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Pattern and prenatal diagnosis of skeletal dysplasias in Qatar population
Badreldeen Ahmed1, Abdel-Baset Fakhry, Ana Tikvica Luetic
1Feto-Maternal Unit, Women's Hospital, Hamad Medical Corporation, Doha, Qatar. profbadreldeen@hotmail.com
Objective:
To determine the pattern of skeletal dysplasias in Qatar population and to assess the accuracy of prenatal diagnosis and prognosis.
Methods:
This was a retrospective descriptive study of 30 women with high risk for skeletal dysplasias. The recruited women were submitted to clinical assessment, ultrasound scanning using 2-dimensional, 3-dimensional/4-dimensional and colour Doppler technique with possible molecular diagnosis. The findings were compared with the postnatal or postmortem assessments. Final diagnosis was based on clinical examination, skeletal survey, autopsy and molecular testing as deemed necessary.
Results:
Thirty cases of skeletal dysplasia were antenatally diagnosed over 4-year period with family history in few cases. Among many entities thanatophoric dysplasia showed largest prevalence [7(23%)]. Prenatal diagnosis was accurate in 76% of foetuses while the first indicator of abnormality was a suspected anomaly found during routine ultrasound assessment in most cases [17(56%)]. Prediction of lethality based on ultrasound findings was 100% accurate.
Conclusions:
This study confirmed the possibility of good prenatal diagnosis of skeletal dysplasias present among Qatar population. Diagnosis based on ultrasound assessment will improve by adding molecular techniques with positive impact on prenatal care.
