Publications by authors named "Sonia Abente"
Purpose: To analyze antibiotic resistance and genetic profile of conjunctival bacteria flora before and after cataract surgery with the focus on coagulase-negative staphylococci (CNS) during cataract surgery and discuss the implications of this colonization as a potential risk of acquiring endophthalmitis.
Methods: After approval of the institutional review board and informed consent from patients had been obtained, conjunctival swabs for culture from 59 patients undergoing cataract surgery were taken of the fellow eye at baseline (C0) and from the eye to be operated before (T0) and after (T1) irrigation with povine-iodine 5%, and at the end of surgery (T2). Genes responsible for virulence (mecA, ica and atlE) and antibiotic profile were determined; strain clonality of persistent colonizing Staphylococcus epidermidis strains was established by the Multi-locus sequence typing (MLST).
[Keratitis due to Mycobaterium abscessus. First case report in Paraguay].
Rev Chilena Infectol
February 2022
Article Synopsis
- A 76-year-old woman in Asunción developed keratitis caused by the rare bacterium M. abscessus, despite having no eye trauma or previous surgery.
- This case is significant as it highlights the importance of accurate and timely diagnosis for effective treatment of keratitis.
- It marks the first reported instance of keratitis caused by Mycobacteria in Paraguay.
Purpose: In this prospective study, multiplex polymerase chain reaction (PCR) was used to identify genes encoding virulence factors (ica, atlE and mecA) in Coagulase-negative Staphylococcus (CNS) isolates from the ocular microbiota of patients undergoing cataract surgery and to investigate possible changes in the CNS profile due to antibiotic prophylaxis.
Methods: Between 09/2011 and 08/2013, patients undergoing cataract surgery were recruited at the Department of Ophthalmology, National University of Asuncion, Paraguay. In the eye to be operated on, patients received moxifloxacin 0.
Background: Coagulase-negative staphylococci have emerged as responsible for a large number of infections. However, it is often difficult to assess its pathogenic role or to discard it as a contaminant.
Aim: The goal of this study was to identify clinically significant coagulase-negative staphylococci to the species level and their virulence factors.