Phacoemulsificator and sterile drapes contamination during cataract surgery: a microbiological study.

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 Ophthalmol

authors

Balestrazzi A,Malandrini A,Montagnani F,Nguisseu Chegoua GL,Ciompi L,Zanchi A,Tosi GM,Martone GL,Motolese I,Fruschelli M

doi

10.5301/EJO.2011.8434

subject

Has Abstract

pub_date

2012-03-01 00:00:00

pages

188-94

issue

2

eissn

1120-6721

issn

1724-6016

pii

2FE6D032-B9B5-4D5E-AB3A-947614439AF1

journal_volume

22

pub_type

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