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Association between the clinical and demographic characteristics of patients undergoing cataract surgery and their prevalence of conjunctival bacteria.
Journal of Cataract and Refractive Surgery 2021 August 2
PURPOSE: To identify characteristics of patients undergoing cataract surgery associated with pathogenic and antibiotic-resistant conjunctival bacteria.
SETTING: Spanish tertiary hospital.
DESIGN: Retrospective cross-sectional study.
METHODS: Records of consecutive patients undergoing cataract surgery between July 2005 and September 2014, contained data on patient characteristics and conjunctival bacteria systematically identified with preoperative tests and anesthetic evaluation. A multivariate logistic regression associated 12 bacterial groups with every category of 17 characteristics. Odds ratio (OR), 95% CIs expressed colonization risk.
RESULTS: In 14883 patients, categories associated with pathogenic bacteria were age older than 79 years with nonfermentative gram-negative bacilli (NFGNB) (OR 1.74, 1.12-2.71), enterococci (OR 1.90, 1.36-2.65), Enterobacteriaceae (OR 2.17, 1.65-2.87), and Staphylococcus aureus (OR 1.37, 1.16-1.62); obesity with S aureus (OR 1.52, 1.30-1.78), enterococci (OR 1.99, 1.47-2.68), and Enterobacteriaceae (OR 2.17, 1.70-2.77); dacryocystorhinostomy history with S aureus (OR 1.90, 1.48-2.44), Haemophilus spp. (OR 2.06, 1.37-3.11), Streptococcus pneumoniae (OR 3.14, 2.14-4.62), NFGNB (OR 2.23, 1.28-3.88), and enterococci (OR 1.80, 1.16-1.81); diabetes with S aureus (OR 1.27, 1.13-1.44), enterococci (OR 1.49, 1.19-1.87), and Enterobacteriaceae (OR 1.27, 1.04-1.54); smoking habit with Enterobacteriaceae (OR 2.11, 1.56-2.86); autumn with NFGNB (OR 2.0, 1.35-3.0); hot weather with S aureus (OR 1.23, 1.03-1.47); and lung, renal, and some heart insufficiencies with S aureus. Other staphylococci, highly antibiotic-resistant, were associated with old age, obesity, and hot weather.
CONCLUSIONS: Old age, obesity, diabetes, dacryocystorhinostomy history, smoking habit, and autumn and summer seasons increased the prevalence of enterococci, staphylococci, Enterobacteriaceae, and/or NFGNB. Obesity and humid-warm weather are key for choosing a cataract surgery prophylaxis.
SETTING: Spanish tertiary hospital.
DESIGN: Retrospective cross-sectional study.
METHODS: Records of consecutive patients undergoing cataract surgery between July 2005 and September 2014, contained data on patient characteristics and conjunctival bacteria systematically identified with preoperative tests and anesthetic evaluation. A multivariate logistic regression associated 12 bacterial groups with every category of 17 characteristics. Odds ratio (OR), 95% CIs expressed colonization risk.
RESULTS: In 14883 patients, categories associated with pathogenic bacteria were age older than 79 years with nonfermentative gram-negative bacilli (NFGNB) (OR 1.74, 1.12-2.71), enterococci (OR 1.90, 1.36-2.65), Enterobacteriaceae (OR 2.17, 1.65-2.87), and Staphylococcus aureus (OR 1.37, 1.16-1.62); obesity with S aureus (OR 1.52, 1.30-1.78), enterococci (OR 1.99, 1.47-2.68), and Enterobacteriaceae (OR 2.17, 1.70-2.77); dacryocystorhinostomy history with S aureus (OR 1.90, 1.48-2.44), Haemophilus spp. (OR 2.06, 1.37-3.11), Streptococcus pneumoniae (OR 3.14, 2.14-4.62), NFGNB (OR 2.23, 1.28-3.88), and enterococci (OR 1.80, 1.16-1.81); diabetes with S aureus (OR 1.27, 1.13-1.44), enterococci (OR 1.49, 1.19-1.87), and Enterobacteriaceae (OR 1.27, 1.04-1.54); smoking habit with Enterobacteriaceae (OR 2.11, 1.56-2.86); autumn with NFGNB (OR 2.0, 1.35-3.0); hot weather with S aureus (OR 1.23, 1.03-1.47); and lung, renal, and some heart insufficiencies with S aureus. Other staphylococci, highly antibiotic-resistant, were associated with old age, obesity, and hot weather.
CONCLUSIONS: Old age, obesity, diabetes, dacryocystorhinostomy history, smoking habit, and autumn and summer seasons increased the prevalence of enterococci, staphylococci, Enterobacteriaceae, and/or NFGNB. Obesity and humid-warm weather are key for choosing a cataract surgery prophylaxis.
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