Karyotypes in pregnancy losses, first 31 cases studied in Costa Rica

Authors

  • Isabel Castro Volio Universidad de Costa Rica
  • Fernando Ortíz Morales Universidad de Costa Rica
  • Luisa Valle Bourrouet Universidad de Costa Rica

DOI:

https://doi.org/10.51481/amc.v55i4.815

Keywords:

pregnancy loss, karyotypes, cytogenetics

Abstract

The laboratory has received 31 samples of abortion material since 2005. For 24 cases, we have information about the gestational age at which the sample was taken. All cases were an early pregnancy loss except for one with 26 weeks of pregnancy. The average gestational age for cases of early abortion was 8 weeks and 6 days. All samples had some degree of bacterial contamination. However, out of 31 samples, we failed to obtain cell cultures only in 7 due to high contamination. Therefore, the failure rate of the cultures was 22%. Out of the 24 karyotypes obtained, 15 were 46,

XX, 3 were 46, XY and 6 were abnormal, for a 25% of chromosome aberrations in these samples. It is possible that the percentage of abnormal chromosomes found is underestimated due to sample contamination with maternal cells. For 90% of cases, the average turn around time of the laboratory was 24 days.

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References

Petrozza JC, Berin I. Recurrent Early Pregnancy Loss. En: http:// emedicine.medscape.com/article/260495-overview. Updated: Jul 9, 2012.

Hogge WA, Byrnes AL, Lanasa MC, Surti U. The clinical use of karyotyping spontaneous abortions. Am J Obstet Gynecol 2003; 189:397-400; discussion 400-2.

Bick RL, Madden J, Heller KB, Toofanian A. Recurrent Miscarriage: Causes, Evaluation, and Treatment. Medscape General Medicine

; 1. En: http://www.medscape.com/viewarticle/722321_1

Sugiura-Ogasawara M, Ozaki Y, Katano K, Suzumori N, Kitaori T, Mizutani E. Abnormal Embryonic Karyotype is the Most Frequent Cause of Recurrent Miscarriage. Hum Reprod 2012; 27:22972302.

Association for Clinical Cytogenetics and Clinical Molecular Genetics Society. Professional Standards Committee. En: www. cmgs.org

Dewald GW, Michels VV. Recurrent miscarriages: cytogenetic causes and genetic counseling of affected families. Clin Obstet Gynecol 1986;29:865-885

Malespín-Bendaña W, Ortiz-Morales F, Castro-Volio I. Diagnóstico molecular de cromosomopatías fetales en Costa Rica. Acta Méd Costarric 2009; 51:36-40.

Diego-Álvarez D, García-Hoyos M, Trujillo MJ, GonzálezGonzález C, Rodríguez de Alba M, Ayuso C, et al. Application of quantitative fluorescent PCR with short tandem repeat markers to the study of aneuploidies in spontaneous miscarriages. Hum Reprod 2005; 20:1235-1243, doi:10.1093/humrep/deh781.

Published

2013-10-21 — Updated on 2013-10-21

Versions

How to Cite

Karyotypes in pregnancy losses, first 31 cases studied in Costa Rica. (2013). Acta Médica Costarricense , 55(4), 188-191. https://doi.org/10.51481/amc.v55i4.815