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Published on: June 13, 2018
[Cutaneous colonization by Malassezia spp. in neonates]
T Juncosa Morros1, A González-Cuevas, J Alayeto Ortega
1Servicio de Microbiología. Hospital Sant Joan de Déu. Barcelona. España. tjuncosa@hsjgvcn.org
Background:
Malassezia spp. is a lipophilic yeast considered to be a normal component of the human skin flora. It has been associated with sepsis in patients receiving intravenous infusion of lipid emulsions through central venous catheters (CVC). Current evidence indicates a high rate of skin colonization in healthy adults, in contrast with the low rate of colonization in prepubertal children. Of note is the high prevalence of colonized infants in the neonatal intensive care unit (NICU).
Methods:
We performed a prospective open observational study of colonization in all infants admitted to the NICU during a nine-month period (October 1997-June 1998). Length of stay in the unit, birthweight and the use of CVC for parenteral fat infusion were evaluated.
Results:
Seventy-seven neonates were included in the study. The mean length of stay in the NICU was 24 days. A total of 63.6 % weighed less than 2,500 g at birth and 72 % were given parenteral nutrition supplemented with fat emulsion through a CVC. The overall rate of colonization in the unit was 41.5 and 75 % of the patients became colonized within the first two weeks of admission.
Conclusions:
These data emphasize the need for preventive measures to reduce the transmission of these yeasts in the NICU and to prevent the occurrence of neonatal sepsis due to Malassezia spp. in immunologically immature infants.
Insights
Neonatal intensive care unit (NICU) infants show high Malassezia yeast colonization rates, especially with central venous catheter (CVC) use. This highlights the urgent need for preventive strategies to avoid neonatal sepsis.
Area of Science:
- Medical Mycology
- Neonatal Medicine
- Infectious Diseases
Background:
- Malassezia spp. is a common skin yeast, but can cause sepsis in patients with central venous catheters (CVCs).
- Infant colonization rates are high in neonatal intensive care units (NICUs), unlike in older children.
- Premature infants in the NICU are particularly susceptible to Malassezia colonization.
Purpose of the Study:
- To investigate the colonization rate of Malassezia yeasts in infants admitted to the NICU.
- To identify risk factors associated with Malassezia colonization in this vulnerable population.
Main Methods:
- A prospective observational study was conducted over nine months in a NICU.
- Colonization was assessed in all admitted infants.
- Factors evaluated included length of stay, birth weight, and use of CVC for parenteral fat infusion.
Main Results:
- Seventy-seven neonates were studied; 63.6% had low birth weight (<2,500g).
- Central venous catheter use for fat emulsion was common (72%).
- The overall Malassezia colonization rate was 41.5%, with 75% colonized within two weeks of admission.
Conclusions:
- High rates of Malassezia colonization in NICU infants underscore the risk of fungal sepsis.
- Preventive measures are crucial to reduce yeast transmission and prevent sepsis in immunocompromised neonates.
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