title: Amikacin-induced type 5 Bartter-like syndrome with severe hypocalcemia.
abstract: Aminoglycoside-induced renal toxicity is well known and may manifest with nonoliguric renal failure or renal tubular dysfunction. Aminoglycoside-induced renal tubular dysfunction could result in diffuse damage or manifest as a Fanconi-like syndrome, Bartter-like syndrome, or distal renal tubular acidosis. We discuss a patient who developed severe renal tubular dysfunction secondary to short-term therapy with Amikacin, resulting in refractory hypokalemia, hypocalcemia, hypomagnesemia, metabolic alkalosis, and polyuria. This constellation of biochemical abnormalities mimic Type 5 Bartter's syndrome, where there is activating mutation of the calcium sensing receptor in the thick ascending loop of Henle and the distal tubule. In this case this activation of the calcium sensing receptor was triggered by amikacin. This phenomenon has been described with gentamicin though never with amikacin. Recovery of the tubular dysfunction took 15 days following cessation of the offending drug, Amikacin.
authors.affiliation: Department of Medicine II, Christian Medical College, Vellore, India. anugrahchrispal@gmail.com
authors.forename: A
authors.initials: A
authors.lastname: Chrispal
authors.forename: H
authors.initials: H
authors.lastname: Boorugu
authors.forename: A T
authors.initials: AT
authors.lastname: Prabhakar
authors.forename: V
authors.initials: V
authors.lastname: Moses
mesh_terms: D000328:Adult; D000583:Amikacin / Q000008:administration & dosage / Q000009:adverse effects*; D000900:Anti-Bacterial Agents / Q000008:administration & dosage / Q000009:adverse effects*; D001477:Bartter Syndrome / Q000139:chemically induced* / Q000175:diagnosis; D002118:Calcium / Q000097:blood; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D006801:Humans; D006996:Hypocalcemia / Q000097:blood / Q000209:etiology*; D007275:Injections, Intravenous; D008297:Male; D012720:Severity of Illness Index; D014552:Urinary Tract Infections / Q000188:drug therapy
chemical_list: D000900:Anti-Bacterial Agents; D000583:Amikacin; D002118:Calcium