%0 Journal Article %T Neumon¨ªa grave por Streptococcus pyogenes: Reporte de un caso Community-acquired pneumonia caused by Streptococcus pyogenes: Report of one case %A Fernando Sald¨ªas P %A Jorge Y¨¢£¿ez V %A Velia Sald¨ªas H %A Orlando D¨ªaz P %J Revista m¨¦dica de Chile %D 2008 %I Sociedad M¨¦dica de Santiago %X During the past two decades there has been a resurgence ofinvasive group A streptococcal (GAS) infection, specially pneumonia and bacteremia. We report a 35 year-old female previously subjected to a thyroidectomy for a thyroid c¨¢ncer, that five days after operation, presented with a severe community-acquired pneumonia caused by Streptococcus pyogenes (Lancefield Group A Streptococcus) that was complicated by acute respiratory failure and septic shock. She was treated with a combination of 3 g/day of cefotaxime and 1.8 g/day of clindamycin with a good clinical response and discharged from the hospital in good conditions. Although this microorganism is an uncommon cause of community-acquired pneumonia, previously healthy individuals may be infected and the clinical course may be fulminant. Patients with invasive GAS infection admitted to ICU have a high mortality rate. Treatment of choice of Group A streptococcal infection is penicillin. However, clindamycin should be added in severe infections . %K Clindamycin %K pneumonia %K bacterial %K Streptococcus pyogenes %U http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872008001200009