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Acar Eser N, Ceylanoglu KS, Malkoc Sen E, Evren E. The influence of microorganisms on early relapses after external dacryocystorhinostomy. Int Ophthalmol 2023:10.1007/s10792-023-02709-y. [PMID: 37081132 DOI: 10.1007/s10792-023-02709-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/09/2023] [Indexed: 04/22/2023]
Abstract
PURPOSE Understanding the influence of microorganisms in patients with acquired nasolacrimal duct obstruction (NLDO) and investigating their effect on recurrence after external dacryocystorhinostomy (DCR). METHODS This prospective study included 50 patients. Evaluations were made before, on the first postoperative day and monthly after DCR. Nasolacrimal silicon tubes (NST) were removed after three months. Before the DCR, swab samples were taken from both hands and lower conjunctival fornices and from the lacrimal sac during the first DCR and from the relapsed cases during the second DCR. RESULTS Growth was observed in 90 (45%) cultures out of 200 and a total of 23 different strains were identified altogether. Staphylococcus aureus (40%) and Streptococcus pneumoniae (28%) were dominantly isolated which were all resistant to penicillin, tetracycline and erythromycin. Lacrimal syringing (LS) was successful in patients (100%) on the first postoperative day. After three months, before NST removal, purulent discharge from the punctum was observed in five patients, and blockage was detected by LS. S. pneumoniae was isolated from all five patients' obstructed side conjunctival cultures. Additionally, from their lacrimal sac, S. pneumoniae (4 patients), Capnocytophaga gingivalis, and Candida spp. (1 patient) strains were isolated. S pneumoniae was isolated in four out of five patients from the ipsilateral conjunctival and lacrimal sac cultures which obtained from the subsequent DCR. CONCLUSION Our results showed that S. pneumoniae was an isolated and persistent strain in cases with early recurrence even after a successful DCR.
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Affiliation(s)
- Nazan Acar Eser
- Department of Ophthalmology, University of Health Science, Ulucanlar Eye Training and Research Hospital, Ankara, Turkey.
| | - Kubra Serbest Ceylanoglu
- Department of Ophthalmology, University of Health Science, Ulucanlar Eye Training and Research Hospital, Ankara, Turkey
| | - Emine Malkoc Sen
- Department of Ophthalmology, University of Health Science, Ulucanlar Eye Training and Research Hospital, Ankara, Turkey
| | - Ebru Evren
- Ankara University School of Medicine Department of Medical Microbiology and İbn-I Sina Hospital Central Microbiology Laboratory, Ankara, Turkey
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Hoshi S, Tasaki K, Maruo K, Ueno Y, Mori H, Morikawa S, Moriya Y, Takahashi S, Hiraoka T, Oshika T. Improvement in Dacryoendoscopic Visibility after Image Processing Using Comb-Removal and Image-Sharpening Algorithms. J Clin Med 2022; 11:jcm11082073. [PMID: 35456168 PMCID: PMC9032983 DOI: 10.3390/jcm11082073] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/30/2022] [Accepted: 04/05/2022] [Indexed: 02/01/2023] Open
Abstract
Recently, a minimally invasive treatment for lacrimal passage diseases was developed using dacryoendoscopy. Good visibility of the lacrimal passage is important for examination and treatment. This study aimed to investigate whether image processing can improve the dacryoendoscopic visibility using comb-removal and image-sharpening algorithms. We processed 20 dacryoendoscopic images (original images) using comb-removal and image-sharpening algorithms. Overall, 40 images (20 original and 20 post-processing) were randomly presented to the evaluators, who scored each image on a 10-point scale. The scores of the original and post-processing images were compared statistically. Additionally, in vitro experiments were performed using a test chart to examine whether image processing could improve the dacryoendoscopic visibility in a turbid fluid. The visual score (estimate ± standard error) of the images significantly improved from 3.52 ± 0.26 (original images) to 5.77 ± 0.28 (post-processing images; p < 0.001, linear mixed-effects model). The in vitro experiments revealed that the contrast and resolution of images in the turbid fluid improved after image processing. Image processing with our comb-removal and image-sharpening algorithms improved dacryoendoscopic visibility. The techniques used in this study are applicable for real-time processing and can be easily introduced in clinical practice.
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Affiliation(s)
- Sujin Hoshi
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan; (K.T.); (Y.U.); (H.M.); (S.M.); (Y.M.); (S.T.); (T.H.); (T.O.)
- Correspondence: ; Tel.: +81-298-533-148
| | - Kuniharu Tasaki
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan; (K.T.); (Y.U.); (H.M.); (S.M.); (Y.M.); (S.T.); (T.H.); (T.O.)
| | - Kazushi Maruo
- Department of Biostatistics, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan;
| | - Yuta Ueno
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan; (K.T.); (Y.U.); (H.M.); (S.M.); (Y.M.); (S.T.); (T.H.); (T.O.)
| | - Haruhiro Mori
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan; (K.T.); (Y.U.); (H.M.); (S.M.); (Y.M.); (S.T.); (T.H.); (T.O.)
| | - Shohei Morikawa
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan; (K.T.); (Y.U.); (H.M.); (S.M.); (Y.M.); (S.T.); (T.H.); (T.O.)
| | - Yuki Moriya
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan; (K.T.); (Y.U.); (H.M.); (S.M.); (Y.M.); (S.T.); (T.H.); (T.O.)
| | - Shoko Takahashi
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan; (K.T.); (Y.U.); (H.M.); (S.M.); (Y.M.); (S.T.); (T.H.); (T.O.)
| | - Takahiro Hiraoka
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan; (K.T.); (Y.U.); (H.M.); (S.M.); (Y.M.); (S.T.); (T.H.); (T.O.)
| | - Tetsuro Oshika
- Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba 305-8575, Japan; (K.T.); (Y.U.); (H.M.); (S.M.); (Y.M.); (S.T.); (T.H.); (T.O.)
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