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Case Report


Nonsurgical resolution of renal cortical abscesses in a dog with multidrug-resistant Klebsiella-induced urosepsis

Diego Ribeiro, Reiner Silveira De Moraes, Josiane Aparecida Martiniano De Pádua, Luiz Guilherme Dercore Benevenuto, Alda Esteves Junqueira Bernardes, Laura Soares Magalhães, Maria Luiza Maciel De Mendonça, Júlio César Nascimento De Cerqueira Júnior, Teresa Alessandra De Lima Núñez, Maira Souza Oliveira Barreto, Rodrigo Bernardes Nogueira, Priscylla Tatiana Chalfun Guimarães Okamoto.


Abstract
Background:
Urinary tract infections caused by Klebsiella can significantly affect the renal parenchyma, with urosepsis being a potential outcome. Renal abscesses may also occur, and surgical interventions may be often required. This article reports a case of urosepsis and renal abscess caused by multidrug-resistant Klebsiella, describing a successful outcome of renal abscess resolution using antimicrobial therapy alone.

Case Description:
A 3-year-old female Shih-Tzu was referred to the intensive care unit of a teaching hospital in Brazil. The patient exhibited anorexia, vomiting, pale mucous membranes, jaundice, halitosis, hyperthermia, hypoglycemia, and hypotension. Stabilization included the administration of fluid resuscitation, vasopressor, antipyretic, and glucose. Laboratory findings included anemia, neutrophilic leukocytosis, thrombocytopenia, hyperfibrinogenemia, and elevated serum concentrations of creatinine, urea, phosphorus, alanine aminotransferase, alkaline phosphatase, and total and fractionated bilirubin. Abdominal ultrasonography revealed images compatible with CKD and renal abscesses. Empirical antibiotic therapy was initiated with enrofloxacin (5 mg/kg IV q 24 h) and ceftriaxone (30 mg/kg IV q 12 h), followed by a switch to meropenem (8.5 mg/kg SC q 12 h for 10 days) based on positive urine culture results for Klebsiella spp. and susceptibility testing indicating sensitivity exclusively to carbapenems. The patient underwent peritoneal dialysis as renal replacement therapy. The treatment successfully resolved the uremic crisis, induced renal abscess regression, and reversed urosepsis.

Conclusion:
Conservative clinical management with antibiotic therapy proved effective in resolving urosepsis and abscesses located in the renal cortex, measuring approximately 4–5 cm, without the need for percutaneous drainage or surgical intervention. This finding highlights the need for further research into the efficacy of different therapeutic strategies based on the anatomical location of renal abscesses.

Key words: Meropenem; Multidrug-resistant bacteria; Renal abscess; Sepsis; Urinary tract infection.


 
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How to Cite this Article
Pubmed Style

Ribeiro D, Moraes RSD, Pádua JAMD, Benevenuto LGD, Bernardes AEJ, Magalhães LS, Mendonca MLMD, , Núñez TADL, Barreto MSO, Nogueira RB, Okamoto PTCG. Nonsurgical resolution of renal cortical abscesses in a dog with multidrug-resistant Klebsiella-induced urosepsis. Open Vet. J.. 2025; 15(10): 5391-5399. doi:10.5455/OVJ.2025.v15.i10.57

Web Style

Ribeiro D, Moraes RSD, Pádua JAMD, Benevenuto LGD, Bernardes AEJ, Magalhães LS, Mendonca MLMD, , Núñez TADL, Barreto MSO, Nogueira RB, Okamoto PTCG. Nonsurgical resolution of renal cortical abscesses in a dog with multidrug-resistant Klebsiella-induced urosepsis. https://www.openveterinaryjournal.com/?mno=264513 [Access: June 26, 2026]. doi:10.5455/OVJ.2025.v15.i10.57

AMA (American Medical Association) Style

Ribeiro D, Moraes RSD, Pádua JAMD, Benevenuto LGD, Bernardes AEJ, Magalhães LS, Mendonca MLMD, , Núñez TADL, Barreto MSO, Nogueira RB, Okamoto PTCG. Nonsurgical resolution of renal cortical abscesses in a dog with multidrug-resistant Klebsiella-induced urosepsis. Open Vet. J.. 2025; 15(10): 5391-5399. doi:10.5455/OVJ.2025.v15.i10.57


Vancouver/ICMJE Style

Ribeiro D, Moraes RSD, Pádua JAMD, Benevenuto LGD, Bernardes AEJ, Magalhães LS, Mendonca MLMD, , Núñez TADL, Barreto MSO, Nogueira RB, Okamoto PTCG. Nonsurgical resolution of renal cortical abscesses in a dog with multidrug-resistant Klebsiella-induced urosepsis. Open Vet. J.. (2025), [cited June 26, 2026]; 15(10): 5391-5399. doi:10.5455/OVJ.2025.v15.i10.57


Harvard Style

Ribeiro, D., Moraes, . R. S. D., Pádua, . J. A. M. D., Benevenuto, . L. G. D., Bernardes, . A. E. J., Magalhães, . L. S., Mendonca, . M. L. M. D., , Núñez, . T. A. D. L., Barreto, . M. S. O., Nogueira, . R. B. & Okamoto, . P. T. C. G. (2025) Nonsurgical resolution of renal cortical abscesses in a dog with multidrug-resistant Klebsiella-induced urosepsis. Open Vet. J., 15 (10), 5391-5399. doi:10.5455/OVJ.2025.v15.i10.57


Turabian Style

Ribeiro, Diego, Reiner Silveira De Moraes, Josiane Aparecida Martiniano De Pádua, Luiz Guilherme Dercore Benevenuto, Alda Esteves Junqueira Bernardes, Laura Soares Magalhães, Maria Luiza Maciel De Mendonca, Júlio César Nascimento De Cerqueira Júnior, Teresa Alessandra De Lima Núñez, Maira Souza Oliveira Barreto, Rodrigo Bernardes Nogueira, and Priscylla Tatiana Chalfun Guimarães Okamoto. 2025. Nonsurgical resolution of renal cortical abscesses in a dog with multidrug-resistant Klebsiella-induced urosepsis. Open Veterinary Journal, 15 (10), 5391-5399. doi:10.5455/OVJ.2025.v15.i10.57


Chicago Style

Ribeiro, Diego, Reiner Silveira De Moraes, Josiane Aparecida Martiniano De Pádua, Luiz Guilherme Dercore Benevenuto, Alda Esteves Junqueira Bernardes, Laura Soares Magalhães, Maria Luiza Maciel De Mendonca, Júlio César Nascimento De Cerqueira Júnior, Teresa Alessandra De Lima Núñez, Maira Souza Oliveira Barreto, Rodrigo Bernardes Nogueira, and Priscylla Tatiana Chalfun Guimarães Okamoto. "Nonsurgical resolution of renal cortical abscesses in a dog with multidrug-resistant Klebsiella-induced urosepsis." Open Veterinary Journal 15 (2025), 5391-5399. doi:10.5455/OVJ.2025.v15.i10.57


MLA (The Modern Language Association) Style

Ribeiro, Diego, Reiner Silveira De Moraes, Josiane Aparecida Martiniano De Pádua, Luiz Guilherme Dercore Benevenuto, Alda Esteves Junqueira Bernardes, Laura Soares Magalhães, Maria Luiza Maciel De Mendonca, Júlio César Nascimento De Cerqueira Júnior, Teresa Alessandra De Lima Núñez, Maira Souza Oliveira Barreto, Rodrigo Bernardes Nogueira, and Priscylla Tatiana Chalfun Guimarães Okamoto. "Nonsurgical resolution of renal cortical abscesses in a dog with multidrug-resistant Klebsiella-induced urosepsis." Open Veterinary Journal 15.10 (2025), 5391-5399. Print. doi:10.5455/OVJ.2025.v15.i10.57


APA (American Psychological Association) Style

Ribeiro, D., Moraes, . R. S. D., Pádua, . J. A. M. D., Benevenuto, . L. G. D., Bernardes, . A. E. J., Magalhães, . L. S., Mendonca, . M. L. M. D., , Núñez, . T. A. D. L., Barreto, . M. S. O., Nogueira, . R. B. & Okamoto, . P. T. C. G. (2025) Nonsurgical resolution of renal cortical abscesses in a dog with multidrug-resistant Klebsiella-induced urosepsis. Open Veterinary Journal, 15 (10), 5391-5399. doi:10.5455/OVJ.2025.v15.i10.57


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