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Table 4 Outcomes of blastocyst culture in LAH and N-LAH groups in cycles without good grade embryo

From: Laser-assisted hatching in lower grade cleavage stage embryos improves blastocyst formation: results from a retrospective study

  

LAH

N-LAH

P

Cycles

 

48

84

 

No. of LGCE

 

117

185

 

Blastocyst rate (%)

D5

16.2(19/117)

11.8(22/185)

 > 0.05

 

D6

17.1(20/117)

16.2(30/185)

 > 0.05

 

Total

33.3(39/117)

28.1(52/185)

 > 0.05

Usable blastocyst rate (%)

D5

9.4(11/117)

4.3(8/185)

 > 0.05

 

D6

12.8(15/117)

4.9(9/185)

0.013

 

Total

22.2(26/117)

9.2(17/185)

0.002

Good grade blastocyst rate (%)

D5

5.1(6/117)

2.2(4/185)

 > 0.05

 

D6

1.7(2/117)

1.6(3/185)

 > 0.05

 

Total

6.8(8/117)

3.8(7/185)

 > 0.05

Sub-optimum blastocyst rate (%)

D5

4.3(5/117)

2.2(4/185)

 > 0.05

 

D6

11.1(13/117)

3.2(6/185)

0.006

 

Total

15.4(18/117)

5.4(10/185)

0.004

  1. LAH Laser assisted hatching, N-LAH Non laser assisted hatching