proteína c reativa e instabilidade clínica na doença obstrutiva de artérias carótidas c-reactive protein and clinical instability in carotid artery obstructive disease
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Abstract
BACKGROUND: Inflammatory activity in atherosclerosis has been exhaustively studied; however, the relevance of C-reactive protein as a marker of clinical instability in carotid artery obstructive disease has not been well established yet. OBJECTIVE: To identify whether high-sensitivity C-reactive protein serum levels are associated with clinical presentation (stable vs. unstable) of carotid artery severe obstructive disease. METHODS: Seventy consecutive patients underwent carotid endarterectomy based on NASCET or ACST criteria, and were classified according to clinical presentation: group 1 - asymptomatic or with hemispheric symptoms for more than 90 days; group 2 - with hemispheric symptoms for less than 90 days. Blood samples were collected by peripheral vein puncture; high-sensitivity C-reactive protein was dosed by nephelometry and comparison between groups was performed using Student's t test; p < 0.05 was considered significant. RESULTS: Neurological clinical status was considered stable in 28 (40%) patients, whereas 42 (60%) cases were considered unstable. High-sensitivity C-reactive protein levels were significantly higher in clinically unstable patients, when compared with neurologically stable cases (1.54±1.7 vs. 0.67±0.8 mg/dL, respectively; p = 0.006). There was no difference in high-sensitivity C-reactive protein levels, when compared with percentages of angiographic stenosis. CONCLUSIONS: The fact that high levels of high-sensitivity C-reactive protein are associated with unstable carotid plaque, possibly anticipating clinical events, could contribute to redefining indications for cerebrovascular interventions.
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silva2007jornalprotena
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| Authors | ;Daniele de Oliveira Silva;Luciano Cabral Albuquerque;Luciane Barreneche Narvaes;Marco Antônio Goldani;Giuliano Chagas Pereira |
| Journal | medecine et sante tropicales |
| Year | 2007 |
| DOI |
10.1590/S1677-54492007000200006
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