Azithromycin as a cause of QT-interval prolongation and torsade de pointes in the absence of other known precipitating factors

J Interv Card Electrophysiol. 2007 Apr;18(3):243-6. doi: 10.1007/s10840-007-9124-y. Epub 2007 Jun 2.


During treatment with azithromycin, a 55 year-old woman developed a newly prolonged QT interval and torsade de pointes in the absence of known risk factors. Female gender and acute renal failure may be considerations in patients treated with azithromycin.

Publication types

  • Case Reports

MeSH terms

  • Anti-Bacterial Agents / adverse effects*
  • Azithromycin / adverse effects*
  • Bradycardia / therapy
  • Female
  • Humans
  • Long QT Syndrome / chemically induced*
  • Middle Aged
  • Pacemaker, Artificial
  • Torsades de Pointes / chemically induced*


  • Anti-Bacterial Agents
  • Azithromycin