title: [Diagnostic value of the continuous electrocardiographic monitoring (Holter) and of the electrophysiologic testings in patients with sino-atrial node dysfunction (author's transl)].
abstract: A twenty-four hours electrocardiographic recording and an electrophysiological study were performed in 48 patients with sinus bradycardia, 21 of them with symptoms suggesting a sino-atrial dysfunction. Both methods, and independently one each other, were not diagnostic in all symptomatic patients; on the contrary, they showed sinus dysfunction in patients without symptoms related to sino-atrial node dysfunction. These results induce to conclude that the two methods are complementary and that their results must be ever critically accepted, especially when a permanent cardiac pacing is indicated. Because of their not high sensitivity, some patients with sinus dysfunction are not recognised; there-after, the diagnosis is only possible, in these cases, on the base of clinical-signs.
mesh_terms: D000328:Adult; D000368:Aged; D001146:Arrhythmia, Sinus / Q000175:diagnosis*; D001919:Bradycardia / Q000175:diagnosis*; D004562:Electrocardiography / Q000295:instrumentation*; D006801:Humans; D008875:Middle Aged; D008991:Monitoring, Physiologic; D012804:Sick Sinus Syndrome / Q000175:diagnosis*; D013686:Telemetry
vernacular_title: Valore diagnostico dell'elettrocardiografia dinamica e delle indagini elettrofisiologiche nelle disfunzioni del nodo seno-atriale.