PMID- 22287437 OWN - NLM STAT- MEDLINE DCOM- 20120518 LR - 20160511 IS - 2042-6984 (Electronic) IS - 2042-6976 (Linking) VI - 1 IP - 4 DP - 2011 Jul-Aug TI - What is the origin of Staphylococcus aureus in the early postoperative sinonasal cavity? PG - 308-12 LID - 10.1002/alr.20050 [doi] AB - BACKGROUND: Despite increasing evidence of a role for Staphylococcus aureus (S. aureus) biofilms in chronic rhinosinusitis (CRS), the origin of this organism in the postsurgical sinonasal cavity had been unclear. Recently, we suggested that the increased culture rate of S. aureus following endoscopic sinus surgery (ESS) may be related to biofilm activity. This study, therefore, was designed to evaluate the origin of early postoperative sinonasal S. aureus and assess the early postoperative outcomes in patients culture-positive for this organism. METHODS: Twenty-nine patients undergoing ESS for medically-recalcitrant CRS were prospectively enrolled. A comprehensive intraoperative S. aureus screening protocol was followed for all patients (including swabs for culture and tissue for fluorescence in situ hybridization [FISH] S. aureus biofilm analysis); early postoperative management included endoscopically-guided swabs for culture in all patients. RESULTS: Twenty of 29 (69.0%) patients cultured S. aureus postoperatively, of which 17 of 20 (85.0%) were screen-positive at surgery. Seven of 11 (63.6%) intraoperatively biofilm-positive but culture-negative patients progressed to culture S. aureus post-ESS. S. aureus culture was associated with selected poorer early post-ESS outcomes. CONCLUSION: S. aureus persists in the sinonasal cavity despite ESS. The postoperative culture of sinonasal S. aureus in patients previously biofilm-positive but culture-negative may reflect the dynamic ability of S. aureus to adapt to the surgically-altered microenvironment with subsequent biofilm dispersal and release of planktonic clones. CI - Copyright (c) 2011 American Rhinologic Society-American Academy of Otolaryngic Allergy, LLC. FAU - Jervis-Bardy, Joshua AU - Jervis-Bardy J AD - Department of Surgery-Otorhinolaryngology, Head and Neck Surgery, University of Adelaide and Flinders University, Adelaide, Australia. FAU - Foreman, Andrew AU - Foreman A FAU - Boase, Samuel AU - Boase S FAU - Valentine, Rowan AU - Valentine R FAU - Wormald, Peter-John AU - Wormald PJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110428 PL - United States TA - Int Forum Allergy Rhinol JT - International forum of allergy & rhinology JID - 101550261 SB - IM MH - *Biofilms MH - Chronic Disease MH - Endoscopy MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Middle Aged MH - Paranasal Sinuses/*microbiology MH - Postoperative Complications/*microbiology MH - Prognosis MH - Prospective Studies MH - Rhinitis/*microbiology/surgery MH - Sinusitis/*microbiology/surgery MH - Staphylococcal Infections/*etiology MH - Staphylococcus aureus/isolation & purification EDAT- 2012/01/31 06:00 MHDA- 2012/05/19 06:00 CRDT- 2012/01/31 06:00 PHST- 2010/08/30 00:00 [received] PHST- 2010/12/09 00:00 [revised] PHST- 2011/01/04 00:00 [accepted] PHST- 2012/01/31 06:00 [entrez] PHST- 2012/01/31 06:00 [pubmed] PHST- 2012/05/19 06:00 [medline] AID - 10.1002/alr.20050 [doi] PST - ppublish SO - Int Forum Allergy Rhinol. 2011 Jul-Aug;1(4):308-12. doi: 10.1002/alr.20050. Epub 2011 Apr 28.