Risk factors for mortality after linezolid treatment of vancomycin-resistant Enterococcus bloodstream infection.
Int J Infect Dis
; 129: 96-102, 2023 Apr.
Article
in En
| MEDLINE
| ID: mdl-36736576
OBJECTIVES: We analyzed the risk factors affecting linezolid treatment outcome in vancomycin-resistant Enterococcus (VRE) bloodstream infection (BSI). METHODS: We conducted a multicenter observational study of patients who received linezolid 600 mg every 12 hours for VRE BSI. The primary outcome was 28-day mortality. The estimated area under the concentration-time curve and trough concentration were calculated. Multivariable logistic regression was used for the outcome analysis. RESULTS: A total of 170 patients were included: 114 (67.1%) survived and 56 (32.9%) did not. A total of 26 (18.2%) isolates showed a linezolid minimum inhibitory concentration (MIC) of ≤1 mg/l, 113 (79.0%) of 2 mg/l, and 4 (2.8%) of 4 mg/l. The univariable analysis showed that the linezolid MIC and concentration-time curve/MIC were not associated with mortality (P = 0.95 and P = 0.42, respectively). After adjusting for underlying comorbidity and disease severity, the linezolid dose per body weight (LDBW), body height, and interaction between them were independent risks for mortality. Marginal analysis showed that increasing the LDBW was protective in patients with a body height <160 cm. A trough concentration of >12.2 mg/l was a risk factor for thrombocytopenia. CONCLUSION: The LDBW and body height were interactively associated with clinical outcomes of linezolid treatment for VRE BSI.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Gram-Positive Bacterial Infections
/
Bacteremia
/
Daptomycin
/
Vancomycin-Resistant Enterococci
Type of study:
Clinical_trials
/
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limits:
Humans
Language:
En
Journal:
Int J Infect Dis
Journal subject:
DOENCAS TRANSMISSIVEIS
Year:
2023
Document type:
Article
Affiliation country:
Taiwán
Country of publication:
Canadá