Part 2 Flashcards
(226 cards)
Pelvic floor exercises strengthen which muscles?
- Levator ani
- External anal sphincter
- Urethral sphincter striated muscle
Cystometry measures all phases of micturition except?
Emptying
Define types of vaginal/perineal tears, including OASIS grading system
1: perineal skin only
2: perineal muscle
3A: <50% EAS
3B: >50% EAS
3C: EAS + IAS
4: EAS, IAS, anal epithelium
Button hole injuries do not belong to this classification - they are their own entity
Risk factors for OASIS?
Previous OASIS Primiparous (*highest risk) AMA Diabetes Infundibulation Assisted vaginal delivery (forceps > vacuum) Midline episiotomy Prolonged second stage (>1 h) TOLAC/VBAC (effectively a primip) Augmentation of labour Macrosomia (EFW > 4000 g) Post-dates OP presentation Abnormal FHR
Protective factor for OASIS?
Obesity
Overall incidence of OASIS?
4 - 6.6%
Risk of recurrent OASIS?
4 - 8%
Complications of OASIS (7)?
- Pain
- Infection
- Wound breakdown
- Urinary retention
- Dyspareunia
- Flatal/fecal incontinence or urgency
- Fistula (rectovaginal)
List regimens for UTI prophylaxis in pregnancy
Cephalexin 250 mg PO daily
Nitrofurantoin 50 mg PO daily (avoid last 4 weeks of pregnancy)
Define recurrent UTI
2 uncomplicated UTIs in 6 months OR 3 culture-proven UTIs in 12 months
List complications of pessary use
- Erosions (9%)
- Can lead to fistulas, cancer if chronic and untreated
- Tx with removal and estrogen - Infection (2.5%)
- Discharge
- BV: remove more frequently + flagyl or replens
- Candida: can keep pessary, tx as usual - Dislodged/malpositioned
- Can lead to constipation
Which pessary has not been shown to prevent PTB?
Arabin
Complications of mesh?
- Bladder injury
- Infection
- EBL >500 mL/hematoma
- Mesh erosion/exposure (4% risk TVT, 12% other procedures)
- Dyspareunia
- Pain
- De novo SUI
What type of mesh has the lowest associated complication rates?
Polypropylene type 1 monofilament macroporous synthetic mesh
Risk factors for mesh exposure post-op?
Concomitant hysterectomy
Smoking
**Post-op tx with estrogen does not prevent
Predictors of pessary discontinuation?
Posterior wall prolapse
Young age (<65)
Urinary incontinence
Discomfort
Predictors of unsuccessful pessary fitting?
Short vagina (<6 cm) Wide introitus (>4 cm) Rectocele Previous vaginal surgery Co-existing SUI
Anal sphincter complex - list muscles and innervation
External anal sphincter (EAS) - inferior branch of pudendal nerve
Internal anal sphincter (IAS) - autonomic nervous system
Puborectalis - S3/4; responsible for 50% of resting tone
Strongest evidence for vaginal estrogen with incontinence?
Urge incontinence
List 5 causes of persistent SUI after surgery
- Treatment failure
- Wrong treatment
- De novo urge incontinence
- UTI
- Fistula
Symptom most likely to improve with pessary?
SUI (up to 21%)
Symptoms most likely to worsen with pessary?
Voiding difficulties (up to 53%)
Findings (2) on UDS that suggests intrinsic sphincter deficiency?
Maximal urethral closure pressure <20 cm H2O
Leak point pressure < 60 cm H2O
4 types of enterocele
- Congenital
- Pulsion (increased intrabdominal pressures)
- Iatrogenic
- Traction (aka POP; “natural” pulling)