RESUMO
Resumen OBJETIVO: Comparar el índice neutrófilo-linfocito, la relación plaquetas-linfocito y la distribución de la anchura del eritrocito de mujeres con preeclampsia con o sin criterios de severidad y los de mujeres sin ésta. MATERIALES Y MÉTODOS: Estudio retrospectivo, de casos y controles, efectuado en mujeres con y sin preeclampsia atendidas entre enero y diciembre de 2019. RESULTADOS: Se estudiaron 70 mujeres con preeclampsia y 70 con embarazo sin esta complicación. El índice neutrófilo-linfocito fue significativamente mayor en las mujeres con preeclampsia (4.11 ± 2.76; IC95%: 3.47-4.75) que en las mujeres sin esta complicación (2.99 ± 1.6; IC95%: 2.62-3.36; p = 0.004), similar a la relación plaquetas-linfocitos (117.61 ± 47.53; IC95%:106.48-128.24 vs 97.64 ± 43.67; IC95%: 87.41-107.87; p = 0.006) y para la distribución de la anchura del eritrocito (14.46 ± 1.9; IC95%: 14.02-14.9 vs 13.56 ± 1.38; IC95%: 13-13.72; p = 0.0002). Ninguno de estos parámetros logró discriminar entre las pacientes con preeclampsia con o sin criterios de severidad. CONCLUSIÓN: Un índice neutrófilo-linfocito ≥ 5.1 y una relación plaquetas-linfocito ≥ 113.1 son capaces de discriminar de manera adecuada entre preeclampsia con o sin criterios de severidad.
Abstract OBJECTIVE: To compare the neutrophil-lymphocyte ratio, platelet-lymphocyte ratio and erythrocyte width distribution, of women with preeclampsia with or without severity criteria and those of women without. MATERIALS AND METHODS: Retrospective case-control study in 70 women with preeclampsia and 70 with normal pregnancy between January and December 2019. RESULTS: Seventy women with preeclampsia and 70 with pregnancy without this complication were studied. The neutrophil-lymphocyte ratio was significantly higher in women with preeclampsia (4.11 ± 2.76; 95%CI: 3.47-4.75), than in women with normal pregnancies (2.99 ± 1.6; 95%CI: 2.62-3.36; p = 0.004); which is similar for the platelet-lymphocyte ratio (117.61 ± 47.53, 95%CI: 106.48-128.24 vs 97.64 ± 43.67; 95%CI: 87.41-107.87; p = 0.006) and for the distribution of the width of the erythrocyte; (14.46 ± 1.9, CI95%: 14.02-14.9 vs 13.56 ± 1.38; CI95%: 13-13.72; p = 0.0002). None of these parameters was able to discriminate between patients with preeclampsia with or without severity criteria. A neutrophil-lymphocyte ratio ≥ 5.1 discriminates between women with a normal pregnancy and those with preeclampsia with or without severity criteria [area under the curve of 0.746, (95%CI: 0.664-0.827)], sensitivity 42%, specificity 91%, positive predictive value 82%, negative predictive value 60% and Odds Ratio 7.1 (95%CI: 2.7-18.6, p = 0.001). The platelet-lymphocyte ratio ≥ 113.4 can discriminate between women with a normal pregnancy and preeclampsia with or without severity criteria, with an area under the curve of 0.617 (95% CI 0.525-0.709). CONCLUSION: A neutrophil-lymphocyte ratio ≥ 5.1, and a platelet-lymphocyte ratio ≥ 113.1 are able to adequately discriminate between patients with normal pregnancy and those with preeclampsia with or without severity criteria.
RESUMO
BACKGROUND: Free fatty acids, also known as nonesterified fatty acids, are proinflammatory molecules that induce insulin resistance in nonpregnant individuals. Nevertheless, the concentration of these molecules has not been systematically addressed in pregnant women. OBJECTIVE: This meta-analysis is aimed at evaluating the difference in free fatty acid plasma levels between women with gestational diabetes and healthy pregnant controls and their intrinsic and extrinsic determinants. METHODS: We performed a systematic search to find relevant studies published in English and Spanish using PubMed, SCOPUS, and ISI Web of Knowledge. We included observational studies measuring the mean plasma levels of free fatty acids among gestational diabetes and healthy pregnant women, with at least ten subjects being analyzed in each group. The standardized mean difference (SMD) by random effects modeling was used. Heterogeneity was assessed using Cochran's Q, H, and I 2 statistics. RESULTS: Among the 290 identified studies, twelve were selected for analysis. A total of 2426 women were included, from which 21% were diagnosed as having gestational diabetes. There were significantly higher levels of free fatty acids among women with gestational diabetes (SMD: 0.86; 0.54-1.18; p < 0.001) when compared to healthy pregnant controls and between-study heterogeneity (I 2 = 91%). The metaregression analysis showed that the gestational age at inclusion was the only cofactor influencing the mean levels of free fatty acids, indicating a trend towards lower plasma levels of free fatty acids later in gestation (estimate: -0.074; -0.143 to -0.004; p = 0.036). No significant publication bias was found nor a trend towards greater results in small studies. CONCLUSIONS: Women with gestational diabetes have higher levels of free fatty acids when compared to healthy pregnant controls. More investigation is needed to assess the potential role of free fatty acids in the prediction of gestational diabetes earlier in pregnancy.