Reproductive · Pelvic Organ Prolapse
The facts most likely to be tested
Bladder prolapse, or cystocele, results from the weakening of the pubocervical fascia and levator ani muscles.
The most significant risk factor for the development of pelvic organ prolapse is vaginal childbirth due to pelvic floor trauma.
Patients typically present with a sensation of pelvic pressure, a bulging mass at the introitus, and urinary urgency or incomplete bladder emptying.
Physical examination reveals a bulge in the anterior vaginal wall that becomes more prominent with the Valsalva maneuver.
The POP-Q (Pelvic Organ Prolapse Quantification) system is the gold standard for staging the severity of prolapse.
First-line non-surgical management for symptomatic patients includes pelvic floor muscle training (Kegel exercises) and the use of a vaginal pessary.
Surgical intervention, such as anterior colporrhaphy, is reserved for patients who fail conservative therapy or have severe, symptomatic prolapse.
Vignette unlocked
A 68-year-old G3P3 woman presents to the clinic complaining of a persistent sensation of pelvic pressure and a feeling that 'something is falling out' of her vagina. She reports occasional urinary urgency and notes that she must manually push on the vaginal wall to fully empty her bladder. On physical examination, a soft, non-tender bulge is noted on the anterior vaginal wall. The bulge increases in size when the patient is asked to perform a Valsalva maneuver.
What is the most appropriate initial management for this patient?
Pelvic floor muscle training and vaginal pessary fitting
The patient's presentation of an anterior vaginal bulge that worsens with Valsalva is classic for a cystocele; initial management for symptomatic prolapse is conservative, focusing on pelvic floor exercises and pessary use.
Full handout
High yield triage
Etiology / Epidemiology
Caused by pelvic floor muscle weakness and connective tissue defects; primary risk factors include multiparity, vaginal delivery, and advanced age.
Clinical Manifestations
Patients report a pelvic pressure sensation and a vaginal bulge; symptoms often worsen with Valsalva maneuver or prolonged standing.
Diagnosis
Diagnosis is clinical via pelvic exam; POP-Q staging is the gold standard for quantifying the degree of prolapse.
Treatment
First-line for mild cases is Kegel exercises; symptomatic patients require a pessary or surgical repair (e.g., anterior colporrhaphy).
Prognosis
Recurrence is common; urinary retention and recurrent UTIs are the most significant clinical complications.
Full handout
Epidemiology & Etiology
Cystocele is the most common form of pelvic organ prolapse, frequently seen in postmenopausal women. Major risk factors include chronic increased intra-abdominal pressure (e.g., chronic cough, obesity) and iatrogenic injury during childbirth. Genetic predisposition to collagen deficiency also plays a significant role.
Pertinent Anatomy
The bladder is supported by the pubocervical fascia and the levator ani muscle complex. Failure of these structures allows the bladder to herniate into the anterior vaginal wall. The urethrovesical junction is often hypermobile in these patients.
Pathophysiology
Loss of structural integrity in the endopelvic fascia leads to the descent of the bladder base. This creates a cystocele, which may alter the bladder neck angle. Chronic strain causes progressive stretching of the supportive ligaments, eventually leading to the protrusion of the bladder into the vaginal introitus.
Clinical Manifestations
Patients typically present with a sensation of fullness or a vaginal bulge. Classic symptoms include stress urinary incontinence, incomplete bladder emptying, and the need for splinting (manual pressure) to void. Red flags include hematuria or sudden onset of severe pelvic pain, which may suggest alternative pathology.
Diagnosis
The pelvic examination is performed with the patient in the lithotomy position, often using a Sims speculum to visualize the anterior wall. The POP-Q (Pelvic Organ Prolapse Quantification) system is the gold standard for objective staging. A post-void residual (PVR) volume should be measured to assess for urinary retention.
Treatment
Conservative management includes pelvic floor muscle training (Kegel exercises) and weight loss. A vaginal pessary is the first-line non-surgical intervention for symptomatic relief. Surgical options include anterior colporrhaphy to reinforce the pubocervical fascia. Contraindications for surgery include patients who are not medically fit for anesthesia or those desiring future pregnancy.
Prognosis
While many patients remain asymptomatic, progression can lead to obstructive voiding symptoms. Recurrent UTIs are a frequent complication due to incomplete bladder emptying. Long-term monitoring is required to assess for worsening prolapse or the development of secondary stress incontinence.
Differential Diagnosis
Rectocele: posterior vaginal wall protrusion
Enterocele: small bowel protrusion into the vaginal vault
Uterine prolapse: descent of the cervix/uterus
Urethral diverticulum: localized tender mass under the urethra
Vaginal cyst: usually asymptomatic, non-reducible mass