Urogyne Flashcards
FDA approved Indications of sacral neuromodulation:
1- OAB
2- urge Urine incontinance
3- fecal incontinance
Treatment of Recurrent UTI more than 4/ year
Nitrofurantoin
Kelly’s suture is done in
Stress incontinence.
The normal functional bladder capacity of a healthy human urinary bladder is approximately?
500ml
Thenormalfunctionalbladdercapacityisaround400‐600ml.Firsturgetovoidistypicallyfeltwhenthebladderisapproxiamtly150mlfull.
The adjusted odds ratio for any incontinence associated with vaginal delivery compared with that with cesarean delivery was — (Rortveit, 2003a).
The adjusted odds ratio for any incontinence associated with vaginal delivery compared with that with cesarean delivery was 1.7 (Rortveit, 2003a).
daughters of incontinent women had an increased relative risk of – and an absolute risk of– percent of having urinary incontinence. Younger sisters of incontinent women also had a greater likelihood of having any urinary incontinence (Hannestad, 2004).
daughters of incontinent women had an increased relative risk of 1.3 and an absolute risk of23 percent ofhaving urinary incontinence. Younger sisters of incontinent women also had a greater likelihood of having any urinary incontinence (Hannestad, 2004)
Urine Continence requires the complex coordination of multiple components that include:
muscle contraction and relaxation, appropriate connective tissue support, and integrated innervation and communication between these structures. Simplistically, during filling, urethral contraction is coordinated with bladder relaxation and urine is stored. During voiding, the urethra relaxes and the bladder contracts. These mechanisms can be challenged by uninhibited detrusor contractions, marked increase in intraabdominal pressure, and degradation or dysfunction of the various anatomic components of the continence mechanism.
Urogenital Sphincter Composed of striated muscle. this sphincter complex includes:
(1) the sphincter urethrea, (2) the urethro-vaginal sphincter and (3) the compressor urethrea.
Function of a region of the rostral pons known as the pontine storage center (or “L” region) ?
region of the rostral pons known as the pontine storage center (or “L” region) also may increase activity of the external urethral sphincter.
M2 and M3 receptor subtypes in bladder are predominantly responsible for
detrusor smooth muscle contraction. Thus, treatment with muscarinic antagonist medication blunts detrusor contraction to improve continence. Specifically, continence drugs that target only the M3 receptor maximize drug efficacy yet minimize activation of other muscarinic receptors and drug side effects.
What is “M” region? Function ?
When an appropriate time for bladder emptying arises, sympathetic stimulation is reduced and parasympathetic stimulation is triggered via the pontine micturition center {or “M” region).
Detrusor sphincter-dyssynergia
the urethral sphincter fails to relax during contraction of the detrusor and urine retention ensues. Classically, this is a possible urinary complication of spinal cord injury termed detrusor sphincter-dyssynergia and may lead to elevated bladder pressures and vesicoureteral reflux. Women with this condition are sometimes treated with alfa·blocking agents to help with sphincter relaxation and to lower bladder pressures during contraction, but these may aggravate hypotension.
Physiology of urine evacuation
Efferent impulses from the pontine micturition center result in inhibition of somatic fibers in the Onuf nucleus and voluntary relaxation of the striated urogenital sphincter muscles. These efferent Impulses also result In preganglionic sympathetic Inhibition with opening of the vesical neck and parasympathetic stimulation, which results In detrusor muscarinic contraction. The net result Is relaxation of the striated urogenital sphincter complex causing decreased urethral pressure, followed almost Immediately by detrusor contraction and voiding.
urethral and bladder neck support is integral to continence. This anatomic support derives from:
(1) ligaments along the urethra’s lateral aspects, termed the pubourethral ligament.
(2) the vagina and its lateral fascial condensation;
{3) the arcus tcndineus fascia pelvis;
(4) levator ani muscles.
Detrusor overactivity (DO)
describes involuntary contractions of the bladder wall during filling cystometry. The contractions may be spontaneous or provoked and may or may not be associated with a sense of urgency or urgency incontinence. Because it is a urodynamies study finding, DO cannot be used interchangeably with the sympum descriptions overactive bladder urgency urinary incontinence. Nonetheless, DO is believed to underlie these last two. DO may be defined further by the qualifiers neurogenic (if a relevant neurologic condition is present) or idiopathic.
impaired bladder muscle contractility may be a consequence of
aging, smooth muscle damage, fibrosis, hypoestrogenism, peripheral neuropathy (e.g., longstanding diabetes mellitus, vitamin B12 deficiency), or damage to spinal detrusor efferent nerves (e.g., multiple sclerosis or spinal stenosis)
Voiding frequency is normally
less than eight times a day and once at night, and total volume voided in 24 hours is typically less than 1800 mL (Lukacz, 2009).
frequent voiding without increased oral fluid intake may indicate
overactive bladder, UTI, calculi, or urethral pathology and often prompts additional evaluation. In addition, urinary frequency is commonly associated with interstitial cystitis/bladder pain syndrome (IC/BPS). With IC/BPS, the numbers of voids may commonly exceed 20 per day.
Nocturia may be noted in women with
urgency urinary incontinence or in those with systemic fluid management disorders such as congestive heart failure. In the latter case, treatment of the underlying condition often leads to symptom improvement or cure of nighttime frequency.
postvoid dribbling, is classically associated with
urethral diverticulum, which may often be mistaken for urinary incontinence
urinary incontinence may be linked with several medical conditions or their treatments, which could be modified to improve incontinence. To help remember these potential contributors, a useful mnemonic is “DIAPPERS”
dementia/delirium, infection, atrophic vaginitis, psychological, pharmacologic, endocrine, restricted mobility, and stool impaction
detrusor underactivity /impaired bladder muscle contractility may be a consequence of
aging, smooth muscle damage, fibrosis, hypoestrogenism, peripheral neuropathy (e.g., longstanding diabetes mellitus, vitamin B12 deficiency), or damage to spinal detrusor efferent nerves (e.g., multiple sclerosis or spinal stenosis) (Aldamanhori, 2017; Zimmern, 2014).