[Quality assurance in cardiology: ergometry/long-term ECG].

Besides routine Ecg, exercise testing and Holter monitoring represent the most frequently applied non invasive cardiological examinations, performed not only within the hospital and by practising cardiologists, but most frequently by general practitioners as well as internists. Recommendations for standards of these methods have been published by Working Groups of the European Society of Cardiology as well as the American College of Cardiology and the American Heart Association. Based on these recommendations, this manuscript gives a survey about the prerequisites (equipment, staff), indications, "lege artis"-procedure, as well as interpretation of the results of both techniques. These recommendations can be used to set certain standards; furthermore, possibilities for the control of these quality standards are outlined.