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Clinical and Experimental Obstetrics & Gynecology  2008, Vol. 35 Issue (2): 121-123    DOI:
Original Research Previous articles | Next articles
An objective measurement to diagnose micrognathia on prenatal ultrasound
G. Palit1, Y. Jacquemyn1, *(), M. Kerremans1
1Department of Obstetrics and Gynaecology Antwerp University Hospital UZA, Edegem (Belgium)
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Abstract  
Purpose: We introduce the frontal naso-mental angle as an objective measurement for the prenatal detection of fetal retrognathia. The aim of this study is to present normal values for the frontal naso-mental angle from 18 to 35 weeks gestational age. Materials and methods: In 81 patients between gestational ages 18 and 35 weeks the frontal naso-mental angle was measured on a profile view of the foetal face. The values were compared with four cases of proven Pierre Robin syndrome. Results: The frontal nasomental angle is not dependent on gestational age, the mean value is 146.74°, standard deviation 2.7°; 5th percentile 142°, 95th percentile 151°. All four cases of Pierre Robin syndrome demonstrated a significantly lower frontal naso-mental angle below the 5th percentile. Conclusion: The frontal naso-mental angle represents an objective way to diagnose retrognathia.
Key words:  Retrognathia      Pierre Robin syndrome      Prenatal diagnosis      Foetal face     
Published:  10 June 2008     
*Corresponding Author(s):  Y. JACQUEMYN     E-mail:  yves.jacquemyn@uza.be

Cite this article: 

G. Palit, Y. Jacquemyn, M. Kerremans. An objective measurement to diagnose micrognathia on prenatal ultrasound. Clinical and Experimental Obstetrics & Gynecology, 2008, 35(2): 121-123.

URL: 

https://ceog.imrpress.com/EN/     OR     https://ceog.imrpress.com/EN/Y2008/V35/I2/121

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