Follicular flushing increases the number of oocytes retrieved in poor ovarian responders undergoing in vitro fertilization: a retrospective cohort study

Table 1 Demographics, treatment characteristics, and oocyte and embryo outcomes of trial participants (n = 291)

	Poor ovarian responders
	N (%)
Primary infertility	102(35.1%)
Secondary infertility	189(64.9%)
	Mean ± SD
Age (years)	39.32 ± 2.55
Duration of infertility (years)	5.44 ± 3.65
Peak estradiol (pmol/L)	2665.11 ± 2401.38
Follicles aspirated	2.07 ± 0.85
Oocytes retrieved
Initial aspirate	1.23 ± 1.00 ^a
Aspiration and all flushes	1.73 ± 0.96 ^a
Mature oocytes	1.54 ± 0.94
Number of fertilizations	1.46 ± 0.96
Number of cleavages	1.43 ± 0.95
Number of high-quality embryos	1.03 ± 0.87

^a Differences in the number of oocytes retrieved from the initial aspirate group and the aspiration+all flushes group were significant (Student’s t-test, P = 0.000)

ISSN: 1472-6874