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Table 8 Clinical outcome of different quality blastocysts

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

  Transfer Good grade blastocyst   Transfer sub-optimum blastocyst
  Cycles
(n)
Age
(yrs)
No. of
blastocyst
PR
(%)
IR
(%)
MR
(%)
OPR
(%)
Cycles
(n)
Age
(yrs)
No. of
blastocyst
PR
(%)
IR
(%)
MR
(%)
OPR
(%)
LAH group 40 30.5 ± 4.3 1.4 ± 0.5 67.5(27/40) 54.7
(29/53)
18.5
(5/27)
55.0 25 31.9 ± 4.2 1.5 ± 0.5 24.0
(6/25)
16.2
(6/37)
1/6 20.0
N-LAH group 29 31.6 ± 3.6 1.3 ± 0.5 51.7(15/29) 45.9
(17/37)
6.7
(1/15)
48.3 19 30.3 ± 4.3 1.6 ± 0.5 15.8
(3/19)
12.9
(4/31)
1/3 10.5
P   0.242 0.472 0.218 0.413 0.293 0.581   0.238 0.327 0.710 0.701   0.566
  1. LAH Laser assisted hatching, N-LAH Non laser assisted hatching, PR pregnancy rate, IR implantation rate, MR miscarriage rate, OPR ongoing pregnancy rate