PMID- 26745619 OWN - NLM STAT- MEDLINE DCOM- 20181025 LR - 20181025 IS - 1827-1596 (Electronic) IS - 0375-9393 (Linking) VI - 82 IP - 6 DP - 2016 Jun TI - Risk factors for ventilator associated pneumonia due to carbapenemase-producing Klebsiella pneumoniae in mechanically ventilated patients with tracheal and rectal colonization. PG - 635-40 AB - BACKGROUND: The aim of this study was to identify the risk factors for ventilator associated pneumonia (VAP) due to Klebsiella pneumoniae carbapenemase-producing K (KPC-Kp) development in ICU patients with documented rectal and tracheal colonization. METHODS: We performed a retrospective, matched case-control study in a medical-surgical ICU (January 2011-December 2013) comparing 30 patients who developed KPC-Kp VAP during the ICU stay to 60 colonized patients not developing KPC-Kp VAP. Analysed risk factors included: age, sex, SAPS II and SOFA scores, comorbidities, type and length of antibiotic therapy, previous non KPC-Kp infections, time between admission to rectal and tracheal colonization. RESULTS: Several risk factors were more frequent among patients who developed KPC-Kp pneumonia versus matched colonized controls: previous infection not related to KPC-Kp (P<0.001), duration of previous antibiotic therapy before (P<0.001) and after (P=0.002) KPC-Kp colonization. Amoxicillin/clavulanic acid prophylaxis was administered in 17% of VAP patients versus 73% of patients not developing VAP (P<0.001). Multivariate conditional logistic regression analysis identified several significant independent risk factors favoring KPC-Kp VAP in patients colonized at multiple sites: previous non KPC-Kp infections (OR: 2.046), duration of previous antibiotic therapy before (OR: 1.309) and after (OR: 1.122) KPC-Kp colonization; antibiotic therapy with amoxicillin/clavulanic acid prophylaxis (<48 hours) was associated with reduced risk of KPC-Kp VAP (OR: 0.987). CONCLUSIONS: In rectal and tracheal KPC-Kp colonized patients, prolonged antibiotic therapy administered for non KPC-Kp infection predisposes patients to subsequent KPC-Kp VAP. Short prophylaxis of early pneumonia with amoxicillin/clavulanic acid, reducing the need for subsequent antibiotic use, may be associated with reduced risk for KPC-Kp VAP. FAU - Sbrana, Francesco AU - Sbrana F AD - U.O. Lipidoaferesi, Fondazione Toscana Gabriele Monasterio, Pisa, Italy - francesco.sbrana@ftgm.it. FAU - Malacarne, Paolo AU - Malacarne P FAU - Bassetti, Matteo AU - Bassetti M FAU - Tascini, Carlo AU - Tascini C FAU - Vegnuti, Lara AU - Vegnuti L FAU - Della Siega, Paola AU - Della Siega P FAU - Ripoli, Andrea AU - Ripoli A FAU - Ansaldi, Filippo AU - Ansaldi F FAU - Menichetti, Francesco AU - Menichetti F LA - eng PT - Journal Article DEP - 20160108 PL - Italy TA - Minerva Anestesiol JT - Minerva anestesiologica JID - 0375272 RN - 0 (Anti-Bacterial Agents) RN - 0 (Bacterial Proteins) RN - EC 3.5.2.6 (beta-Lactamases) RN - EC 3.5.2.6 (carbapenemase) SB - IM CIN - Minerva Anestesiol. 2016 Jun;82(6):616-8. PMID: 27029825 MH - Anti-Bacterial Agents/therapeutic use MH - Bacterial Proteins/*biosynthesis MH - Carrier State/microbiology MH - Case-Control Studies MH - Female MH - Humans MH - Klebsiella Infections/*microbiology/prevention & control MH - Klebsiella pneumoniae/*enzymology MH - Male MH - Middle Aged MH - Pneumonia, Ventilator-Associated/*microbiology/prevention & control MH - Rectum/*microbiology MH - Retrospective Studies MH - Risk Factors MH - Trachea/*microbiology MH - beta-Lactamases/*biosynthesis EDAT- 2016/01/09 06:00 MHDA- 2018/10/26 06:00 CRDT- 2016/01/09 06:00 PHST- 2016/01/09 06:00 [entrez] PHST- 2016/01/09 06:00 [pubmed] PHST- 2018/10/26 06:00 [medline] AID - R02Y9999N00A160005 [pii] PST - ppublish SO - Minerva Anestesiol. 2016 Jun;82(6):635-40. Epub 2016 Jan 8.