His bundle electrocardiography during routine left heart catheterisation.

His bundle electrocardiography during routine left heart catheterisation.

His bundle electrocardiography during bidirectional tachycardia.

His bundle electrocardiography in a patient with a digitalis-induced bidirectional tachycardia revealed absence of His spike preceding earliest onset of ventricular activation during the bidirectional tachycardia. However, His potential preceded ventricular activation of normal complexes at a constant H-V interval of 35 msec. The presence of fusion QRS complexes, capture QRS complexes, the anal...

His Bundle Electrocardiography during Bidirectional Tachycardia By STEPHEN

His bundle electrocardiography in a patient with a digitalis-induced bidirectional tachycardia revealed absence of His spike preceding earliest onset of ventricular activation during the bidirectional tachycardia. However, His potential preceded ventricular activation of normal complexes at a constant H-V interval of 35 msec. The presence of fusion QRS complexes, capture QRS complexes, the anal...

Pseudo A-V block secondary to premature nonpropagated His bundle depolarizations: documentation by His bundle electrocardiography.

Sites of congenital and surgical heart block as defined by His bundle electrocardiography.

Catheter recordings of His bundle electrograms were obtained in seven patients with congenital heart block (CHB) and in two with surgical heart block (SHB). In the latter two patients block occurred following total correction of tetralogy of Fallot. In six patients with CHB block occurred proximal to H. In one CHB patient block occurred in the His bundle with "split" H potentials. Intraventricu...