Abstract:
PURPOSE:To determine the microbial contamination of the irrigating fluids at the time of phacoemulsification after the use of topical povidone-iodine and antibiotics prophylaxis. METHODS:A total of 119 patients undergoing cataract surgery were enrolled in this prospective study. All patients received 5 mg/mL levofloxacin starting from the day prior to surgery and topical and 5% povidone-iodine drops starting from 30 minutes before the surgery. At the end of each surgery, 2 samples of drainage liquids were sterilely collected from the drainage bags (DBL) and from the peristaltic pump single-cassettes (PCL) of the phacoemulsification machine. Search for aerobic and anaerobic bacteria and fungi was performed. RESULTS:Seventy-five patients (31.5%) revealed a growth of at least one microbial species (53 DBL and 22 PCL, 44.5% vs 18.5%; p<0.001). Sixty-six patients (55.5%) had at least one positive intraoperative solution. Overall, 111 microbial strains were collected: 82 (74%) Gram-positive bacteria, 20 (18%) fungi, and 9 (8%) Gram-negative bacteria. Thirteen staphylococcal isolates from PCL, compared with 52 out of DBL (11% vs 43.7%, p<0.001), fungi were essentially isolated from PCL. No significant correlation was found between microbial isolation and risk factors. No postsurgical infective complication occurred in the follow-up. CONCLUSIONS:Evaluation of intraoperative fluids can provide evidence on sources or vehicles of postsurgical infections. Antibiotic prophylaxis and topical povidone-iodine can significantly contribute to minimize the risk of endophthalmitis.
journal_name
Eur J Ophthalmoljournal_title
European journal of ophthalmologyauthors
Balestrazzi A,Malandrini A,Montagnani F,Nguisseu Chegoua GL,Ciompi L,Zanchi A,Tosi GM,Martone GL,Motolese I,Fruschelli Mdoi
10.5301/EJO.2011.8434subject
Has Abstractpub_date
2012-03-01 00:00:00pages
188-94issue
2eissn
1120-6721issn
1724-6016pii
2FE6D032-B9B5-4D5E-AB3A-947614439AF1journal_volume
22pub_type
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journal_title:European journal of ophthalmology
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