ezetimibe (10 mg daily). MAIN OUTCOME AND MEASURES: Coprimary end points were the mean percent change in LDL-C level from baseline to the mean of weeks 22 and 24 levels and from baseline to week 24 levels. RESULTS: Of the 491 patients who entered phase A (mean age, 60.7 [SD, 10.2] years; 246 women [50.1%]; 170 with coronary heart disease [34.6%]; entry mean LDL-C level, 212.3 [SD, 67.9] mg/dL), muscle symptoms occurred in 209 of 491 (42.6%) while taking atorvastatin but not while taking placebo. Of these, 199 entered phase B, along with 19 who proceeded directly to phase B for elevated creatine kinase (N = 218, with 73 randomized to ezetimibe and 145 to evolocumab; entry mean LDL-C level, 219.9 [SD, 72] mg/dL). For the mean of weeks 22 and 24, LDL-C level with ezetimibe was 183.0 mg/dL; mean percent LDL-C change, -16.7% (95% CI, -20.5% to -12.9%), absolute change, -31.0 mg/dL and with evolocumab was 103.6 mg/dL; mean percent change, -54.5% (95% CI, -57.2% to -51.8%); absolute change, -106.8 mg/dL (P < .001). LDL-C level at week 24 with ezetimibe was 181.5 mg/dL; mean percent change, -16.7% (95% CI, -20.8% to -12.5%); absolute change, -31.2 mg/dL and with evolocumab was 104.1 mg/dL; mean percent change, -52.8% (95% CI, -55.8% to -49.8%); absolute change, -102.9 mg/dL (P < .001). For the mean of weeks 22 and 24, between-group difference in LDL-C was -37.8%; absolute difference, -75.8 mg/dL. For week 24, between-group difference in LDL-C was -36.1%; absolute difference, -71.7 mg/dL. Muscle symptoms were reported in 28.8% of ezetimibe-treated patients and 20.7% of evolocumab-treated patients (log-rank P = .17). Active study drug was stopped for muscle symptoms in 5 of 73 ezetimibe-treated patients (6.8%) and 1 of 145 evolocumab-treated patients (0.7%). CONCLUSIONS AND RELEVANCE: Among patients with statin intolerance related to muscle-related adverse effects, the use of evolocumab compared with ezetimibe resulted in a significantly greater reduction in LDL-C levels after 24 weeks. Further studies are needed to assess long-term efficacy and safety. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT01984424.


Asunto(s)
Anticuerpos Monoclonales/uso terapéutico , Anticolesterolemiantes/uso terapéutico , LDL-Colesterol/sangre , Ezetimiba/uso terapéutico , Hipercolesterolemia/tratamiento farmacológico , Enfermedades Musculares/prevención & control , Adulto , Anticuerpos Monoclonales/efectos adversos , Anticuerpos Monoclonales Humanizados , Anticolesterolemiantes/efectos adversos , Atorvastatina/efectos adversos , Biomarcadores/sangre , Creatina Quinasa/sangre , Estudios Cruzados , Método Doble Ciego , Ezetimiba/efectos adversos , Femenino , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/efectos adversos , Hipercolesterolemia/sangre , Masculino , Persona de Mediana Edad , Enfermedades Musculares/sangre , Enfermedades Musculares/inducido químicamente , Mialgia/sangre , Mialgia/inducido químicamente , Mialgia/prevención & control , Miositis/sangre , Miositis/inducido químicamente , Miositis/prevención & control , Rabdomiólisis/sangre , Rabdomiólisis/inducido químicamente , Rabdomiólisis/prevención & control , Factores de Tiempo
2.
JAMA ; 316(22): 2373-2384, 2016 12 13.
Artículo en Inglés | MEDLINE | ID: mdl-27846344

RESUMEN

Importance: Reducing levels of low-density lipoprotein cholesterol (LDL-C) with intensive statin therapy reduces progression of coronary atherosclerosis in proportion to achieved LDL-C levels. Proprotein convertase subtilisin kexin type 9 (PCSK9) inhibitors produce incremental LDL-C lowering in statin-treated patients; however, the effects of these drugs on coronary atherosclerosis have not been evaluated. Objective: To determine the effects of PCSK9 inhibition with evolocumab on progression of coronary atherosclerosis in statin-treated patients. Design, Setting, and Participants: The GLAGOV multicenter, double-blind, placebo-controlled, randomized clinical trial (enrollment May 3, 2013, to January 12, 2015) conducted at 197 academic and community hospitals in North America, Europe, South America, Asia, Australia, and South Africa and enrolling 968 patients presenting for coronary angiography. Interventions: Participants with angiographic coronary disease were randomized to receive monthly evolocumab (420 mg) (n = 484) or placebo (n = 484) via subcutaneous injection for 76 weeks, in addition to statins. Main Outcomes and Measures: The primary efficacy measure was the nominal change in percent atheroma volume (PAV) from baseline to week 78, measured by serial intravascular ultrasonography (IVUS) imaging. Secondary efficacy measures were nominal change in normalized total atheroma volume (TAV) and percentage of patients demonstrating plaque regression. Safety and tolerability were also evaluated. Results: Among the 968 treated patients (mean age, 59.8 years [SD, 9.2]; 269 [27.8%] women; mean LDL-C level, 92.5 mg/dL [SD, 27.2]), 846 had evaluable imaging at follow-up. Compared with placebo, the evolocumab group achieved lower mean, time-weighted LDL-C levels (93.0 vs 36.6 mg/dL; difference, -56.5 mg/dL [95% CI, -59.7 to -53.4]; P < .001). The primary efficacy parameter, PAV, increased 0.05% with placebo and decreased 0.95% with evolocumab (difference, -1.0% [95% CI, -1.8% to -0.64%]; P < .001). The secondary efficacy parameter, normalized TAV, decreased 0.9 mm3 with placebo and 5.8 mm3 with evolocumab (difference, -4.9 mm3 [95% CI, -7.3 to -2.5]; P < .001). Evolocumab induced plaque regression in a greater percentage of patients than placebo (64.3% vs 47.3%; difference, 17.0% [95% CI, 10.4% to 23.6%]; P < .001 for PAV and 61.5% vs 48.9%; difference, 12.5% [95% CI, 5.9% to 19.2%]; P < .001 for TAV). Conclusions and Relevance: Among patients with angiographic coronary disease treated with statins, addition of evolocumab, compared with placebo, resulted in a greater decrease in PAV after 76 weeks of treatment. Further studies are needed to assess the effects of PCSK9 inhibition on clinical outcomes. Trial Registration: clinicaltrials.gov Identifier: NCT01813422.


Asunto(s)
Anticuerpos Monoclonales/uso terapéutico , LDL-Colesterol/sangre , Enfermedad de la Arteria Coronaria/sangre , Enfermedad de la Arteria Coronaria/tratamiento farmacológico , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Anticuerpos Monoclonales Humanizados , Angiografía Coronaria , Enfermedad de la Arteria Coronaria/diagnóstico por imagen , Progresión de la Enfermedad , Método Doble Ciego , Femenino , Humanos , Inyecciones Subcutáneas , Masculino , Persona de Mediana Edad , Inhibidores de PCSK9 , Efecto Placebo , Placa Aterosclerótica/tratamiento farmacológico , Placa Aterosclerótica/patología , Inducción de Remisión , Factores de Tiempo , Ultrasonografía
3.
Am Heart J ; 169(2): 257-265.e1, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25641535

RESUMEN

BACKGROUND: Circulating levels of cardiac troponin I (cTnI) after ST-segment elevation myocardial infarction (STEMI) are associated with infarct size and chronic left ventricular dysfunction, but the relation to clinical end points and biochemical measures of global cardiac function remains less well defined. METHODS: One thousand sixty-six patients receiving primary percutaneous coronary intervention (PCI) in the PROTECTION AMI trial were studied in a post hoc analysis. Cardiac troponin I was measured at several time points during the index hospitalization, and patients were followed up for 3 months before reassessment including N-terminal pro-B-type natriuretic peptide (NT-proBNP) and left ventricular ejection fraction (LVEF) measurements. RESULTS: The median (quartile 1-3) cTnI levels were 0.4 (0.1-0.4) µg/L at admission, 33.1 (12.8-72.1) µg/L after 16 to 24 hours, and 9.1 (3.9-17.5) µg/L after 70 to 80 hours. In adjusted models, all post-PCI single points, peak, and area under curve were found to be independently associated with clinical events, NT-proBNP >118 pmol/L, or LVEF <40% (P for all <.001). When cTnI was added to a baseline risk model for prediction of clinical events, the C statistic improved from 0.779 to 0.846 (16-24 hours) and 0.859 (70-80 hours). Quantified by integrated discrimination improvement, the addition of cTnI significantly augmented prediction ability (relative integrated discrimination improvement 44%-154%; P for all ≤.001). Consistent improvements in discrimination of NT-proBNP >118 pmol/L and LVEF <40% were observed. CONCLUSIONS: Cardiac troponin I measured after primary PCI for STEMI is independently associated with clinical outcomes and cardiac function through 3-month follow-up. These results suggest that cTnI levels are a useful risk stratification tool in STEMI patients.


Asunto(s)
Infarto del Miocardio , Intervención Coronaria Percutánea/efectos adversos , Complicaciones Posoperatorias , Troponina I/sangre , Disfunción Ventricular Izquierda , Área Bajo la Curva , Angiografía Coronaria , Electrocardiografía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/diagnóstico , Infarto del Miocardio/terapia , Péptido Natriurético Encefálico/sangre , Evaluación de Resultado en la Atención de Salud/métodos , Fragmentos de Péptidos/sangre , Intervención Coronaria Percutánea/métodos , Complicaciones Posoperatorias/sangre , Complicaciones Posoperatorias/diagnóstico , Complicaciones Posoperatorias/fisiopatología , Valor Predictivo de las Pruebas , Pronóstico , Medición de Riesgo/métodos , Volumen Sistólico , Disfunción Ventricular Izquierda/sangre , Disfunción Ventricular Izquierda/diagnóstico , Disfunción Ventricular Izquierda/etiología , Disfunción Ventricular Izquierda/fisiopatología
4.
JAMA ; 311(3): 252-62, 2014 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-24247616

RESUMEN

IMPORTANCE: Secretory phospholipase A2 (sPLA2) generates bioactive phospholipid products implicated in atherosclerosis. The sPLA2 inhibitor varespladib has favorable effects on lipid and inflammatory markers; however, its effect on cardiovascular outcomes is unknown. OBJECTIVE: To determine the effects of sPLA2 inhibition with varespladib on cardiovascular outcomes. DESIGN, SETTING, AND PARTICIPANTS: A double-blind, randomized, multicenter trial at 362 academic and community hospitals in Europe, Australia, New Zealand, India, and North America of 5145 patients randomized within 96 hours of presentation of an acute coronary syndrome (ACS) to either varespladib (n = 2572) or placebo (n = 2573) with enrollment between June 1, 2010, and March 7, 2012 (study termination on March 9, 2012). INTERVENTIONS: Participants were randomized to receive varespladib (500 mg) or placebo daily for 16 weeks, in addition to atorvastatin and other established therapies. MAIN OUTCOMES AND MEASURES: The primary efficacy measure was a composite of cardiovascular mortality, nonfatal myocardial infarction (MI), nonfatal stroke, or unstable angina with evidence of ischemia requiring hospitalization at 16 weeks. Six-month survival status was also evaluated. RESULTS: At a prespecified interim analysis, including 212 primary end point events, the independent data and safety monitoring board recommended termination of the trial for futility and possible harm. The primary end point occurred in 136 patients (6.1%) treated with varespladib compared with 109 patients (5.1%) treated with placebo (hazard ratio [HR], 1.25; 95% CI, 0.97-1.61; log-rank P = .08). Varespladib was associated with a greater risk of MI (78 [3.4%] vs 47 [2.2%]; HR, 1.66; 95% CI, 1.16-2.39; log-rank P = .005). The composite secondary end point of cardiovascular mortality, MI, and stroke was observed in 107 patients (4.6%) in the varespladib group and 79 patients (3.8%) in the placebo group (HR, 1.36; 95% CI, 1.02-1.82; P = .04). CONCLUSIONS AND RELEVANCE: In patients with recent ACS, varespladib did not reduce the risk of recurrent cardiovascular events and significantly increased the risk of MI. The sPLA2 inhibition with varespladib may be harmful and is not a useful strategy to reduce adverse cardiovascular outcomes after ACS. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT01130246.


Asunto(s)
Acetatos/efectos adversos , Acetatos/uso terapéutico , Síndrome Coronario Agudo/tratamiento farmacológico , Indoles/efectos adversos , Indoles/uso terapéutico , Infarto del Miocardio , Fosfolipasas A/antagonistas & inhibidores , Síndrome Coronario Agudo/complicaciones , Anciano , Angina Inestable , Aterosclerosis , Atorvastatina , Método Doble Ciego , Terminación Anticipada de los Ensayos Clínicos , Femenino , Ácidos Heptanoicos/uso terapéutico , Humanos , Cetoácidos , Masculino , Persona de Mediana Edad , Fosfolipasas A2 Secretoras/efectos de los fármacos , Fosfolipasas A2 Secretoras/fisiología , Pirroles/uso terapéutico , Riesgo , Accidente Cerebrovascular , Análisis de Supervivencia , Resultado del Tratamiento
5.
Am Heart J ; 166(3): 597-603, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24016512

RESUMEN

BACKGROUND: Statin therapy is a proven effective treatment of hyperlipidemia. However, a significant number of patients cannot tolerate statins. This study was conducted to review treatment strategies for patients intolerant to statin therapy with a focus on intermittent statin dosing. METHODS AND RESULTS: We performed a retrospective analysis of medical records of 1,605 patients referred to the Cleveland Clinic Preventive Cardiology Section for statin intolerance between January 1995 and March 2010 with at least a 6-month follow-up. The changes in lipid profile, achievement of low-density lipoprotein cholesterol (LDL-C) goals, and statin tolerance rate were analyzed. Most (72.5%) of patients with prior statin intolerance were able to tolerate a statin for the median follow-up time of 31 months. Patients on intermittent statin dosing (n = 149) had significantly lower LDL-C reduction compared with daily dosing group (n = 1,014; 21.3% ± 4.0% vs 27.7% ± 1.4%, P < .04). However, compared with the statin discontinued group (n = 442), they had a significantly higher LDL-C reduction (21.3% ± 4.0% vs 8.3 ± 2.2%, P < .001), and a significantly higher portion achieved their Adult Treatment Panel III goal of LDL-C (61% vs 44%, P < .05). There was a trend toward a decrease in all-cause mortality at 8 years for patients on daily and intermittent statin dosing compared with those who discontinued statin (P = .08). CONCLUSIONS: Most patients with previous statin intolerance can tolerate subsequent trial of statin. A strategy of intermittent statin dosing can be an effective therapeutic option in some patients and may result in reduction in LDL-C and achievement of LDL-C goals.


Asunto(s)
LDL-Colesterol/sangre , Inhibidores de Hidroximetilglutaril-CoA Reductasas/administración & dosificación , Inhibidores de Hidroximetilglutaril-CoA Reductasas/efectos adversos , Hiperlipidemias/tratamiento farmacológico , Cooperación del Paciente/estadística & datos numéricos , Adulto , Anciano , Femenino , Estudios de Seguimiento , Humanos , Hiperlipidemias/mortalidad , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Análisis de Supervivencia , Resultado del Tratamiento
6.
J Am Coll Cardiol ; 81(1): 1-12, 2023 01 03.
Artículo en Inglés | MEDLINE | ID: mdl-36351465

RESUMEN

BACKGROUND: Supplements are commonly used by individuals with indications for lipid-lowering therapy, but evidence of their effectiveness to lower low-density lipoprotein cholesterol (LDL-C) is lacking, particularly when compared with statins. OBJECTIVES: The trial objective was to compare the efficacy of a low-dose statin with placebo and 6 common supplements in impacting lipid and inflammatory biomarkers. METHODS: This was a single-center, prospective, randomized, single-blind clinical trial among adults with no history of atherosclerotic cardiovascular disease (ASCVD), an LDL-C of 70 to 189 mg/dL, and an increased 10-year risk of ASCVD. Participants were randomized to rosuvastatin 5 mg daily, placebo, fish oil, cinnamon, garlic, turmeric, plant sterols, or red yeast rice. The primary endpoint was the percent change in LDL-C from baseline for rosuvastatin 5 mg daily compared with placebo and each supplement after 28 days. The primary endpoint was evaluated in a hierarchical fashion with rosuvastatin first compared with placebo, then each supplement in a prespecified order using analysis of covariance. RESULTS: A total of 190 participants completed the study. The percent LDL-C reduction with rosuvastatin was greater than all supplements and placebo (P < 0.001). The difference in LDL-C reduction with rosuvastatin compared with placebo was -35.2% (95% CI: -41.3% to -29.1%; P < 0.001). None of the dietary supplements demonstrated a significant decrease in LDL-C compared with placebo. Adverse event rates were similar across study groups. CONCLUSIONS: Among individuals with increased 10-year risk for ASCVD, rosuvastatin 5 mg daily lowered LDL-C significantly more than placebo, fish oil, cinnamon, garlic, turmeric, plant sterols, and red yeast rice. (Supplements, Placebo, or Rosuvastatin Study [SPORT]; NCT04846231).


Asunto(s)
Inhibidores de Hidroximetilglutaril-CoA Reductasas , Fitosteroles , Rosuvastatina Cálcica , LDL-Colesterol , Método Simple Ciego , Estudios Prospectivos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Biomarcadores , Suplementos Dietéticos , Aceites de Pescado , Resultado del Tratamiento
7.
Circulation ; 124(14): 1520-6, 2011 Oct 04.
Artículo en Inglés | MEDLINE | ID: mdl-21947293

RESUMEN

BACKGROUND: Abnormal heart rate recovery (HRR) has been shown to predict mortality. Although small studies have found that HRR can be improved with cardiac rehabilitation, it is unknown whether an improvement would affect mortality. The aim of this study was to determine whether HRR could be improved with cardiac rehabilitation and whether it would be predictive of mortality. METHODS AND RESULTS: We evaluated 1070 consecutive patients who underwent exercise stress testing before and after completion of a phase 2 cardiac rehabilitation program. Heart rate recovery, defined as the difference between heart rate at peak exercise and exactly 1 minute into the recovery period, and mortality were followed up as the primary end points. Of 544 patients with abnormal baseline HRR, 225 (41%) had normal HRR after rehabilitation. Of the entire cohort, 197 patients (18%) died. Among patients with an abnormal HRR at baseline, failure to normalize after rehabilitation predicted a higher mortality (P<0.001). After multivariable adjustment, the presence of an abnormal HRR at exit was predictive of death in all patients (hazard ratio, 2.15; 95% confidence interval 1.43-3.25). Patients with abnormal HRR at baseline who normalized afterward had survival rates similar to those of the group with normal HRR at baseline and after cardiac rehabilitation (P=0.143). CONCLUSIONS: Heart rate recovery improved after phase 2 cardiac rehabilitation in the overall cohort. There was a strong association of abnormal HRR at exit with all-cause mortality. Patients with abnormal HRR at baseline who normalized HRR with exercise had a mortality similar to that of individuals with baseline normal HRR.


Asunto(s)
Terapia por Ejercicio , Cardiopatías/rehabilitación , Frecuencia Cardíaca , Antagonistas Adrenérgicos beta/farmacología , Antagonistas Adrenérgicos beta/uso terapéutico , Anciano , Prueba de Esfuerzo , Femenino , Cardiopatías/tratamiento farmacológico , Cardiopatías/mortalidad , Cardiopatías/fisiopatología , Pruebas de Función Cardíaca , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Pronóstico , Modelos de Riesgos Proporcionales , Estudios Retrospectivos
8.
Circulation ; 121(23): 2575-83, 2010 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-20516378

RESUMEN

BACKGROUND: Uncertainty exists about the frequency, correlates, and clinical significance of bleeding with dual antiplatelet therapy (DAPT), particularly over an extended period in a stable population. We sought to determine the frequency and time course of bleeding with DAPT in patients with established vascular disease or risk factors only; identify correlates of bleeding; and determine whether bleeding is associated with mortality. METHODS AND RESULTS: We analyzed 15 603 patients enrolled in the Clopidogrel for High Atherothrombotic Risk and Ischemic Stabilization, Management, and Avoidance (CHARISMA) trial, a double-blind, placebo-controlled, randomized trial comparing long-term clopidogrel 75 mg/d versus placebo; all patients received aspirin (75 to 162 mg) daily. Patients had either established stable vascular disease or multiple risk factors for vascular disease without established disease. Median follow-up was 28 months. Bleeding was assessed with the use of the Global Utilization of Streptokinase and t-PA for Occluded Coronary Arteries (GUSTO) criteria. Severe bleeding occurred in 1.7% of the clopidogrel group versus 1.3% on placebo (P=0.087); moderate bleeding occurred in 2.1% versus 1.3%, respectively (P<0.001). The risk of bleeding was greatest the first year. Patients without moderate or severe bleeding during the first year were no more likely than placebo-treated patients to have bleeding thereafter. The frequency of bleeding was similar in patients with established disease and risk factors only. In multivariable analysis, the relationship between moderate bleeding and all-cause mortality was strong (hazard ratio, 2.55; 95% confidence interval, 1.71 to 3.80; P<0.0001), along with myocardial infarction (hazard ratio, 2.92; 95% confidence interval, 2.04 to 4.18; P<0.0001) and stroke (hazard ratio, 4.20; 95% confidence interval, 3.05 to 5.77; P<0.0001). CONCLUSIONS: In CHARISMA, there was an increased risk of bleeding with long-term clopidogrel. The incremental risk of bleeding was greatest in the first year and similar thereafter. Moderate bleeding was strongly associated with mortality. Clinical Trial Registration- URL: http://www.clinicaltrials.gov. Unique identifier: NCT00050817.


Asunto(s)
Aspirina/administración & dosificación , Hemorragia/inducido químicamente , Isquemia Miocárdica/tratamiento farmacológico , Inhibidores de Agregación Plaquetaria/administración & dosificación , Trombosis/tratamiento farmacológico , Ticlopidina/análogos & derivados , Anciano , Aspirina/efectos adversos , Clopidogrel , Manejo de la Enfermedad , Método Doble Ciego , Quimioterapia Combinada , Femenino , Estudios de Seguimiento , Hemorragia/etiología , Hemorragia/mortalidad , Humanos , Masculino , Persona de Mediana Edad , Isquemia Miocárdica/complicaciones , Inhibidores de Agregación Plaquetaria/efectos adversos , Factores de Riesgo , Tasa de Supervivencia/tendencias , Trombosis/complicaciones , Ticlopidina/administración & dosificación , Ticlopidina/efectos adversos , Enfermedades Vasculares/complicaciones , Enfermedades Vasculares/tratamiento farmacológico
9.
Circulation ; 122(1): 70-9, 2010 Jul 06.
Artículo en Inglés | MEDLINE | ID: mdl-20566956

RESUMEN

BACKGROUND: Recognition of biological patterns holds promise for improved identification of patients at risk for myocardial infarction (MI) and death. We hypothesized that identifying high- and low-risk patterns from a broad spectrum of hematologic phenotypic data related to leukocyte peroxidase-, erythrocyte- and platelet-related parameters may better predict future cardiovascular risk in stable cardiac patients than traditional risk factors alone. METHODS AND RESULTS: Stable patients (n=7369) undergoing elective cardiac evaluation at a tertiary care center were enrolled. A model (PEROX) that predicts incident 1-year death and MI was derived from standard clinical data combined with information captured by a high-throughput peroxidase-based hematology analyzer during performance of a complete blood count with differential. The PEROX model was developed using a random sampling of subjects in a derivation cohort (n=5895) and then independently validated in a nonoverlapping validation cohort (n=1474). Twenty-three high-risk (observed in > or =10% of subjects with events) and 24 low-risk (observed in > or =10% of subjects without events) patterns were identified in the derivation cohort. Erythrocyte- and leukocyte (peroxidase)-derived parameters dominated the variables predicting risk of death, whereas variables in MI risk patterns included traditional cardiac risk factors and elements from all blood cell lineages. Within the validation cohort, the PEROX model demonstrated superior prognostic accuracy (78%) for 1-year risk of death or MI compared with traditional risk factors alone (67%). Furthermore, the PEROX model reclassified 23.5% (P<0.001) of patients to different risk categories for death/MI when added to traditional risk factors. CONCLUSIONS: Comprehensive pattern recognition of high- and low-risk clusters of clinical, biochemical, and hematologic parameters provided incremental prognostic value in stable patients having elective diagnostic cardiac catheterization for 1-year risks of death and MI.


Asunto(s)
Infarto del Miocardio/epidemiología , Peroxidasas/sangre , Anciano , Angioplastia Coronaria con Balón , Enfermedades Cardiovasculares/sangre , Enfermedades Cardiovasculares/enzimología , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/genética , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Hematología/métodos , Humanos , Masculino , Anamnesis , Persona de Mediana Edad , Infarto del Miocardio/sangre , Infarto del Miocardio/enzimología , Infarto del Miocardio/mortalidad , Valor Predictivo de las Pruebas , Pronóstico , Estudios Prospectivos , Reproducibilidad de los Resultados , Factores de Riesgo , Tasa de Supervivencia , Factores de Tiempo , Troponina T/sangre
10.
Am Heart J ; 162(4): 646-53, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21982656

RESUMEN

UNLABELLED: Patients with nondilated (NDCM) or severely dilated cardiomyopathies (SDCM) have been underrepresented in clinical trials of cardiac resynchronization therapy (CRT). We examined changes in left ventricular ejection fraction (LVEF) and survival in patients with NDCM or SDCM compared with those with traditionally studied moderately dilated cardiomyopathy. METHODS: We evaluated 800 consecutive patients undergoing the original implantation of a biventricular pacemaker between January 2004 and August 2007. For inclusion, patients had a baseline and pre-CRT echocardiogram, an LVEF ≤40%, a US social security number, and New York Heart Association class II to IV symptoms on standard medical therapy. Patients with a follow-up echocardiogram >2 months after device implantation were included in an analysis of remodeling. Using multivariate models, the impact of baseline left ventricular end-diastolic diameter (LVEDD) on change in LVEF and all-cause mortality was assessed. RESULTS: A total of 668 patients met inclusion criteria and were included in the assessment of mortality. Four hundred seventy-one had an appropriately timed follow-up echocardiogram and were included in the analysis of remodeling. Patients in all 3 groups realized improvements in LVEF (%) after CRT as follows: NDCM (n = 137; LVEDD ≤5.5 cm) 10.0 ± 12.7, P < .001; moderately dilated cardiomyopathy (n = 233; LVEDD 5.6-6.9 cm) 8.2 ± 11.3, P < .001; and SDCM (n = 101; LVEDD ≥7.0 cm) 5.4 ± 9.4, P < .001. In multivariate analysis, baseline LVEDD was inversely associated with change in LVEF (parameter estimate -3.13 ± 0.56, P < .001) and directly associated with increased all-cause mortality (hazard ratio 1.25 [1.05-1.47] P = .01). CONCLUSION: Patients with NDCM and SDCM experience significant improvements in LVEF after CRT. The degree of baseline left ventricular dilatation before CRT is an important predictor of subsequent changes in LVEF and survival.


Asunto(s)
Terapia de Resincronización Cardíaca , Cardiomiopatía Dilatada/terapia , Anciano , Cardiomiopatía Dilatada/mortalidad , Cardiomiopatía Dilatada/patología , Cardiomiopatía Dilatada/fisiopatología , Femenino , Ventrículos Cardíacos/patología , Humanos , Masculino , Persona de Mediana Edad , Tamaño de los Órganos , Estudios Retrospectivos , Volumen Sistólico , Tasa de Supervivencia
11.
Arterioscler Thromb Vasc Biol ; 30(3): 634-40, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20032289

RESUMEN

OBJECTIVE: The presence of subclinical myocardial necrosis as a prodrome to longer-term adverse cardiac event risk has been debated. The debate has focused predominantly within patients with acute coronary syndrome, and on issues of troponin assay variability and accuracy of detection, rather than on the clinical significance of the presence of subclinical myocardial necrosis (ie, "troponin leak") within stable cardiac patients. Herein, we examine the relationship between different degrees of subclinical myocardial necrosis and long-term adverse clinical outcomes within a stable cardiac patient population with essentially normal renal function. METHODS AND RESULTS: Sequential consenting patients (N=3828; median creatinine clearance, 100 mL/min/1.73m(2)) undergoing elective diagnostic coronary angiography with cardiac troponin I (cTnI) levels below the diagnostic cut-off for defining myocardial infarction (<0.03 ng/mL) were evaluated. The relationship of subclinical myocardial necrosis with incident major adverse cardiovascular events (defined as any death, myocardial infarction, or stroke) over 3-year follow-up was examined. "Probable" (cTnI 0.001-0.008 ng/mL) and "definite" (cTnI 0.009-0.029 ng/mL) subclinical myocardial necrosis were observed frequently within the cohort (34% and 18%, respectively). A linear relationship was observed between the magnitude of subclinical myocardial necrosis and risk of 3-year incident major adverse cardiovascular events, particularly in those with cTnI 0.009 ng/mL or higher (hazard ratio, 3.00; 95% confidence interval, 2.4-3.8), even after adjustment for traditional risk factors, C-reactive protein, and creatinine clearance. The presence of subclinical myocardial necrosis was associated with elevations in acute phase proteins (C-reactive protein, ceruloplasmin; P<0.01 each) and reduction in systemic antioxidant enzyme activities (arylesterase; P<0.01) but showed no significant associations with multiple specific measures of oxidant stress, and showed borderline associations with myeloperoxidase, a marker of leukocyte activation. CONCLUSIONS: In stable cardiology patients, prodromal subclinical myocardial necrosis is associated with substantially higher long-term risk for major adverse cardiovascular events. The underlying mechanisms contributing to this minimal troponin leak phenomenon warrants further investigation.


Asunto(s)
Enfermedades Cardiovasculares/epidemiología , Angiografía Coronaria , Miocardio/patología , Anciano , Proteína C-Reactiva/metabolismo , Hidrolasas de Éster Carboxílico/sangre , Enfermedades Cardiovasculares/sangre , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Necrosis , Factores de Riesgo , Troponina I/sangre
12.
Eur Heart J ; 31(10): 1257-65, 2010 May.
Artículo en Inglés | MEDLINE | ID: mdl-20181681

RESUMEN

AIMS: To develop a risk score to quantify bleeding risk in outpatients with or at risk of atherothrombosis. METHODS AND RESULTS: We studied patients in the REACH Registry, a cohort of 68 236 patients with/at risk of atherothrombosis. The outcome of interest was serious bleeding (non-fatal haemorrhagic stroke or bleeding leading to hospitalization and transfusion) over 2 years. Risk factors for bleeding were assessed using modified regression analysis. Multiple potential scoring systems based on the least complex models were constructed. Competing scores were compared on their discriminative ability via logistic regression. The score was validated externally using the CHARISMA population. From a final cohort of 56 616 patients, 804 (1.42%, 95% confidence interval 1.32-1.52) experienced serious bleeding between baseline and 2 years. A nine-item bleeding risk score (0-23 points) was constructed (age, peripheral arterial disease, congestive heart failure, diabetes, hypertension, smoking, antiplatelets, oral anticoagulants, hypercholesterolaemia). Observed incidence of bleeding at 2 years was: 0.46% (score < or = 6); 0.95% (7-8); 1.25% (9-10); 2.76% (> or = 11). The score's discriminative performance was consistent in CHARISMA and REACH (c-statistics 0.64 and 0.68, respectively); calibration in the CHARISMA population was very good (modified Hosmer-Lemeshow c(2) = 4.74; P = 0.69). CONCLUSION: Bleeding risk increased substantially with a score >10. This score can assist clinicians in predicting the risk of serious bleeding and making decisions on antithrombotic therapy in outpatients.


Asunto(s)
Aterosclerosis/prevención & control , Fibrinolíticos/efectos adversos , Hemorragia/prevención & control , Trombosis/prevención & control , Anciano , Atención Ambulatoria , Aterosclerosis/etiología , Diagnóstico Precoz , Femenino , Hemorragia/inducido químicamente , Humanos , Masculino , Persona de Mediana Edad , Medición de Riesgo , Factores de Riesgo , Trombosis/etiología
14.
Eur Heart J Open ; 1(1): oeab002, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35923169

RESUMEN

Aims: In coronavirus disease 2019 (COVID-19), myocardial injury is associated with systemic inflammation and higher mortality. Our aim was to perform a proof of concept trial with canakinumab, a monoclonal antibody to interleukin-1ß, in patients with COVID-19, myocardial injury, and heightened inflammation. Methods and results: This trial required hospitalization due to COVID-19, elevated troponin, and a C-reactive protein concentration more than 50 mg/L. The primary endpoint was time to clinical improvement at Day 14, defined as either an improvement of two points on a seven-category ordinal scale or discharge from the hospital. The secondary endpoint was mortality at Day 28. Forty-five patients were randomly assigned to canakinumab 600 mg (n = 15), canakinumab 300 mg (n = 14), or placebo (n = 16). There was no difference in time to clinical improvement compared to placebo [recovery rate ratio (RRR) for canakinumab 600 mg 1.15, 95% confidence interval (CI) 0.46-2.91; RRR for canakinumab 300 mg 0.61, 95% CI 0.23-1.64]. At Day 28, 3 (18.8%) of 15 patients had died in the placebo group, compared with 3 (21.4%) of 14 patients with 300 mg canakinumab, and 1 (6.7%) of 15 patients with 600 mg canakinumab. There were no treatment-related deaths, and adverse events were similar between groups. Conclusion: There was no difference in time to clinical improvement at Day 14 in patients treated with canakinumab, and no safety concerns were identified. Future studies could focus on high dose canakinumab in the treatment arm and assess efficacy outcomes at Day 28.

15.
J Lipid Res ; 51(10): 3055-61, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20601648

RESUMEN

Lipoprotein(a) [Lp(a)] has enhanced atherothrombotic properties. The ability of Lp(a) levels to predict adverse cardiovascular outcomes in patients undergoing coronary angiography has not been examined. The relationship between serum Lp(a) levels and both the extent of angiographic disease and 3-year incidence of major adverse cardiovascular events (MACE: death, myocardial infarction, stroke, and coronary revascularization) was investigated in 2,769 patients who underwent coronary angiography [median Lp(a) 16.4 mg/dl, elevated levels (≥30 mg/dl) in 38%]. An elevated Lp(a) was associated with a 2.3-fold [95% confidence interval (CI), 1.7-3.2, P < 0.001] greater likelihood of having a significant angiographic stenosis and 1.5-fold (95 CI, 1.3-1.7, P < 0.001) greater chance of three-vessel disease. Lp(a)≥30 mg/dl was associated with a greater rate of MACE (41.8 vs. 35.8%, P = 0.005), primarily due to a greater need for coronary revascularization (30.9 vs. 26.0%, P = 0.02). A relationship between Lp(a) levels and cardiovascular outcome was observed in patients with an LDL cholesterol (LDL-C) ≥70-100 mg/dl (P = 0.049) and >100 mg/dl (P = 0.02), but not <70 mg/dl (P = 0.77). Polymorphisms of Lp(a) were also associated with both plasma Lp(a) levels and coronary stenosis, but not a greater rate of MACE. Lp(a) levels correlate with the extent of obstructive disease and predict the need for coronary revascularization in subjects with suboptimal LDL-C control. This supports the need to intensify lipid management in patients with elevated Lp(a) levels.


Asunto(s)
Enfermedades Cardiovasculares/tratamiento farmacológico , Enfermedades Cardiovasculares/epidemiología , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Lipoproteína(a)/sangre , Anciano , Enfermedades Cardiovasculares/complicaciones , LDL-Colesterol/sangre , Femenino , Humanos , Masculino , Polimorfismo Genético , Factores de Riesgo
16.
Stroke ; 41(8): 1679-83, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20595658

RESUMEN

BACKGROUND AND PURPOSE: Disabling stroke is costly and considered by some patients a fate worse than death. We aimed to determine whether clopidogrel reduces the rate and functional severity of stroke among high vascular risk patients, including patients with previous transient ischemic attack or ischemic stroke, who were enrolled in the Clopidogrel for High Atherothrombotic Risk and Ischemic Stabilization, Management and Avoidance (CHARISMA) trial. METHODS: We randomly assigned 15,603 high vascular risk patients to receive clopidogrel (75 mg daily) or placebo in addition to background acetylsalicylic acid and followed them for a median of 28 months. The main outcome of this prespecified substudy was the functional severity of stroke outcome events as measured by the modified Rankin Scale (mRS) score at 3 months after the stroke outcome. RESULTS: During follow-up, 436 (2.8%) patients had a definite adjudicated stroke and a follow-up assessment of the mRS at 3 months poststroke, of whom 202 had been randomly assigned clopidogrel and 234 placebo (relative risk reduction 14%, 95% CI: -4% to 29%, P=0.12). There was no significant difference between the mean mRS scores at 3 months after stroke among patients assigned clopidogrel compared with placebo (mean mRS 3.6 [SD 2.4] clopidogrel versus 3.3 [SD 2.1] placebo; P=0.15). There was also no significant difference between the various categories of the mRS score at 3 months after stroke among patients assigned to clopidogrel compared with placebo. Among 4320 patients with a qualifying diagnosis of transient ischemic attack or ischemic stroke, 233 (5.4%) experienced a stroke during follow-up, of whom 103 were randomly assigned clopidogrel and 130 placebo (relative risk reduction 20%, 95% CI: -3% to 38%). There was no significant difference between the mean mRS scores at 3 months after stroke among patients with a qualifying transient ischemic attack or ischemic stroke who were assigned clopidogrel compared with placebo (3.4 [SD 2.1] clopidogrel versus 3.3 [SD 1.9] placebo; P=0.48). CONCLUSIONS: The addition of clopidogrel to acetylsalicylic acid did not significantly alter the rate and functional severity of stroke outcome events among high vascular risk patients enrolled in the CHARISMA trial.


Asunto(s)
Índice de Severidad de la Enfermedad , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/prevención & control , Ticlopidina/análogos & derivados , Aspirina/uso terapéutico , Clopidogrel , Quimioterapia Combinada , Femenino , Humanos , Incidencia , Análisis de Intención de Tratar , Estimación de Kaplan-Meier , Masculino , Inhibidores de Agregación Plaquetaria/uso terapéutico , Factores de Riesgo , Conducta de Reducción del Riesgo , Accidente Cerebrovascular/tratamiento farmacológico , Ticlopidina/uso terapéutico , Resultado del Tratamiento
17.
Arterioscler Thromb Vasc Biol ; 29(9): 1383-91, 2009 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-19542023

RESUMEN

BACKGROUND: We examine the relationship of related posttranslational modification products of arginine methylation and coronary artery disease (CAD) phenotypes. METHODS AND RESULTS: Plasma was isolated from 1011 consecutive consenting subjects undergoing elective diagnostic cardiac catheterization, and future major adverse cardiac events (MACE, including myocardial infarction, stroke, and death) at 3 years were investigated. Plasma levels of asymmetrical dimethylarginine (ADMA, endogenous nitric oxide synthase [NOS] inhibitor), symmetrical dimethylarginine (SDMA, which lacks NOS inhibitory activity), N-mono-methylarginine (MMA, a potent NOS inhibitor), methyl-lysine (Methyl-Lys, an unrelated methylated amino acid), arginine, and its major catabolites (citrulline and ornithine) were quantified simultaneously by stable isotope dilution HPLC with online electrospray ionization tandem mass spectrometry and adjusted for traditional risk factors, C-reactive protein, and estimated creatinine clearance. High SDMA levels (adjusted odds ratio [OR] 1.6, 95%CI, 1.1 to 2.6, P<0.001), low MMA (adjusted OR 0.5, 95%CI 0.4 to 0.8, P=0.007), but not ADMA (adjusted OR 1.3, 95%CI 0.88 to 2.0, P=0.177) were associated with increased prevalence of significantly obstructive CAD. Elevated levels of SDMA (adjusted Hazard Ratio [HR] 2.4, 95%CI 1.2 to 4.6, P=0.009), ADMA (adjusted HR 2.2, 95%CI 1.2 to 4.0, P=0.015), as well as an integrated index of arginine methylation [ArgMI=(ADMA+SDMA)/MMA] (adjusted HR 2.4, 95%CI 1.3 to 4.5, P=0.006) were significant independent predictors of incident MACE. ArgMI was predictive of incident MACE even following adjustments for global arginine bioavailability, particularly within secondary prevention patients. CONCLUSIONS: ADMA, SDMA, and the integrated quantification of arginine methylation (in the form of a methylation index) provided independent risk prediction for both significantly obstructive CAD and incident MACE in stable patients undergoing cardiac evaluation. These results suggest that factors beyond direct NOS inhibition contribute to the clinical associations between methylarginines and CAD outcomes.


Asunto(s)
Arginina/sangre , Enfermedades Cardiovasculares/etiología , Enfermedad de la Arteria Coronaria/sangre , Metabolómica , Óxido Nítrico Sintasa/antagonistas & inhibidores , Procesamiento Proteico-Postraduccional , Anciano , Arginina/análogos & derivados , Biomarcadores/sangre , Proteína C-Reactiva/metabolismo , Enfermedades Cardiovasculares/sangre , Enfermedades Cardiovasculares/mortalidad , Cromatografía Líquida de Alta Presión , Citrulina/sangre , Enfermedad de la Arteria Coronaria/complicaciones , Enfermedad de la Arteria Coronaria/enzimología , Enfermedad de la Arteria Coronaria/mortalidad , Creatinina/sangre , Femenino , Humanos , Lisina/análogos & derivados , Lisina/sangre , Masculino , Metabolómica/métodos , Metilación , Persona de Mediana Edad , Óxido Nítrico Sintasa/metabolismo , Oportunidad Relativa , Ornitina/sangre , Pronóstico , Estudios Prospectivos , Medición de Riesgo , Factores de Riesgo , Espectrometría de Masa por Ionización de Electrospray , Espectrometría de Masas en Tándem , Factores de Tiempo , omega-N-Metilarginina/sangre
18.
Ann Intern Med ; 150(6): 379-86, 2009 Mar 17.
Artículo en Inglés | MEDLINE | ID: mdl-19293071

RESUMEN

BACKGROUND: The optimal aspirin dose for the prevention of cardiovascular events remains controversial. OBJECTIVE: To assess the incidence of and risk factors for adverse clinical outcomes by investigator-determined aspirin dose in a primary prevention trial. DESIGN: Post hoc observational analyses of data from a double-blind, placebo-controlled, randomized trial. SETTING: Outpatient. PATIENTS: 15 595 patients with cardiovascular disease or multiple risk factors. INTERVENTION: Clopidogrel, 75 mg/d, or placebo, with aspirin, 75 to 162 mg/d, as selected by the investigators. MEASUREMENTS: Incidence of the composite outcome of myocardial infarction, stroke, or cardiovascular death (efficacy end point), and incidence of severe or life-threatening bleeding (safety end point), at a median of 28 months (interquartile range, 23 to 31 months) of follow-up. RESULTS: Daily aspirin doses were categorized as less than 100 mg (75 or 81 mg) (n = 7180), 100 mg (n = 4961), and greater than 100 mg (150 or 162 mg) (n = 3454). The hazard of the primary efficacy end point was the same regardless of dose (adjusted hazard ratio, 0.95 [95% CI, 0.80 to 1.13] for 100 mg vs. less than 100 mg, and 1.0 [CI, 0.85 to 1.18] for greater than 100 mg vs. less than 100 mg). The hazard of the primary safety end point also did not depend on dose (adjusted hazard ratio, 0.85 [CI, 0.57 to 1.26] for 100 mg vs. less than 100 mg and 1.05 [CI, 0.74 to 1.48] for greater than 100 mg vs. less than 100 mg). In patients also receiving clopidogrel, daily aspirin doses greater than 100 mg seemed to be non-statistically significantly associated with reduced efficacy (adjusted hazard ratio, 1.16 [CI, 0.93 to 1.44]) and increased harm (adjusted hazard ratio, 1.30 [CI, 0.83 to 2.04]). LIMITATION: The analysis was post hoc, and aspirin use was not randomized or blinded. CONCLUSION: Daily aspirin doses of 100 mg or greater were associated with no clear benefit in patients taking aspirin only and possibly with harm in patients taking clopidogrel. Daily doses of 75 to 81 mg may optimize efficacy and safety for patients requiring aspirin for long-term prevention, especially for those receiving dual antiplatelet therapy. PRIMARY FUNDING SOURCE: None.


Asunto(s)
Aspirina/administración & dosificación , Enfermedades Cardiovasculares/prevención & control , Hemorragia/inducido químicamente , Inhibidores de Agregación Plaquetaria/administración & dosificación , Trombosis/inducido químicamente , Ticlopidina/análogos & derivados , Aspirina/efectos adversos , Clopidogrel , Método Doble Ciego , Quimioterapia Combinada , Femenino , Humanos , Masculino , Persona de Mediana Edad , Observación , Inhibidores de Agregación Plaquetaria/efectos adversos , Prevención Primaria , Estudios Prospectivos , Ensayos Clínicos Controlados Aleatorios como Asunto , Factores de Riesgo , Ticlopidina/administración & dosificación , Ticlopidina/efectos adversos
19.
J Cardiovasc Nurs ; 25(2): 99-105, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20168189

RESUMEN

OBJECTIVE: : To investigate overweight/obese patients (body mass index [BMI], > or =25 kg/m) at entry to a preventive cardiology clinic who had a high school (HS) BMI of 25 kg/m or greater versus those with a BMI of less than 25 kg/m to determine coronary heart disease (CHD) prevalence, all-cause mortality. METHODS: : Patients (n = 4,597) who had a BMI of 25 kg/m or greater at the time of initial visit to the prevention clinic were asked to report their weight at graduation from HS. Patients with BMI of 25 kg/m or greater in HS (n = 1,285) were compared with patients (n = 3,312) with a BMI of less than 25 kg/m in HS. Prevalent CHD was assessed at entry. Patient mortality was assessed using the Social Security Death Index for a maximum of 7 years after the initial visit. RESULTS: : Mean/median values for most CHD risk factors were higher in the group with an HS BMI of 25 kg/m or greater, with the exception of low-density lipoprotein level (120 vs 132 mg/dL; P < .001), Lipoprotein (a) level (16 vs 19 mg/dL; P = .003), and systolic blood pressure (126 vs 128. 3 mm Hg; P < .001). Patients with an HS BMI of 25 kg/m or greater had a higher mean BMI at initial visit (33.9 vs 30.1; P < .001) and hemoglobin A1c (6.8% vs 6.3%; P < .001) and glucose concentrations (93 vs 91 mg/dL; P = .004), with a lower mean high-density lipoprotein level (43.2 vs 46.5 mg/dL; P < .001) as well as greater prevalence of smoking (16.2% vs 11.4%; P < .001), diabetes mellitus (32.4% vs 21.8%; P < .001), CHD (47.1% vs 43%; P = .01), and specifically myocardial infarction (25.8% vs 21.1%; P = .001). Fibrinogen and urine albumin-to-creatinine levels were elevated. After adjusting for risk factors, an HS BMI of 25 kg/m or greater was associated with a 21% higher prevalence of CHD (odds ratio, 1.20; P = .027). However, an HS BMI of 25 kg/m or greater was not a significant predictor of 7-year mortality (hazard ratio, 1.03; P = .84). CONCLUSION: : Patients with an HS BMI of 25 kg/m or greater had more CHD risk factors compared with those with an HS BMI of less than 25 kg/m. Prevalence of CHD was also significantly higher in this group. However, an HS BMI of 25 kg/m or greater was not a significant predictor of mortality.


Asunto(s)
Índice de Masa Corporal , Enfermedades Cardiovasculares/complicaciones , Obesidad/complicaciones , Obesidad/mortalidad , Adolescente , Adulto , Anciano , Enfermedades Cardiovasculares/mortalidad , Bases de Datos Factuales , Femenino , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Ohio/epidemiología , Servicio Ambulatorio en Hospital , Prevalencia , Estudios Prospectivos , Factores de Tiempo
20.
Eur J Prev Cardiol ; 27(10): 1091-1100, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-31744333

RESUMEN

AIM: Remnant cholesterol has been proposed to promote atherosclerotic cardiovascular disease independent of low-density lipoprotein cholesterol, yet the underlying mechanisms are not well understood. We aimed to study the association of remnant cholesterol with coronary atheroma progression and clinical events. METHODS: We analyzed data from 5754 patients with coronary artery disease undergoing serial intravascular ultrasonography who were enrolled in 10 trials examining various medical therapies. Remnant cholesterol was calculated as (non-high-density lipoprotein cholesterol - low-density lipoprotein cholesterol (estimated using the Hopkins-Martin equation)). Changes in percentage atheroma volume and 2-year major adverse cardiovascular events were compared across various levels of remnant cholesterol, and multivariable models were used to assess the independent relationship of remnant cholesterol with changes in percentage atheroma volume. RESULTS: The mean age was 58.1 ± 9.2 years, 28% were women and 96% received a statin. Percentage atheroma volume progression (changes in percentage atheroma volume > 0) occurred in a linear fashion at on-treatment remnant cholesterol levels of 25 mg/dL or greater. The highest on-treatment remnant cholesterol quartile demonstrated greater percentage atheroma volume progression (+0.53 ± 0.26 vs. -0.15 ± 0.25%, P < 0.001) and 2-year major adverse cardiovascular events (23% vs. 14%, log-rank P < 0.001) compared with the lowest. In multivariable analyses, changes in percentage atheroma volume significantly correlated with on-treatment remnant cholesterol (P < 0.001] independent of low-density lipoprotein cholesterol, apolipoprotein B, C-reactive protein, high-density lipoprotein cholesterol levels and clinical risk factors. Changes in percentage atheroma volume also significantly correlated with changes in remnant cholesterol following multivariable adjustment. CONCLUSIONS: In statin-treated patients with atherosclerotic cardiovascular disease, remnant cholesterol was associated with coronary atheroma progression regardless of conventional lipid parameters, C-reactive protein or clinical risk factors. Higher remnant cholesterol levels also correlated with higher major adverse cardiovascular events. These data support further investigations into remnant cholesterol-lowering interventions in statin-treated patients harboring residual atherosclerotic cardiovascular disease risk.


Asunto(s)
Colesterol/sangre , Enfermedad de la Arteria Coronaria/sangre , Vasos Coronarios/diagnóstico por imagen , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Placa Aterosclerótica/sangre , Biomarcadores/sangre , Enfermedad de la Arteria Coronaria/diagnóstico , Enfermedad de la Arteria Coronaria/tratamiento farmacológico , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Placa Aterosclerótica/diagnóstico , Placa Aterosclerótica/tratamiento farmacológico , Ultrasonografía Intervencional
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA