OMSB Obstetrics and Gynecology (OEOG) study materials
OMSB Obstetrics and Gynecology (OEOG) study resources

Stage 3 Pelvic Organ Prolapse With Occult Stress Incontinence

OMSB Obstetrics and Gynecology (OEOG) · Put your knowledge to work in context.

All case studies

Stage 3 Pelvic Organ Prolapse With Occult Stress Incontinence

66-year-old P4A0 presents with a vaginal bulge that worsens by evening, difficulty emptying her bladder, and two urinary tract infections in 6 months. She denies leakage. BMI 29; well-controlled hypothyroidism; no prior prolapse or incontinence surgery. POP-Q: anterior Ba +3, apical C -2, posterior Bp -2, total vaginal length 8 cm; stage 3 anterior/apical prolapse. Office reduction of the prolapse with a pessary reveals leakage of urine with cough, though she had not noticed it before. Urodynamics with prolapse reduced shows occult stress urinary incontinence, no detrusor overactivity, capacity 450 mL, and postvoid residual 120 mL. She is sexually active and wants a durable repair but is wary of mesh. She has completed a 3-month trial of pelvic floor exercises without improvement.

1. How do you interpret the occult stress incontinence, and what are the arguments for and against a concomitant anti-incontinence procedure at the time of prolapse repair?

Read the worked answer

Occult stress incontinence occurs when prolapse obstructs or kinks the urethra and masks leakage; reducing the prolapse unmasks it. This patient's positive cough stress test with reduction and urodynamic confirmation means that repairing the prolapse alone may leave her with bothersome postoperative stress incontinence. A concomitant midurethral sling reduces the risk of postoperative stress incontinence, but it also adds risks: bladder injury, urinary retention, tape erosion, dyspareunia, and mesh-related complications. Because she is mesh-averse and sexually active, the discussion must be explicit. A retropubic or transobturator synthetic sling is the usual concomitant procedure; autologous fascia or a bulking agent are alternatives but have different durability. The decision is preference-sensitive. I would explain that treating only the prolapse may unmask leakage, while adding a sling lowers that risk but may cause new voiding symptoms. Her postvoid residual of 120 mL also warrants postoperative voiding assessment.

2. Compare vaginal and abdominal apical suspension options for a sexually active woman with stage 3 prolapse, including mesh considerations.

Read the worked answer

The apical defect must be addressed; anterior repair alone has a high recurrence rate. Vaginal options include uterosacral ligament suspension and sacrospinous ligament fixation, often with anterior colporrhaphy and possible hysterectomy. These avoid abdominal mesh and allow a vaginal approach, but sacrospinous fixation can cause buttock pain and dyspareunia, and uterosacral suspension risks ureteral kinking. Abdominal sacrocolpopexy, usually laparoscopic or robotic, uses a synthetic mesh bridge from the vagina to the sacral promontory and has durable outcomes, especially for apical and anterior prolapse. It carries mesh erosion, bowel injury, and longer recovery risks, and it requires a skilled surgeon. For a sexually active woman wary of mesh, shared decision-making is essential: native-tissue vaginal repair is reasonable, particularly if the anterior and apical defects are moderate, while sacrocolpopexy offers better long-term durability. Uterine preservation can be discussed if the uterus is normal, but hysterectomy may simplify the repair.

3. What preoperative counseling and postoperative milestones would you set to reduce recurrence and voiding dysfunction?

Read the worked answer

Preoperative counseling should cover recurrence rates, the possibility of a staged or combined anti-incontinence procedure, mesh risks if used, and the need for postoperative pelvic rest. Modifiable factors include weight management, treating constipation, avoiding heavy lifting, and smoking cessation. Vaginal estrogen should be considered to improve tissue quality. Postoperatively, the patient needs a structured voiding trial; because her preoperative residual is 120 mL, she is at higher risk of retention, especially if a sling is placed. Teach clean intermittent self-catheterization before discharge. Set milestones: adequate voiding with residual below 150 mL, no urinary tract infection, pain control without constipation, and gradual return to activity with a lifting restriction for 6 weeks. At follow-up, assess mesh exposure if applicable, sexual function, and recurrent prolapse. Give her a pessary as a backup option, and document shared decision-making about the sling.