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Braz J Otorhinolaryngol. 2010 May-Jun;76(3):321-5.

Comparing different methods used to collect material for a microbiological evaluation of patients with chronic rhinosinusitis.

Abstract

There is still controversy on which is the best method to collect the secretion directly from the middle meatus or maxillary sinus in patients with chronic rhinosinusitis.

AIM:

To evaluate the prevalence of bacteria in patients with chronic rhinosinusitis and compare the suction trap collector to direct aspiration attached to a syringe for the microbiological analysis of these secretions.

MATERIALS AND METHODS:

Prospective study involving 31 patients who underwent endoscopically guided maxillary secretion aspiration by two different methods (aspiration with the collector tube "suction trap" and aspiration with the use of a catheter connected to a syringe), to determine the microbiological diagnosis and to compare the two methods used.

RESULTS:

microorganisms grew samples collected from 55% of the 31 patients. The most frequent bacteria were S. aureus, Pseudomonas aeruginosa and other aerobic Gram-negative bacteria. The results from cultures were similar between the two methods in 71% of patients.

CONCLUSION:

S. aureus, Pseudomonas aeruginosa and other aerobic Gram-negative bacteria make up the main flora in the maxillary sinus of the patients. There was good correlation between the microbiological results obtained by using a catheter attached to a syringe and the "suction trap" nasal collector.

PMID:
20658011
[Indexed for MEDLINE]
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