2015
The contribution of extended-spectrum &bgr;-lactamases to multidrug-resistant infections in children
Murray TS, Peaper DR. The contribution of extended-spectrum &bgr;-lactamases to multidrug-resistant infections in children. Current Opinion In Pediatrics 2015, 27: 124-131. PMID: 25565574, DOI: 10.1097/mop.0000000000000182.Peer-Reviewed Original ResearchMeSH KeywordsAnti-Bacterial AgentsBeta-Lactam ResistanceBeta-LactamasesChildChild, PreschoolCommunity-Acquired InfectionsCross InfectionDrug Resistance, MultipleEscherichia coliEscherichia coli InfectionsGram-Negative Bacterial InfectionsHumansInfantKlebsiella InfectionsKlebsiella pneumoniaeMicrobial Sensitivity TestsPrevalenceConceptsMultidrug-resistant infectionsGram-negative rodsProlonged fecal carriageAntibiotic prescribing practicesPrevious antibiotic useExtended-spectrum β-lactamasesCommon risk factorsThird-generation cephalosporinsDiagnostic toolAppropriate therapyChallenging infectionsPrescribing practicesNeonatal ICULaboratory criteriaNew diagnostic toolsRisk factorsAntibiotic useFecal carriageCommunity transmissionClinical implicationsInfectionCephalosporin resistanceKlebsiella pneumoniaeReporting criteriaΒ-lactamases
2014
ESBL-producing Escherichia coli and Klebsiella pneumoniae at a tertiary care hospital in Saudi Arabia.
Somily AM, Habib HA, Absar MM, Arshad MZ, Manneh K, Al Subaie SS, Al Hedaithy MA, Sayyed SB, Shakoor Z, Murray TS. ESBL-producing Escherichia coli and Klebsiella pneumoniae at a tertiary care hospital in Saudi Arabia. The Journal Of Infection In Developing Countries 2014, 8: 1129-36. PMID: 25212077, DOI: 10.3855/jidc.4292.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overAnti-Bacterial AgentsBeta-LactamasesBeta-LactamsChildChild, PreschoolEscherichia coliEscherichia coli InfectionsFemaleHumansInfantKlebsiella InfectionsKlebsiella pneumoniaeMaleMicrobial Sensitivity TestsMiddle AgedProspective StudiesSaudi ArabiaTertiary Care CentersYoung AdultConceptsTertiary care hospitalK. pneumoniaeCare hospitalStudy periodClavulanic acidKing Khalid University HospitalDeep wound swabsFrequency of ESBLK. pneumoniae isolatesESBL-producing E. coliExtended-spectrum β-lactamasesSterile body fluidsAnti-microbial susceptibilityESBL-producing isolatesOverall frequency rateE. coli resistanceESBL E. coliWound swabsUniversity HospitalEtest stripsPneumoniae isolatesBlood samplesSuperficial swabsAntibiotic susceptibilityFrequency rateUse of Imipenem To Detect KPC, NDM, OXA, IMP, and VIM Carbapenemase Activity from Gram-Negative Rods in 75 Minutes Using Liquid Chromatography-Tandem Mass Spectrometry
Kulkarni MV, Zurita AN, Pyka JS, Murray TS, Hodsdon ME, Peaper DR. Use of Imipenem To Detect KPC, NDM, OXA, IMP, and VIM Carbapenemase Activity from Gram-Negative Rods in 75 Minutes Using Liquid Chromatography-Tandem Mass Spectrometry. Journal Of Clinical Microbiology 2014, 52: 2500-2505. PMID: 24789180, PMCID: PMC4097713, DOI: 10.1128/jcm.00547-14.Peer-Reviewed Original ResearchExtended-spectrum β-lactamase-producing Klebsiella pneumoniae in the neonatal intensive care unit: Does vancomycin play a role?
Somily AM, Alsubaie SS, BinSaeed AA, Torchyan AA, Alzamil FA, Al-Aska AI, Al-Khattaf FS, Khalifa LA, Al-Thawadi SI, Alaidan AA, Al-Ahdal MN, Al-Qahtani AA, Murray TS. Extended-spectrum β-lactamase-producing Klebsiella pneumoniae in the neonatal intensive care unit: Does vancomycin play a role? American Journal Of Infection Control 2014, 42: 277-282. PMID: 24581016, DOI: 10.1016/j.ajic.2013.09.028.Peer-Reviewed Original ResearchConceptsNeonatal intensive care unitESBL-producing Klebsiella pneumoniaeIntensive care unitIncidence density ratioRisk factorsCare unitΒ-lactamase-producing Klebsiella pneumoniaeExtended-spectrum β-lactamase-producing Klebsiella pneumoniaeKlebsiella pneumoniaeRetrospective cohort studySignificant risk factorsPossible risk factorsExtended-spectrum β-lactamaseCohort studyParenteral feedingMechanical ventilationTeaching hospitalNeonatesKlebsiella speciesUnivariate analyzesPossible predictorsInfectionVancomycinΒ-lactamasePneumoniae
2013
Rapid detection of carbapenemase activity through monitoring ertapenem hydrolysis in Enterobacteriaceae with LCMS/MS
Peaper DR, Kulkarni MV, Tichy AN, Jarvis M, Murray TS, Hodsdon ME. Rapid detection of carbapenemase activity through monitoring ertapenem hydrolysis in Enterobacteriaceae with LCMS/MS. Bioanalysis 2013, 5: 147-157. PMID: 23330558, PMCID: PMC5753620, DOI: 10.4155/bio.12.310.Peer-Reviewed Original ResearchConceptsLife-threatening infectionsIll patientsGram-negative rodsDiagnostic testsExpression of carbapenemasesAvailable diagnostic testsRapid diagnostic testsRatios of metabolitesLC-MS/MSCarbapenemase activityHodge testCarbapenem resistanceCarbapenemase productionCarbapenem antibioticsΒ-lactam antibioticsThreshold cutoffDA increaseErtapenem hydrolysisLC-MS/MS methodPatientsClinical laboratoriesAntibioticsLCMS/MSInfectionPhysiological levels