Clinical and epidemiological aspects of Candidemia in eight medical centers in the state of Parana, Brazil: Parana Candidemia Network

ABSTRACT Objectives: Candida spp. has been reported as one of the common agents of nosocomial bloodstream infections and is associated with a high mortality. Therefore, this study evaluated the clinical findings, local epidemiology, and microbiological aspects of candidemia in eight tertiary medical centers in the state of Parana, South of Brazil. Methods: In this study, we reported 100 episodes of candidemia in patients admitted to eight different hospitals in five cities of the state of Parana, Brazil, using data collected locally (2016 and 2017) and tabulated online. Results: The incidence was found to be 2.7 / 1000 patients / day and 1.2 / 1000 admissions. C. albicans was responsible for 49% of all candidemia episodes. Cancer and surgery were the two most common underlying conditions associated with candidemia. The mortality rate within 30 days was 48%, and removal of the central venous catheter (p = 0.029) as well as empirical or prophylactic exposure to antifungals were both related to improved survival (p = 0.033). Conclusions: This study highlights the high burden and mortality rates of candidemia in hospitals from Parana as well as the need to enhance antifungal stewardship program in the enrolled medical centers.

Secular trends of candidemia at a Brazilian tertiary care teaching hospital

ABSTRACT Background Candidemia is the most frequent invasive fungal disease in hospitalized patients, and is associated with high mortality rates. The main objective of this study was to evaluate changes in the epidemiology of candidemia at a tertiary care hospital in a 21-year period. Methods We evaluated all episodes of candidemia diagnosed between 1996 and 2016 at a University-affiliated tertiary care hospital in Brazil. We arbitrarily divided the study period in 3: 1996-2002 (period 1), 2003-2009 (period 2) and 2010-2016 (period 3). Incidence rates were calculated using hospital admissions as denominator. Results We observed 331 episodes of candidemia. The incidence was 1.30 episodes per 1000 admissions, with no significant change over time. Candida albicans (37.5%), C. tropicalis (28.1%), C. parapsilosis (18.4%) and C. glabrata (6.9%) were the most frequent species. The proportion of patients receiving treatment increased (65.5%, 79.4% and 74.7% in periods 1, 2 and 3, respectively, p= 0.04), and the median time from candidemia to treatment initiation decreased from 4 days in period 1 (range 0-32 days) to 2 days in period 2 (range 0-33 days) and 2 days in period 3 (range 0-14 days, p< 0.001). We observed a significant decrease in the use of deoxycholate amphotericin B (47.4%, 14.8% and 11.9%), and an increase in the use of echinocandins (0%, 2.8% and 49.1%; p< 0.001). The APACHE II score increased over time (median 16, 17.5, and 22, p< 0.001). The overall 30-day mortality was 58.9%, and did not change significantly over the study period. Conclusions There was an improvement in patient care, with an increase in the proportion of patients receiving treatment and a decrease in the time to treatment initiation, but no improvement in the outcome, possibly because the proportion of sicker patients increased over time.

Candidemia en un hospital pediátrico de alta complejidad / Candidemia in a tertiary-care pediatric hospital

Introducción: La frecuencia de las candidemias ha aumentado en los últimos años asociada principalmente a internación prolongada, antibióticos de amplio espectro y enfermedades de base. Se produjo también un cambio en la distribución y un aumento en la resistencia a los antifúngicos de las distintas especies de Candida spp., todo esto asociado a una elevada morbimortalidad. En este trabajo realizado durante un año en un hospital de alta complejidad, se incluyeron 33 pacientes con candidemia. La mediana de la edad fue de 22 meses y un 60% de los afectados fueron varones. El 97% de los niños tenían enfermedad de base con predominio de la patología oncohematológica. Un 88% presentó algún procedimiento o condición predisponente para la infección, principalmente portación de catéter venoso central y cirugía previa. En un 59% de los aislamientos predominaron especies de Candida diferentes de Candida albicans. Anfotericina B desoxicolato fue el tratamiento empírico de elección. La mediana de tratamiento fue de 21 días y la de internación de 66 días. La mortalidad fue del 12% y se asoció a ingreso a UCI, presencia de fiebre al momento del diagnóstico y requerimiento de ARM (AU)

The incidence of candidemia has increased over the past years mainly associated with prolonged hospital stay, wide-spectrum antibiotics, and underlying diseases. At the same time there has been a change in the distribution and an increase in the resistance to antifungals in different Candida spp, associated with a high morbidity and mortality. In this study, conducted during one year at a tertiary hospital, 33 patients with candidemia were included. Median age was 22 months and 60% of the patients were boys. Overall, 97% of the children had an underlying hematology-oncology disease. Of the patients, 88% underwent a procedure or had a condition that predisposed to infection, mainly the placement of a central venous catheter and previous surgery. In 59% the isolated Candida species were Candida albicans. Amphotericin B deoxycholate was the empirical treatment of choice. Median time of treatment was 21 days and median hospital stay was 66 days. Mortality was 12% and was associated with ICU admission, presence of fever at the time of diagnosis, and requirement of mechanical ventilation (AU)

The frequency of infective endocarditis in candida bloodstream infections: a retrospective study in a child hospital

Abstract Introduction: Fungal endocarditis is reported less frequently than bacterial endocarditis, with an incidence of 0-12% of the total pediatric infective endocarditis. Objective: In this study, the incidence of infective endocarditis in Candida bloodstream infections in a tertiary hospital during the periods of 2007 and 2016 was reviewed. Methods: Patients with positive blood or catheter cultures in terms of Candida spp. during the study period of January 2007 and January 2016 were analyzed in terms of Candida infective endocarditis. Infective endocarditis was defined according to the modified Duke criteria. The outcome, possible associated predisposing factors for Candida endocarditis were determined. Results: 221 patients and 256 attacks with positive blood or catheter cultures in terms of Candida were included in the study. The most common Candida species was Candida parapsilosis, isolated in 157 (61.3%) attacks, followed by Candida albicans in 70 (27.3%). Neurological diseases (23%), hemato-oncological diseases (12.1%), previously known heart diseases (8.2%), inborn errors of metabolism (9%) were common comorbidities. Twelve (5.4%) patients had a previous history of cardiac surgery. Among the 221 patients, Candida endocarditis was present in only two (0.9%) of them. Conclusion: Although Candida infective endocarditis is an uncommon but frequently fatal infection in pediatrics, echocardiography should be performed routinely for patients with positive blood or catheter cultures in terms of Candida. Prompt and effective antimicrobial therapy might prevent cardiac surgery in selected cases, however this could not be a general rule for all patients.

Epidemiología, especies, resistencia antifúngica y evolución de las candidemias en un hospital universitario de Buenos Aires, Argentina, durante 16 años / Epidemiology, species, antifungal resistance and outcome of candidemia in a university hospital in Buenos Aires, Argentina for 16 years

Resumen Introducción: La epidemiologia de las candidemias varía en cada región. Objetivos: Conocer la epidemiología de las candidemias en un hospital durante 16 años. Material y Métodos: Se revisaron los episodios de candidemia ocurridos en el Hospital de Clínicas de Buenos Aires desde 01/01/98 al 31/12/13. Resultados: Se identificaron 374 episodios de candidemia. La incidencia fue de 2,21/1.000 egresos y aumentó de 1,96 (1998-2005) a 2,25 (2006-2013) (p = 0,023). Se diagnosticaron: 5,4% en neonatos, 1,7% en lactantes, 6,5% en niños mayores, 31,8% en adultos y 52,7% en adultos mayores de 64 años. Los episodios fueron causados por C. albicans (40,9%), C. parapsilosis (21,7%), C. tropicalis (15,5%), C. glabrata (13,9%), otras especies de Candida (5,1%) y candidemias multiespecies (2,9%). El 5,3% de los aislados fue resistente a fluconazol. Setenta y cuatro por ciento de los pacientes recibió tratamiento; 70,3% lo inició con fluconazol, 25% con anfotericina B desoxicolato y 4,7% con equinocandinas o anfotericinas lipídicas. Se retiró 81% de los catéteres venosos centrales. La mortalidad fue de 47,9%, pero fue de 60,8% para los adultos mayores. Conclusión: La incidencia de candidemias se incrementó a través de los años, fue mayor en los adultos mayores y esta población tuvo peor evolución.

Background: The epidemiology of candidemia vary by region. Aim: To determine the epidemiology of candidemia in a hospital for 16 years. Material and Methods: Episodes of candidemia occurred in the Hospital de Clinicas of Buenos Aires were reviewed, from 01/01/98 to 31/12/13. Results: 374 episodes of candidemia were identified. The incidence was 2.21/1,000 discharges and increased from 1.96 (1998-2005) to 2.25 (2006-2013) (p = 0.023). Candidemia was diagnosed: 5.4% in neonates, 1.7% in infants, 6.5% in children, 31.8% in adults and 52.7% in elderly adults over 64 years old. The episodes were caused by C. albicans (40.9%), C. parapsilosis (21.7%), C. tropicalis (15.5%), C. glabrata (13.9%), other species of Candida (5.1%) and more than one species of Candida (2.9%). The 5.3% of the isolates were resistant to fluconazole. 74% of patients were treated. Initial treatments were with fluconazole (70.3%), amphotericin B deoxycholate (25%), echinocandins or lipidic amphotericin (4,7%). The 81% of central venous catheters were taken off. Mortality rate was of 47.9%, but in the elderly adults was of 60.8%. Conclusion: The incidence of candidemia showed an increase over the years. It was higher in the elderly adults, being the group with worse outcomes.

Epidemiología y susceptibilidad antifúngica de especies causantes de candidemia en la ciudad de Valdivia, Chile / Epidemiology and antifungal susceptibility of species producing candidemia in Valdivia, Chile

Resumen Introducción: La epidemiología de la candidemia en Chile es poco conocida, a pesar de ser una enfermedad frecuente y grave. Objetivos: Analizar la incidencia y perfil de susceptibilidad in vitro de especies del género Candida causantes de candidemia en el Hospital Base Valdivia. Material y Métodos: Se identificó todos los casos de candidemia ocurridos en la institución entre marzo de 2009 y agosto de 2011. Se estudió la distribución de especies y susceptibilidad in vitro por el método de disco difusión. Resultados: Se estudiaron 27 episodios de candidemia. La incidencia varió de 0,3 a 0,7 por 1.000 egresos (según servicio clínico). Fueron factores de riesgo: la hospitalización, uso previo de antimicrobianos, edad avanzada y enfermedad de base (insuficiencia renal, enfermedad cardiaca y pulmonar). La especie más frecuente fue C. albicans seguida de C. tropicalis, C. glabrata y C. krusei. Voriconazol fue el antifúngico con mejor actividad in vitro y hubo resultados variables para anfotericina B, fluconazol e itraconazol. Discusión: La incidencia encontrada fue superior a la de países desarrollados. Candida albicans, constituye la especie más frecuente, con alta sensibilidad in vitro a fluconazol, debiendo ser vigiladas las especies de Candida no albicans. Es fundamental desarrollar nuevas investigaciones para detectar potenciales variaciones epidemiológicas.

Background: Candidemia disease in Chile is not very known, despite being a very common and serious disease. Aim: To analyze incidence and susceptibility profile of species from the genus Candida in Hospital Base Valdivia. Material and Methods: All candidemia cases presented between March 2009 and August 2011 in our institution were identified. Species distribution and susceptibility were studied through the disk diffusion method. Results: Twenty-seven candidemia episodes were studied. Incidence varied from 0.3 to 0.7 by a thousand discharges (according to clinical service). Risk factors were hospitalization, preliminary use of antibiotics, aged people and underlying disease (renal failure, heart and lung disease). The most frequent species was C. albicans, followed by C. tropicalis, C. glabrata and C. krusei. Voriconazole was the antifungal showing the best in vitro performance. Amphotericin B, fluconazole and itraconazole presented variable results. Discussion: Incidence found was superior to that described in developed countries. Candida albicans constitute the most frequent species, with high sensitivity levels to fluconazole; Candida no albicans species must be monitored. Developing new research on the topic appears as fundamental to detect potential epidemiological variations.

Cambios clínicos y epidemiológicos de candidemias en pacientes adultos desde 2000 a 2013 / Clinical and epidemiological changes of candidemia among adult patients from 2000 to 2013

Background: Invasive Candida spp. infections have been described more frequently. Aim: To characterize the epidemiological data of candidemia in recent years. Methods: A retrospective study of adult patients in a University Hospital in Santiago, Chile, with 1 or more documented episodes of candidemia, from January 2000 to December 2013. Results: One hundred and twenty episodes of candidemia were identified in 120 patients, annual incidence of 0.4 cases per 1000 discharges, 53.3% were male patients, 58.3% > 60 years, 77,5% had at least one co-morbidity. Candida albicans was the species most frequently identified 55%, followed by C. glabrata 18.3%, C. tropicalis 11.7% and C. parapsilosis 9.2%. Comparing 2000-2006 vs 2007-2013, increased the frequency of C. parapsilosis among non-albicans and echinocandins prescription. Patients with C. albicans showed higher APACHE-II, more requirement for invasive mechanical ventilation, greater association with CVC, and shorter incubation time compared with non-albicans species. The 30-day mortality was 31.7%. Conclusions: During this 14-years period we observed that C. albicans was the predominant specie and more recently a change among C. non-albicans increasing C. parapsilosis and decreasing C. glabrata 30-days and attributable mortality decreased together with more echinocandins prescription.

Introducción: Las infecciones invasoras por Candida spp. se describen cada vez con mayor frecuencia. Objetivo: Precisar datos epidemiológicos de candidemia en nuestro hospital en los últimos años. Metodología: Estudio retrospectivo de pacientes adultos de un hospital universitario en Santiago, Chile, con un o más episodios de candidemia, acaecidas desde enero de 2000 a diciembre de 2013. Resultados: Se identificaron 120 episodios de candidemia, incidencia anual 0,4 casos x 1.000 egresos, 53,3% pacientes masculinos, 58,3% > 60 años y 77,5% presentaban al menos una co-morbilidad. Candida albicans fue la especie más frecuente (55%), seguida por C. glabrata (18,3%), C. tropicalis (11,7%) y C. parapsilosis (9,2%). Los tiempos de incubación e identificación fueron más prolongados para C. glabrata. Al comparar el período 2000-2006 vs 2007-2013, aumentó la frecuencia de C. parapsilosis entre las C. no-albicans y el uso de equinocandinas. Los pacientes con C. albicans presentaban puntaje APACHE-II más elevado, mayor requerimiento de ventilación mecánica invasora, mayor asociación a CVC y menor tiempo de incubación respecto C. no-albicans. La mortalidad a 30 días fue de 31,7%. Conclusiones: Durante este período de 14 años observamos predominio de C. albicans y en el período reciente incremento de C. parapsilosis con disminución de C. glabrata, una disminución de mortalidad global y atribuible junto a mayor uso de equinocandinas.

Candida parapsilosis: principal causa de candidemia en un hospital de referencia para adultos de Costa Rica / Candida parapsilosis: a major cause of bloodstream infection in a tertiary care hospital in Costa Rica

Background: Invasive Candida bloodstream infections are frequent and display high mortality in clinical practice. There is scarce published on this topic in Central America. Objective: To characterize the epidemiology of candidemia in a hospital setting in Costa Rica. Methods: 210 cases of nosocomial candidemia were analyzed in patients over 17 years of age, admitted to Hospital Mexico, between 2007 and 2011. Descriptive and temporary analyses were performed and the risk factors associated with C. parapsilosis and survival were evaluated. Results: The incidence rate of candidemia was 1.47 cases per 1,000 admissions. The non-albicans Candida represented 62% of the isolated yeasts. Except for 2009, C. parapsilosis was the most commonly isolated species in four out of the five years reviewed, followed by C. albicans. There was a strong association between C. parapsilosis, the presence of a central venous catheter (OR: 4.8, CI 95%: 1.8-14.6, p < 0.001) and the use of parenteral nutrition (p: 0.008). The 30-day mortality was 50%. Candida albicans displayed the highest mortality and C. parapsilosis the lowest. Patients who did not receive anti-fungal treatment showed a significantly higher probability of death. Conclusions: The high incidence of candidemia from C. parapsilosis is directly related to the use of central venous catheters and parenteral nutrition. There is a need for creating local guidelines addressing the use of central venous catheters and parenteral nutrition, as well as implementing hand hygiene protocols.

Introducción: Las infecciones invasoras por Candida son frecuentes y de alta mortalidad. Existe poca información publicada de la región centroamericana. Objetivo: Caracterizar la epidemiología de la candidemia en un hospital de Costa Rica. Métodos: Se analizaron 210 episodios de candidemia nosocomial en pacientes sobre 17 años de edad, entre los años 2007 y 2011. Se realizó un análisis descriptivo y temporal de la serie y evaluación de las características clínicas asociadas haciendo énfasis en C. parapsilosis. Resultados: La incidencia acumulada de candidemia fue 1,47 casos/1.000 admisiones. Las especies de Candida no albicans constituyeron 62% de las levaduras aisladas. Exceptuando el año 2009, C. parapsilosis fue la especie predominante en cuatro de los cinco años estudiados, seguida por C. albicans. Se demostró una fuerte asociación entre C. parapsilosis, la presencia de catéter venoso central (OR: 4,8, IC 95%: 1,8-14,6, p < 0,001) y el uso de nutrición parenteral (p: 0,008). La mortalidad a 30 días fue de 50%. Candida albicans mostró la mortalidad más alta y C. parapsilosis la más baja. Los pacientes que no recibieron tratamiento antifúngico presentaron un aumento significativo en la mortalidad. Conclusiones: La incidencia elevada de candidemia por C. parapsilosis está relacionada con los catéteres venosos centrales y la administración de nutrición parenteral. Para su control es necesario establecer guías locales para uso de los catéteres venosos centrales y la nutrición parenteral, así como implementar estrategias para promocionar la higiene de las manos.

Epidemiologia de candidemia en Córdoba Republica Argentina. Estudio de vigilancia de cinco instituciones / [Candidemia epidemiology in Córdoba Argentina. Surveillance study of five institutions].

UNLABELLED: The incidence rate of invasive infections due to Candida species has increased drastically in the last 20 years, causing a 40

mortality rate in hospitalized patients. In order to comprehend the epidemiology of Candida bloodstream infection, the study was carried out. MATERIALS AND METHODS: A retrospective study was done based on microbiology laboratory reports from five terciary care hospitals from the city of Cordoba between January 2010 and August 2012. RESULTS: 158 patients had candidemia, the average age was 55,8 years, and 54

of patients were in the intensive care unit. Candida albicans (44

) and Candida tropicalis (12

) were the main fungi isolated. Candida parapsilosis was commonly associated with catether infections. CONCLUSIONS: The data from the city of Cordoba showed that C. albicans, C. parapsilosis y C. tropicalis were the more frequent species isolated from blood cultures. This is similar to what is seen in other series published from Argentina and Latinamerica. This study may have implications when it comes to deciding which empiric antifugal agent is best for the treatment of candidemia.

Incidencia y prevalencia de candidemia en pacientes críticamente enfermos en Colombia / Incidence and prevalence of candidemia in critically ill patients in Colombia

Introduction: Candidemia is an infectious complication with high morbidity and mortality in intensive care patients. Objective: The aim of this study was to determine the incidence and prevalence of candidemia in critically ill patients in Colombian hospitals between 2004 and 2008. Materials and Methods: Data from microbiologically confirmed candidemia cases, ICU stay and admissions were retrospectively recorded in 7 Colombian hospitals between 2004 and 2008. Time series analysis was performed with monthly incidence (number of cases of candidemia in relation to the number of patient-days) and prevalence (number of cases of candidemia in relation to the number of admissions) for each institution and the whole group. Results: 382 cases of candidemia were identified, with an incidence of 2,3 cases per 1.000 patient-days in ICU, and a prevalence of 1,4%. There was a trend to increased incidence (0,0066 additional cases per 1.000 ICU-days per month) and prevalence (0,0016 additional cases por 100 patients per month) of candidemia. This increase of candidemia cases was due to a rise of non- albicans Candida species, which corresponded to 44% of total isolates. Discusion and Conclusions: Candidemia cases in colombian ICUs are increasing, especially those caused by non albicans Candida species.

Introducción: La candidemia es una complicación con alta morbilidad y mortalidad en pacientes en cuidado intensivo. Objetivo: Determinar la incidencia y prevalencia de candidemia en hospitales colombianos entre 2004 y 2008. Materiales y Métodos: En siete hospitales colombianos se obtuvieron retrospectivamente los datos de candidemia confirmada por el laboratorio y de estancia y egreso en unidades de cuidado intensivo. Se construyeron series de tiempo de densidad de incidencia (definida como el número de casos de candidemias en el mes en relación al número de días-pacientes hospitalizados) y de densidad de prevalencia mensuales (número de casos de candidemias en el mes en relación al número de egresos) para cada institución y para el conjunto de hospitales. Resultados: Se identificaron 3 82 casos, con una incidencia de 2,3 casos por 1.000 días de estancia en UCI, y una prevalencia fue de 1,4%. Se observó una tendencia al aumento en la incidencia (0,0066 casos adicionales por cada 1.000 días de estancia por mes) y en la prevalencia de candidemia (0,0016 casos adicionales por 100 pacientes por mes). El aumento en la prevalencia y en la incidencia se observó a partir de un incremento en las especies de Candida no albicans, la cual correspondió a 44% de los aislados totales. Discusión y conclusiones: La incidencia y la prevalencia de candidemia en Colombia son elevadas y van en aumento, especialmente a expensas de casos de Candida no albicans.

Historical trends in the epidemiology of candidaemia: analysis of an 11-year period in a tertiary care hospital in Brazil

Candida species are an important cause of bloodstream infections (BSI). To evaluate the epidemiological, clinical and microbiological aspects of two cohorts {1994-1999 [period 1 (P1) ]; 2000-2004 [period 2 (P2) ]} of candidaemic patients, we performed a retrospective analysis from a laboratory-based survey. A total of 388 candidaemias were identified, with an incidence of 0.20/1,000 patient-days and a significant increase in P2 vs. P1 (0.25 vs. 0.15, p = 0.04). Cancer and prior antibiotic use were frequent and Candida albicans was the most prevalent species found (42.4%). Resistance to fluconazole was found in 2.47% of the strains. No differences were observed in the species distribution of Candida during the study periods. In the P2 cohort, there were higher prevalence of elderly individuals, cardiac, pulmonary and liver diseases, renal failure, central venous catheters and antibiotic therapy. In P1, there were higher prevalence of neurological diseases and chemotherapy. The crude mortality was 55.4%. In conclusion, our incidence rates remained high. Furthermore, the distribution pattern of Candida species and the fluconazole resistance profile remained unchanged. Moreover, we found a clear trend of higher prevalence of candidaemia among the elderly and among patients with comorbidities. Finally, it is necessary to discuss strategies for the prevention and control of Candida BSI in Brazil.

A review of Candida species causing blood stream infection.

The incidence of candidemia has been on a rise worldwide. The epidemiology of invasive fungal infections in general and of candidemia in particular has changed in the past three decades because of a variety of factors like the AIDS epidemic, increased number of patients receiving immunosuppressive therapy for transplantation and the increasing use of antimicrobials in the hospital setups and even in the community. The important risk factors for candidemia include use of broad-spectrum antimicrobials, cancer chemotherapy, mucosal colonization by Candida species, indwelling vascular catheters like central venous catheters, etc. More than 90% of the invasive infections due to Candida species are attributed to five species-Candida albicans, Candida glabrata, Candida parapsilosis, Candida tropicalis and Candida krusei. However, the list of new species of Candida isolated from clinical specimens continues to grow every year. Early diagnosis and proper treatment is the key for management of candidemia cases.

Colonização fúngica em recém-natos de muito baixo peso: um estudo de coorte / Fungal colonization in newborn babies of very low birth weight: a cohort study

OBJETIVOS: Conhecer o perfil de colonização fúngica e os fatores de risco associados em recém-nascidos prematuros. MÉTODOS: Coorte prospectiva, de 01/04/10 a 31/04/11, com 44 pacientes admitidos na unidade de terapia intensiva neonatal, nascidos na maternidade do hospital, com peso menor que 1.500 g. Na admissão, coletaram-se dados sobre pré-natal e parto. Informações clínico-laboratoriais, swabs nasal, retal e hemocultura periférica foram coletados nos dias 1, 7, 10 e 14 de permanência na unidade de terapia intensiva neonatal e, então, a cada 7 dias até alta ou óbito. Para análise estatística, utilizou-se teste qui-quadrado, exato de Fisher, curva de Kaplan-Meier e modelo de regressão logística. RESULTADOS: A incidência de colonização foi de 13,5/1.000 pacientes/dia. A de candidemia foi de 0,9/1.000 paciente/dia. A média de internamento foi de 30,5 dias (±20,27), sendo o início da colonização, em média, aos 11,13 dias (±8,82). O parto vaginal foi um fator de risco independente para desenvolvimento de colonização fúngica ao longo da internação [p = 0,042; odds ratio = 4,38; intervalo de confiança de 95% (IC95%) = 1,13-16,99]. Da mesma forma, a leucocitose (> 30.000/mm3) na admissão foi um sinalizador para a presença concomitante de colonização (p = 0,048). A presença de displasia broncopulmonar tende a ser um fator de maior chance para desenvolvimento de colonização (p = 0,067). O sítio de colonização mais acometido foi a mucosa retal: 89,09 versus 10,9% da nasal. CONCLUSÃO: Parto vaginal e leucocitose acima de 30.000/mm3 na admissão foram fatores de risco para colonização fúngica no decorrer da hospitalização.

OBJECTIVES: To learn about the profile of fungal colonization and related risk factors in premature newborns. METHODS: Prospective cohort, from 04/01/2010 to 04/31/2011, with 44 patients admitted to the neonatal intensive care unit, born at the hospital maternity, weighing less than 1,500 g. On admission, data were collected on pre-natal care and childbirth. Clinical and laboratory information, nasal and rectal swabs, and peripheral blood cultures were collected on days 1,7,10 and 14 of stay in neonatal intensive care unit and then, every 7 days until discharge or death. For statistical analysis, we used chi-square test, Fisher exact test, Kaplan-Meier and logistic regression model. RESULTS: The incidence of colonization was 13.5/1,000 patients/day. The incidence of candidemia was 0.9/1,000 patients/day. The average hospitalization time was 30.5 days (± 20.27), and the onset of colonization occurred, in average, at 11.13 days (±8.82). Vaginal delivery was found to be an independent risk factor for the development of fungal colonization during hospitalization (p = 0.042, odds ratio = 4.38, 95% confidence interval [95%CI] = 1,13-16,99). Likewise, leukocytosis (> 30,000/mm3) on admission was an indicator for the simultaneous presence of fungal colonization (p = 0.048). The presence of bronchopulmonary dysplasia tends to be a factor of higher probability for the development of colonization (p = 0.067). The most affected colonization site was the rectal mucosa: 89.09 versus 10.9% of the nasal mucosa. CONCLUSION: Vaginal delivery and leukocytosis over 30,000/mm3 on admission were found to be risk factors for fungal colonization during hospitalization.

Candiduria in catheterized intensive care unit patients : Emerging microbiological trends.

Objectives: Urinary tract infection (UTI) as a result of Candida spp. is becoming increasingly common in hospitalized setting. Clinicians face dilemma in differentiating colonization from true infection and whether to treat candiduria or not. The objective of the present study was to look into the significance of candiduria in catheterized patients admitted in the ICUs and perform microbiological characterization of yeasts to guide treatment protocols. Materials and Methods: One hundred consecutive isolates of Candida spp. from the urine sample of 70 catheterized patients admitted in the ICU were collected and stocked for further characterization. A proforma was maintained containing demographic and clinical details. Blood cultures were obtained from all these 70 patients and processed. Species identification of yeasts was done on VITEK. Results: Candiduria was more common at extremes of age. The mean duration of catheter days was 11.1 ± 6 days. Other associated risk factors such as diabetes mellitus and antibiotic usage were seen in 38% and 100% of our study group. Concomitant candidemia was seen in 4.3% of cases. Non-albicans Candida spp. (71.4%) emerged as the predominant pathogen causing nosocomial UTI. Conclusion: The present study reiterates the presence of candiduria in catheterized patients, especially in the presence of diabetes and antibiotic usage. Non-albicans Candida spp. are replacing Candida albicans as the predominant pathogen for nosocomial UTI. Hence, we believe that surveillance for nosocomial candiduria should be carried out in hospitalized patients.

Candidemia epidemiology and susceptibility profile in the largest Brazilian teaching hospital complex

INTRODUCTION: Although the spectrum of fungi causing bloodstream fungal infections continues to expand, Candida spp. remains responsible for the majority of these cases. OBJECTIVE: The purpose of this study was to characterize the candidemia epidemiology, species distribution and antifungal susceptibility patterns at a Brazilian tertiary teaching public hospital with 2,500 beds. METHODS: Records from the microbiology laboratory were used to identify patients with positive blood cultures during 2006. The in vitro activity of amphotericin B, caspofungin, itraconazole, fluconazole, voricanozole, and posaconazole were determined using the Etest method. RESULTS: One hundred and thirty-six cases of candidemia were identified and 100 strains were available for antifungal susceptibility testing. The overall incidence of candidemia was 1.87 cases/1.000 admissions and 0.27 cases/1.000 patient-days. Among the patients, 58.1 percent were male, and the median age was 40 years old. C. albicans was the most common species (52.2 percent), followed by C. parapsilosis (22.1 percent), C. tropicalis (14.8 percent), and C. glabrata (6.6 percent). All strains were susceptible to amphotericin B with a MIC90 of 0.5 µg/mL. Overall susceptibility for voriconozole, fluconazole, and caspofungin was > 97 percent with a MIC90 of 0.064, 4.0 and 1.0 µg/mL, respectively. For itraconazole the susceptibility rate was 81 percent with a MIC90 of 0.5 µg/mL. Posaconazole also demonstrated good in vitro activity with a MIC90 of 0.25 µg/mL. CONCLUSION: This is the first antifungal susceptibility report in our institution.