BJOG : an international journal of obstetrics and gynaecology
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Review Meta Analysis Comparative Study
Additional information from chromosomal microarray analysis (CMA) over conventional karyotyping when diagnosing chromosomal abnormalities in miscarriage: a systematic review and meta-analysis.
Approximately 50% of spontaneous miscarriages are associated with chromosome abnormalities. Identification of these karyotypic abnormalities helps to estimate recurrence risks in future pregnancies. Chromosomal microarray analysis (CMA) is transforming clinical cytogenetic practice with its ability to examine the human genome at increasingly high resolution. ⋯ Compared with karyotyping, there appears to be an increased detection rate of chromosomal abnormalities when CMA is used to analyse the products of conception; however, some of these abnormalities are VOUS, and this information should be provided when counselling women following miscarriage and when taking consent for the analysis of miscarriage products by CMA.