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Cervical Priming With Misoprostol Prior to Operative Hysteroscopy

This study has been completed.
Information provided by:
Samsung Medical Center Identifier:
First received: November 12, 2009
Last updated: November 30, 2009
Last verified: July 2009

The primary outcome measure in this study was the preoperative cervical width after misoprostol administration. The secondary outcomes were duration of cervical dilatation, up to Hegar number 10, complications during cervical dilation and the hysteroscopy, and misoprostol associated side effects. The cervical width was assessed by performing cervical dilatation, starting with a number 10 Hegar dilator and subsequently inserting smaller Hegar dilatators until the dilator could pass through the internal os without resistance. The largest one that could be passed was recorded as the initial cervical width.

The mean cervical diameter, after oral and vaginal misoprostol of 400 μg, has been reported to be 6.0 ± 1.5 mm and 7.3 ± 1.6 mm, respectively 4. The investigators hypothesized that equivalence was of clinical significance if the difference in the initial cervical width was less than 1 mm among groups with the standard deviation of the initial cervical width of 1.6 mm. The estimated sample size was 47 patients in each group; this would be able to detect an equivalent effect in the groups with a power of 80% and a type 1 error (a) of 0.017. Data are expressed as the mean ± SD (standard deviation) or median with range or as the number (%) of cases.

Condition Intervention Phase
Cervical Ripening
Drug: Misoprostol
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Masking: Single Blind (Care Provider)
Official Title: Cervical Priming With Misoprostol Prior to Operative Hysteroscopy

Resource links provided by NLM:

Further study details as provided by Samsung Medical Center:

Primary Outcome Measures:
  • The primary outcome measure in this study was the preoperative cervical width after misoprostol administration. [ Time Frame: 1 year ]

Secondary Outcome Measures:
  • Duration of cervical dilatation, up to Hegar number 10. [ Time Frame: 1 year ]
  • Complications during cervical dilation. [ Time Frame: 1 year ]
  • Misoprostol associated side effects. [ Time Frame: 1 year ]
  • Complications during the hysteroscopy. [ Time Frame: 1 ]

Enrollment: 141
Study Start Date: July 2008
Study Completion Date: July 2009
Primary Completion Date: July 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: sublingual, oral and vaginal administration of misoprostol Drug: Misoprostol


Ages Eligible for Study:   20 Years to 55 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Symptomatic patients that were suspected as having intrauterine pathology such as submucosal myoma, endometrial polyps or other endometrial pathological findings based on the transvaginal ultrasound were enrolled.
  • women who are more than 20 years of age with having sexual contact history
  • women whose last menstrual period are within the last two months.

Exclusion Criteria:

  • Post menopausal women
  • any evidence of a contraindication or allergy to PGs
  • any sign of genital infection, history of cervical surgery, endometrial lesions with suspected endo- or exocervical lesions that could affect the cervical resistance or patients that were not candidates for surgery.
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Please refer to this study by its identifier: NCT01024270

Korea, Republic of
Samsung Medical Center
Seoul, Korea, Republic of, 135-710
Sponsors and Collaborators
Samsung Medical Center
Principal Investigator: Duk Soo Bae, M.D. Samsung Medical Center
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Duk Soo Bae/Chairman of Dept. of Ob. & Gyn, Samsung Medical Center Identifier: NCT01024270     History of Changes
Other Study ID Numbers: 2008-06-035
Study First Received: November 12, 2009
Last Updated: November 30, 2009

Keywords provided by Samsung Medical Center:
endometrial pathology of uterus
operative hysteroscopy
efficacy of misoprostol per different routes

Additional relevant MeSH terms:
Abortifacient Agents, Nonsteroidal
Abortifacient Agents
Reproductive Control Agents
Physiological Effects of Drugs
Anti-Ulcer Agents
Gastrointestinal Agents
Oxytocics processed this record on May 25, 2017