Air filled, including "air-charged," catheters in urodynamic studies: does the evidence justify their use?

Aims: Air filled catheters (AFCs) have been actively marketed for the past few years and in some geographic areas are widely used. However, as the scientific basis for introduction of this technology for pressure measurement in urodynamics was not clear, a study group examined the evidence.

Methods: A search of the peer reviewed literature was carried out.