Research Article

Tigecycline Therapy for Nosocomial Pneumonia due to Carbapenem-Resistant Gram-Negative Bacteria in Critically Ill Patients Who Received Inappropriate Initial Antibiotic Treatment: A Retrospective Case Study

Table 1

Demographic and clinical data for the included patients.

VariableTotal
Successful cases
Unsuccessful cases
value

Age, years, mean (SD)74.6 (9.4)74.8 (9.6)74.4 (9.8)0.93
Male, (%)22 (71.0)13 (86.7)9 (56.3)0.113
APACHE II score, median (IQR)19.0 (15.0–19.0)15.0 (13.5–19.0)19.0 (18.0–20.0)0.04
SOFA score, mean (SD)3.5 (1.1)3.1 (0.8)3.8 (1.2)0.16
Severe sepsis/septic shock, (%)11 (35.5)5 (33.3)6 (37.5)1.0
VAP, (%)10 (32.3)4 (26.7)6 (37.5)0.704
ICU LOS before TGC, day, median (IQR)8 (1–13)7 (0.5–10.0)9 (6.3–14.5)0.16

Comorbidities, (%)
COPD16 (51.6)7 (46.7)9 (56.3)0.724
Bronchiectasis3 (9.8)1 (6.7)2 (12.5)1.0
CHF8 (25.8)5 (33.3)3 (18.8)0.433
Diabetes5 (16.1)1 (6.7)4 (25.0)0.333
Cerebral apoplexy3 (9.8)2 (13.3)1 (6.25)0.60
Immunosuppressive status5 (16.1)3 (20.0)2 (12.5)0.654
Comorbidities >117 (54.8)10 (66.7)7 (43.8)0.285

Responsible pathogens, (%)
Acinetobacter baumannii21 (67.7)9 (60.0)12 (75.0)0.458
Klebsiella pneumoniae5 (16.1)3 (20.0)2 (12.5)0.654
Escherichia coli3 (9.7)1 (6.7)2 (12.5)1.0
Stenotrophomonas maltophilia2 (6.5)02 (12.5)0.484

Type of initial empiric antibiotics, (%)
Cephalosporin4 (12.9)1 (6.7)3 (18.8)0.60
Combination β-lactam/β-lactamase inhibitor12 (38.7)6 (40.0)6 (37.5)1.0
Carbapenem15 (48.4)10 (66.7)5 (31.3)0.076
Fluoroquinolone9 (29.0)4 (26.7)5 (31.3)1.0
Aminoglycoside8 (25.8)6 (40.0)2 (12.5)0.113
Glycopeptide5 (16.1)1 (6.7)4 (25.0)0.333
Duration of initial treatment with antibiotics, day, median (IQR)13 (7–20)7 (7–14)16 (7–20)0.02
Duration of treatment with TGC, day, mean (SD)14.3 (2.8)12.7 (5.9)15.5 (4.2)0.51
Microbiological eradication, (%)19 (61.3)13 (86.7)6 (37.5)0.009
ICU mortality, (%)14 (45.2)1 (6.7)13 (81.3)0

II: Acute Physiology and Chronic Health Evaluation II, CHF: chronic heart failure, COPD: chronic obstructive pulmonary disease, ICU: intensive care unit, IMV: invasive mechanical ventilation, IQR: interquartile range, TGC: tigecycline, LOS: length of stay, SD: standard deviation, SOFA: Sequential Organ Failure Assessment, and VAP: ventilator-associated pneumonia.
cases versus unsuccessful cases.