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B Perrot

Publications and source records attributed to B Perrot.

49 records · Page 3Linked to original sources
PubMed1979

[The incidence of concealed accessory atrioventricular pathways in paroxysmal junctional tachycardias].

Forty patients with normal resting ECGs and a history of paroxysmal junctional tachycardia underwent endocavitory electrocardiography. Accessory atrioventricular pathways were demonstrated in 34 patients (82.5%), 14 of whom (35%) had Kent bundles. The ventriculo-atrial conduction time during ventricular stimulation was constantin 85% of the 40 patients but increased after injection of striadyne (ATP). This may suggest a reentry circuit partially bypassing the atrioventricular node.

Adenosine Triphosphate↗
PubMedDate not supplied

[Physiopathology and methods of clinical evaluation of ventricular extrasystoles].

The severity of ventricular asystole depends on many parameters involving above all the physiopathological mechanism behind the extrasystole; re-entry; normal, exaggerated or abnormal cardiac automatism, and thus the possible presence of underlying cardiopathy. In addition, the morphology, number and characteristic features of the arrhythmia are directly related to prognosis. Different further investigations: 24-hour Holter monitoring, exercise testing and electrophysiological investigation are often required to assess prognosis.

Cardiac Complexes, Premature↗
PubMedDate not supplied

[Vectorcardiography in infarction of the right ventricle].

A vectorcardiogram (VCG) was recorded in 22 patients in the acute phase of a right ventricular infarct in order to investigate any characteristic signs of this diagnosis. The RV infarct had been proven by at least two investigations: 2D echo, isotopes and right ventricular catheterisation. 17 patients had ST depression in V4R. The QRS complex presented two features: there was a reduced refractory period in every case, associated with septal extension in 3 cases and true posterior infarction in 11 cases, and, in the frontal plane, the QRS which was in clockwise rotation had showed an abnormal left axial lead in 18 cases with a maximal vectorial axis of between - 10 degrees and - 60 degrees. These modifications are similar to those seen in experimental infarcts of the RV. In conclusion, repeated VCGs in the acute phase of inferior infarction should suggest the diagnosis of right ventricular extension if it shows the appearance of more marked left axis deviation than that seen with isolated inferior infarcts. However, this sign is no constant and is not specific.

Adult↗