Levator ani muscle avulsion: a risk factor for persistent postpartum voiding dysfunction

Area of Science:

• Urogynecology
• Obstetrics
• Pelvic Floor Disorders

Background:

• Persistent postpartum voiding dysfunction (P-PPVD) affects bladder emptying for over 72 hours after delivery.
• Understanding risk factors and long-term outcomes is essential for clinical management.

Purpose of the Study:

• Identify predictive factors for P-PPVD.
• Compare urogynecologic outcomes of P-PPVD with transient postpartum voiding dysfunction (PPVD).

Main Methods:

• A case-control study compared women with P-PPVD to those with transient PPVD.
• Ultrasound assessment of the levator ani muscle (LAM) was performed.
• Follow-up at 12 weeks and 12 months postpartum included urogynecologic symptom evaluation.

Main Results:

• Levator ani muscle (LAM) avulsion was the sole independent risk factor for P-PPVD (OR 6.3).
• No significant differences in most urogynecologic symptoms were observed between transient and persistent PPVD groups.
• Women with P-PPVD showed a lower prevalence of urinary incontinence at 12 weeks postpartum.

Conclusions:

• Postpartum voiding dysfunction (PPVD) is common but usually self-limited, with 17.3% persisting beyond 3 days.
• Levator ani muscle avulsion is an independent risk factor for persistent postpartum voiding dysfunction (P-PPVD).
• Early diagnosis and management of P-PPVD can mitigate long-term urogynecologic complications.