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Revista Peruana de Ginecología y Obstetricia
versión On-line ISSN 2304-5132
Resumen
REYNA-VILLASMIL, Eduardo et al. Red cell distribution width in the second trimester of pregnancy as a predictor of preeclampsia. Rev. peru. ginecol. obstet. [online]. 2022, vol.68, n.2, 00002. Epub 06-Jul-2022. ISSN 2304-5132. http://dx.doi.org/10.31403/rpgo.v68i2409.
Objective:
To establish the usefulness of red cell distribution width in the second trimester of pregnancy as a predictor of the development of preeclampsia.
Design:
Case-control study. Institution: Hospital Central "Dr. Urquinaona", Maracaibo, Venezuela. Participants: Pregnant women between 17 and 20 weeks who attended prenatal consultation and were followed up until to term.
Methods:
Blood samples were taken and followed up until delivery to establish if they developed preeclampsia.
Main outcome measures:
General characteristics, values of red cell distribution width and prognostic efficacy.
Results:
Cases were 41 pregnant women who developed preeclampsia (group A) and 463 pregnant women were considered as controls (group B). No statistically significant differences were found in maternal age, gestational age, and systolic and diastolic blood pressure at the time of ultrasound (p = ns). Gestational age at the time of diagnosis of preeclampsia in group A was 35.0 +/- 3.2 weeks. Significant differences were found in red cell distribution width values between patients in group A (14.5 +/- 2.3%) and patients in group B (13.8 +/- 1.8%; p = 0.039). A cut-off value of 14% presented a value under the curve of 0.576 with sensitivity of 63.4%, specificity of 49.7%, positive predictive value of 10.0% and negative predictive value of 93.9%.
Conclusion:
The values of red cell distribution width values in the second trimester are not useful in the prediction of preeclampsia.
Palabras clave : Erythrocyte indices; Red cell distribution width; Preeclampsia; prediction; Pregnancy.