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[Early amniocentesis in prenatal diagnosis]
B Pawłowska1, A Ilnicka, J Czyzewska
1Zakładu Genetyki, Instytutu Psychiatrii i Neurologii, Warszawa.
Ginekologia Polska
|May 1, 1995
Summary
Early amniocentesis, performed between 12-14 weeks gestation, yielded successful cytogenetic results comparable to later procedures. This prenatal diagnosis technique proved effective for early genetic screening.
Area of Science:
- Medical Genetics
- Prenatal Diagnosis
- Obstetrics
Background:
- Prenatal diagnosis allows for early detection of fetal abnormalities.
- Traditional amniocentesis is typically performed between 15-20 weeks of gestation.
- Advancements in medical technology aim to enable earlier diagnostic interventions.
Purpose of the Study:
- To evaluate the efficacy and timing of early amniocentesis.
- To compare the success rate and turnaround time of early amniocentesis with conventional methods.
- To assess the feasibility of cytogenetic examination using early amniocentesis.
Main Methods:
- Retrospective analysis of prenatal diagnoses conducted between 1990-1991.
- Application of early amniocentesis (12-14 weeks gestation) in a subset of cases.
- Cytogenetic examination of amniotic fluid samples.
Main Results:
- A total of 483 prenatal diagnoses were performed.
- Early amniocentesis was utilized in 111 (23%) cases.
- Cytogenetic examination was successful in all early amniocentesis cases, with 23 positive results.
- The time to obtain results for early amniocentesis was comparable to that of amniocentesis performed later in gestation.
Conclusions:
- Early amniocentesis is a successful technique for prenatal cytogenetic diagnosis.
- The timing of amniocentesis does not significantly impact the time required for cytogenetic analysis.
- This method allows for earlier detection of genetic abnormalities, facilitating timely clinical management.