Keywords
Electrocardiograma
Parámetros normales Newborn
Normal standards
How to Cite
Abstract
In Santander, eight of 1000 children present congenital cardiopaties. A cost-effective tool for cardiac screening is the electrocardiogram. Nevertheless we do not have standards of normality established for Colombian population. Objective: to describe normal values of electrocardiographic waves and segments in a sample of healthy newborns. Methods: this was a longitudinal, prospective cohort study which included all the children born from February to July 2006 in the Hospital Universitario de Santander in Bucaramanga, Colombia. Exclusion criteria: preterm delivery, maternal risk, hard to follow patient, hospitalization of newborn and cardiovascular risk. Three consecutive electrocardiograms were taken, within the first 24 hours, to the week and in the first month. To capture and digitalize signals the BIOPAC MP 35 system was used. Measures were validated by visual verification and with data obtained from a pediatric cardiologist. Statistical analysis was performed with STATA 9.2. Results: in comparison to international standards (Davignon and Rijnbeek), lower values of PR interval, QRS complex and amplitude of S wave were found in VI. Also P wave length and amplitude of Q and R wave were found lower compared to reported standards. In contrast QRS complex length, S wave amplitude in V6 and QTc interval length were found to be higher. Conclusions: in the present study we reported changes compared to international standards published by Davignon and Rijnbeek. These changes are in part due to the use of different parameters in frequence of sampling and bandwidth used for signal registry. Nevertheless it could be showing ethnographic differences, which means that further research is needed on this topic
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