Within less than a half-century, after the early rising of cardiac pacing, we witness a dramatical in crease of its indications. After the initial aim, which was to prevent transient ischaemic events, and sudden death due to bradycardia, some more physiological objectives have--progressively appeared, such as improvement of patient's quality of life, and optimization of the cardiac performance to fulfill the metabolic needs. The indications of cardiac pacing are nowadays extended to the fields of haemodynamics and rythmology. Numerous studies are advocating the interest of the cardiac pacing in pathologies such as obstructive and dilated cardiomyopathies specially for the improvement of the NYHA functional status, life comfort and effort sustain. On another hand, newly discovered antiarrhythmic virtues of atrial pacing are of a great interest for a certain type of atrial fibrillations such as vagal induced fibrillations, atrial diseases and atypical flutters. For conclusion: after becoming mandatory for bradycardias, cardiac pacing is conquering new indications on the fields of arrhythmias and cardiomyopathies. Within a close future, scientific evidences could definitely validate çardiac pacing using on these new fields.