6533b85efe1ef96bd12bf31b

RESEARCH PRODUCT

Combination of aztreonam, ceftazidime–avibactam and amikacin in the treatment of VIM-1 Pseudomonas aeruginosa ST235 osteomyelitis

Stefania StefaniAlessandra MularoniDafne BongiornoGrossi PaoloAdriana CervoMaria Lina MezzatestaAlice Annalisa MedagliaAngelo LucaMichele PilatoAusilia Aprile

subject

Microbiology (medical)AvibactamDrug ResistanceCeftazidimeInfectious and parasitic diseasesRC109-216Aztreonammedicine.disease_causeST235CeftazidimeMicrobiologyCeftazidime–avibactamchemistry.chemical_compoundAztreonamAortic valve replacementDrug TherapyDrug Resistance Multiple BacterialmedicineHumansPseudomonas InfectionsPseudomonas aeruginosa; ST235; VIM-1; aztreonam; ceftazidime-avibactam; osteomyelitisAmikacinAgedPseudomonas aeruginosabusiness.industryceftazidime-avibactamOsteomyelitisBacterialOsteomyelitisGeneral MedicineCeftazidime/avibactammedicine.diseaseAnti-Bacterial AgentsDrug CombinationsInfectious DiseaseschemistryDebridementAmikacinPseudomonas aeruginosaCombinationVIM-1Drug Therapy CombinationFemalebusinessAzabicyclo CompoundsMultiplemedicine.drug

description

Abstract We describe a challenging case of patient with metallo-beta-lactamase-producing Pseudomonas aeruginosa sternal osteomyelitis following aortic valve replacement with biological prosthesis. The strain exhibited a multidrug-resistance phenotype carrying the blaVIM-1 gene and belonged to the high-risk clone sequence type ST235. The patient was successfully treated with surgical debridement plus antibiotic therapy with ceftazidime/avibactam, aztreonam, and amikacin. Time-kill curves showed that this triple antibiotic combination at 1 × MIC was strongly synergic after 8 h, achieving 99.9% killing and maintaining this until 48 h.

yearjournalcountryeditionlanguage
2021-07-01
10.1016/j.ijid.2021.05.085http://hdl.handle.net/20.500.11769/524338