Objective: The aim of this study was to identify microorganisms causing ventilator-associated pneumonia (VAP) and also study the antibiotic resistance/susceptibility. Materials and Methods:We retrospectively assessed microorganisms isolated from patients diagnosed with VAP in a pediatric intensive care unit between January 1, 2014, and June 30, 2016. Results:We included 44 patients diagnosed with VAP. The prevalence thereof was 8.6 patients per 1,000 ventilator days. Mechanical ventilation was required for 56.5% of patients. Thirty-three patients (75%) died. An underlying chronic disease was detected in 75% of patients (n=33). Fifty microorganisms were isolated from 44 patients. Single microorganisms were isolated from 86.4% (n=38) and two from 13.6% (n=6) of patients. Of all the isolated bacteria, 96% (n=48) were gram-negative; the most common was Pseudomonas aeruginosa (32%), followed by Klebsiella pneumoniae (24%) and Acinetobacter baumannii (22%). The isolates were most susceptible to colistin (92.6%), followed by piperacillin-tazobactam (71.4%), amikacin (65.2%), and gentamicin (52.2%). No enterobacterium or Acinetobacter strain was resistant to colistin; however, 13% of P. aeruginosa isolates were resistant. Conclusion:In VAP, it is essential to catalog antibiotic resistance patterns of bacteria present in the unit to ensure that empirical antibiotic therapy is effective.Keywords: Ventilator-associated pneumonia, pediatric intensive care, microorganism, antibiotic Bulgular: Çalışmaya VİP tanısı alan 44 hasta alındı. VİP hızı 1000 ventilatör gününde 8,6 olarak saptandı. Mekanik ventilatör kullanım oranı %56,5 idi. VİP tanısı alan olguların %75 (n=33)'nin öldüğü saptandı. VİP tanısı alan hastaların %75 (n=33)'inde altta yatan kronik hastalık tespit edildi. VİP tespit edilen 44 olguda 50 mikroorganizma izole edildi. Olguların %86,4'nda (n=38) tek mikroorganizma, %13.6 (n=6)'nda iki mikroorganizma etken olarak izole edildi. İzole edilen suşların %96' sının (n=48) gram negatif bakteri olduğu saptandı. Çalış-mamızda en sık izole edilen gram negatif ajan Pseudomonas Aeruginosa (%32) iken bunu Klebsiella pneumonia (%24) ve Acinetobacter baumannii (%22) izlemekte idi. Genel antibiyotik duyarlılığı incelendiğinde mikroorganizmaların en hassas olduğu antibiyotikler sırasıyla Kolistin (%92,6), Piperasilin-tazobaktam (% 71,4), Amikasin (%65,2) ve Gentamisin (%52,2) olarak saptandı. Enterobacteriaceae ve Acinetobacter suşlarında Kolistin direnci görülmezken P. aeruginosa izolatlarında, kolistin direnci %13 olarak saptandı.Sonuç: Ventilatör ilişkili pnömonidee, etkili ampirik antibiyotik tedavisi için her ünitenin kendi florasının direnç özelliklerini bilmesi gerekmektedir.Anahtar Kelimeler: Ventilatör ilişkili pnömoni, çocuk yoğun bakım, mikroorganizma, antibiyotik Eurasian J Med

Objective:We compared the protective effects of secure Chlorhexidine Gluconate (CHG)-containing dressings with those of non-antimicrobial transparent dressings.Methods:This prospective, comparative, single-center clinical study was conducted in a tertiary pediatric intensive care unit from October 2014 to March 2017. The inclusion criterion was catheterization of the jugular vein for ≥48 hour. The study was conducted in two phases. Non-antimicrobial standard dressings were applied both before and after the CHG- dressing phase to negate any coincidental temporal effect. During the standard-dressing phases, the dressings did not include any antimicrobial; transparent CHG-impregnated dressings were applied during the test phase. All patients were divided into two groups by the type of dressing applied (standard and CHG-containing dressings).Results:The standard- and CHG-dressing groups contained 68 and 63 patients, respectively. The median durations of catheterization were 13 (8–22) and 14 (2–28) days, respectively (p>0.05). The Catheter-Related Bloodstream Infection (CRBSI) rate was somewhat lower in the CHG-dressing group (20.6 vs. 26.5%), but the difference was not statistically significant (p>0.05). In the CHG-dressing group, CRBSIs caused by Gram-positive microorganisms totaled 0%, but the figure was 8.8% in the control group (p=0.028).Conclusions:CHG dressings reduced CRBSIs caused by Gram-positive microorganisms.

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