Meropenem-Vaborbactam as Salvage Therapy for Ceftazidime-Avibactam-, Cefiderocol-Resistant ST-512 <i>Klebsiella pneumoniae</i>–Producing KPC-31, a D179Y Variant of KPC-3
Giusy Tiseo, Marco Falcone, Alessandro Leonildi, Cesira Giordano, Simona Barnini, Gabriele Arcari, Alessandra Carattoli, Francesco Menichetti
Abstract
Abstract A 68-year-old man had recurrent bacteremia by Klebsiella pneumoniae carbapenemase (KPC)–producing K. pneumoniae resistant to ceftazidime-avibactam and cefiderocol. The sequencing of a target region showed that it harbored a KPC-3 variant enzyme (D179Y; KPC-31), which confers resistance to ceftazidime-avibactam and restores meropenem susceptibility. The patient was successfully treated with meropenem-vaborbactam.
Topics & Concepts
Ceftazidime/avibactamKlebsiella pneumoniaeMeropenemMedicineAvibactamCeftazidimeMicrobiologyBacteremiaSalvage therapyPseudomonas aeruginosaInternal medicineAntibioticsAntibiotic resistanceBiologyChemotherapyEscherichia coliBacteriaGeneGeneticsAntibiotic Resistance in BacteriaAntibiotics Pharmacokinetics and EfficacyPneumonia and Respiratory Infections