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2.
J Am Soc Echocardiogr ; 14(4): 303-4, 2001 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11287894

RESUMO

Isolated clefting of the posterior mitral valve leaflet is an uncommon congenital malformation. We report a case of cleft posterior mitral valve leaflet with counterclockwise papillary muscle malrotation. Similar abnormalities in papillary muscle position have been described in association with atrioventricular septal defect but have not been previously reported accompanying isolated clefting of the posterior mitral valve leaflet.


Assuntos
Valva Mitral/anormalidades , Músculos Papilares/anormalidades , Idoso , Ecocardiografia , Humanos , Masculino , Valva Mitral/diagnóstico por imagem , Músculos Papilares/diagnóstico por imagem
3.
Am Heart J ; 141(3): 342-7, 2001 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-11231429

RESUMO

BACKGROUND: As a class, statins are remarkably effective in reducing low-density lipoprotein (LDL) cholesterol, and several of these drugs have now been shown to reduce coronary heart disease morbidity and mortality. However, several important controversies in the use of statins remain to be answered by clinical trials. For example, it is controversial whether marked cholesterol reduction to levels below 100 mg/dL would further reduce the incidence of coronary heart disease. Furthermore, concerns about differences among statins for nonlipid effects has raised the concern that the assumption of a class effect is premature until head-to-head clinical trials are completed. METHODS: Arterial Biology for the Investigation for the Treatment Effects of Reducing Cholesterol (ARBITER) is a single-center, randomized, active-controlled study comparing the efficacy of high-dose atorvastatin (80 mg/d) and pravastatin (40 mg/d) in patients being treated for either the primary or secondary prevention of coronary heart disease. This trial will enroll up to 200 patients for the primary end point of the mean change in intima-media thickness of the common carotid artery. This effect will be evaluated over a treatment duration of 12 months. Secondary end points include the effects of statin therapy on inflammatory and hemostatic markers (C-reactive protein and fibrinogen). CONCLUSION: ARBITER will provide important data on the role of marked LDL reduction and the "class effect" theory of statin therapy in cardiovascular medicine.


Assuntos
Artéria Carótida Primitiva/patologia , Doença das Coronárias/patologia , Ácidos Heptanoicos/farmacologia , Hidroximetilglutaril-CoA Redutases/farmacologia , Pravastatina/farmacologia , Pirróis/farmacologia , Túnica Íntima/patologia , Túnica Média/patologia , Atorvastatina , Artéria Carótida Primitiva/efeitos dos fármacos , LDL-Colesterol/análise , Doença das Coronárias/tratamento farmacológico , Ácidos Heptanoicos/uso terapêutico , Humanos , Hidroximetilglutaril-CoA Redutases/uso terapêutico , Pravastatina/uso terapêutico , Pirróis/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto , Projetos de Pesquisa , Túnica Íntima/efeitos dos fármacos , Túnica Média/efeitos dos fármacos
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