[Serious side effects of fluoroquinolones: low risk of connective tissue-related disorders such as aneurysms].

Fluoroquinolones are frequently prescribed antibiotics. Recently, the Dutch medicines evaluation board CBG warned about the risk of aortic aneurysms and dissections with the use of fluoroquinolones. We reviewed the three articles used in this warning. We consider that the evidence for a causal relationship is limited. The hazard ratio for the association with fluoroquinolones and aortic aneurysms was around 2. The absolute risk is low given the low prevalence in the general population. However, aortic aneurysms and dissections are life-threatening conditions and must be taken serious. We advise what to do in case of known aortic aneurysms or the presence of multiple risk factors.