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Standardized Evaluation of Transobturator Mid-Urethral Sling Using Transrectal Biplane Ultrasound Combined with Cotton-Swab Marking of the External Urethral Meatus: An Interobserver Reproducibility and Clinical Application Study — A Cross-Sectional Study

Standardized Evaluation of Transobturator Mid-Urethral Sling Using Transrectal Biplane Ultrasound Combined with Cotton-Swab Marking of the External Urethral Meatus: An Interobserver Reproducibility and Clinical Application Study — A Cross-Sectional Study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600128852
Enrollment
Unknown
Registered
2026-07-27
Start date
2026-04-24
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post-Transobturator Mid-Urethral Sling Procedure for Female Stress Urinary Incontinence

Interventions

Urinary Leakage Group:None

Sponsors

Peking University Shenzhen Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1.Female patients diagnosed with stress urinary incontinence or mixed urinary incontinence who underwent transobturator mid-urethral sling surgery; 2.Postoperative transrectal biplane pelvic floor ultrasound examination performed at the Ultrasound Department of Peking University Shenzhen Hospital, with complete imaging data, including images at rest and during Valsalva maneuver, as well as baseline measurements; 3.Availability of complete clinical information in the electronic medical record system, including general patient data, surgical details, and postoperative follow-up of clinical symptoms (including urinary leakage);

Exclusion criteria

Exclusion criteria: 1.Ultrasound images of poor quality, with unclear visualization of key anatomical structures (urethra, sling, levator hiatus), preventing standardized parameter measurements; 2.Missing data in the electronic medical record or ultrasound examination, with key information (surgery date, postoperative urinary leakage, ultrasound measurements) unavailable for review; 3.History of other pelvic floor surgeries (e.g., pelvic floor reconstruction, bladder neck suspension) that may affect sling evaluation; 4.Presence of severe pelvic floor anatomical abnormalities, neurological disorders, malignancies, or significant hepatic or renal dysfunction, which may influence urinary incontinence symptoms or ultrasound assessment; 5.Insufficient postoperative follow-up, with incomplete clinical symptoms or ultrasound data;

Design outcomes

Primary

MeasureTime frame
Sling width (W), distance from the proximal margin of the sling to the internal urethral meatus (D-I), distance from the distal margin of the sling to the external urethral meatus at rest (D-O);distance from the distal margin of the sling to the external urethral meatus during Valsalva maneuver (V-D-O);

Secondary

MeasureTime frame
Levator hiatus area at rest and during Valsalva maneuver (LA-A, V-LA-A);

Countries

China

Contacts

Public ContactXiaokun Li

Peking University Shenzhen Hospital

804639566@qq.com+86 755 83923333

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Aug 10, 2026