Clinical Research Directory

Single-Layer Versus Double-Layer Uterine Closure After Primary Cesarean Section

This study compares two surgical techniques for closing the uterus after cesarean section: single-layer versus double-layer closure. The primary objective is to determine which technique results in better uterine scar healing, measured by residual myometrial thickness (RMT) and cesarean scar defect (niche) prevalence at 6 weeks and 6 months postoperatively. BACKGROUND: Cesarean section is one of the most common surgeries worldwide. After fetal delivery, the uterine incision must be closed by suture. Poor scar healing can lead to niche formation, abnormal bleeding, pelvic pain, dyspareunia, and complications in future pregnancies including uterine rupture and placenta accreta. INTERVENTION: Participants are randomized 1:1 to receive either: * Single-layer closure: one continuous non-locking suture through full myometrial thickness * Double-layer closure: two successive extra-mucosal non-locking sutures excluding the decidua ASSESSMENTS: Transvaginal ultrasound at 6 weeks and 6 months measures RMT and niche presence. Standardized symptom questionnaires assess pelvic pain, spotting, dysmenorrhea, and dyspareunia. ELIGIBILITY: Women aged 18-45 years undergoing primary cesarean section with singleton pregnancy at term (gestational age ≥ 37 weeks). ENROLLMENT: 384 participants (192 per group) SETTING: Department of Obstetrics and Gynecology, Hedi Chaker University Hospital, Sfax, Tunisia FOLLOW-UP: 6 months per participant in which the patients attend 2 follow-up visits: First visit 6 weeks after surgery. Second visit at 6 months after surgery .And have a pelvic ultrasound at each visit

Transdermal Ethinyl Estradiol and Norelgestromin for Irregular Bleeding in Contraceptive Implant Users

The goal of this clinical trial is to evaluate the effectiveness of transdermal contraceptive patches in treating irregular vaginal bleeding in women over 18 years old who are using contraceptive implants and experiencing abnormal vaginal bleeding. The main questions it aims to answer are: * Does transdermal ethinyl estradiol and norelgestromin patch effectively treat irregular vaginal bleeding caused by contraceptive implants compared to placebo? * What proportion of participants will report cessation of vaginal bleeding during treatment and remain bleeding-free at day 14 of treatment? * What is the safety profile and adherence rate of the transdermal patch treatment? Researchers will compare participants receiving active hormonal patches (ethinyl estradiol 600 mcg + norelgestromin 6 mg) to those receiving placebo patches to see if the hormonal treatment effectively stops irregular vaginal bleeding. Participants will: * Apply transdermal patches for 21 days (changing patch every 7 days - total of 3 patches) * Attend follow-up visits at days 7, 14, 21, and 3 months (day 14 in-person, others via telephone) * Complete bleeding diaries and report any side effects * Follow-up schedule: Day 7: Telephone follow-up to assess bleeding pattern, side effects, and patch adherence Day 14: In-person visit at the clinic for comprehensive evaluation including bleeding assessment, side effects monitoring, and adherence check Day 21: Telephone follow-up to evaluate treatment completion, ongoing bleeding status, and need for additional treatment 3 months: Final telephone follow-up to assess long-term outcomes and recurrence of bleeding

A Randomized Study Comparing Subtotal vs Total Hysterectomy Long Term Outcomes

The goal of this randomized clinical trial is to assess the outcomes of total laparoscopic hysterectomy vs subtotal laparoscopic hysterectomy + mini-laparotomy for uterine extraction for benign gynecological conditions in terms of change in quality of life at 36 months after surgery and patient's impression of improvement. The secondary objectives of the study are to assess any differences in terms of peri and postoperative outcomes (postoperative pain, blood loss, hospital stay, intraoperative or short and long-term postoperative complications, long term urinary, bowel and pelvic floor symptoms, prevalence of vaginal cuff dehiscence). Participants will fill the following questionnaires pre-operatively and at the follow up: * Short Form 36 (SF36), * Euro Quality of life 5D-3L (EQ 5D-3L) * Female Sexual Function Index (FSFI) * Patient Global Impression of Improvement (PGI-I) only during the follow-up period.