Treatment outcome of ceftriaxone resistant, Escherichia-coli and Klebsiella spp. bacteremia comparing carbapenem and Beta-lactam/ Beta-lactamase inhibiters in a tertiary care Hospital

Authors

  • Beena Rani Sindh Institute of Urology and Transplantation, Karachi Pakistan
  • Sunil Kumar Dodani Sindh Institute of Urology and Transplantation, Karachi Pakistan
  • Zaheer Udin Babar Sindh Institute of Urology and Transplantation, Karachi Pakistan
  • Maryam Mushtaq Sindh Institute of Urology and Transplantation, Karachi Pakistan
  • Sanjay Badlani Sindh Institute of Urology and Transplantation, Karachi Pakistan
  • Mehreen Fatima Sindh Institute of Urology and Transplantation, Karachi Pakistan

DOI:

https://doi.org/10.61529/idjp.v34i2.359

Abstract

Background: Carbapenem are recommended for the treatment of Ceftriaxone (CRO) resistant Enterobacterales, however, there are concerns of cost and resistance. Our aim is to compare the outcome of CRO resistant E-coli and Klebsiella bacteremia between Carbapenem and Beta-lactam/beta-lactamase inhibitors (BL/BLI).

Material and Methods: This was a prospective cohort study conducted at Sindh Institute of Urology and Transplantation (SIUT), Karachi, Pakistan from October 2021 to June 2022. All adult patients with E coli or Klebsiella spp. bacteremia, CRO resistant and sensitive to both BL/BLI and Carbapenem were included. The patients were divided into BL/BLI and Carbapenem groups. Demographics, clinical features, comorbidities, laboratory parameters and intensive care unit stay were compared. Outcomes were bacteriological clearance, clinical success and all-cause mortality at day 14 of bacteremia.

Results: A total of 156 patients, 93(59.6%) in BL/BLI and 63(40.0%) in Carbapenem group were included. There was no difference in co-morbidities, risk factors and severity of disease. The 14-day all-cause mortality was 14.1%. No statistically significant difference was found between BL/BLI and Carbapenem group regarding bacteriological clearance (p=0.27) and mortality (p=0.95). The Carbapenem group had less clinical success rate (69.8% vs 82.8%, p=0.057), however not statistically significant.

Conclusion: BL/BLIs were as effective as Carbapenem in microbiological clearance, clinical success and mortality in CRO resistant E-coli and Klebsiella bacteremia.

Keywords: Bacteremia, Ceftriaxone, Carbapenem, Mortality

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Published

30-06-2025

How to Cite

Rani, B., Dodani, S. K., Babar, Z. U., Mushtaq, M., Badlani, S., & Fatima, M. (2025). Treatment outcome of ceftriaxone resistant, Escherichia-coli and Klebsiella spp. bacteremia comparing carbapenem and Beta-lactam/ Beta-lactamase inhibiters in a tertiary care Hospital. Infectious Diseases Journal of Pakistan, 34(2), 136–141. https://doi.org/10.61529/idjp.v34i2.359