Pyelonephritis medical therapy
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Abdurahman Khalil, M.D. [2]
Overview
As practically all cases of pyelonephritis are due to bacterial infections, antibiotics are the mainstay of treatment. Mild cases may be treated with oral therapy, but generally intravenous antibiotics are required for the initial stages of treatment. The type of antibiotic depends on local practice, and may include fluoroquinolones (e.g. ciprofloxacin), beta-lactam antibiotics (e.g. amoxicillin or acephalosporin), trimethoprim (or co-trimoxazole) or nitrofurantoin. Aminoglycosides are avoided due to their toxicity, but may be added for a short duration.[1]
Principles of Therapy for Acute Pyelonephritis
- Before initiating antimicrobial treatment for suspected pyelonephritis, a urine culture and susceptibility test should always be performed to help tailor empiric therapy.
- Optimal management depends on the severity of illness at presentation, local resistance data, and host factors; when local resistance patterns are unknown, an initial intravenous dose of a long-acting, broad-spectrum antimicrobial agent may be considered.
- Oral beta-lactams are generally less effective than trimethoprim-sulfamethoxazole in treating acute pyelonephritis.
- Uncomplicated pyelonephritis due to MRSA is uncommon and there is insufficient evidence to support empiric use of an MRSA-active agent.
- Ampicillin should be limited to treating suspected Enterococcus infection and co-administered with an aminoglycoside.
- Fluoroquinolones and aminoglycosides should be avoided in pregnant patients.
- Pregnant women, patients who failed to respond to oral therapy, and patients with nausea, vomiting, high fever, marked leukocytosis, or dehydration should be hospitalized and managed with parenteral antibiotics.[2]
Empiric Therapy Adapted from Clin Infect Dis. 2011;52(5):e103-20.[1]
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References
- ↑ 1.0 1.1 Gupta, K.; Hooton, TM.; Naber, KG.; Wullt, B.; Colgan, R.; Miller, LG.; Moran, GJ.; Nicolle, LE.; Raz, R. (2011). "International clinical practice guidelines for the treatment of acute uncomplicated cystitis and pyelonephritis in women: A 2010 update by the Infectious Diseases Society of America and the European Society for Microbiology and Infectious Diseases". Clin Infect Dis. 52 (5): e103–20. doi:10.1093/cid/ciq257. PMID 21292654. Unknown parameter
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ignored (help) - ↑ Warren, JW.; Abrutyn, E.; Hebel, JR.; Johnson, JR.; Schaeffer, AJ.; Stamm, WE. (1999). "Guidelines for antimicrobial treatment of uncomplicated acute bacterial cystitis and acute pyelonephritis in women. Infectious Diseases Society of America (IDSA)". Clin Infect Dis. 29 (4): 745–58. doi:10.1086/520427. PMID 10589881. Unknown parameter
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ignored (help)