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Colonization of pressure ulcers by multidrug-resistant microorganisms in patients receiving home care
Maria Concetta Cataldo1, Celestino Bonura, Giuseppe Caputo
1Geriatric Assessment and Integrated Home Care Unit , District 10, Local Health Agency Palermo, Palermo, Italy.
Abstract:
Colonization and/or infection with multidrug-resistant microorganisms (MDRO) of pressure ulcers in patients receiving care at home have seldom been investigated. The objective of this study was to assess the prevalence of MDRO colonization in pressure ulcers of patients receiving home care in Palermo, Italy. Vancomycin-resistant Enterococcus (VRE), methicillin-resistant Staphylococcus aureus (MRSA), and multidrug-resistant Gram-negative bacilli (MDRGN) were isolated, identified, and characterized from pressure ulcers and selected home environment surfaces. Thirty-two patients were enrolled, of whom 12 were under antimicrobial therapy. Five patients had been admitted to hospital in the preceding year. Nineteen patients tested positive for 1 or more MDROs. In particular, 1 patient was colonized by a vanA-containing strain of VRE, 5 by MRSA, and 17 by MDRGN of different species. Our findings suggest that pressure ulcers in home care patients could play a role in bringing MDROs into the community setting.
Insights
Multidrug-resistant microorganisms (MDRO) are prevalent in home care patients with pressure ulcers. These findings highlight the role of pressure ulcers in spreading MDROs within the community.
Area of Science:
- Infectious Diseases
- Microbiology
- Public Health
Background:
- Colonization of pressure ulcers by multidrug-resistant microorganisms (MDRO) in home care settings is understudied.
- Understanding MDRO prevalence is crucial for infection control in community-based care.
Purpose of the Study:
- To determine the prevalence of MDRO colonization in pressure ulcers of home care patients.
- To identify specific MDROs, including vancomycin-resistant Enterococcus (VRE), methicillin-resistant Staphylococcus aureus (MRSA), and multidrug-resistant Gram-negative bacilli (MDRGN).
Main Methods:
- Prospective study involving 32 home care patients with pressure ulcers in Palermo, Italy.
- Isolation and characterization of MDROs from wound swabs and environmental surfaces.
- Data collection on patient history, including recent hospital admissions and antimicrobial therapy.
Main Results:
- Nineteen out of 32 patients (59%) tested positive for at least one MDRO.
- Prevalence included 1 VRE, 5 MRSA, and 17 MDRGN isolates.
- MDROs were detected in pressure ulcers and home environment samples.
Conclusions:
- Pressure ulcers in home care patients are a significant reservoir for MDROs.
- These findings suggest that pressure ulcers may facilitate the introduction of MDROs into the community.
- Implications for infection prevention strategies in home healthcare are significant.
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