CHARACTERIZATION PRE AND POSTDUCTAL SATURATION AS AN INDIRECT MEASURE IN PHYSIOTHERAPY FOR NEONATAL CARDIOPATHY

Hernandez Alvarez ED1, Hoyos Parra OM1, Buitrago Turriago D1, Quijano Cuellar M1,2
1Universidad Nacional de Colombia, Bogotá D. C., Bogotá D.C, Colombia, 2Hospital Universitario de la Samaritana, Bogotá D. C., Bogotá D.C., Colombia

Background: Worldwide and in Colombia, it has been recommended, endorse and standardize the pre and postductal use of oxygen saturation measure in newborns with the goal of detecting a exactly diagnostic of congenital cardiac alterations. This method has demonstrated a high sensibility (76,3%, IC of 95%: 69,5 to 82,0), conscientiousness (99,9%, IC of 95%: 99,7 to 99,9), an a low rate of false positives (0,14%, IC of 95%: 0,07 to 0,22), becoming in the most simple, secure, economic and not invasive.

Purpose: Characterizes the values of pre and postductal oxygen saturation and its difference to identify any suspected congenital heart disease in newborns of Samaritana University Hospital in Bogota.

Methods: cross-sectional observational and descriptive study, pre and postductal oxygen saturation measure was taking 24 hours of life in 95 newborns with portable pulse oximeter and the specific values of difference in pre and postductal oxygen saturation in the population, relating sociodemographic variables with the probability of presenting a heart disease through univariate descriptive analysis, Clusters and a logistic regression model was used.

Results: 95 newborns were included in the period of February to April of 2018, a difference of pre and postductal oxygen saturation within 24 hours of live ≥ 2% was identify as positive for heart disease in a 80% of the marked as suspicious; furthermore, the maternal antecedents and socio economic status variables of heart disease were found associated with that change in favor with probability of presenting a heart disease with a significant value on 10%.

Conclusion(s): The difference of pre and postductal of oxygen saturation demonstrated to be a satisfactory method indirect in the detection of a heart disease in an 80% of the marked cases as suspicious, with a difference of ≥ 2% in this measurement; with a significant of 10%, low socio economic status and maternal antecedent of heart disease its related with a high probability of it. Although the variables of size, weight, gestational age, type of delivery and paternal antecedents of heart disease do not present a significant for a change in the probability of being suspicious of heart disease, the female gender and age of the mother between 14-20 year seem to be related with a high probability of presenting congenital heart disease.

Implications: The use of clinical measurements in physiotherapist is an important element for diagnosis and making decisions, and the difference of pre and post ductal saturation measurement is of vital importance in hospitalize newborns, in asymptomatic children in the first 24 hours of live.

Keywords: Oxymetry, Newborn, congenital heart disease

Funding acknowledgements: Samaritana´s University Hospital, physiotherapists of the Neonatal Intensive Care Unit and Physiotherapy Program of the National University of Colombia.

Topic: Cardiorespiratory; Critical care; Paediatrics

Ethics approval required: Yes
Institution: Samaritana´s University Hospital
Ethics committee: Medical Ethical Committee of the Samaritana´s University Hospital
Ethics number: Approval certificate n.0101-18.


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