In regard to the electrocardiographic analysis, before the procedure
61.8% of the patients were in sinusal rate. Of the cardiac
arrhythmias detected, auricular fibrillation is notable as being
present in 17.6% of the patients. The cardiac frequency average
was 78.38 beats/minute. In 55.9% cases there were no P wave
alterations, whereas in more than 17%, a decrease in the voltage
was observed. Referring to the QRS complex, the majority
did not have any alteration (58.8%). 44.1% presented some
type of intra-ventricular branch block and no patient presented