[Intraesophageal electrocardiography: an old technic under a new concept].
Transesophageal recording of heart potentials is a fully accepted procedure for the electrical study of the heart. However, the intraesophageal ECG could be explored even better by using multipolar catheter electrodes and by considering various characteristics of the tracing such as amplitude, frequency and velocity. The authors describe their experience with the use of these electrodes and recording characteristics applied to the field of investigation and diagnosis of the electrical activity of supraventricular region. This objective can also by achieved by constructing esophagus-thoracic wall bipolar derivations.
Seminario Origgi
M A
MA
Departamento de Clínica Médica, Facultad de Medicina de Ribeirão Preto, Universidad de São Paulo, Brasil.
Godoy
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RA
D004562:Electrocardiography / Q000295:instrumentation / Q000379:methods*; D004566:Electrodes; D004594:Electrophysiology; D004947:Esophagus; D006331:Heart Diseases / Q000175:diagnosis; D006801:Humans; D012849:Sinoatrial Node / Q000502:physiology; D013909:Thorax
Electrocardiografía intraesofágica: una técnica antigua bajo una nueva concepción.