voiding dysfunction in children
DESCRIPTION
Voiding Dysfunction in Children. Natalie Barganski, RN, CPNP. Objectives. The learner will be familiar with the presentation of voiding dysfunction The learner will be familiar with the evaluation of voiding dysfunction - PowerPoint PPT PresentationTRANSCRIPT
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VOIDING DYSFUNCTION IN CHILDREN
Natalie Barganski, RN, CPNP
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Objectives
The learner will be familiar with the presentation of voiding dysfunction
The learner will be familiar with the evaluation of voiding dysfunction
The learner will be familiar with different treatment options for voiding dysfunction
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Physiology of micturition Muscles of the bladder and the internal
urinary sphincter are innervated by autonomic nerves, sympathetic and parasympathetic
These nerves are integrated at various sites in the spinal cord, brain stem, midbrain, and higher cortical centers
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Physiology of micturition Two major
functional roles of the bladder, storage and elimination of urine
Filling Phase
Storage
Voiding Phase
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Micturition continued It evolves from involuntary bladder
emptying during infancy to daytime urinary continence, usually around 4 years of age, then night time incontinence usually by 5 -7 years of age
It is usually achieved after successful nighttime daytime bowel continence
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Voiding Dysfunction General term to
describe abnormalities in either the filling and/or emptying of the bladder
It constitutes ~ 40% of the Pediatric Urology Clinic
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International Children’s Continence Society Global multidisciplinary organization of
clinicians involved in the care of children with lower urinary tract dysfunction
Standardized definitions for voiding dysfunction symptoms and disorders
These definitions mostly apply to children who are five or more years of age
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ICCS Definitions Daytime frequency
Incontinence
Urgency
Hesitancy
Straining
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ICCS Definitions continued
Weak stream
Intermittent stream
Holding maneuvers
Post-micturition dribbling
Residual urine
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Categories Nocturnal enuresis or nighttime
incontinence Continuous or intermittent
daytime urinary incontinence – these disorders are generally applied to children at least 5 years of age or older
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Nocturnal enuresis
Monosymptomatic enuresis (MNE)
Nonmonosymptomatic enuresis (NMNE)– occurs in children with enuresis who also describe other LUT symptoms
Primary or secondary enuresis- 85% of all cases of childhood enuresis in primary
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Nocturnal enuresis cont. Both MNE and
NMNE are often hereditary
Three major causes:
Nocturnal polyuria
Detrusor overactivity
Increased arousal thresholds
Nevéus, T, et. al. ICCS MNE Standardization 2008
INCIDENCE
No family history 15%
One enuretic patient
44%
Two enuretic parent
77%
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Daytime Urinary IncontinenceDue to underlying abnormalities of bladder
function Overactive bladder
Voiding postponement and underactive bladder
Dysfunctional voiding
Other conditions- giggle incontinence, vaginal voiding, primary bladder neck dysfunction
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Etiology Neurogenic
causes
Anatomic causes
Functional causes
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Prevalence Nocturnal enuresis- 15% - 20% of 5 year
olds, decreases with increasing age Daytime urinary incontinenceFour – six year olds – up to 20% have
daytime urinary incontinenceDecreases with age Five – Six year old children – 10 %Six – Twelve year old children- 5 %Twelve – Eighteen year old children- 4 %
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Categories based on risk Minor Daytime
frequency Giggle
incontinence Stress
incontinence Post void-
dribbling Nocturnal
enuresis
Moderate Underactive
bladder Overactive
bladder Dysfunctional
elimination syndrome
Severe Hinman Ochoa Myogenic failure
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Associated conditions Urinary tract infection
Vesicoureteral reflux
Constipation and dysfunctional elimination syndrome
Behavioral and neurodevelopmental issues
Bladder extrophy, epispadias, ectopic ureter, neurogenic bladder
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Assessment of urinary incontinenceMain goals:
Find those that are at risk for upper tract deterioration in order to prevent of renal impairment
Establish the cause of incontinence
Improve quality of life
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History & PhysicalHistory is the KEY in determining the type
of disorder Birth history
Child’s medical history
Family medical history
Developmental history
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Voiding History Toilet training history Voiding schedule Symptoms of voiding dysfunction Diet intake, including fluid intake
(caffeinated) Bowel habits Family conflict or stress, behavior,
peer relations Sleep Treatment strategies
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Clinical Tools- Voiding Questionnaire
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Tools- Bladder (Voiding) Diary
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Tools- Bristol Stool Chart
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Physical Examination Focus is on detecting neurologic and
urologic abnormalities Height/weight Blood pressure Abdominal palpation Lower back Neurologic exam Genital examination
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Investigations UA, culture Nocturnal urine
production Bladder scan- Uroflow with or w/o
EMG RUS VCUG MRI Urodynamic studies Dynamic renal
imaging
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Management FIRST- Treatment of Constipation
40% of children with LUT symptoms have constipation
Large retrospective study of 234 patients showed a resolution of constipation was associated with elimination of wetting in 89% and 63 % of children with daytime or nighttime urinary incontinence, and prevention of UTIs
Loening-Baucke, V. Pediatrics 1997; 100-228
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ManagementWhen to start
treatment? When the child is ready!
Nonpharmacolgic or conservative treatment- Voiding Behavior Modification
A partial response with > 50% reduction of incontinent episodes
Allen, et al. Urology 2007; 69:962 Weiner, et al. J Urol 2000; 164-786
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ManagementIf conservative treatment fails to relieve
symptoms treatment is condition specific
NE- desmopressin, alarm, maybe anticholinergics, imipramine
OAB- anticholinergic medication can be beneficial
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Management Underactive bladder- timed voiding is
important, avoid anticholinergics, alpha adrenergic blockade has been helpful in relaxing bladder outlet
Non-neurogenic dysfunctional voiding- concern for upper urinary tract deterioration, may need urodynamics, pelvic floor relaxation techniques, biofeedback, or an alpha antagonist
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Dysfunctional voiding
Compensatory detrusor hypertrophy and hyperplasia
Small capacity trabeculated bladder that may elevate bladder pressures
Vesicoureteral reflux and resultant upper tract renal
damage
Detrusor decompensation
and hypocontractilit
y
May
need
CIC or surgery
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Management Biofeedback- therapy teaches children
how to identify and control the muscle groups involved in voiding
Reserved for children with detrusor sphincter dyssynergia contributing to daytime incontinence despite behavior modifications/pharmacotherapy
Helpful in children with significant post void residuals who have recurrent UTI and constipation
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THANK YOU!! QUESTIONS?