S287 – Microbiological Study of Nosocomial Sinusitis in ICU

Abstract

Objectives 1) Identifying the bacteria causing sinusitis in an intensive care unit (ICU) through the nasal swab and puncture of maxillary sinus. 2) Comparing their results with the cultures and antibiograma. Methods 22 patients in the ICU with uni- or bilateral maxillary sinusitis diagnosed by computed tomography were submitted to nasal swab and puncture of the maxillay sinus. The materials were sent to culture and antibiograma and their results were compared. Results The present study evaluated 22 patients. There was exact correlation among the isolated microbial agent in the swab and in the puncture in 14 of the 22 cases (63%). The prevalence of the aerobic gram negative was: Pseudomonas aeruginosa (29%), Proteus mirabillis (26%) and Acinetobacter baumanni (14%). The antibiograma presented a high index of resistance to the antibiotics used in daily practice. Conclusions The nasal swab was of little value to the diagnosis, while the direct puncture of the maxillary sinus could assess the specific bacterial agents, allowing a right-to-the-point therapeutic. The early and specific treatment decreases the morbi-mortality in these patients.