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This study aimed to analyze the frequency, drug susceptibility, and drug resistance of pathogens causing microbial keratitis (a corneal inflammation) in the Clinical Department of Ophthalmology, Medical University of Silesia, Katowice. Despite intensive treatment, severe inflammation causes irreversible blindness in â¼7% of cases and eye loss (evisceration or enucleation of the eyeball) in â¼1% of cases at our hospital. The choice of a targeted drug depends on the culture result and drug resistance of the microorganism. This was a retrospective observation study. Conjunctival swabs and corneal scrapes were collected between January 1, 2013, and December 31, 2019, in the tertiary reference center for keratitis. The collected data included the type of material received, culture result, and antimicrobial susceptibilities. Of the 2482 samples analyzed, 679 were positive and 1803 were negative. Of the total pathogens isolated, 69.9% were Gram-positive bacteria, 20.8% were Gram-negative bacteria, and 7.1% were fungi. A significant increase in the number of Gram-positive methicillin-resistant Staphylococcus aureus and a partial increase in the number of Gram-negative beta-lactams-resistant bacteria were observed. All fungal species were sensitive to amphotericin B, 82.81% were sensitive to voriconazole, and 56.25% were sensitive to fluconazole. Dual drug therapy (levofloxacin and tobramycin) was the first-line treatment. Drug susceptibility testing of the cultured microorganisms is necessary to initiate targeted treatment. Increased drug resistance was observed in this study. In the present study, most bacteria were sensitive to fluoroquinolones. Ciprofloxacin therapy remains the recommended empirical treatment in microbial keratitis. According to our study, voriconazole remains a first-line antifungal drug, when a fungal infection is suspected.
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PURPOSE: To describe the findings of in vivo confocal microscopy (IVCM) and anterior segment optical coherence tomography (AS-OCT) in a case of bilateral acute microcystic epitheliopathy after daily soft contact lens wear. METHODS: IVCM and AS-OCT were used in the course of the bilateral epitheliopathy of a 23-year-old patient at the acute stage of the disease and at recovery after four days of treatment. The images were analyzed and compared. RESULTS: On AS-OCT of the right eye, general hyperreflectivity and the increased thickness of the central corneal epithelium to 150 µm with numerous hyporeflective small, oval cysts were revealed and resolved completely at day 4 after diagnosis and treatment. AS-OCT scans of the left eye revealed oval shaped, hyperreflective material within the corneal epithelium. IVCM of both eyes showed numerous microcysts of different sizes filled with hyperreflective material mostly within superficial epithelial layers. Epithelial cells showed a polymorphism along with disruption of a cytoarchitecture. Basal epithelial cells and anterior stroma showed inflammatory changes. Posterior corneal stroma and endothelium presented normal morphology. CONCLUSIONS: Microcystic keratitis appeared as localized microcystic inflammation of epithelium on AS-OCT, which was confirmed by IVCM. Both IVCM and AS-OCT are helpful diagnostic instruments in case of cystic inflammation of corneal epithelium.
RESUMEN
BACKGROUND: Urinary tract infections (UTI) in patients with urinary catheters could be a serious complication of hospitalisation in the intensive care unit (ICU). METHODS: A prospective study (01.01.2012-31.12.2014) was conducted in the 20-bed ICU of the University Hospital in Wroclaw, Poland. The frequency (density, incidence) and aetiology of UTI as well as prophylactic method compliance were estimated in patients of the ICU according to the INICC project. RESULTS: Among 1261 ICU patients, urinary tract infections were diagnosed in 91 (7%). The incidence index was 7.25/100 admissions to the ICU. CA-UTI constituted 36% of the device-associated, healthcare-associated infections (n = 255). A urinary catheter was used in 92.21 ± 4.51% of patients during 14,006 patient-days and 12,917 urinarycatheter- days. The density of CA-UTI/1000 catheter-days was 6.44, 6.84, 7.16 during the years 2012, 2013, and 2014, respectively. The main pathogens of CA-UTI were Enterococcus spp. (22%), Acinetobacter baumannii (20%), Klebsiella pneumoniae (18%), Pseudomonas aeruginosa (13%), and Candida spp. (13%). Only in four elements of the "Urinary Catheter Bundle" was 100% compliance noted. CONCLUSIONS: In the observed period of time, the incidence of CA-UTI was higher than in the INICC (2014) report and the NHSN/CDC (2012) report. Analysis of compliance with a "Urinary Catheter Bundle" to prevent UTI shows low implementation of preventative methods with the INICC protocol.
