WFRF:(Sonesson Andreas)
Sökning: WFRF:(Sonesson Andreas) > (2020-2024) > Is a bacterial biof...
Is a bacterial biofilm in the lacrimal sac the cause of chronic refractory dacryocystitis?–A pilot study
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- Sonesson, Andreas (författare)
- Lund University,Lunds universitet,Dermatologi och venereologi, Lund,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Dermatology and Venereology (Lund),Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Skåne University Hospital
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- Baumgarten, Maria (författare)
- Skåne University Hospital
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- Bhongir, Ravi (författare)
- Skåne University Hospital
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- (creator_code:org_t)
- 2024
- 2024
- Engelska 5 s.
- Ingår i: Orbit (London). - 0167-6830. ; 43:2, s. 217-221
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Purpose: A pilot study to identify bacterial biofilm in the lacrimal sacs of patients with chronic dacryocystitis, and in patients with epiphora but without discharge, using scanning electron microscopy. Methods: Five patients: two with nasolacrimal duct obstruction without dacryocystitis, and three with dacryocystitis refractory to antibiotics, underwent external dacryocystorhinostomy. One control patient without infection was included. Bacterial cultures were obtained from the lumen of the lacrimal sac to analyze possible bacterial growth, including antibiotic resistance. Biopsies were taken from all lacrimal sacs and prepared for light and scanning electron microscopy. Results: Scanning electron microscopy of all the lacrimal sac samples revealed structures consistent with bacterial communities and adjacent extracellular material, indicating biofilm formation. This was most prominent in one of the patients with chronic dacryocystitis. Bacteria were found not only on the luminal surface of the sac, but also within the tissue of the sac. Bacterial growth was identified in samples from two patients with chronic dacryocystitis, whereas samples from the other three patients showed no bacterial growth. Conclusion: Lack of patency of the lacrimal duct predisposes to bacterial growth, even in patients with no clinically confirmed infection of the lacrimal sac. The finding of a biofilm in patients with chronic dacryocystitis explains the lack of efficiency of antibiotic treatment at the concentrations used in clinical practice.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Oftalmologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Ophthalmology (hsv//eng)
Nyckelord
- biofilm
- Dacryocystitis
- electron microscopy
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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- Baumgarten, Mari ...
- Bhongir, Ravi
- Engelsberg, Karl
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- MEDICIN OCH HÄLS ...
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- och Oftalmologi
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- Orbit (London)
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- Lunds universitet
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