Abstract

DIEZ CHANG, Guillermo et al. Uterine artery pulsatility index reference chart selection between 24 and 40 weeks of gestational age for a health institution in Lima, PeruUterine artery pulsatility index reference chart selection between 24 and 40 weeks of gestational age for a health institution in Lima, Peru. Rev. peru. ginecol. obstet. [online]. 2020, vol.66, n.3, 00008. ISSN 2304-5132.  http://dx.doi.org/10.31403/rpgo.v66i2274.

Uterine artery resistance is assessed to detect inadequate placentation in pregnant women, that increases the risk to develop preeclampsia, intrauterine growth restriction and other complications associated with placental insufficiency. Objective: To identify the uterine arteries pulsatility index (UtAPI) reference chart that best fits our institutional data. Methods: Retrospective, cross-sectional study that evaluated 1 753 single pregnancies; 2 031 UtAPI measurements of the uterine arteries were obtained. Mean UtAPI was compared with the reference charts published by Gomez, Limay and Weichert. Results: There was a mild but significant (r=0.16) negative correlation between UtAPI and gestational age between 24 and 40 weeks of gestation; 6.5%, 7.5% and 15% of our measurements were above the 95 centile of respectively Weichert, Limay and Gomez reference charts. Conclusions: In our population, the UtAPI distribution fitted best with Weichert reference chart. More prospective studies are needed to validate this clinical finding.

Keywords : Uterine arteries; Doppler color ultrasonography.

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