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  • Title: Cleft Palate with or without Cleft Lip: The Role of Retronasal Triangle View and Maxillary Gap at 11-14 Weeks.
    Author: De Robertis V, Rembouskos G, Fanelli T, Votino C, Volpe P.
    Journal: Fetal Diagn Ther; 2019; 46(6):353-359. PubMed ID: 30852571.
    Abstract:
    OBJECTIVE: To evaluate the presence of maxillary gap (MG) and abnormal retronasal triangle (RT) as markers of cleft palate (CP) with and without cleft lip in the first trimester and to assess their association with the type of orofacial cleft (OC). METHODS: The RT and the mid-sagittal view of the face were evaluated retrospectively by two operators in 26 fetuses with OC and in 80 normal controls to detect abnormal RT and/or MG. The agreement between operators was calculated. RESULTS: Amongst the 26 fetuses, there were 15 cases of bilateral, 6 cases of unilateral, and 4 cases of median cleft lip and palate, and 1 case of CP alone. The MG was observed in 18 cases by operator 1 and in 17 cases by operator 2; an abnormal RT was detected in 21 cases by operator 1 and in 22 cases by operator 2. Great agreement between operators was obtained. In controls, MG or abnormal RT was suspected in 6 and 2-4% of cases, respectively. CONCLUSIONS: RT seems to be more sensitive compared to MG; however, the latter showed an additional diagnostic ability when the secondary palate was involved. Both approaches in combination could be useful in detecting OC in the first trimester.
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