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Effect of Follicular Flushing in Patients With Mono-follicular Growth Undergoing In Vitro Fertilization

Follicular Flushing in Patients With Mono-follicular Growth

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03831542
Enrollment
71
Registered
2019-02-06
Start date
2019-02-19
Completion date
2019-05-06
Last updated
2019-05-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diminished Ovarian Reserve, Invitro Fertilization, Oocyte

Keywords

follicular flushing, double lumen needle

Brief summary

Retrieval of an oocyte from a follicle relies on the release of the cumulus-oocyte-complex (COC) from the follicular wall into the lumen, thereby allowing aspiration by a needle. Flushing the follicle with multiple aspirations from the same follicle is used as a means to increase the ratio of COC per aspirated follicle. Data showed that follicular flushing is not superior to direct aspiration either in normally responding patients or in poor responders undergoing in vitro fertilization (IVF). There is no data in the literature regarding the issue in patients with mono-follicular growth. Direct aspiration or repeatedly flushing the follicle for those with a single follicle will be investigated.

Detailed description

Oocyte retrieval procedure This study aims to evaluate the effect of follicular flushing during oocyte retrieval procedure in patients with only one follicle. Double lumen needle will be used and direct follicular aspiration without flushing will be performed for all patients. If an oocyte will be obtained, the patient will be assigned to group A. If not, at least 1 course of follicular flushing will be used until retrieval of an oocyte and the patient will be assigned to group B.

Interventions

BEHAVIORALdirect follicular aspiration

direct follicular aspiration

follicular flushing

Sponsors

Centrum Clinic IVF Center
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

* women aged 18-40 years * primary infertility * diminished ovarian reserve with single mature follicle on the day of oocyte retrieval

Exclusion criteria

* natural cycle IVF * presence of endometriosis/endometrioma(s) * Absence of cumulus oocyte complex following oocyte retrieval * Severe male factor infertility * Pre-implantation genetic screening cycles

Design outcomes

Primary

MeasureTime frameDescription
mature oocyteduring oocyte retrieval procedureConfirmation of cumulus oocyte complex (COC) after microscopic examination of follicular fluid by a senior embryologist for each patient.

Secondary

MeasureTime frameDescription
fertilization rate after micro-injection24 hours after microinjection procedureConfirmation of pronuclei formation on the following day of microinjection by a senior embryologist in each patient.
clinical pregnancy rate per embryo transferuntill 6 weeksConfirmation of fetal cardiac activity on 5th or 6th week of gestation by a senior obstetrician in each pregnancy case.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026