MORE GYN! Flashcards
Overflow incontinence is characterized by?
failure to empty the bladder adequately
due to an underactive detrusor muscle (neurologic disorders, diabetes or multiple sclerosis) or obstruction (postoperative or severe prolapse).
n elevated PVR, usually >300 cc, is found in overflow incontinence.
A normal post-void residual (PVR) is ?
50-60 cc.
Stress incontinence occurs when the bladder pressure is greater than the intraurethral pressure.
Genuine stress incontinence (GSI) is the loss of urine due to increased intra-abdominal pressure in the absence of a detrusor contraction.
The majority of GSI is due to urethral hypermobility (straining Q-tip angle >30 degrees from horizon).
underactive detrusor muscle is
neurologic disorders, diabetes or multiple sclerosis
bladder obstruction is
postoperative or severe prolapse
Risk factors for the development of pelvic organ prolapse are
increasing parity increasing age obesity some connective tissue disorders (Ehlers-Danlos syndrome) chronic constipation.
Women with a family history of POP have up to a 2.5 fold increase in prolapse
Retropubic urethropexy
a
Needle suspension
a
Artificial urethral sphincter
Artificial sphincters should be used in patients as a last resort to treat treats intrinsic sphincteric deficiency (hose in the sand)
Urethral bulking procedure
treats intrinsic sphincteric deficiency
Sling procedure
sling that is inserted through a small vaginal incision and attached to another structure in the pelvis for the purpose of supporting the urethra*
Suburethral slings may be either bladder neck or midurethral slings.
Mechanisms of stress incontinence include?
urethral hypermobility and intrinsic sphincteric deficiency (ISD).
Urethral hypermobility is ?
Stress urinary incontinence
like stepping on a hose in sand
-insufficient support of the pelvic floor musculature and vaginal connective tissue to the urethra and bladder neck
- causes the urethra and bladder neck to lose the ability to completely close against the anterior vaginal wall.
-with increases in intra-abdominal pressure
the muscular tube of the urethra fails to close, leading to incontinence
Intrinsic sphincteric deficiency (ISD) is ?
- stress urinary incontinence (SUI)
- loss of urethral tone that normally keeps the urethra closed
- severe urinary leakage even with minimal increases in abdominal pressure.
- can be +/- urethral hypermobility
Urgency incontinence is?
Women with urgency incontinence experience the urge to void immediately with involuntary leakage of urine
detrusor overactivity –> uninhibited (involuntary) detrusor muscle contractions
Overflow incontinence is caused by?
detrusor underactivity or bladder outlet obstruction
symptoms of pressure, fullness, and frequency, and is usually a small amount of continuous leaking.
Vaginal atrophy and loss of urine
low estrogen levels –> atrophy of the urethral mucosal epithelium.
Atrophy results in urethritis, diminished urethral mucosal seal, loss of compliance, and possible irritation, all of which can contribute to incontinence
– Functional incontinence occurs when?
a patient has intact urinary storage and emptying functions but is physically unable to toilet herself in a timely fashion (mobility issues)
detrusor instability is treated via?
anticholinergics are the mainstay of pharmacologic treatment. Oxybutynin is one example
Central and lateral cystoceles are repaired by?
fixing defects in the pubocervical fascia or reattaching it to the sidewall, if separated from the white line.