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Retained Products of ConceptionNCT07875985

Predictors of Successful Office Operative Hysteroscopy Using a Mini-Resectoscope

An observational study of Retained Products of Conception and Hysteroscopy, run by Shaare Zedek Medical Center at 1 site in Israel.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The goal of this observational study is to identify predictors of successful removal of benign intrauterine pathology using a mini-resectoscope during office operative hysteroscopy without anesthesia in adult women with suspected or diagnosed endometrial polyps or retained products of conception up to 2.5 cm in size. Read more about this study

Who is it for?
Ages 18 years and older, women only
What is being tested?
Office Operative Hysteroscopy Using the Karl Storz Mini-Resectoscope Without Anesthesia
Type of treatment
Medical device
How many people
50 participants
Where
1 siteIsrael
Study dates
1 Oct 2026to 1 Dec 2027
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Study population: Adult women presenting to the hysteroscopy clinic within the Gynecology Department at Shaare Zedek Medical Center who are referred for evaluation and management of suspected or confirmed benign intrauterine pathology. Patients are evaluated in an outpatient hysteroscopy setting and may be offered office operative hysteroscopy using a mini-resectoscope as part of routine clinical care when considered appropriate by the treating hysteroscopist

Who may be able to join

  • Female participants aged 18 years or older
  • Suspected or confirmed endometrial polyp or retained products of conception identified by ultrasound
  • Intrauterine lesion measuring up to 2.5 cm in maximal diameter
  • Up to two endometrial polyps or retained products of conception lesions within the uterine cavity
  • Considered suitable candidates for office operative hysteroscopy without anesthesia by the treating physician
  • Willingness to undergo hysteroscopic treatment without anesthesia
  • Ability to provide informed consent

Who cannot join

  • Patients with medical, psychological, or personal conditions requiring operative hysteroscopy in an operating room under general anesthesia Known cervical stenosis
  • Prior failure of office operative hysteroscopy without anesthesia Refusal or lack of willingness to undergo the procedure without anesthesia
  • Refusal or lack of willingness to participate in the study
  • Known diagnosis of endometrial malignancy

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Noam Smorgick, MD contact

+97226555562

noamsm@szmc.org.il

Israel1 site
  • Department of Gynecology, Shaare Zedek Medical Center

    Jerusalem

    Ayala Hirsch, Doctor, +97226555562, Ayala46@gmail.com

Other trials in Israel

About this study

Official title: Predictors of Successful Removal of Benign Intrauterine Pathologies Using a Mini-Resectoscope During Office Operative Hysteroscopy Without Anesthesia: A Prospective Observational Study

The goal of this observational study is to identify predictors of successful removal of benign intrauterine pathology using a mini-resectoscope during office operative hysteroscopy without anesthesia in adult women with suspected or diagnosed endometrial polyps or retained products of conception up to 2.5 cm in size.

The main questions it aims to answer are:

Read more
  • Which demographic, gynecologic, clinical, and hysteroscopic factors are associated with successful completion of office operative hysteroscopy using a mini-resectoscope without anesthesia?
  • Which factors are associated with severe pain during the procedure, defined as a Visual Analog Scale (VAS) score greater than 7?
  • Is prolonged procedure duration (>3 minutes) associated with higher intraoperative pain scores?
  • Are there differences in success rates between procedures performed for endometrial polyps versus retained products of conception?

Participants will:

  • Undergo office operative hysteroscopy without anesthesia using the Miniresectoscope device for removal of endometrial polyps or retained products of conception.
  • Provide demographic, obstetric, gynecologic, and medical history information before the procedure.
  • Have intraoperative hysteroscopic and surgical characteristics recorded, including cervical stenosis, uterine orientation, lesion size and location, lesion morphology, and procedure duration.
  • Complete pain assessments using the Visual Analog Scale (VAS) during the procedure and 5 minutes after the procedure.
  • Be evaluated for procedural success, defined as complete removal of the intrauterine pathology.
Read the detailed description

Office hysteroscopy has significantly evolved over the last decade with the development of smaller operative hysteroscopic systems that allow treatment of intrauterine pathology without cervical dilation, sedation, or general anesthesia. These advances support the transition from conventional operating-room hysteroscopy toward office-based "see-and-treat" procedures.

Despite increasing adoption of office operative hysteroscopy, patient selection remains insufficiently standardized. While many patients tolerate office procedures well, a subset experience severe pain, inability to complete the procedure, or technical difficulties related to cervical access, lesion characteristics, or prolonged operative duration. Current literature provides limited data regarding predictors of procedural success and patient tolerability, particularly in procedures performed using mini-resectoscope technology.

The mini-resectoscope system used in this study was designed specifically for office operative hysteroscopy and combines a reduced outer diameter with the ability to perform electrosurgical resection of intrauterine pathology. Compared with conventional resectoscopes, the smaller caliber may reduce the need for cervical dilation and improve feasibility in outpatient settings. However, evidence regarding optimal patient selection for this technology remains limited.

The present study focuses on women with suspected or confirmed benign intrauterine pathology, specifically endometrial polyps and retained products of conception measuring up to 2.5 cm. These lesions are among the most common indications for operative hysteroscopy and are frequently encountered in outpatient hysteroscopy clinics.

A major objective of the study is to identify demographic, gynecologic, clinical, and hysteroscopic characteristics associated with successful completion of office operative hysteroscopy without anesthesia. Variables evaluated in the study were selected based on previously suggested associations with procedural difficulty or pain perception. These include parity, menopausal status, prior cervical procedures, history of cesarean delivery, prior hysteroscopic interventions, uterine orientation, cervical stenosis, lesion morphology, lesion vascularity, and operative duration.

Pain assessment is an important component of the study because procedural pain remains one of the primary limitations of office operative hysteroscopy. Pain severity will be assessed using the Visual Analog Scale (VAS), a validated and widely used instrument for procedural pain evaluation. Both intraoperative pain and early postoperative pain will be recorded to better characterize immediate patient tolerability.

The study is designed as a prospective observational single-arm investigation performed in a dedicated outpatient hysteroscopy clinic. All procedures will be performed by experienced hysteroscopists using a standardized office-based approach without anesthesia. Procedure completion, technical difficulty, operative duration, and causes of incomplete procedures will be systematically documented.

The investigators hypothesize that successful office treatment can be achieved in the majority of appropriately selected patients, while severe pain will remain limited to a minority of cases. The study additionally aims to evaluate whether prolonged operative duration is associated with increased pain scores and whether pathology type influences procedural feasibility.

Identification of predictors associated with successful and well-tolerated office hysteroscopy may contribute to the development of evidence-based patient selection criteria for office operative hysteroscopy using mini-resectoscope systems. Improved selection algorithms may reduce unnecessary exposure to general anesthesia, improve patient counseling, optimize outpatient workflow, and support wider implementation of minimally invasive office-based hysteroscopic treatment strategies.

Being tested
Office Operative Hysteroscopy Using the Karl Storz Mini-Resectoscope Without Anesthesia
Keywords
hysteroscopy, Mini-resectoscope, see and treat, hysteroscopic polypectomy, Retained products of conception, Endometrial polyp, Visual Analog Scale
Medical subject headings
Abortion, Incomplete, Placenta, Retained

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Office Operative Hysteroscopy Using the Karl Storz Mini-Resectoscope Without AnesthesiaDevice

    Office operative hysteroscopy performed without anesthesia using the Karl Storz Mini-Resectoscope system (outer diameter approximately 5.5 mm) for hysteroscopic removal of benign intrauterine pathology, including endometrial polyps and retained products of conception up to 2.5 cm in size. Procedures are performed in an outpatient hysteroscopy clinic using a see-and-treat approach without routine cervical dilation, sedation, or general anesthesia. Intraoperative procedural characteristics, procedure duration, procedural completion, and patient-reported pain scores using the Visual Analog Scale (VAS) are prospectively recorded.

Study groups in NCT07875985
Study groupRoleWhat they receive
Office Operative Hysteroscopy With Mini-Resectoscope Without AnesthesiaAdult women with suspected or confirmed benign intrauterine pathology, including endometrial polyps or retained products of conception up to 2.5 cm in size, undergoing office operative hysteroscopy without anesthesia using a mini-resectoscope system. Participants will undergo hysteroscopic removal of the intrauterine pathology in an outpatient clinic setting and will complete pain assessment using the Visual Analog Scale (VAS) during and after the procedure. Demographic, gynecologic, clinical, hysteroscopic, and procedural variables will be prospectively collected to evaluate predictors of procedural success and pain severity
Receives: Device: Office Operative Hysteroscopy Using the Karl Storz Mini-Resectoscope Without Anesthesia

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Complete Removal of Intrauterine Pathology During Office Operative Hysteroscopy Using the Karl Storz Mini-Resectoscope Without Anesthesia

    Procedural success defined as complete hysteroscopic removal of the intrauterine pathology (endometrial polyp or retained products of conception) using the Karl Storz Mini-Resectoscope during office operative hysteroscopy without anesthesia.

    Measured: During the procedure

  2. Comparison of Rates of Incomplete Office Operative Hysteroscopy Using the Karl Storz Mini-Resectoscope According to Patient's Characteristics

    The rates of incomplete office operative hysteroscopy without anesthesia will be compared according to the patient's demographic, obstetric, gynecologic, and procedural characteristics, including age, body mass index (BMI), parity, prior vaginal deliveries, prior cesarean deliveries, menopausal status, previous hysteroscopic or gynecologic procedures, cervical stenosis, uterine orientation, lesion characteristics, and procedure duration. Reasons for procedural failure, including severe pain or discomfort, bleeding impairing visualization, technical difficulty, or incomplete lesion resection, will also be documented.

    Measured: During the procedure

Secondary outcomes (3)
  1. Intraoperative Visual Analog Scale (VAS) Pain Score During Office Operative Hysteroscopy

    Average Intraoperative Visual Analog Scale (VAS) Pain Score During Office Operative Hysteroscopy

    Measured: During the procedure

  2. Postoperative Pain Severity Assessed by Visual Analog Scale (VAS)

    Average patient-reported pain measured 5 minutes after completion of the hysteroscopic procedure using the Visual Analog Scale (VAS; range 0-10).

    Measured: 5 minutes after the procedure

  3. Procedure Duration

    Total operative time of office operative hysteroscopy using the mini-resectoscope, measured in minutes from insertion of the hysteroscope into the uterine cavity until completion of the procedure.

    Measured: During the procedure

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Oct 2026
  2. Study start1 Oct 2026 (estimated)
  3. Primary completion1 Nov 2027 (estimated)
  4. Study completion1 Dec 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
50 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07875985
Sponsor's protocol ID
0133-26-SZMC
Status last verified
Oct 2026
First submitted
5 Oct 2026
Last updated
15 Oct 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Retained Products of Conception and Hysteroscopy, run by Shaare Zedek Medical Center at 1 site in Israel.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 15 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Israel. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Noam Smorgick, MD (+97226555562, noamsm@szmc.org.il), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Complete Removal of Intrauterine Pathology During Office Operative Hysteroscopy Using the Karl Storz Mini-Resectoscope Without Anesthesia (time frame: During the procedure). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Oct 2026.

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