Research Article

A Comparative Study of High-Dose Colistin Administration for the Management of Multidrug-Resistant Gram-Negative Infections in the ICU

Table 1

Patients’ characteristics data.

Colistin dosing
9 MIU daily3 MIU TDS value

Gender
 Male, n (%)11 (64.7%)12 (66.7%)0.999
 Female, n (%)6 (35.3%)6 (33.3%)
Age (mean, range)45.6 ± 18.29 (20–75)54.6 ± 14.61 (26–78)0.115
Comorbidity
 Diabetes mellitus2 (11.8%)5 (27.8%)0.402
 HTN5 (29.4%)6 (33.3%)0.999
 Cerebral infarct or hemorrhage2 (11.8%)4 (22.2%)0..658
 Other CNS complications1 (5.9%)3 (16.7%)0.603
 Heart dysfunction0 (0%)1 (5.3%)0.999
 Solid organ transplantation3 (14.7%)4 (22.2%)0.999
 Chronic pulmonary disease1 (5.9%)1 (5.3%)0.999
Admission diagnosis
 Cerebral infarct or hemorrhage6 (35.3%)8 (44.4%)
 Other CNS complications6 (35.3%)5 (27.8%)
 Trauma1 (5.9%)1 (5.6%)0.986
 GI bleeding1 (5.9%)1 (5.6%)
 HTN crisis3 (17.6%)3 (16.7%)
APACHE II score, mean ± SD21 ± 4.9620.4 ± 4.990.723
CMS duration, median days (IQR)14 (4)14 (10)0.369
ICU duration, median days (IQR)31 (17)29.5 (30)0.859
ICU mortality, all days, n (%)6 (35.29%)4 (22.22%)0.392
Source of infection0.581
 BSI, n (%) of cases3 (17.6%)2 (11.1%)
 VAP, n (%) of cases14 (82.4%)16 (88.9%)
Combination with other antibiotics
 Aminoglycosides36
 Beta-lactams32
 Quinolones33
 Carbapenems87

APACHE, Acute Physiology and Chronic Health Evaluation; BSI, bloodstream infection; CMS, colistimethate sodium; ICU, intensive care unit; MIU, million international units; SD, standard deviation; CNS, central nervous system, CVA, cerebral vascular accident; GI, gastrointestinal; HTN, hypertension; VAP, ventilator-associated pneumonia. MIN; minimum, MAX; maximum. IQR; interquartile range.