Abstract
Objective To study the clinical feature of carbapenem-resistant klebsiella pneumoniae (CRKP) neonatal sepsis. Method From January 2012 to December 2017, clinical data of newborns with klebsiella pneumoniae (Kp) sepsis admitted to the NICU of our hospital were retrospectively analyzed. Clinical manifestations, laboratory examinations, risk factors, treatments and outcomes were compared between newborns with CRKP sepsis and newborns with carbapenem-sensitive klebsiella pneumoniae (CSKP) sepsis. Result A total of 71 strains of Kp were isolated, representing 33.2% of all isolated pathogens (71/214). Among 71 newborns diagnosed with Kp sepsis, 35 were CRKP sepsis and the other 36 were CSKP sepsis. The incidence of dyspnea/apnea in CRKP group was significantly higher than CSKP group (85.7% vs. 55.6%, P=0.005). Newborns in CRKP group had smaller gestational age than CSKP group. The proportions of male gender, the incidences of continuous positive airway pressure treatment, parenteral nutrition and antibiotics exposure (cephalosporins, penicillins or carbapenems) before the onset of sepsis in CRKP group were higher than CSKP group and the hospital stay before sepsis was longer than CSKP group, the differences were statistically significant (P<0.05). Logistic regression analysis showed that male gender (OR=8.125, 95%CI 2.275~29.021), parenteral nutrition (OR=27.730, 95%CI 2.948~260.858) and carbapenems exposure before onset (OR=4.849, 95%CI 1.091~21.554) were independent risk factors of neonatal CRKP sepsis (P<0.05). The mortality rate of CRKP group was higher than the CSKP group (22.9% vs. 5.6%, P=0.036). Conclusion Male, parenteral nutrition and carbapenems exposure before onset were independent risk factors of neonatal CRKP sepsis. CRKP sepsis is critical and has a high mortality rate. Clinicians should monitor drug resistance carefully, follow antibiotics stewardship principles and establish enteral nutrition as soon as possible. Key words: Klebsiella, pneumoniae; Drug resistance, bacterial; Carbapenems; Sepsis; Infant, newborn
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