Fetal frontomaxillary facial angle between 11 and 13+6 weeks of gestation in a Brazilian population: influence of different races
Data
2013-07-01
Autores
Nascimento Panigassi, Ana Paula 
Araujo Junior, Edward
Machado Nardozza, Luciano Marcondes
Moron, Antonio Fernandes
Silva Pares, David Baptista da
Tipo
Artigo
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Resumo
Objective: To evaluate the influence of different races over the measurement of the frontomaxillary facial angle between 11 and 13 + 6 weeks of pregnancy in a Brazilian population.Methods: A cross-sectional study was conducted with 332 healthy pregnant women, with a crown-rump length (CRL) between 47 and 84 mm. Such measurements were taken abdominally, using the mid-sagittal plane, and the angle was measured by tracing a line over the palate and a line from the anterosuperior maxillary angle all the way to the external part of the forehead. As for the reference intervals, a simple linear regression between the frontomaxillary facial angle and the CRL was used, as well as Pearson's correlation coefficient (r). To evaluate the difference between races, a variance analysis was used (ANOVA). To calculate reproducibility, the intraclass correlation coefficient (ICC) was used.Results: the means for the fetal frontomaxillary facial angle in white, black and mixed races were 81.8 +/- 6.6; 82.2 +/- 6.1 and 81.4 +/- 6.2 mm, respectively. There was no statistical difference between races (p = 0.713). A decreasing correlation between the frontomaxillary facial angle and the CRL was observed for the black (r = -0.450) and mixed (r = -0.212) races. Excellent intraobserver reproducibility was observed, as well as a satisfactory interobserver reproducibility, with ICC of 0.858 and 0.605, respectively.Conclusion: There were no significative statistical differences in the measurement of the fetal frontomaxillary facial angle between 11 and 13 + 6 weeks of pregnancy in the different races in a Brazilian population.
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Citação
Journal of Maternal-fetal & Neonatal Medicine. London: Informa Healthcare, v. 26, n. 11, p. 1116-1120, 2013.