Journals / Türk Mikrobiyoloji Cemiyeti Dergisi / 2018 / Cilt: 48 - Sayı: 4

The Distribution and Antifungal Susceptibilities of Candida Species Isolated from Blood Cultures

Kan Kültürlerinden İzole Edilen Candida Türlerinin Dağılımı ve Antifungal Duyarlılıkları

Pages
256–263
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Conclusion: In conclusion, in our study, the most frequently isolated species was C. albicans and among the non-albicans Candida species it was C. parapsilosis.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Candida species are the most common fungal pathogens causing infection in human beings, and their importance is increasing in parallel with the developments in diagnosis and treatment approaches in recent years.
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Key Findings & Data:Material and Methods: Yeast growth in blood cultures sent to Microbiology Laboratory of Duzce University, Research and Training Hospital, during January 2012-March 2018 period, were identified by germ tube formation, microscopic appearance on corn meal-Tween 80 agar and typing was performed using VITEK 2 Compact automated identification system.
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Conclusion & Impact:Conclusion: In conclusion, in our study, the most frequently isolated species was C. albicans and among the non-albicans Candida species it was C. parapsilosis.
🔬Design:Research Article
📍Scope:2012 Verileri
⚙️Variables:Domain Parameters

Abstract

Objective: Candida species are the most common fungal pathogens causing infection in human beings, and their importance is increasing in parallel with the developments in diagnosis and treatment approaches in recent years. In this study, it was aimed to determine retrospectively the distribution and antifungal susceptibilities of Candida species isolated from blood cultures. Material and Methods: Yeast growth in blood cultures sent to Microbiology Laboratory of Duzce University, Research and Training Hospital, during January 2012-March 2018 period, were identified by germ tube formation, microscopic appearance on corn meal-Tween 80 agar and typing was performed using VITEK 2 Compact automated identification system. Susceptibilities of amphotericin B, voriconazole, fluconazole and micafungin were determined using the same automated system. Results: A total of 81 Candida isolates were identified as Candida albicans (55%), Candida parapsilosis (18%), Candida glabrata (12%), Candida tropicalis (12%), Candida lipolytica (2%) and Candida kefyr (1%). Of the isolates 7% were found to be resistant to amphotericin B, 12% to voriconazole, 11% to fluconazole, 19% to micafungin. Conclusion: In conclusion, in our study, the most frequently isolated species was C. albicans and among the non-albicans Candida species it was C. parapsilosis. It was observed that the antifungal resistance rates of isolates are quite different among species. This suggests that Candida species should be identified at the species level and antifungal susceptibility tests should be performed in invasive infections such as candidiasis and determining the antifungal resistance profiles of Candida species will guide the empirical therapy.

Özet

Amaç: Candida türleri, insanlarda en sık enfeksiyonaneden olan fungal patojenler olup, son yıllarda tanı vetedavi yaklaşımlarındaki gelişmelere paralel olarak gittikçeönemleri artmaktadır. Bu çalışmada, retrospektif olarakkan kültürlerinden izole edilen Candida türlerinin dağılımıve antifungal duyarlılıklarının belirlenmesi amaçlanmıştır.Gereç ve Yöntem: Ocak 2012-Mart 2018 dönemindeDüzce Üniversitesi Uygulama ve Araştırma HastanesiMikrobiyoloji Laboratuvarı’na gönderilen kan kültürlerindebelirlenen maya üremeleri, koloni morfolojisi, germ tüpoluşumu, mısır unu-Tween 80 agarda mikroskobikgörünümleri ve VITEK 2 Compact otomatize identifikasyonsistemi ile tiplendirilmiştir. Amfoterisin B, vorikonazol,flukonazol ve mikafungin duyarlılıkları aynı otomatizesistem ile belirlenmiştir.Bulgular: Toplam 81 Candida izolatının %55’i Candidaalbicans, %18’i Candida parapsilosis, %12’si Candidaglabrata, %12’si Candida tropicalis, %2’si Candidalipolytica ve %1’i Candida kefyr olarak tanımlanmıştır.İzolatların %7’si amfoterisin B’ye, %12’si vorikonazole,%11’i flukonazole, %19’u mikafungine dirençli olaraksaptanmıştır.Sonuç: Çalışmamızda, en sık izole edilen köken Candidaalbicans, non-albicans Candida türlerinde iseC. parapsilosis olmuştur. İzolatların antifungal dirençoranlarının türler arasında oldukça farklı olduğugözlenmiştir. Bu durum kandidemi gibi invazivenfeksiyonlarda, Candida’ların tür düzeyinde tanımlanmasıve antifungal duyarlılık testlerinin yapılması gerektiğini,duyarlılık testi ile Candida’ların antifungal direnç profilleribelirlenerek ampirik tedavide yol gösterici olacağınıdüşündürtmüştür.

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Cite This Article

AKAR, N., ÖZTÜRK, C. E., ÖKSÜZ, Ş., KARAMURAT, Z. D., KILINÇEL, Ö., ŞAHİN, İ., ÇALIŞKAN, E. (2022). The Distribution and Antifungal Susceptibilities of Candida Species Isolated from Blood Cultures. Türk Mikrobiyoloji Cemiyeti Dergisi, Cilt: 48 - Sayı: 4, 256–263. https://ajindex.com/articles/635854

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