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Operative Hysteroscopic Using a Tissue Removal Device for Surgical Management of Early Pregnancy Loss Without Anesthesia - A Pilot Study

4 november 2026 bijgewerkt door: Noam Smorgick Rosenba, Shaare Zedek Medical Center

This small pilot study will assess whether early pregnancy loss (miscarriage) can be treated in an outpatient clinic using hysteroscopy without anesthesia, how well patients tolerate the procedure, and what complications occur. Hysteroscopy uses a small-diameter instrument with a camera to see inside the womb (uterus). A tissue removal device allows the doctor to remove pregnancy tissue while watching it directly.

The study will enroll 20 patients with pregnancy loss at up to 8 weeks of pregnancy who have chosen surgical treatment over medical treatment or expectant management. All participants will receive the study procedure; there is no comparison group. Researchers will record whether the pregnancy tissue is completely removed, pain during and shortly after the procedure, procedure duration, and complications. If the procedure cannot be completed or a participant asks to stop because of discomfort, an alternative procedure using suction aspiration (i.e., the traditional procedure for surgical abortion) will be offered the same day under sedation.

Participants will be invited to a follow-up visit 4-6 weeks later. This visit will include an ultrasound scan and diagnostic hysteroscopy to check for remaining pregnancy tissue or scar tissue inside the womb. The findings will provide an initial assessment of this approach and help guide future research.

Studie Overzicht

Toestand

Nog niet aan het werven

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

This prospective, single-arm, non-blinded pilot study will evaluate the feasibility, patient tolerability, and safety of office-based operative hysteroscopy using a tissue removal device for surgical management of early pregnancy loss without anesthesia. The study will enroll 20 participants at Shaare Zedek Medical Center. There will be no comparison group.

Hysteroscopy allows direct visualization of the uterine cavity and targeted removal of pregnancy tissue. This study will assess whether this approach can be completed in an outpatient setting without anesthesia and will provide preliminary information on procedural success, pain, and complications.

Patients presenting to the gynecological emergency department with early pregnancy loss who have chosen surgical management will be offered participation. Eligible participants must be older than 18 years, have a gestational age of up to 8 weeks calculated from the first day of the last menstrual period, and have a gestational sac measuring less than 20 mm in diameter on pelvic ultrasound. Participants must be able to provide informed consent and read and write Hebrew. Patients with heavy vaginal bleeding, incomplete miscarriage, signs of infection or suspected septic miscarriage, previous medical or surgical treatment during the current pregnancy, or a history of intrauterine adhesions will be excluded.

Following clinical and ultrasound assessment and written informed consent, the study procedure will be scheduled within one week of the initial emergency department assessment. Experienced hysteroscopic surgeons will perform the procedure in the outpatient hysteroscopy suite without anesthesia. Participants will also provide separate informed consent for operative hysteroscopy. At the surgeon's discretion, selected participants may receive misoprostol for cervical preparation, as specified in the protocol.

Pregnancy tissue will be removed under direct hysteroscopic visualization using the mini-Elite TruClear tissue removal system with the mini-soft-tissue shaver. Normal saline will be used to distend the uterine cavity. Removed tissue will be submitted for pathological examination. Procedure duration, estimated blood loss, fluid deficit, and intraoperative complications will be recorded. Maximum pain during the procedure will be assessed using a 10-cm visual analogue scale.

Procedural success will be defined as complete hysteroscopic removal of pregnancy tissue while the participant remains comfortable. Incomplete removal because of limited visibility or termination at the participant's request because of discomfort will be classified as an unsuccessful procedure. These participants will be offered standard vacuum aspiration under sedation in the operating room or manual vacuum aspiration without anesthesia in the clinic. The chosen alternative procedure will be completed the same day.

After the procedure, participants will be observed in the clinic recovery room for 30 minutes. Vital signs and postoperative bleeding will be assessed, and pain will be measured 5 minutes after the procedure using the same visual analogue scale. Oral analgesia will be offered and administered on request, and its use will be documented. Participants who remain clinically well after observation will be discharged home.

All participants will be invited to a follow-up visit 4-6 weeks after the procedure. Follow-up will include assessment of postoperative adverse events, including excessive pain, excessive bleeding, fever, urgent medical consultations, and emergency department visits. Office hysteroscopy and transvaginal pelvic ultrasound will be performed to assess for intrauterine adhesions and retained pregnancy tissue. Abnormal findings will be documented, and further management will be recommended according to standard clinical criteria.

Study outcomes will include the proportions of successful and unsuccessful procedures, procedure duration, intraoperative and postoperative complications, the proportion of participants with a pain score greater than 6 during or after the procedure, and the rates of intrauterine adhesions and retained pregnancy tissue at follow-up. Intraoperative complications assessed will include uterine perforation, estimated blood loss greater than 250 mL, and fluid deficit greater than 2,500 mL. Postoperative complications assessed will include fever, vaginal bleeding requiring a repeat procedure, and readmission within one month.

No formal sample size calculation is planned because this is an exploratory pilot study. The sample of 20 participants is intended to provide an initial assessment of feasibility, tolerability, and observed complications rather than to test a definitive efficacy hypothesis. Findings will be interpreted in light of the small sample size, particularly its limited ability to assess uncommon adverse events.

Studietype

Ingrijpend

Inschrijving (Geschat)

20

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Vrouw

Beschrijving

Inclusion Criteria:

  • Gestational age up to 8 weeks of gestation (calculated from the first day of the last menstrual period) and a gestational sac measuring < 20 mm in diameter on pelvic ultrasound.
  • Age > 18 years
  • Patients able to provide informed consent and to read/write Hebrew

Exclusion Criteria:

  • Heavy vaginal bleeding or diagnosis of incomplete miscarriage (incomplete abortion)
  • Signs of infection and/or suspected septic abortion
  • Previous medical or surgical treatment in the current pregnancy
  • History of intrauterine adhesions

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: NVT
  • Interventioneel model: Opdracht voor een enkele groep
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Operative Hysteroscopy

Surgical evacuation by office operative hysteroscopy

Use of operative hysteroscopy (Mini-elite Truclear) in the office etting for removal of early pregnancy loss for

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Procedural success
Tijdsspanne: 1 day

Proportions of successful and unsuccessful procedures

1 day

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Procedure time
Tijdsspanne: 1 day

Measurement of duration of the procedures in minutes

1 day
Intraoperative pain
Tijdsspanne: During the procedure

Maximal pain measured by 10 cm VAS

During the procedure
Postoperative pain
Tijdsspanne: 5 minutes after the procedure

Maximal pain measured by 10 cm VAS

5 minutes after the procedure

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

15 december 2026

Primaire voltooiing (Geschat)

15 december 2027

Studie voltooiing (Geschat)

15 december 2028

Studieregistratiedata

Eerst ingediend

4 november 2026

Eerst ingediend dat voldeed aan de QC-criteria

4 november 2026

Eerst geplaatst (Werkelijk)

10 november 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

10 november 2026

Laatste update ingediend die voldeed aan QC-criteria

4 november 2026

Laatst geverifieerd

1 november 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Andere studie-ID-nummers

  • 0421-26-SZMC

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

ONBESLIST

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

product vervaardigd in en geëxporteerd uit de V.S.

Nee

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