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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04099121
Other study ID # 6086
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date February 1, 2020
Est. completion date November 1, 2023

Study information

Verified date April 2024
Source Western University, Canada
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Symptoms of female pelvic floor dysfunction, such as incontinence and pelvic organ prolapse, can be alleviated by using pessaries, which are passive medical devices that are inserted in the vagina to support the pelvic organs. Currently, pessaries are fit through trial and error after manual examination, the accuracy of which depends on the physician's expertise level. The objective of this study is to evaluate the feasibility of using 3D translabial ultrasound imaging of the vagina at various distension volumes to predict the pessary size for successful fit. Ultrasound images will be obtained using commercially available 3D ultrasound probes (Philips, Netherlands), as well as a commercially available 2D ultrasound probe (Philips, Netherlands), which is linearly scanned to capture a 3D volume. The linear scanning will be performed by attaching the 2D probe to a motorized hand-held scanner, which is used to tilt and move the probe to acquire images. Please note that the hand-held scanner does not come in contact with the patient. To distend the vagina, a sterile bag is inserted in the vagina and gradually filled with water using a commercially available urodynamic system (Laborie, Canada) until the vaginal capacity is reached, without causing any discomfort to the patient. This image acquisition technique, previously reported in the literature, is referred to as 3D ultrasound vaginal manometry in this study. To achieve the objective of this project, 35 pelvic organ prolapse patients, who (i) are current pessary users, (ii) can perform self-care of the pessary, and (iii) can provide informed consent, will be invited to participate in the study. Patients will be asked to remove their pessary prior to ultrasound imaging. Then, 3D ultrasound vaginal manometry will be performed, using the technique described above. Ultrasound images will be analyzed once data acquisition is completed. The size of the pessary estimated from ultrasound images will be compared with the actual pessary size used by the patient.


Recruitment information / eligibility

Status Completed
Enrollment 24
Est. completion date November 1, 2023
Est. primary completion date September 5, 2023
Accepts healthy volunteers No
Gender Female
Age group N/A and older
Eligibility Inclusion Criteria: - Current pessary users (> 6 months) who have no pessary related complication, including discomfort, repeated vaginal bleeding, and pessary extrusion - Are able to provide informed consent - Can perform self-care, i.e. removing and inserting the pessary themselves - Are willing to remove their pessary 2 days before the ultrasound examination date. Exclusion Criteria: - Inability to give informed consent - Inability to communicate with the person performing the consent and the sonographer performing ultrasound scanning - History of pelvic radiation or surgery, (including hysterectomy) - Using pessaries other than ring, incontinence dish, donut, Shaatz, Marland, or Gellhorn. - Inability to perform the Valsalva maneuver or pelvic floor contraction - Restricted mobility that prevents them from ambulating to assess the comfort level of the pessary during the initial pessary fitting visit. - Lack of sensation at the pelvic floor. - Being pregnant at the time of the examination.

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Ultrasound Imaging
3D ultrasound of the pelvic floor and vaginal cavity will be obtained by using a commercial ultrasound system.

Locations

Country Name City State
Canada Victoria Hospital London Ontario

Sponsors (2)

Lead Sponsor Collaborator
Western University, Canada Cosm Medical Corp.

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Primary FEASIBILITY: The predicted pessary size The predicted pessary size in cubic mm will be compared with the actual size of the pessary used by the patient Up to 3 months following data collection
Primary FEASIBILITY: The predicted pessary shape The predicted pessary shape will be compared with the actual shape of the pessary used by the patient by calculating the DICE coefficient. Up to 3 months following data collection
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