Objectives: This retrospective case-control study aims to evaluate the clinical outcomes of patients diagnosed with nosocomial carbapenem-resistant
Klebsiella infection (CRK), identify risk factors of this infection, and determine mortality rate.
Patients and methods: The study group consisted of 54 patients (23 males, 31 females; mean age 53.05±11.3 years, range, 18 to 82 years) diagnosed
with CRK infection between January 2014 - July 2018. The control group was randomly selected among patients matched for gender who were
hospitalized within the same period (±15 days) and had nosocomial infection but without CRK growth in cultures.
Results: Nosocomial CRK infection was most prevalent among the intensive care unit (90.75%). Mechanical ventilation, tracheostomy, presence of
nasogastric tube, central venous catheter, elderly age (≥65 years), H2 receptor antagonist treatment, total parenteral nutrition, hospitalization within
the past six months, antibiotic use within three months prior to CRK infection, and use of more than two antibiotic groups were identified as risk factors
for development of CRK infection. Total mortality rate of the patient group was 31.48%.
Conclusion: In order to prevent spread of nosocomial CRK infections, which has gradually narrowing treatment options, there is a need for further
prospective multicenter studies on reducing invasive procedures and inappropriate antibiotic use, identifying correctible risk factors, and taking
necessary corrective measures.
Keywords: Carbapenem-resistant Klebsiella infection, mortality, nosocomial infection, risk factors.