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Evaluation of Rectal Infiltration Depth and Length in Bowel Involvement of Deep Infiltrative Endometriosis (DIE) Using Intraoperative Transrectal Ultrasound (TRUS)

Evaluation of Rectal Infiltration Depth and Length in Bowel Involvement of Deep Infiltrative Endometriosis (DIE) Using Intraoperative Transrectal Ultrasound (TRUS)

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06776536
Acronym
DIE IO TRUS
Enrollment
15
Registered
2025-01-15
Start date
2025-01-07
Completion date
2026-04-07
Last updated
2025-01-15

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

Conditions

Bowel Endometriosis, Bowel Resection, Deep Infiltrating Endometriosis (DIE), Transrectal Ultrasound

Keywords

Deeply infiltrating endometriosis, bowel endometriosis, transrectal ultrasound, bowel resection

Brief summary

we aim to evaluate the success of intraoperative transrectal ultrasound in measuring the depth and extent of bowel involvement in patients preoperatively diagnosed with intestinal endometriosis using transvaginal ultrasound and MRI, and who are planned for bowel resection

Detailed description

This is a prospective, single-arm study aimed at evaluating the efficacy of intraoperative transrectal ultrasound (TRUS) in assessing rectal infiltration depth and length in patients with bowel involvement due to deep infiltrative endometriosis (DIE). The study will include 15-40 female patients aged 18-55, diagnosed with intestinal endometriosis preoperatively using transvaginal ultrasound and MRI, and scheduled for bowel resection. Preoperative evaluations will include pelvic examination, imaging (TVUS and MRI), and pain assessment using a visual analog scale (VAS). During surgery, TRUS will be used to measure the depth and length of rectal involvement, and findings will be compared with preoperative MRI results. Data will be analyzed using statistical methods, including sensitivity, specificity, and ROC curve analysis, to determine the diagnostic performance of TRUS. The study will be conducted at Istanbul Başakşehir Çam and Sakura City Hospital, with multidisciplinary contributions from gynecology, radiology, and general surgery teams.

Interventions

DIAGNOSTIC_TESTTransrectal ultrasound of the bowel endometriosis during operation

This is a prospective, single-arm study aimed at evaluating the efficacy of intraoperative transrectal ultrasound (TRUS) in assessing rectal infiltration depth and length in patients with bowel involvement due to deep infiltrative endometriosis (DIE). The study will include 15-40 female patients aged 18-55, diagnosed with intestinal endometriosis preoperatively using transvaginal ultrasound and MRI, and scheduled for bowel resection. Preoperative evaluations will include pelvic examination, imaging (TVUS and MRI), and pain assessment using a visual analog scale (VAS). During surgery, TRUS will be used to measure the depth and length of rectal involvement, and findings will be compared with preoperative MRI results.

Sponsors

Başakşehir Çam & Sakura City Hospital
Lead SponsorOTHER_GOV

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Masking description

The radiologist (A) interpreting the preoperative MRI and the radiologist (B) performing the intraoperative TRUS will be different individuals. The radiologist performing the TRUS will be blinded to the patient's clinical information and MRI findings.

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

* The study will include a minimum of 15 female patients aged 18-55 with bowel involvement due to deep infiltrative endometriosis, requiring bowel resection.

Exclusion criteria

Patients with bowel endometriosis who does not require bowel resection, patients who have other bowel diseases, such as rectal tumors, Crohn's disease, or ulcerative colitis, will be excluded. \-

Design outcomes

Primary

MeasureTime frameDescription
Intraoperative transrectal ultrasound of the rectal involvement of the deep infiltrating endometriosis will be compared with preoperative MRIFrom enrollment to the 16 monthsPatients diagnosed with rectal endometriosis and planned for bowel resection will undergo intraoperative transrectal ultrasound during laparoscopy. The transrectal ultrasound will be performed by a blinded radiologist, and the location, depth, and length of rectal involvement in DIE will be measured in millimeters using TRUS. These findings will be recorded. The results will be compared with preoperative MRI results which was performed by another radiologist for this study.

Secondary

MeasureTime frameDescription
Demographic informations, patient characteristics, disease related pain scores, surgical informationsFrom enrollment to 16 months.Patient demographic information, including age, BMI, known comorbidities, mode and number of deliveries, previous surgeries, and preoperative medical treatments, will be collected. Pain characteristics and visual analog score (VAS) scores for dysmenorrhea, dyspareunia, dysuria, dyschezia, and chronic pelvic pain will be retrieved from the hospital records or patient files. Surgical parameters, such as the type and duration of surgery will be recorded. Early postoperative complications will be recorded.

Countries

Turkey (Türkiye)

Contacts

Primary ContactBaris Kaya, Associate Professor
mdbariskaya@gmail.com+905323469156
Backup ContactSercan Yuksel, Associate Professor
drsercanyuksel@gmail.com+905057001666

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026