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INVESTIGATİON OF THE EFFECT OF PASSIVE UTERINE STRAIGHTENING WITH A FULL BLADDER IN COMBINATION WITH TRANSABDOMINAL ULTRASONOGRAPHY ON PREGNANCY RATES IN INTRAUTERINE INSEMINATION: A PROSPECTIVE COHORT STUDY

24. juni 2026 opdateret af: Mustafa YILMAZ, Firat University
In this prospective study, we aimed to compare the pregnancy outcomes of a classic blind IUI procedure with an empty bladder with a transabdominal ultrasound-guided IUI procedure where the cervicouterine angle was flattened by using a full bladder.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Intrauterine artificial insemination (IUI) is a procedure in which prepared sperm is placed into the uterine cavity via a catheter to help couples undergoing treatment for unexplained infertility to conceive. Many factors influence the success of IUI. In this prospective study, we aimed to compare the pregnancy outcomes of a classic blind IUI procedure with an empty bladder with a transabdominal ultrasound-guided IUI procedure where the cervicouterine angle was flattened by using a full bladder. This prospective study was conducted at the Firat University Infertility Clinic between 2021 and November 2022. The study included a total of 340 cases diagnosed with unexplained infertility who underwent gonadotropin induction and completed the study. Group 1 (n=169) = Group that underwent blind IUI with an empty bladder, Group 2 (n=171) = Group that underwent IUI with a full bladder under transabdominal ultrasound guidance. Demographic, laboratory, radiological, ovulation induction procedure, and pregnancy outcomes were compared between the two groups. When comparing the two groups, there were no significant differences in age, body mass index (BMI), basal hormone levels, total antral and dominant follicle count, total motile sperm count, and total gonadotropin dose. The amount of insemination fluid that overflowed from the uterine cavity was significantly greater in the full bladder group than in the empty bladder group. However, clinical pregnancy rates were similar in both groups. Performing the intrauterine insemination procedure with a full bladder under transabdominal ultrasound guidance does not positively affect clinical pregnancy rates, except in terms of ease of procedure.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

340

Kontakter og lokationer

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Studiesteder

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen

Tager imod sunde frivillige

N/A

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

This prospective, randomised, single-centre study was conducted at the Fırat University Department of Obstetrics and Gynaecology, infertility clinic in Elazığ, Turkey, between 01/06/2021 and 03/11/2022.

Beskrivelse

Inclusion criteria:

  1. The woman is aged between 18 and 39 inclusive.
  2. Cases with infertility lasting at least 12 months
  3. The presence of known medical indications for IUI.
  4. Cases with mild to moderate male factor infertility (cases with a total motile sperm count greater than 5 x 10⁶).
  5. Cases with ovulatory disorders
  6. Cases diagnosed with unexplained infertility
  7. Mixed infertility due to the known causes listed above.
  8. Patients who have started primary infertility treatment and those who have started secondary infertility treatment.
  9. Cases where ovarian stimulation was performed with gonadotropins.
  10. The ability to communicate with the couple verbally or in writing.

Exclusion criteria:

  1. Cases where unilateral or bilateral tubal passage is absent
  2. Cases with acute pelvic inflammatory disease
  3. Male partners who have fewer than 1 million motile sperm in semen analysis
  4. Endometriosis.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Empty bladder
In the full bladder group, patients were asked to fill their bladders by drinking water until they felt the need to urinate, thus passively flattening the uterus. Uterine flattening was determined by transabdominal ultrasonography when the angle was ≥120°.
Andet: filling bladder
filling and emptying the bladder
Full bladder
Patients undergoing blind IUI with an empty bladder were asked to empty their bladders by urinating prior to the procedure.
Andet: filling bladder
filling and emptying the bladder

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Clinical Pregnancy
Tidsramme: two weeks after IUI

Women were instructed to perform a blood pregnancy test two weeks after IUI and send the result to our infertility clinic.

If the result was positive, clinical pregnancy was confirmed by transvaginal ultrasound in the seventh week of amenorrhoea to verify the development of an appropriate intrauterine pregnancy.
two weeks after IUI

Samarbejdspartnere og efterforskere

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Sponsor

Firat University

Publikationer og nyttige links

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Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. juni 2021

Primær færdiggørelse (Faktiske)

3. november 2022

Studieafslutning (Faktiske)

3. november 2022

Datoer for studieregistrering

Først indsendt

24. juni 2026

Først indsendt, der opfyldte QC-kriterier

24. juni 2026

Først opslået (Faktiske)

30. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

30. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

24. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • 2021/07-16

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

If needed, the research supervisor can be contacted via email.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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