Related Experiment Videos
Cytogenetic findings in 4952 prenatal diagnoses. An Italian collaborative study
Human Genetics
|January 1, 1982
Summary
Prenatal diagnosis in Italy identified 125 abnormal fetal karyotypes (2.5%) from 4952 cases between 1972-1980. This study provides crucial data on chromosome anomalies, particularly from advanced maternal age and previous affected children.
Area of Science:
- Medical Genetics
- Reproductive Medicine
- Cytogenetics
Background:
- Prenatal diagnosis development in Italy was historically constrained by abortion laws.
- Consistent investigation of prenatal cases has emerged more recently.
- This study consolidates data from a significant period of early prenatal diagnosis in Italy.
Purpose of the Study:
- To report the experience of ten Italian centers in prenatal chromosome diagnosis.
- To analyze the frequencies and types of chromosome anomalies detected.
- To compare Italian findings with European data from the Munich Conference.
Main Methods:
- A collaborative study involving ten Italian centers.
- Analysis of 4952 prenatal chromosome diagnoses performed between 1972 and 1980.
- Categorization of diagnoses by indication: advanced maternal age, previous child with anomaly, parental anomaly, and miscellaneous.
Main Results:
- A total of 125 abnormal fetal karyotypes were identified, representing 2.5% of all diagnoses.
- Unbalanced chromosome anomalies accounted for 89 cases (1.8%).
- Detailed frequencies and types of anomalies are presented for each indication group.
Conclusions:
- The study provides valuable data on prenatal chromosome anomalies in Italy during the 1970s.
- Findings offer insights into the main indications for prenatal diagnosis and associated risks.
- Comparison with European data highlights the contribution of this Italian cohort, largely absent from prior major reports.