Microbial Etiology and Antibacterial Resistance Patterns of Dacryocystorhinostomy Cases in the North of Iran S

Nemati, Shadman; Mojtahedi, Ali; Montazeri, Sina; Pahlavan, Pegah Alizadeh

doi:10.22159/ajpcr.2018.v11i7.25477

Cited by 1 publication

(4 citation statements)

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“…among our isolates may be linked to the low socioeconomic profile of the patients and poor hygiene habits. Similarly to our results, Nemati et al 18 and Goel et al 19 reported high rates of enteric floral growth among the gram-negative isolates obtained from silicone tubes.…”

Section: Discussionsupporting

confidence: 91%

“…The high prevalence of fungal growth in the studies by Ali et al 12 and Nemati et al 18 might be related to a tropical and moist climate, as the climate is drier in Turkey than South India and the Iranian coast of the Caspian Sea. Increased Enterobacter spp.…”

Section: Discussionmentioning

confidence: 88%

“…Nemati et al 18 included 72 eyes in a study conducted in the Iranian population and reported culture positivity in 66.4% of the tubes. They identified gram-positive agents in 62%, fungi in 48.6%, and gram-negative agents in 20% of the tubes.…”

Section: Discussionmentioning

confidence: 99%

“…Of the antibiotics studied, the highest antibiotic resistance rates were to cefazolin and cloxacillin. 18 …”

Section: Discussionmentioning

confidence: 99%

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The Microbiological Profile of Bicanalicular Silicone Tubes Placed During External Dacryocystorhinostomy

Özcan¹,

Hoşal²,

Gerçeker³

2021

tjo

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Objectives: To identify microbiological growth on bicanalicular silicone tubes (BST) placed during dacryocystorhinostomy (DCR) surgery and to analyze the association between culture results and surgical outcomes and BST removal time. Materials and Methods: A total of 80 lacrimal drainage systems of 68 patients who had external DCR with bicanalicular silicone intubation were included the study. Twenty-five tubes (31.3%) were removed up to 8 weeks, 28 tubes (35.0%) were removed between 9 and 11 weeks, and the remaining 27 tubes (33.7%) were removed 12 weeks or more after surgery. The tubes were transferred to Stuart medium and sent for microbiologic examination. The disc diffusion method was used to determine antibiotic resistance. Results: Culture positivity was observed for 96.2% of the tubes. Among a total of 109 isolates, 63 were gram-positive bacteria (57.8%), 37 were gram-negative bacteria (34%), and 9 were fungi (8.2%). The most commonly isolated gram-positive and gram-negative bacteria were Staphylococcus aureus (66.6%) and Enterobacter spp. (29.7%), respectively. Penicillin, clindamycin, erythromycin, and tetracycline resistances were higher among gram-positive pathogens. Cephalothin, amoxicillin-clavulanic acid, and ampicillin resistances were higher among gram-negative pathogens. There was no significant difference in terms of the microbiological profile between the three groups of removed tubes. Haemophilus influenzae was isolated at a significantly higher rate in patients with surgical failure (p=0.04). Conclusion: Although a variety of agents were isolated from removed BST, gram-positive organisms were more frequent than gramnegatives and fungi. S. aureus and Enterobacter were the most common gram-positive and gram-negative isolates. Later BST removal was associated with the isolation of significantly more bacterial strains per tube. There was no correlation between multiple infections and surgical failure. H. influenzae was more common in failed DCR cases.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

“…Of the antibiotics studied, the highest antibiotic resistance rates were to cefazolin and cloxacillin. 18 …”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations