JULIANA MIKA KATO
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/33 - Laboratório de Oftalmologia, Hospital das Clínicas, Faculdade de Medicina
LIM/33 - Laboratório de Oftalmologia, Hospital das Clínicas, Faculdade de Medicina
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Resultados de Busca
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conferenceObject Clinical characteristics, outcome, and management of Staphylococcus epidermidis endophthalmitis(2019) TANAKA, Tatiana; KATO, Juliana Mika; OLIVEIRA, Luiza Manhezi Shin de Shin de; ODA, Eduardo Ferracioli; BARBOSA, Thaisa Silveira; ROSSI, Flavia; ALMEIDA JUNIOR, Joao Nobrega; YAMAMOTO, Joyce Hisae- Bactec (TM) blood culture bottles allied to MALDI-TOF mass spectrometry: rapid etiologic diagnosis of bacterial endophthalmitis(2017) TANAKA, Tatiana; OLIVEIRA, Luiza Manhezi de Freitas; FERREIRA, Bruno Fortaleza de Aquino; KATO, Juliana Mika; ROSSI, Flavia; CORREA, Karoline de Lemes Giuntini; PIMENTEL, Sergio Luis Gianotti; YAMAMOTO, Joyce Hisae; ALMEIDA JUNIOR, Joao NobregaMatrix-assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry (MS) has been used for direct identification of pathogens from blood-inoculated blood culture bottles (BCBs). We showed that MALDI-TOF MS is an useful technique for rapid identification of the causative agents of endophthalmitis from vitreous humor-inoculated BCBs with a simple protocol.
- Surveillance of post-cataract endophthalmitis at a tertiary referral center: a 10-year critical evaluation(2021) KATO, Juliana Mika; TANAKA, Tatiana; OLIVEIRA, Luiza Manhezi Shin de; OLIVEIRA, Maura Salaroli de; ROSSI, Flavia; GOLDBAUM, Mauro; PIMENTEL, Sergio Luis Gianotti; ALMEIDA JUNIOR, Joao Nobrega de; YAMAMOTO, Joyce HisaeBackgroundAcute post-cataract endophthalmitis (APE) is a rare complication potentially causing irreversible visual loss. A 10-year study of APE was conducted to determine its incidence, microbiological spectra and antibiotic resistance profile of APE-related pathogens at a major tertiary referral center in Brazil.MethodsAPE cases reported between January 2010 and December 2019 were included. Phacoemulsification and extracapsular cataract techniques were eligible; combined procedures, traumatic and congenital cataract were excluded. Vitreous samples were cultured and antimicrobial resistance was compared for the periods of 2010-2014 and 2015-2019. The results were analyzed with Fisher's exact test.ResultsOur sample consisted of 40,491 cataract surgeries and 51 (0.126%) APE cases. Culture was positive in 35 cases (71.4%), of which 31 (88.6%) Gram-positive, 3 (8.6%) Gram-negative, and 1 (2.9%) fungal. The most frequently isolated organism was Staphylococcus epidermidis (n=17/35, 48.6%), followed by Staphylococcus aureus (n=4/35, 11.4%). From 2010-2014 to 2015-2019, antimicrobial resistance increased against moxifloxacin (11.1-54.5%, p=0.07), ciprofloxacin (54.5-72.7%, p=0.659) and oxacillin (66.7-93.3%, p=0.13).ConclusionsThe observed incidence and microbial spectra were compatible with previous studies. A trend towards growing moxifloxacin and ciprofloxacin resistance was observed. Surveillance remains crucial to prevent treatment failure from antimicrobial resistance.
- Detection of coronavirus-2 by real-time reverse transcription polymerase chain reaction in conjunctival swabs from patients with severe form of Coronavirus disease 2019 in Sao Paulo, Brazil(2021) MISAWA, Mariana Akemi Matsura; TANAKA, Tatiana; MINELLI, Tomas; BRAGA, Pedro Gomes Oliveira; KATO, Juliana Mika; GOUVEA, Michele Soares Gomes; PINHO, Joao Renato Rebello; YAMAMOTO, Joyce HisaeOBJECTIVES: To test conjunctival swabs from patients with laboratory-confirmed severe forms of coronavirus disease 2019 (COVID-19) for the presence of SARS-CoV-2 on real-time reverse-transcription polymerase chain reaction (rRT-PCR). METHODS: Fifty conjunctival swabs were collected from 50 in-patients with laboratory-confirmed severe forms of COVID-19 at the largest teaching hospital and referral center in Brazil (HCFMUSP, Sao Paulo, SP). The samples were tested for SARS-CoV-2 on rRT-PCR with the primers and probes described in the CDC protocol which amplify the region of the nucleocapsid N gene (2019_nCoV_N1 and 2019_nCoV_N2) of SARS-CoV-2 RNA and compared with naso/oropharyngeal swabs collected within 24 hours of the conjunctival swabs. RESULTS: Five conjunctival samples (10%) tested positive (amplification of the N1 and N2 primer/probe sets) while two conjunctival samples (4%) yielded inconclusive results (amplification of the N1 primer/probe set only). The naso/oropharyngeal swabs were positive for SARS-CoV-2 on rRT-PCR in 34 patients (68%), negative in 14 (28%) and inconclusive in 2 (4%). The 5 patients with positive conjunctival swabs had positive (n=2), negative (n=2) or inconclusive (n=1) naso/oropharyngeal swabs on rRT-PCR. Patients with negative or inconclusive naso/oropharyngeal swabs had the diagnosis of COVID-19 confirmed by previous positive rRT-PCR results or by serology. CONCLUSION: This is the first study to present conjunctival swab rRT-PCR results for SARS-CoV-2 in a Brazilian population. In our sample of 50 patients with severe forms of COVID-19, 10% had positive conjunctival swabs, most of which were correlated with positive naso/oropharyngeal rRT-PCR results.
conferenceObject Microbial isolates and antibiotic resistance trends in infectious endophthalmitis(2019) KATO, Juliana Mika; OLIVEIRA, Luiza Manhezi Shin de Shin de; TANAKA, Tatiana; ALMEIDA JUNIOR, Joao Nobrega; ROSSI, Flavia; OLIVEIRA, Maura Salaroli de; YAMAMOTO, Joyce H.conferenceObject The use of pediatric blood culture bottles in the diagnosis of acute postoperative endophthalmitis(2015) TANAKA, Tatiana; ALMEIDA, Joao Nobrega de; GIOIA, Thais Sabota Romano Di; ROSSI, Flavia; KATO, Juliana Mika; FERREIRA, Bruno Fortaleza de Aquino; RUPPERT, Aline Domingos Pinto; NAKASHIMA, Yoshitaka; PIMENTEL, Sergio Luis Gianotti; YAMAMOTO, Joyce H.conferenceObject Bactec (TM) blood culture bottles allied to MALDI-TOF mass spectrometry: Rapid etiologic diagnosis of bacterial endophthalmitis(2017) TANAKA, Tatiana; OLIVEIRA, Luiza Manhezi de Freitas; FERREIRA, Bruno Fortaleza de Aquino; KATO, Juliana Mika; ROSSI, Flavia; CORREA, Karoline de Lemes Giuntini; PIMENTEL, Sergio Luis Gianotti; YAMAMOTO, Joyce H.; ALMEIDA JUNIOR, Joao Nobrega de- Diagnostic value of pediatric blood culture bottles for acute postoperative endophthalmitis(2019) TANAKA, Tatiana; FERREIRA, Bruno Fortaleza de Aquino; OLIVEIRA, Luiza Manhezi Shin de; KATO, Juliana Mika; GIOIA, Thais Sabato Romano Di; ROSSI, Flavia; NAKASHIMA, Yoshitaka; PIMENTEL, Sergio Luis Gianotti; YAMAMOTO, Joyce Hisae; ALMEIDA JUNIOR, Joao Nobrega deOBJECTIVE: To report our experience using conventional culture methods (CM) and pediatric blood culture bottles (PBCBs) for vitreous sample culture of acute postoperative endophthalmitis. METHODS: A retrospective study was conducted at the Department of Ophthalmology, Hospital das Clinicas, HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, BR, from January 2010 to December 2015, and it included 54 patients with clinically suspected acute postoperative endophthalmitis. Vitreous samples were obtained by vitreous tap or vitrectomy. Samples from January 2010 to December 2011 were cultivated in CM, whereas samples from January 2012 to December 2015 were inoculated in PBCBs. The measured outcome was the yield of positive cultures. RESULTS: Twenty cases were included in the CM group, and 34 cases were included in the PBCB group. The yield of positive cultures in PBCBs (64.7%) was significantly higher than that in conventional CM (35%, p=0.034). Staphylococcus epidermidis and Streptococcus viridans were the two most commonly found agents. CONCLUSION: PBCBs can be used successfully in clinically suspected endophthalmitis. The method showed a higher yield of positive cultures than the conventional method. This technique appears to have several advantages over the traditional method: it saves time, as only one medium needs to be inoculated; transportation to a laboratory is easier than in the traditional method, and there is no need to maintain a supply of fresh agar media. The use of PBCBs may be recommended as the primary method for microbiological diagnosis and is especially suitable for office settings and remote clinics.
conferenceObject Detection of SARS-CoV-2 on conjunctiva by rRT-PCR in patients with severe form of COVID-19(2021) MISAWA, Mariana Akemi Matsura; TANAKA, Tatiana; BRAGA, Pedro Gomes Oliveira; MINELLI, Tomas; KATO, Juliana Mika; GOUVEA, Michele Soares Gomes; PINHO, Joao Renato Rebello; YAMAMOTO, Joyce H.