Research Article

Changes of Proteases, Antiproteases, and Pathogens in Cystic Fibrosis Patients’ Upper and Lower Airways after IV-Antibiotic Therapy

Table 1

Clinical, microbiological, and serological characteristics of included patients and healthy controls.

Nominal variablesAbsolute frequency

Cystic fibrosis patients
Gender (female)1710 (58.8%)
Nasal polyps175 (29.4%)
History of sinonasal surgery176 (35.3%)
Chronic rhinosinusitis175 (29.4%)
Allergy
Aspergillus fumigatus 177 (41.2%)
 House dust mite3 (17.6%)
 Grass pollen2 (11.8%)
 Pet hair (cat/dog)2 (11.8%)/1 (5.9%)
ABPA172 (11.8%)
Allergic rhinitis172 (11.8%)
Diabetes mellitus175 (29.4%)
IV-antibiotics19
 Tobramycin18 (94.7%)
 Ceftazidime9 (47.4%)
 Tazobactam/piperacillin4 (21.1%)
 Colistin1 (5.3%)
 Meropenem6 (31.6%)
Therapy
 Current azithromycin1712 (70.6%)
 Current oral antibiotics9 (52.9%)
 Current inhalative antibiotics16 (94.1%)
 Recombinant DNAse10 (58.8%)
 Nasal topical bronchial steroids8 (47.1%)
 Current oral antimycotics10 (58.8%)
Chronic colonization of UAW with*1
P. aeruginosa permanent174 (23.5%)
P. aeruginosa intermittent4 (23.5%)
Chronic colonization of LAW with*1
P. aeruginosa permanent175 (29.4%)
P. aeruginosa intermittent3 (17.6%)
UAW: detection of *212 (63.2%)
P. aeruginosa (mucoid)196 (31.6%)
P. aeruginosa (nonmucoid)4 (21.1%)
S. aureus 2 (10.5%)
MRSA 2 (10.5%)
LAW: detection of *216 (84.2%)
P. aeruginosa (mucoid)199 (47.4)
P. aeruginosa (nonmucoid)7 (36.8%)
S. aureus 3 (15.8%)
MRSA 2 (10.5%)
P. aeruginosa serum antibodies positive:8 (50.0%)
 Alkaline protease/borderline168 (50%)/2 (12.5%)
 Exotoxin A/borderline9 (56.3%)/1 (6.3%)
 Elastase/borderline9 (56.3%)/1 (6.3%)

Healthy controls
Gender (female)20 15 (75%)
Allergic rhinitis1 (5%)
Allergy in general4 (20%)
Postnasal drip4 (20%)
History of ORL surgery5 (25%)
Snore3 (15%)

*1Permanent and intermittent colonization were stated using the criteria published by Lee et al. [34]. Chronic colonization is defined if 50% or more of cultures within the last year were found positive and intermittent if less than 50% of cultures within the last year were found positive.
*2At inclusion date.