Embryo transfer after 2 or 5 days of IVF culture: a retrospective comparison

Lundqvist, Monalill; Rova, Karin; Simberg, Niklas; Lundkvist, Örjan

doi:10.1034/j.1600-0412.2002.810207.x

Cited by 14 publications

(8 citation statements)

References 39 publications

(49 reference statements)

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“…Although high pregnancy (50±70%) and implantation (30±50%) rates have been reported for blastocysts transfers (Gardner et al, 1998;Marek et al, 1999;Langley et al, 2001) the clinical evidence on the preference of blastocyst transfers to cleavage stage embryo transfers is still controversial. Several prospective studies have shown the superiority of blastocyst transfers over day 2/3 embryo transfers (Gardner et al, 1998;Van Der Auwera et al, 2002), while others have been unable to con®rm these ®ndings (Scholtes and Zeilmaker, 1996;Coskun et al, 2000;Huisman et al, 2000;Lundqvist et al, 2002). In a recent study (Rienzi et al, 2002), day 3 embryo transfers with combined evaluation at pronuclear and cleavage stages demonstrated similar results to blastocyst transfers.…”

Section: Discussionmentioning

confidence: 97%

Early cleavage predicts the viability of human embryos in elective single embryo transfer procedures

Salumets

Hydén-Granskog²,

Mäkinen³

et al. 2003

Human Reproduction

164

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Section: Discussionmentioning

confidence: 97%

Early cleavage predicts the viability of human embryos in elective single embryo transfer procedures

Salumets

Hydén-Granskog²,

Mäkinen³

et al. 2003

Human Reproduction

164

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Section: Methodsmentioning

confidence: 99%

Cytologic screening and human papilloma virus test in women undergoing artificial fertilization

Lundqvist

Westin

Lundkvist

et al. 2002

Acta Obstet Gynecol Scand

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“…In 100 of the women (47%) infertility was caused by female factors, in 62 (29%) it was caused by male factors, and in 50 (24%) no explanation for the infertility was found. The IVF treatment was performed in a standard way, as previously published (7). For HPV tests, smears were taken from the cervix in connection with the infertility work-up or during oocyte retrieval.…”

Section: Methodsmentioning

confidence: 99%

Cytologic screening and human papilloma virus test in women undergoing artificial fertilization

Lundqvist¹,

Westin²,

Lundkvist³

et al. 2002

Acta Obstet Gynecol Scand

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Acta Obstet Gynecol Scand 2002; 81: 949-953. C Acta Obstet Gynecol Scand 2002 Background. Infertile women in Sweden are offered in vitro fertilization (IVF) within the frame of the social security system. The present investigation was undertaken to evaluate the prevalence of genital human papilloma virus (HPV) infection in relation to the results of cytologic screening and to the infertility in these women. Material and methods. Two hundred and fourteen women, mean age 32 years (range 20-40), admitted to the Center for Reproduction at Uppsala University Hospital for investigation of infertility and IVF were studied. Human papilloma virus tests were performed by a sensitive polymerase chain reaction-based technique in cervical smears obtained at a medical examination or during oocyte retrieval. Cytologic screening results were obtained from medical records or at the time of investigation. The infertile women were compared with 197 healthy female controls. Results. Infertility resulted from female factors in 47% and male factors in 29% of the cases, and remained unexplained in 24%. Seven percent of the infertile women were HPV-positive compared with 9.1% of the controls. Only genital and oncogenic HPV types were identified. Human papilloma virus type 16 was most prevalent, and examination of the HPV 16 E6 gene showed that this prototype predominated over variants. No correlation was found between HPV infection and cause of infertility. Abnormal cytology was observed in 2.3% of the infertile women and 4.1% of the controls. Conclusions. Human papilloma virus infections might appear somewhat less frequently in infertile women admitted for IVF than in a control population. In both groups HPV infection was more common than cytologic abnormalities, possibly indicating that present HPV tests are more sensitive in detecting HPV infections than cytologic screening.

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Embryo transfer after 2 or 5 days of IVF culture: a retrospective comparison

Abstract: Prolongation of embryo culture from day 2 to day 5 did not improve the clinical outcome of the IVF treatment when measured as baby take home rate. Therefore, for the time being, this strategy does not increase our chances to move towards single embryo transfer.

Cited by 14 publications

References 39 publications

Early cleavage predicts the viability of human embryos in elective single embryo transfer procedures

Early cleavage predicts the viability of human embryos in elective single embryo transfer procedures

Cytologic screening and human papilloma virus test in women undergoing artificial fertilization

Cytologic screening and human papilloma virus test in women undergoing artificial fertilization

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