Human Reproduction, Vol. 18, No. 11, 2342-2349,
November 2003
© 2003 European Society of Human Reproduction and Embryology
Hepatitis C virus detection in follicular fluid and culture media from HCV+ women, and viral risk during IVF procedures
1 Service d’Histologie-Embryologie-Cytogénétique, 2 Service de Virologie, 3 Service de Gynécologie-Obstétrique Hôpital Bichat-Claude Bernard, AP-HP, Paris and 4 Département de Biostatistique INSERM U 444, Hôpital Saint-Louis, AP-HP, Paris, France
5 To whom correspondence should be addressed at: Service d’Histologie-Embryologie-Cytogénétique, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75877 Paris, Cedex 18, France. e-mail: aviva.devaux{at}bch.ap-hop-paris.fr
BACKGROUND: Hepatitis C virus (HCV) has been detected in sperm, but no data are available on follicular fluid (FF) collected on IVF procedures. The aim of this study was to: (i) search for HCV RNA in FF and in culture media at each step of IVF undergone by HCV+ women; (ii) investigate the impact of blood contamination of FF induced by vascular injury associated with transvaginal ovarian puncture; (iii) assess risk for the embryo and the impact on the contamination rate of the newborn; and (iv) determine the viral risk presented by these fluids in order to define guidelines for the laboratory. METHODS: FF from 22 IVF procedures performed in 17 HCV+ women were classified as either clear, lightly bloody or bloody FF. Oocytes from each FF were washed and incubated in separated fertilization media. At 20 h after puncture (day 1), the fertilized oocytes were washed and transferred to fresh media until embryo transfer. HCV RNA was detected and quantified in FF and media using Cobas Amplicor and Cobas Monitor HCV RNA kits. RESULTS: HCV RNA was positive in 39 of 44 FF samples, and viral loads increased with blood contamination. At day 1, after rinsing of oocyte–cumulus complexes, only 8 of 44 media were still positive. Viral loads were quantified in 5 of 8 positive media, were below the test sensitivity threshold in 4 of 5 HCV RNA-positive media, and just above it in the fifth medium. The day of transfer HCV RNA was undetectable in all media. CONCLUSIONS: HCV RNA was detected in 89% of FF irrespective of the degree of blood contamination, and in 25% of the media at day1. FF must be considered as potentially infected. Blood contamination increases HCV load in the FF. Rinsing oocytes seems significantly to discard the HCV RNA. It is too early to assess the impact of IVF on the contamination rate of HCV mothers’ offspring. After counselling, attempting IVF in HCV+ women is justified. Universal guidelines prevent nosocomial infection, and IVF does not specifically increase the professional risk.
Key words: culture media/follicular fluid/HCV RNA/hepatitis C virus/IVF
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