Week 8 Flashcards
Pelvic Organ Prolapse
- Definition: Partial vs. Total?
- 3 Components of the endopelvic fascia?
- Layers of the pelvic floor?
Definition: herniation into or descent of pelvic organs to or beyond the vaginal walls
- Partial/subtotal prolapse: pelvic organs are only partially outside the vaginal opening.
- Total prolapse: pelvic organs are everted and located outside of the vaginal opening.
Anatomical overview: The pelvic floor is supported by a continuous endopelvic fascia, which consists of:
1. Uterosacral ligament complex (suspends the uterus and vaginal apex from the sacrum and lateral pelvis)
2. Paravaginal attachments
3. Perineal body, perineal membrane, and the perineal muscles
Pelvic Organ Prolapse
- 5 Specific Sites/Types?
Types of pelvic organ prolapse
1. Apical compartment prolapse (uterine prolapse, vaginal vault prolapse): herniated vaginal apex (uterus and cervix, cervix alone, or vaginal vault) into the lower vagina, hymen, or beyond the vaginal introitus.
2. Posterior compartment prolapse: herniated posterior vaginal segment, often associated with rectocele (descent of the rectum) or enterocele (herniated section of the intestines).
3. Anterior compartment prolapse: herniated anterior vaginal wall, which is often associated with a cystocele (descent of the bladder) or urethrocele (descent of the urethra)
Describe 12 risk factors associated with uterovaginal prolapse.
Aetiology: insufficiency of the pelvic floor muscles and the ligamentous supportive structure of the uterus and vagina.
- These include a network of levator muscles and ligaments (endopelvic fascia).
Describe the symptoms in relation to sexual function, bowel function and urinary function as they relate to uterovaginal prolapse.
- 5 Clinical Features?
Clinical features
1. Feeling of pressure on or discomfort around the perineum (“sensation of vaginal fullness”)
2. Lower back and pelvic pain (may become worse with prolonged standing or walking)
3. Rectal fullness, constipation, incomplete rectal emptying
4. Prolapse of the anterior (most common) or the posterior vaginal wall - Occurs at rest and with increased abdominal pressure. Possibly with excessive vaginal discharge on inspection, bimanual examination, and speculum examination of the patient in lithotomy position.
5. Weakened pelvic floor muscle and anal sphincter tone
Outline the Pelvic Organ Prolapse Quantification system?
POP is usually a clinical diagnosis that relies on the Pelvic Organ Prolapse Quantification system (POP-Q):
- Stage 0: no prolapse
- Stage 1: The most distal portion of prolapse is more than 1 cm above the level of the hymen.
- Stage 2: The most distal portion of prolapse is 1 cm or less proximal or distal to the hymenal plane.
- Stage 3: The most distal portion of prolapse is more than 1 cm from the hymenal plane but no more than 2 cm less than the vaginal length.
- Stage 4: The vagina is completely everted or uterine procidentia has occurred.
Explain in detail the investigations and examination of the patient with uterovaginal prolapse.
- 11 points?
Explain the broad conservative approach versus the broad surgical approach to uterovaginal prolapse.
Explain the following types of Urinary Incontinence:
- Stress Incontinence?
- Urge Incontinence (Overactive Bladder)?
- Overflow Incontinence / Voiding dysfunction?
- Continual Incontinence?
What questions will you ask a woman with urinary incontinence to distinguish between the 4 different types?
HISTORY - General
A woman presenting with a complaint of urinary incontinence requires careful examination. The social inconvenience caused by the incontinence should be evaluated. The woman should be asked if she is taking any medications, as some drugs may cause symptoms of urinary incontinence. General medical conditions, such as parkinsonism, Multiple sclerosis and diabetic neuropathy, must be looked for and excluded, as should local bladder causes, such as bladder stone or pressure on the bladder from a myoma.
What will you look for on examination of a woman presenting with urinary incontinence depending on the different types?
What 8 tests will you order for a woman presenting with urinary incontinence?
- What are Urodynamic Studies?
What tests to order
1. All patients presenting with a complaint of incontinence require Urinalysis and Culture.
2. Further investigations may be required to dispel doubt about the diagnosis or to exclude intravesical or kidney disorders; these include
3. Cystometry
4. Uroflowmetry
5. Cysto-urethroscopy
6. Micturating cystourogram
7. Intravenous Urogram
8. An assessment of post-micturition volume should be made, either by post-micturition ultrasound or catherterisation (>100mL is abnormal)
What will urodynamic studies look like for the different types of urinary incontinence?
What treatments are available for Stress Urinary Incontinence? How successful are they?
Stress Incontinence - Treatment Success
Physical therapy and medical treatment measures effectively relieve urinary sphincter incontinence in up to 60% of affected women. With surgical treatment, the available operations have similar success rates of over 90% in the immediate post-operative years, long term studies available, vary between 75% - 85% of women who are still continent 6-8 yrs after the operation, with 15-20% having detrussor instability.
What treatments are available for Urge Urinary Incontinence? How successful are they?
Urge Incontinence - Treatment Success
Bladder retraining programmes for urge incontinence have a success rate of 80-90% when used alone or along with anticholinergics and TCA. Adrenergic agents, such as phenylpropanolamine, are sometimes used with studies suggesting they are more effective than placebo, but a definitive treatment still appears to be lacking.
What treatments are available for Overflow / Voiding Dysfunction Incontinence?
Why do treatments for Urinary incontence fail?
- What are 6 Risk factors for possible sling failure?
- 4 Complications of Sling insertion for urinary incontinence?
- Treatment failures can arise from a number of problems, including technical problems with the sling placement, or from patient- oriented factors such as persistently high intra-abdominal pressures (obesity) or poor urethral tissue quality (radiation, aging). Technical problems with the surgery include sling laxity, poor sling placement (either proximal to the bladder neck or too distally near the meatus), or sling placement into the urethra, which can sometimes lead to simultaneous recurrent stress incontinence and obstructive/irritative symptoms.
- The first steps in management in the patient with treatment failure is a vaginal exam and cystoscopic evaluation to rule out a major complication (perforation or erosion) and urodynamic evaluation to objectively define the patient’s current voiding pattern as best as possible.
UTEROVAGINAL PROLAPSE
- Definition?
- Incidence?
- Types?
- Grading system?
Definition
- Prolapse - A protrusion of an organ or structure beyond its normal confines.
- Pelvic organ prolapse – one or more pelvic organs drop or prolapse into the vagina due to weakened muscles, ligaments and/or fascia, which fail to hold the organs in their correct positions.
Incidence
- Common; ~1 in 3 multiparous women
- Women’s Health Initiative findings: 41% of women aged 50 to 79 years had pelvic organ prolapse: cystocele (34%), rectocele (19%), and uterine prolapse (14%). Only 10% to 20% of women will seek help for their problem.
UTEROVAGINAL PROLAPSE
- Pathophysiology?
- 9 Risk factors?
Pathophysiology
- Predominantly a disorder of parous women whereby there is damage to the musculature, ligaments, and nerves.
- Decline of normal levator ani tone by direct muscle trauma or a denervation injury may occur during vaginal delivery, which results in an open urogenital hiatus and changes to the horizontal orientation of the levator plate, which causes a prolapse
- Endopelvic fascia – supports and connects pelvic organs to musculature and pelvic bones. Disruption or stretching of these connective tissue (CT) attachments happens during vaginal delivery or hysterectomy (by any route), as a consequence of chronic straining, altered CT metabolism or as part of normal ageing.
UTEROVAGINAL PROLAPSE
- What to elicit on history?
UTEROVAGINAL PROLAPSE
- Physical Examination?
UTEROVAGINAL PROLAPSE - Treatment
- Conservative?
- Surgical?
Treatment
- Depends on severity of symptoms
- If asymptomatic – pelvic floor exercise + monitor
List 7 Complications of Surgical treatment of Uterovaginal prolapse?
Why do they fail?
Complications
1. Dyspareunia after posterior repair
2. Post-repair urinary incontinence
3. Faecal incontinence after posterior repair
4. Vaginal erosion
5. Urinary retention
6. Post-repair recurrent prolapse
7. Mesh erosion
A 75 year old woman with a minor degree of cystocoele gives a confusing history of recurrent urinary incontinence, sometimes associated with coughing and laughing but often because she “can’t make it to the lavatory in time”. How would you differentiate the major mechanism of her symptom? Consider history, examination and special tests. How would you manage her? What are the major treatment options?
The 75-year-old woman’s urinary symptoms are suggestive of both stress urinary incontinence and urgency urinary incontinence. To differentiate between these mechanisms and formulate an appropriate management plan, a thorough assessment including history, examination, and special tests would be necessary.
Differentiating Mechanism:
To differentiate between SUI and UUI, the patient’s history can provide clues:
- If the leakage occurs mainly during activities that increase intra-abdominal pressure (coughing, laughing), it’s likely stress urinary incontinence.
- If the leakage is associated with a strong, sudden urge to urinate and occurs even when the bladder isn’t full, it’s likely urgency urinary incontinence.
A 56 year old woman whose menopause occurred at 50 years and who has not received oestrogen therapy has noted urinary urgency becoming progressively worse over the last year. How should she be investigated (5) and treated? (8)
The 56-year-old woman’s symptoms of worsening urinary urgency could be indicative of urgency urinary incontinence (UUI) or overactive bladder (OAB). Given her age and the onset of symptoms after menopause, hormonal changes and the potential impact on the pelvic floor muscles should also be considered.
A 70 year old woman has recently been commenced on medication for her hypertension. She has had urinary incontinence since then. What 6 groups of drugs are associated with altered urinary function? What can be done to help her? (5 management points)
Urinary retention has been described with the use of drugs with anticholinergic activity (e.g. antipsychotic drugs, antidepressant agents and anticholinergic respiratory agents), opioids and anaesthetics, alpha-adrenoceptor agonists, benzodiazepines, NSAIDs, detrusor relaxants and calcium channel antagonists.
An 18 year old woman in her first pregnancy, presents to your office at 34 weeks with amenorrhoea. On examination you measure the symphysial-fundal height to be 28 centimetres. She was observed to be smoking outside your waiting room. What further clinical history would assist in assessing this case? What investigations could be helpful? (3) How would you manage her? What advice should she be given?
Investigations:
1. Ultrasound: A detailed ultrasound can provide accurate information about fetal growth, amniotic fluid levels, placental position, and other factors affecting pregnancy.
2. **Non-Stress Test (NST) or Biophysical Profile (BPP): **These tests can assess fetal well-being by monitoring fetal heart rate and evaluating fetal movements, breathing, and amniotic fluid volume.
3. Doppler Flow Study: A Doppler study of the umbilical artery can assess blood flow to the fetus and placenta.
What are the possible causes for intra-uterine growth restriction? How can they be diagnosed antenatally? What do the terms symmetric and asymmetric growth restriction refer to? How can the risk of asphyxia or death for a “small for dates” fetus be monitored?
Diagnosing IUGR Antenatally:
1. Ultrasound: Regular ultrasounds help monitor fetal growth and assess the estimated fetal weight and measurements.
2. Doppler Flow Studies: These assess blood flow through the umbilical cord and other fetal vessels, giving insights into placental function.
3. Maternal Blood Tests: These might include monitoring the mother’s blood pressure, blood sugar levels, and other indicators of her health.
4. Amniotic Fluid Volume: Measuring the volume of amniotic fluid can give indications of fetal well-being.
Symmetric Growth Restriction: In this pattern, all parts of the fetus are proportionally small. It’s often associated with early insults during pregnancy, such as genetic factors or early infections.
Asymmetric Growth Restriction: Here, the head of the fetus is of normal size while the body is smaller. This pattern usually occurs later in pregnancy and is often linked to placental insufficiency.