Resumen

APAZA VALENCIA, John; PUMA CONDORI, Sergio  y  ZUNIGA CACERES, Renato. Evaluation of pulmonary artery acceleration time/systolic ejection time Doppler index as marker of pulmonary development in preterm fetuses. Rev Per Ginecol obstet. [online]. 2013, vol.59, n.1, pp.9-13. ISSN 2304-5132.

Objectives: To determine fetal pulmonary artery acceleration time/systolic ejection time Doppler index as marker of pulmonary development in preterm fetuses. Design: Prospective, descriptive study. Setting: Hospital III Honorio Delgado, Arequipa, Peru. Participants: Preterm pregnant women with no evidence of pathology. Interventions: Between July 2011 and August 2012, correlation of acceleration time/systolic ejection time pulmonary artery Doppler index (AT/ET index) with gestational age was performed in pregnant women 25 through 36 weeks of gestation attended in routine hospital ultrasound evaluation. Main outcome measures: Mean index value by age groups and comparison. Results: In 93 preterm pregnant women 22.4 year-old average there was rho linear correlation in pulmonary artery AT/ET index estimation in relation to gestational age. AT/ET index average values were 0.228 and 0.258 for respectively 29-30 and 31-32 weeks with significant difference (p<0.05). AT/ET index values for 33-34 and 35-36 weeks gestations were respectively 0.272 and 0.292, statistically different (p<0.05). Conclusions: Acceleration time/systolic ejection time Doppler index of the fetal pulmonary artery showed linear correlation with gestational age and had a significant change coincident and marker of pulmonary alveolar development.

Palabras clave : Fetal Doppler; fetal lung development; pulmonary artery.

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