Table 2 Short term vapor storage of vitrified embryos on different carriers to simulate transport conditions

	Cleavage Stage Vitrification
Carrier	Cryoloop (n = 40)		HSV Straw (n = 35)		Cryotip (n = 40)
Storage Condition	LN2	Vapor	LN2	Vapor	LN2	Vapor
Survival (%)	100	100	100	100	100	100
Development to blastocyst after 48 hours (%)	100	100	100	93	100	100
Total blastomeres ^a (mean ± SD)	82.21 ± 13.28	89.18 ± 18.52	87.20 ± 10.67	88.5 ± 9.55	81.10 ± 14.09	75.53 ± 17.62
	Blastocyst Stage Vitrification
Carrier	Cryoloop (n = 41)		HSV straw (n = 40)		Cryotip (n = 35)
Storage Condition	LN2	Vapor	LN2	Vapor	LN2	Vapor
Survival (%)	100	100	100	100	100	100
Re-expansion (%)	90	81	95	85	80	85
Total blastomeres ^a (mean ± SD)	108 ± 18	96 ± 19	96 ± 20	90 ± 20	96 ± 4	86 ± 19

^a Total cell count at termination of experiment for both Vit-CL and Vit-BL on day 5
No significant difference in survival, development, re-expansion or cell number after short term vapor storage as compared to liquid nitrogen

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