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A method is presented for the non-invasive recording of His bundle electrical activity from the body surface in man. Several bipolar ECG leads were employed: precordial, Frank "x" and Frank "z". Signals were filtered (30-300 Hz), highly amplified (5 x 104) and averaged. Digital averaging was performed on line by a microcomputer (OTE Biomedica Neuroaverager mod. 1172). Surface investigation was performed in 10 patients affected by different conduction pathology simultaneously with HBE recordings for diagnostic purpose and in 5 normal volunteers only incruently. Highly repeatable electrical deflections (B waves) were recorded in the PR segment. In all patients a good correspondence between surface (B wave) and intracardiac (H wave) was found. Atrial pacing and pharmacological test were used in order to ascertain the real source of B wave.
R Fenici, and
F Bellocci, and
M Marchei, and
L Gabrielli, and
P Zecchi, and
P Zeppilli
June 1976,
Fukuoka igaku zasshi = Hukuoka acta medica,
R Fenici, and
F Bellocci, and
M Marchei, and
L Gabrielli, and
P Zecchi, and
P Zeppilli
January 1969,
Circulation,
R Fenici, and
F Bellocci, and
M Marchei, and
L Gabrielli, and
P Zecchi, and
P Zeppilli
October 1983,
Journal of electrocardiology,
R Fenici, and
F Bellocci, and
M Marchei, and
L Gabrielli, and
P Zecchi, and
P Zeppilli
June 1975,
Chest,
R Fenici, and
F Bellocci, and
M Marchei, and
L Gabrielli, and
P Zecchi, and
P Zeppilli
June 1975,
British heart journal,
R Fenici, and
F Bellocci, and
M Marchei, and
L Gabrielli, and
P Zecchi, and
P Zeppilli
July 1979,
Kardiologiia,
R Fenici, and
F Bellocci, and
M Marchei, and
L Gabrielli, and
P Zecchi, and
P Zeppilli
June 1975,
The American journal of cardiology,
R Fenici, and
F Bellocci, and
M Marchei, and
L Gabrielli, and
P Zecchi, and
P Zeppilli
March 1979,
Pacing and clinical electrophysiology : PACE,
R Fenici, and
F Bellocci, and
M Marchei, and
L Gabrielli, and
P Zecchi, and
P Zeppilli
November 1972,
British heart journal,
R Fenici, and
F Bellocci, and
M Marchei, and
L Gabrielli, and
P Zecchi, and
P Zeppilli
February 1982,
Kokyu to junkan. Respiration & circulation,
