Clinical cure and survival in Gram-positive ventilator-associated pneumonia: retrospective analysis of two double-blind studies comparing linezolid with vancomycin

• Published in: Intensive care medicine Vol. 30; no. 3; pp. 388 - 394
• Main Authors: KOLLEF, Marin H, RELLO, Jordi, CAMMARATA, Sue K, CROOS-DABRERA, Rodney V, WUNDERINK, Richard G
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.03.2004; Berlin Springer Nature B.V
• Subjects: Acetamides - therapeutic use; Adult; Aged; Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy; Anti-Infective Agents - therapeutic use; Biological and medical sciences; Cross Infection - drug therapy; Cross Infection - etiology; Cross Infection - mortality; Female; Gram-Positive Bacterial Infections - drug therapy; Gram-Positive Bacterial Infections - etiology; Gram-Positive Bacterial Infections - mortality; Humans; Intensive care medicine; Linezolid; Logistic Models; Male; Medical sciences; Middle Aged; Oxazolidinones - therapeutic use; Pneumonia, Bacterial - drug therapy; Pneumonia, Bacterial - etiology; Pneumonia, Bacterial - mortality; Respiration, Artificial - adverse effects; Retrospective Studies; Survival Analysis; Survival Rate; Vancomycin - therapeutic use; Linezolid; Lung disease; Ventilator; Pneumonia; Intensive care; Respiratory disease; Cure; Vancomycin; Regression analysis; Survival; Gram-positive pneumonia; Meticillin; Gram positive bacteria; Methicillin-resistant Staphylococcus aureus; Double blind study; Bacteria; Micrococcales; Micrococcaceae; Mechanical ventilation; Resuscitation; Staphylococcus aureus
• ISSN: 0342-4642; 1432-1238
• DOI: 10.1007/s00134-003-2088-1

To assess the effect of baseline variables, including treatment, on clinical cure and survival rates in patients with Gram-positive, ventilator-associated pneumonia (VAP). Retrospective analysis of two randomized, double-blind studies. Multinational study with 134 sites. 544 patients with suspected Gram-positive VAP, including 264 with documented Gram-positive VAP and 91 with methicillin-resistant S. aureus (MRSA) VAP. Linezolid 600 mg or vancomycin 1 g every 12 h for 7-21 days, each with aztreonam. Clinical cure rates assessed 12-28 days after the end of therapy and excluding indeterminate or missing outcomes significantly favored linezolid in the Gram-positive and MRSA subsets. Logistic regression showed that linezolid was an independent predictor of clinical cure with odds ratios of 1.8 for all patients, 2.4 for Gram-positive VAP, and 20.0 for MRSA VAP. Kaplan-Meier survival rates favored linezolid in the MRSA subset. Logistic regression showed that linezolid was an independent predictor of survival with odds ratios of 1.6 for all patients, 2.6 for Gram-positive VAP, and 4.6 for MRSA VAP. Initial linezolid therapy was associated with significantly better clinical cure and survival rates than was initial vancomycin therapy in patients with MRSA VAP.