Oocyte retrieval timing based on spontaneous luteinizing hormone surge during natural cycle in vitro fertilization treatment.

Abstract:

OBJECTIVE:To determine the efficiency of oocyte retrieval (OR) timing based on the occurrence of spontaneous LH surge during natural cycle IVF (ncIVF) treatment. DESIGN:Retrospective cohort study. The cohort was divided into five subgroups according to the presumed stage of spontaneous LH surge on scheduling day (1A: before onset; 1B: surge start; 2: ascending slope; 3: peak; and 4: descending slope). SETTING:Private infertility clinic. PATIENT(S):Three hundred sixty-five infertile patients who underwent 1,138 ncIVF treatment cycles during 2008-2011. INTERVENTION(S):Drug-free ncIVF treatment. MAIN OUTCOME MEASURE(S):Rate of successfully retrieved, fertilized oocytes, cleaved embryos, and live births per scheduled oocyte retrieval. RESULT(S):In 61% of the cycles OR was scheduled before or just at the start of the LH surge (groups 1A-1B), whereas in the remaining cases it was scheduled after the surge had already started (groups 2-4). The proportion of cycles with successfully recovered (range, 71%-86%), inseminated (range, 61%-78%), fertilized oocytes (range, 47%-68%), cleaved embryos (range, 45%-66%), and live births (range, 4.1%-9.2%) was not significantly different among subgroups. CONCLUSION(S):In ncIVF treatment OR timing based on the occurrence of spontaneous LH surge is feasible, yielding acceptable oocyte recovery, fertilization, and embryo cleavage rates. This strategy combined with a rapid and low-risk OR procedure permits the management of a large ncIVF program on a 7-days-per-week basis within working hours.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Bodri D,Kawachiya S,Kondo M,Kato R,Matsumoto T

doi

10.1016/j.fertnstert.2014.01.016

subject

Has Abstract

pub_date

2014-04-01 00:00:00

pages

1001-7.e2

issue

4

eissn

0015-0282

issn

1556-5653

pii

S0015-0282(14)00047-8

journal_volume

101

pub_type

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