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ORIGINAL RESEARCH

Carbapenem-Resistant Klebsiella pneumoniae Infection and Its Risk Factors in Older Adult Patients

, , , , , , , & ORCID Icon show all
Pages 1037-1045 | Received 28 Jan 2023, Accepted 08 May 2023, Published online: 06 Jul 2023
 

Abstract

Introduction

Carbapenem-resistant Klebsiella pneumoniae (CRKP) infection has recently gained worldwide interest due to limited treatment options and high morbidity and mortality rates. The aim of this study was to determine the risk factors of carbapenem-resistant K. pneumoniae (CRKP) infection in older adult patients.

Material and Methods

This retrospective, single-center study included 132 patients with healthcare-associated CRKP infection (case group) and 150 patients with healthcare-associated carbapenem-susceptible K. pneumoniae (CSKP) infection (control group), aged > 65 years.

Results

In the CRKP and CSKP groups, 79 (59.8%) and 80 (53.3%) patients were males, and the mean ages were 77.8 ± 7.8 and 76.6 ± 7.7 years, respectively. Diabetes mellitus (DM), malignancy, cardiovascular diseases (CVDs), surgical intervention, invasive mechanical ventilation, central venous catheter insertion, parenteral nutrition, hospitalization in the previous 6 months, antibiotic use in the previous 3 months, and exposure to cephalosporins, fluoroquinolones, and carbapenems were significantly more common in the CRKP than the CSKP group (all p < 0.05). The multivariate logistic regression analysis identified malignancy, CVDs, DM, invasive mechanical ventilation, hospitalization in the previous 6 months, ICU admission, and exposure to cephalosporins, quinolones, and carbapenems as independent risk factors for CRKP infection in older adult patients.

Conclusion

DM, malignancy, CVDs, ICU admission, invasive mechanical ventilation, and exposure to ceftriaxone, fluoroquinolones, and carbapenems were independent risk factors for CRKP infection in older adult patients. The identification of risk factors for CRKP infection can help to prevent and treat CRKP infection.

Data Sharing Statement

The data that support the findings are available from the corresponding author (Fatma Çölkesen) upon reasonable request.

Ethics Approval

The study was approved by the Local Ethics Committee of Konya Training and Research Hospital of University of Health Sciences (no: 08/01/2019/28-20) and conducted in accordance with the Declaration of Helsinki (2013). Patients’ demographic characteristics, medical history, and laboratory values were retrospectively collected from electronic medical records. The ethics committee does not require patient consent for data from the electronic registry system retrospectively. Data, photographs, etc. that may reveal the identity of the patients were not included in the article.

Author Contributions

All authors made a significant contribution to the work reported, whether that is in the conception, study design, execution, acquisition of data, analysis and interpretation, or in all these areas; took part in drafting, revising or critically reviewing the article; gave final approval of the version to be published; have agreed on the journal to which the article has been submitted; and agree to be accountable for all aspects of the work.

Disclosure

The authors declare that they do not have a conflict of interest.

Additional information

Funding

This study did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sector.