scholarly journals Increase of Non-Albicans Candida Species and Their Antifungal Susceptibility in Intensive Care Unit Patients (Mexico)

Author(s):  
Rosa Paulina Calvillo-Medina ◽  
Rocio Alejandrina Mejía-Romero ◽  
Magda Martínez-Neria ◽  
Juan José Olalde-Elias ◽  
Fernando Domínguez-Márquez

Abstract In Mexico little is known about candidemia by non-albicans Candida species and regarding their antifungal susceptibility. Besides without antifungal tests, fluconazole is one of the most used in empirical therapy. In the present study, we included patients from intensive care unit of one hospital in Mexico (2019–2020) with compatible yeast infection clinical signs, symptoms. Based on cultivable isolates, yeasts were identified by automated instrument and by molecular method (PCR), and their susceptibilities to six antifungals were characterized at different concentrations. From 105 patients, yeast cultures were recovered and identified mainly non-albicans Candida species (57.2%); and the most prevalent was C. glabrata (41.9%). Followed by C. albicans, C. krusei, C. parapsilosis, C. tropicalis and Cryptococcus neoformans. The most common infection site was urine (56%), followed by the bronchial aspirate (30%). Mostly the isolated fungi were susceptible to 5-flucytosine (98%) and to amphotericin B. Mainly C. glabrata followed by C. krusei and C. tropicalis were resistant to different concentrations of itraconazole, miconazole, and fluconazole. The present investigation contributes to the knowledge of non-albicans Candida species infections in patients and, opens the possibility for a better understanding and management in antifungal empirical therapy.in Mexico.

2021 ◽  
Vol 7 (3) ◽  
pp. 220
Author(s):  
João N. de Almeida ◽  
Elaine C. Francisco ◽  
Ferry Hagen ◽  
Igor Brandão ◽  
Felicidade M. Pereira ◽  
...  

In December 2020, Candida auris emerged in Brazil in the city of Salvador. The first two C. auris colonized patients were in the same COVID-19 intensive care unit. Antifungal susceptibility testing showed low minimal inhibitory concentrations of 1 µg/mL, 2 µg/mL, 0.03 µg/L, and 0.06 µg/mL for amphotericin B, fluconazole, voriconazole, and anidulafungin, respectively. Microsatellite typing revealed that the strains are clonal and belong to the South Asian clade C. auris. The travel restrictions during the COVID-19 pandemic and the absence of travel history among the colonized patients lead to the hypothesis that this species was introduced several months before the recognition of the first case and/or emerged locally in the coastline Salvador area.


2020 ◽  
Vol 51 (3) ◽  
pp. 851-860
Author(s):  
Ralciane de Paula Menezes ◽  
Sávia Gonçalves de Oliveira Melo ◽  
Meliza Arantes Souza Bessa ◽  
Felipe Flávio Silva ◽  
Priscila Guerino Vilela Alves ◽  
...  

2009 ◽  
Vol 75 (5) ◽  
pp. 405-410 ◽  
Author(s):  
Jeffrey A. Claridge ◽  
Joseph F. Golob ◽  
Adam M. A. Fadlalla ◽  
Mark A. Malangoni ◽  
Jeffrey Blatnik ◽  
...  

The diagnosis of bacteremia in critically ill patients is classically based on fever and/or leukocytosis. The objectives of this study were to determine 1) if our intensive care unit obtains blood cultures based on fever and/or leukocytosis over the initial 14 days of hospitalization after trauma; and 2) the efficacy of this diagnostic workup. An 18-month retrospective cohort analysis was performed on consecutively admitted trauma patients. Data collected included demographics, injuries, and the first 14 days maximal daily temperature, leukocyte count, and results of blood and catheter tip cultures. Fever was defined as a maximum daily temperature of 38.5°C or greater and leukocytosis as a leukocyte count 12,000/mm3 or greater of blood. Five hundred ten patients were evaluated for a total of 3,839 patient-days. The mean age and injury severity score were 49 ± 1 years and 19 ± 1, respectively. Four hundred twenty-five blood culture episodes were obtained and 25 (6%) bacteremias were identified in 23 patients (5%). A significant association was found between obtaining blood cultures in patients with fever (relative risk [RR], 7.7), leukocytosis (RR, 1.3), and fever + leukocytosis (RR, 3.2). However, no significant association was found between these clinical signs and the diagnosis of bacteremia. In fact, fever alone was inversely associated with bacteremia. Our intensive care unit follows the common “fever workup” practice and obtains blood cultures based on the presence of fever and leukocytosis. However, fever and leukocytosis were not associated with bacteremia, suggesting inefficiency and that other factors are more important after trauma.


Trials ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Maria Cristina Mondardini ◽  
Francesca Sperotto ◽  
Marco Daverio ◽  
Fabio Caramelli ◽  
Dario Gregori ◽  
...  

Abstract Background Prolonged treatment with analgesic and sedative drugs in the pediatric intensive care unit (PICU) may lead to undesirable effects such as dependence and tolerance. Moreover, during analgosedation weaning, patients may develop clinical signs of withdrawal, known as withdrawal syndrome (WS). Some studies indicate that dexmedetomidine, a selective α2-adrenoceptor agonist, may be useful to prevent WS, but no clear evidence supports these data. The aims of the present study are to evaluate the efficacy of dexmedetomidine in reducing the occurrence of WS during analgosedation weaning, and to clearly assess its safety. Methods We will perform an adaptive, multicenter, randomized, double-blind, placebo-controlled trial. Patients aged < 18 years receiving continuous intravenous analgosedation treatment for at least 5 days and presenting with clinical conditions that allow analgosedation weaning will be randomly assigned to treatment A (dexmedetomidine) or treatment B (placebo). The treatment will be started 24 h before the analgosedation weaning at 0.4 μg/kg/h, increased by 0.2 μg/kg/h per hour up to 0.8 μg/kg/h (neonate: 0.2 μg/kg/h, increased by 0.1 μg/kg/h per hour up to 0.4 μg/kg/h) and continued throughout the whole weaning time. The primary endpoint is the efficacy of the treatment, defined by the reduction in the WS rate among patients treated with dexmedetomidine compared with patients treated with placebo. Safety will be assessed by collecting any potentially related adverse event. The sample size assuring a power of 90% is 77 patients for each group (total N = 154 patients). The study was approved by the Ethics Committee of the University-Hospital S.Orsola-Malpighi of Bologna on 22 March 2017. Discussion The present trial will allow us to clearly assess the efficacy of dexmedetomidine in reducing the occurrence of WS during weaning from analgosedation drugs. In addition, the study will provide a unique insight into the safety profile of dexmedetomidine. Trial registration ClinicalTrials.gov, NCT03645603. Registered on 24 August 2018. EudraCT, 2015–002114-80. Retrospectively registered on 2 January 2019.


2008 ◽  
Vol 53 (3) ◽  
pp. 1242-1244 ◽  
Author(s):  
George Dimopoulos ◽  
Aristea Velegraki ◽  
Matthew E. Falagas

ABSTRACT This study retrospectively reviews the susceptibility of 135 baseline ICU candidemia isolates (from 1997 to 2007) to nine antifungals as determined by the AFST-EUCAST microdilution method and identifies the most frequent causative agents of confirmed point-source candidemia outbreaks in local intensive care units. A minority of common and rare Candida species displayed decreased susceptibility to all antifungals.


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