Fetal cleft lip with and without cleft palate: US classification and correlation with outcome

Area of Science:

• Medical Imaging
• Prenatal Diagnosis
• Genetics

Background:

• Cleft lip with or without cleft palate (CL-P) is a common congenital anomaly.
• Accurate prenatal assessment is crucial for effective management and counseling.
• Existing classification systems may not fully capture the spectrum of CL-P and its implications.

Purpose of the Study:

• To establish a prenatal ultrasonographic (US) classification system for cleft lip with or without cleft palate (CL-P).
• To correlate this novel US classification with fetal outcomes, including concurrent anomalies and chromosomal abnormalities.
• To evaluate the utility of the classification in guiding prenatal counseling and management.

Main Methods:

• A 5-year retrospective and prospective study of 65 fetuses with CL-P identified via prenatal US.
• Development of a five-category classification system based on cleft type: lip alone, unilateral CL-P, bilateral CL-P, midline CL-P, and associated facial defects.
• Analysis of sonographic findings, concurrent anomalies, chromosomal abnormalities, and overall fetal outcome for each category.

Main Results:

• The ultrasonographic classification demonstrated a strong correlation with the severity of the defect and fetal outcome.
• Type 4 (midline CL-P) and Type 5 (associated facial defects) clefts were linked to universal concurrent anomalies and adverse fetal outcomes.
• Chromosome abnormalities varied significantly across types, ranging from 0% in Type 1 to 52% in Type 4, indicating prognostic value.

Conclusions:

• Prenatal ultrasonographic classification of CL-P is a valuable tool for predicting fetal outcomes.
• The proposed classification system can significantly enhance prenatal counseling and clinical management strategies for affected families.
• This standardized approach aids in risk stratification and informed decision-making during pregnancy.