Utility of Active Surveillance for MRSA with Molecular Typing to Assess Transmission in a Neonatal Intensive Care Unit

2014 ◽  
Vol 42 (6) ◽  
pp. S26-S27
Author(s):  
Michele S. Fleming ◽  
Yvette Major ◽  
Susan Lewis ◽  
Janis Ober ◽  
Gonzalo Bearman ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Neonatal Intensive Care Unit ◽  
Active Surveillance ◽  
Molecular Typing ◽  
Neonatal Intensive Care

Control of an Outbreak of Pandrug-ResistantAcinetobacter baumanniiColonization and Infection in a Neonatal Intensive Care Unit

2007 ◽  
Vol 28 (4) ◽  
pp. 423-429 ◽  
Author(s):  
Pei-Chun Chan ◽  
Li-Min Huang ◽  
Hui-Chi Lin ◽  
Luan-Yin Chang ◽  
Mei-Ling Chen ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Hand Hygiene ◽  
Neonatal Intensive Care Unit ◽  
Active Surveillance ◽  
Healthcare Workers ◽  
Neonatal Intensive Care ◽  
Control Measures ◽  
Positive Culture Result ◽  
Mode Of Transmission

Objective.To investigate the potential reservoir and mode of transmission of pandrug-resistant (PDR)Acinetobacter baumanniiin a 7-day-old neonate who developed PDRA. baumanniibacteremia that was presumed to be the iceberg of a potential outbreak.Design.Outbreak investigation based on a program of prospective hospital-wide surveillance for nosocomial infection.Setting.A 24-bed neonatal intensive care unit in a 2,200-bed major teaching hospital in Taiwan that provides care for critically ill neonates born in this hospital and those transferred from other hospitals.Interventions.Samples from 33 healthcare workers' hands and 40 samples from the environment were cultured. Surveillance cultures of anal swab specimens and sputum samples were performed for neonates on admission to the neonatal intensive care unit and every 2 weeks until discharge. The PDRA. baumanniiisolates, defined as isolates resistant to all currently available systemic antimicrobials except polymyxin B, were analyzed by pulsed-field gel electrophoresis. Control measures consisted of implementing contact isolation, reinforcing hand hygiene adherence, cohorting of nurses, and environmental cleaning.Results.One culture of an environmental sample and no cultures of samples from healthcare workers' hands grew PDRA. baumannii. The positive culture result involved a sample obtained from a ventilation tube used by the index patient. During the following 2 months, active surveillance identified PDRA. baumanniiin 8 additional neonates, and isolates from 7 had the same electrokaryotype. Of the 9 neonates colonized or infected with PDRA. baumannii, 1 died from an unrelated condition. Reinforcement of infection control measures resulted in 100% adherence to proper hand hygiene protocol. The outbreak was stopped without compromising patient care.Conclusions.In the absence of environmental contamination, transient hand carriage by personnel who cared for neonates colonized or infected with PDRA. baumanniiwas suspected to be the mode of transmission. Vigilance, prompt intervention and strict adherence to hand hygiene protocol were the key factors that led to the successful control of this outbreak. Active surveillance appears to be an effective measure to identify potential transmitters and reservoirs of PDRA. baumannii.

Outbreak of Methicillin-Resistant Staphylococcus aureus Colonization and Infection in a Neonatal Intensive Care Unit Epidemiologically Linked to a Healthcare Worker With Chronic Otitis

2006 ◽  
Vol 27 (6) ◽  
pp. 581-585 ◽  
Author(s):  
Mary L. Bertin ◽  
Joan Vinski ◽  
Steven Schmitt ◽  
Camille Sabella ◽  
Lara Danziger-Isakov ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Staphylococcus Aureus ◽  
Intensive Care ◽  
Neonatal Intensive Care Unit ◽  
Molecular Typing ◽  
Neonatal Intensive Care ◽  
Outbreak Strain ◽  
Methicillin Resistant ◽  
Surveillance Cultures ◽  
Mrsa Colonization

Objective.To describe the investigation and interventions necessary to contain an outbreak of methicillin-resistant Staphylococcus aureus (MRSA) colonization and infection in a neonatal intensive care unit (NICU).Design.Retrospective case finding that involved prospective performance of surveillance cultures for detection of MRSA and molecular typing of MRSA by repetitive-sequence polymerase chain reaction (rep-PCR).Setting.Level III NICU in a tertiary care center.Participants.Three neonates in a NICU were identified with MRSA bloodstream infection on April 16, 2004. A point prevalence survey identified 6 additional colonized neonates (attack rate, 75% [9 of 12 neonates]). The outbreak strain was phenotypically unusual.Interventions.Cohorting and mupirocin therapy were initiated for neonates who had acquired MRSA during the outbreak. Contact precautions were introduced in the NICU, and healthcare workers (HCWs) were retrained in cleaning and disinfection procedures and hand hygiene. Noncolonized neonates and newly admitted patients had surveillance cultures performed 3 times per week.Results.Two new colonized neonates were identified 1 month later. HCW X, who had worked in the NICU since June 2003, was identified as having chronic otitis. MRSA was isolated from cultures of swab specimens from HCW X's ear canal and nares. HCW X was epidemiologically linked to the outbreak. Molecular typing (by rep-PCR) confirmed that the isolates from HCW X and from the neonates were more than 90% similar. Retrospective review of NICU isolates revealed that the outbreak strain was initially cultured from a neonate 2 months after HCW X began working on the unit. The epidemic strain was eradicated after removing HCW X from patient care in the NICU.Conclusion.An outbreak of MRSA colonization and infection in a NICU was epidemiologically linked to a HCW with chronic otitis externa and nasal colonization with MRSA. Eradication was not achieved until removal of HCW X from the NICU. Routine surveillance for MRSA may have allowed earlier recognition of the outbreak and is now standard practice in our NICU.

scholarly journals Efficacy of a coordinated strategy for containment of multidrug-resistant Gram-negative bacteria carriage in a Neonatal Intensive Care Unit in the context of an active surveillance program

2020 ◽  
Author(s):  
Laura Saporito ◽  
Giorgio Graziano ◽  
Federica Mescolo ◽  
Emanuele Amodio ◽  
Vincenzo Insinga ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Neonatal Intensive Care Unit ◽  
Active Surveillance ◽  
Neonatal Intensive Care ◽  
Multidrug Resistant ◽  
Surveillance Program ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Active Surveillance Program

Abstract Background: Antimicrobial resistance in Neonatal Intensive Care Unit (NICU) patients is a threat, due to the large use of antimicrobial treatment and invasive devices in fragile babies.Since 2014 an active surveillance program of multidrug-resistant Gram-negative bacteria (MDR-GNB) carriage is in place in the five NICUs of Palermo, Italy. In 2017 an increase in the prevalence of MDR-GNB and in particular of extended-spectrum β-lactamases-producing Klebsiella pneumoniae (ESBL-KP) was observed in “Civico” hospital NICU.Aim: To estimate the impact of a coordinated intervention strategy in achieving long-lasting reduction of MDR-GNB prevalence in the NICU.Methods: Rectal swabs were obtained monthly and processed to detect MDR-GNB using standard methods. MDR-GNB were characterized by pulsed-field gel electrophoresis (PFGE). From November 2017 the following intervention measures were applied: a) two-months strengthening of sample collection; b) stakeholders’ meetings; c) improvement of prevention measures and antimicrobial policy.Findings: During the strengthened microbiological surveillance MDR-GNB and ESBL-KP were detected in rectal swabs (34.8%; 23.2%), nasal swabs (24.6%; 14.5%), oral swabs (14.5%; 5.4%), milk samples (32.1%; 17.9%), soother swabs (30.8%; 17.9%) and from a sub-intensive room surface. Thirteen ESBL-KP strains isolated from clinical and environmental samples showed identical PFGE patterns.Prevalence of MDR-GNB and ESBL-KP carriage significantly decreased in the year after intervention compared to the previous year (20.6% vs 62.2 %; p<0.001 and 11.1% vs 57.8%; p<0.001). MDR-GNB were not detected for three months and ESBL-KP for five months. Multivariate analysis of principal exposure variables showed that admission in post-intervention period significantly reduced the risk of MDR-GNB carriage (adj-OR=0.21, 95% CI=0.076-0.629; p<0.001).Conclusions: MDR-GNB broadly circulate in NICU setting and can colonize different body sites and spread by various vehicles. A coordinated strategy of multiple interventions with active cooperation between epidemiologists and clinicians in the NICU can effectively reduce their circulation and in particular the carriage of most dangerous ESBL-KP strains.

scholarly journals EPIDEMIOLOGY OF CANDIDA SPECIES IN THE NEONATAL INTENSIVE CARE UNIT USING MOLECULAR TYPING OF CHROMOSOMAL DNA † 1312

1997 ◽  
Vol 41 ◽  
pp. 221-221
Author(s):  
Michael A. Friedman ◽  
Deborah J. Tuttle ◽  
John P. Piper ◽  
Kathleen Leef ◽  
Donna Berg ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Neonatal Intensive Care Unit ◽  
Molecular Typing ◽  
Candida Species ◽  
Neonatal Intensive Care ◽  
Chromosomal Dna
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