Survey ofEscherichia coli septicemia over a six-year period

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access

Abstract

Escherichia coli was the most frequent species isolated from blood cultures in the Hospital Covadonga of Oviedo (Spain) over a six-year period (474 episodes, 15.3 % of the total septicemias and 2.7 episodes per 1,000 patients).Escherichia coli strains were susceptible in >95 % of episodes to cefoxitin, cefotaxime, gentamicin, tobramicin and amikacin. In a series of 72 episodes, microbiological features and host factors were studied. No endemic strains were found. Type 1 fimbria was detected in 73.6% of strains and P-fimbriae in 12.5 %, without correlation between P-fimbria and urinary infection; 84.7 % of the strains were resistant to decomplement human serum; 61.1 % produced aerobactin and 20.8 % were hemolytic. Factors such as age, hospital location, metastatic focus and surgical treatment were significantly correlated with morbidity and mortality. The global mortality rate was 18 %, and in 8.3 % of cases was directly associated with septicemia.