Gases en sangre de arteria umbilical de neonatos a término en altura

Wilfredo Villamonte; Darío Escalante; Janet Yabar; María Jerí; Paola Peralta; Robert Ochoa

doi:10.17843/rpmesp.2014.311.12

Authors

Wilfredo Villamonte CENIMFA, Centro de Investigación de Medicina Materno Fetal de Altura. Cusco, Perú. Universidad Nacional San Antonio Abad del Cusco. Cusco, Perú. Médico ginecoobstetra.
Darío Escalante Universidad Nacional San Antonio Abad del Cusco. Cusco, Perú. Departamento de Pediatría, Hospital Nacional Adolfo Guevara Velazco, EsSalud. Cusco, Perú. médico neonatólogo.
Janet Yabar Departamento de Pediatría, Hospital Nacional Adolfo Guevara Velazco, EsSalud. Cusco, Perú. médico neonatólogo.
María Jerí CENIMFA, Centro de Investigación de Medicina Materno Fetal de Altura. Cusco, Perú. Departamento de Ginecobstetricia, Hospital Adolfo Guevara Velazco, EsSalud. Cusco, Perú. licenciada en Obstetricia.
Paola Peralta Departamento de Ginecobstetricia, Hospital Adolfo Guevara Velazco, EsSalud. Cusco, Perú. licenciada en Obstetricia.
Robert Ochoa Departamento de Ginecobstetricia, Hospital Adolfo Guevara Velazco, EsSalud. Cusco, Perú. tecnólogo médico.

DOI:

https://doi.org/10.17843/rpmesp.2014.311.12

Keywords:

Reference values, Fetal blood, Infant, newborn, Altitude

Abstract

In order to determine the normal values of arterial blood gases in the umbilical artery of term infants at 3400 m altitude, a cross-sectional study was conducted. It was performed in the umbilical artery blood of 300 term infants, with an adequate gestational age and whose birth took place between January 2010 and December 2011 at the Essalud National Hospital Adolfo Guevara Velazco (Cusco, Peru). It was found that the average pH of healthy term infants was 7.33 ± 0.07; the values for percentiles 5 and 95 were 7.18 and 7.40 respectively. Tables with the 5th and 95th percentiles for pH, pO2, pCO2, SO2, p50, base excess and HCO3 of the umbilical artery of term infants at 3400 m altitude are provided.