2007
DOI: 10.3109/9780203090022.015
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One decade of experience with vitrification of human embryos in straws, hemi-straws, and high security vitrification straws

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Cited by 7 publications
(7 citation statements)
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“…As compared with ultra-rapid vitrification, a dramatic drop in the cooling rate to 1300°C/min is observed. Ali and Shelton (2007) and Vanderzwalmen et al (2007) observed that a decrease in the speed of cooling reduced the survival rate of embryos and has to be compensated by higher intracellular concentrations of cryoprotectant. According to these observations, the simplest and most logical way to counteract the increased risk of ice-crystal formation consists of increasing the exposure time of human blastocysts to the non-vitrifying solution (10/10 NVS).…”
Section: Discussionmentioning
confidence: 99%
“…As compared with ultra-rapid vitrification, a dramatic drop in the cooling rate to 1300°C/min is observed. Ali and Shelton (2007) and Vanderzwalmen et al (2007) observed that a decrease in the speed of cooling reduced the survival rate of embryos and has to be compensated by higher intracellular concentrations of cryoprotectant. According to these observations, the simplest and most logical way to counteract the increased risk of ice-crystal formation consists of increasing the exposure time of human blastocysts to the non-vitrifying solution (10/10 NVS).…”
Section: Discussionmentioning
confidence: 99%
“…Nous avons conçu deux systè mes de vitrification é tanches à LN2 permettant de garantir une asepsie maximale : le systè me Vitrification haute sé curité (VHS) (CryoBioSystem 1 -France) [6] et le « VitriSafe » [7] (MTG 1 -Germany) (Fig. 2).…”
Section: Syste`me « Ferme´» : Vitrisafeunclassified
“…Une chute significative des taux de survie a é té observé e lorsque ce protocole court a é té utilisé avec le systè me « fermé » [6]. En effet, il y a une relation inverse entre la vitesse de refroidissement et la concentration intracellulaire en CP [9].…”
Section: De´veloppement D'une Me´thode De Vitrification « Aseptique »unclassified
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“…Good results for zygotes (Al-Hasani et al, 2007), day-2 or 3 embryos (Balaban et al, 2008) and embryos in blastocyst phase (Mukaida et al, 2009) have been obtained. The superiority to slow-freezing and the adaptability of fast-freezing to a closed system have also been demonstrated for embryos (VanderZwalmen et al, 2007) but these improvements will have fewer consequences for the future of ART than egg freezing. The new technique will probably render obsolete the cumbersome programmable freezers (Vajta & Nagy, 2009), but that is a mere detail compared to the other gains that can be expected.…”
Section: Introductionmentioning
confidence: 99%