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Related Experiment Videos

Chromosomal abnormalities in ectopic pregnancy chorionic villi

W A Block1, G C Wolf, R G Best

  • 1Department of Obstetrics and Gynecology, University of South Carolina School of Medicine, Columbia, USA.

Journal of the Society for Gynecologic Investigation
|November 24, 1998
PubMed
Summary

Chromosomal abnormalities in ectopic pregnancy chorionic villi occur at a rate similar to intrauterine gestations. Ultrasound findings of a gestational sac or fetal pole often indicate a normal karyotype in these pregnancies.

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Area of Science:

  • Reproductive Medicine
  • Genetics
  • Obstetrics

Background:

  • Ectopic pregnancy poses significant risks to maternal health.
  • Karyotype analysis of chorionic villi can identify chromosomal abnormalities.

Purpose of the Study:

  • To determine the incidence of chromosomal abnormalities in ectopic pregnancy chorionic villi.
  • To correlate ultrasound findings with karyotype results in ectopic pregnancies.

Main Methods:

  • Prospective study involving surgical therapy for ectopic pregnancy.
  • Chorionic villi were cultured for karyotype analysis.
  • Patient records and ultrasound findings were reviewed and correlated with karyotype results.

Main Results:

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  • Karyotype analysis was successful in 21 of 22 ectopic pregnancy cases.
  • Three (14%) of the analyzed chorionic villi revealed abnormal karyotypes.
  • Normal karyotypes were associated with ultrasound findings of fetal development or gestational sac in 15/18 patients.

    • Conclusions:

    • Karyotype analysis of ectopic pregnancy chorionic villi is highly successful.
    • The rate of chromosomal abnormalities in ectopic pregnancies is comparable to intrauterine gestations.
    • Presence of a gestational sac or fetal pole on ultrasound suggests a normal karyotype.