Dittrich J, Mösseler U, Gärtner U
MMW Munch Med Wochenschr. 1975 Jul 11;117(28):1191-8.
Modern longterm electrocardiography (telemetry, tape recorder) permits the simultaneous recording of heart rate and arrhythmias and analysis of the QRS complex and ST-T sections. "Paroxysmal tachycardia" in different stress situations and the telemetric electrocardiograph tracing must be interpreted taking into consideration additional findings of clinical cardiological examinations. Of 82 subjects, 30 with the symptom "tachycardia" with familial and/or occupational stress could be subdivided into three disease groups: Group A: autonomic lability of healthy hearts; Group B: patients with pre-excitation syndrome; Group C: organic heart disease patients.