[Quality assurance in cardiology: invasive electrophysiologic studies].

Quality assurance in invasive cardiac electrophysiology is of growing interest, also for cost-benefit-analysis. It can be achieved by following guidelines first published by the German Cardiac Society in 1985, which will soon be presented in revised form. Of major importance is proper education of the cardiologist who will be responsible for the indication, the enforcement, and the interpretation of the results. Furthermore, clear documentation is required in order to allow supervision, e.g., via spot checks by external experts.