BioMed Research International / 2016 / Article / Tab 2

Research Article

Morphokinetic Characteristics and Developmental Potential of In Vitro Cultured Embryos from Natural Cycles in Patients with Poor Ovarian Response

Table 2

Prevalence of different types of cleavage irregularities, relationship with classical morphology score at the time of transfer, and live births in 53 natural cycles of poor responders.

FrequencyGood quality embryo
(at the time of transfer)
Live births

Normally developing embryos26 (49.1)16 (30.2)6
Embryos with single irregularity16 (30.2)2 (3.8)0
 Direct division in >2 blastomeres7 (13.2)2 (3.8)0
 Chaotic cleavage1 (1.9)0 (0)0
 Reverse cleavage0 (0)0 (0)0
 Developmental arrest8 (15.1)0 (0)0
Embryos with multiple irregularities11 (20.8)0 (0)0

Total5318 (34,0)6

Note: values in parentheses are percentages.

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