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R. Lenke, E. Ashwood, D. Cyr, M. Gravett, J. Smith, M. Stenchever (1985)
Genetic Amniocentesis: Significance of Intraamniotic Bleeding and Placental LocationObstetrics & Gynecology, 65
C. Giorlandino, L. Mobili, E. Bilancioni, Paolo D'alessio, O. Carcioppolo, P. Gentili, A. Vizzone (1994)
Transplacental amniocentesis: Is it really a higher‐risk procedure?Prenatal Diagnosis, 14
<h5>To the Editors:</h5> We thank McGrath for the interest in this case report. In this article we did not have any intention to imply that nonplacental amniocentesis is better than placental amniocentesis or that transplacental amniocentesis should be avoided. As McGrath mentioned, several studies showed very low complication rates by transplacental aspiration. However, in our clinic we still prefer not to traverse the placenta during amniocentesis, if it is possible. The reason for this attitude is the risk of inadvertent laceration of the vessels on the chorionic surface of the placenta. As it was observed by Giorlandino et al, 1 lightly blood-stained taps were obtained more in transplacental procedures than in nontransplacental procedures. Lenke et al 2 also reported that intraamniotic bleeding occurred more frequently with needle insertion through an interior placenta. It is also not clear whether the rate of fetomaternal bleeding or the rate of alloimmunization is increased after transplacental amniocentesis. As mentioned in a study, “. . . the risk of feto-maternal hemorrhage, which is reported to be higher for a transplacental procedure, must be considered in the case of an anterior placenta.” 1 We also suspect that transplacental amniocentesis can cause the premature separation
American Journal of Obstetrics and Gynecology – Wolters Kluwer Health
Published: Jul 1, 1998
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