Brian Miller - Pediatric/Adult Urology Flashcards
common peds urology dx
congenital hydronephrosis
ureterocele
UTI
vesicoureteral reflux
dysfxn voiding
hypospadias
chordee/torsion
circumcision topics
preputial/labial adhesions
undescended testicles
testicle pain
normal urination
detrusor muscle contraction plus relaxation of urethral sphincter → passage of urine
dysfunctional urination
contraction of both detrusor and urethral sphincter → interrupted stream
dysfunctional voiding increases risk for (3)
UTIs
enuresis
incomplete bladder emptying
majority of dysfunctional voiding pt’s are identified
following PCP referral for:
recurrent UTI
AND/OR
intractable daytime enuresis
dysfunctional voiding is a common problem and accounts for up to __% of peds urology clinic visits
40%
mc cause of dysfunctional voiding
learned behaviors → holding
2 ex of learned behaviors/holding
response to potty training
environmental
3 other causes of dysfunctional voiding
infectious
detrusor over-activity
neurologic
sx of dysfunctional voiding
enuresis
interrupted stream
frequency
urgency
dysuria
malodorous urine
post-void dribbling
hematuria
abd/pelvis discomfort
hesitancy
symptoms of dysfunctional voiding often mimic
UTI
dysfunctional elimination syndrome
dysfunctional voiding
PLUS
constipation/encopresis
what is encopresis
fecal incontinence
imaging for dysfunctional voiding
KUB
dx procedure for dysfunctional voiding
- uroflow → measures voided urine over time
- bladder scan → after uroflow
labs for dysfunctional voiding
UA
urine culture
tx for dysfunctional voiding (5)
timed voiding
double voiding
good water intake
avoidance of bladder irritants
avoidance of constipation
pharm for dysfunctional voiding
alpha-blockers
anticholinergics
ex of alpha blockers
doxazosin
flomax → older kids
indications for anticholinergics for dysfunctional voiding
kids w. irritative voiding sx → urgency, frequency, enuresis
contraindications for anticholinergics for dysfunctional voiding
any kid w. elevated PVR (post void residual)
anticholinergics are better tolerated in __ version
extended release
imaging to help evaluate recurrent UTI
renal US
imaging to help evaluate constipation
KUB
imaging to help evaluate febrile UTI
voiding cystourethrogram (VCUG)
uroflow evaluates (3)
volume
voiding pressure
presence of staccato stream
bladder scan evaluates
incomplete bladder emptying → c.o urgency
what is this showing
large stool volume
bladder program involves (4)
timed voiding
double voiding
good water intake
avoidance of bladder irritants
bladder irritants (5)
citrus
caffeine
chocolate
carbonation
artificial red/purple dyes
UTIs are mc in males during __
and females __
males: 1st year of life
females: after 1st year of life
uncircumcised is rf for UTI during __
circumcised is rf for UTI __
uncircumcised: 1st year of life
circumcised: after 1st year of life
etiology of UTI in infants (3)
urinary stasis
constipation
neurogenic bladder
causes of UTI in older kids (3)
voiding dysfunction
constipation
upper tract pathology
hx clue for UTI
irritative voiding symptoms
ex of irritative voiding sx (6)
dysuria
enuresis
frequency
urgency
hematuria
hesitancy
first line lab to evaluate UTI
urinalysis
urinalysis is only a __ tool
screening
UA point of care test
UA dipstick
what UA test is more reliable than UA dipstick
UA microscopic
UA microscopic should be ordered if evaluating
hematuria
diagnostic test for UTI
urine culture
2 tests for UTI eval
- UA → screening
- urine culture → diagnosis
UTI + __ is more suggestive of renal involvment
fever
febrile UTI might indicate
pyelonephritis →
⅔ of infants < 2yo
imaging for all pt w. diagnosed UTI (febrile or non febrile)
RBUS
imaging for all pt. w. diagnosed UTI > 4 yo
KUB
indications for VCUG (voiding cystouretrogram) for UTI (3)
recurrent febrile UTI
1st UTI in circumcised male
atypical bacteria
tx for UTI
- targeted abx based on culture
- address underlying issues
3 conditions associated w. UTI
dysfunctional voiding
VUR
constipation
reflex of urine from the bladder, up the ureters, +/- to the kidney
vesicoureteral reflux
what is this showing
grade 2 VUR
what is this showing
grade 5 VUR
tx for VUR
obs vs abx vs surgery
most cases of VUR are found
after febrile UTI → VCUG ordered
imaging for VUR
renal US
MAG 3 renal scan
abx prophylaxis been associated w. __% reduction in incidence of recurrent UTI
35%
antimicrobial prophylaxis for kids w. vesicoureteral reflux has been associated w. __% reduction in incidence of recurrent UTI
45
consider circumcision in kid w.
VUR
PLUS
recurrent UTI
indications for surgery for VUR (3)
breakthrough UTI
UTI following d/c of pabx
family preference
if possible, avoid surgical intervention for VUR until after
1 yo
religions associated w. circumcision
muslim
jewish
__% of muslim men are circumcised globally
68.8
prevalence of circumcision in US
75%
global prevalence of circumcision
30#
there has been a __ trend in circumcisions in the US
downward
t/f: circumcision has minimal benefits on decreased HIV transmission and risk of penile ca
T!
it takes __ circumcisions to prevent 1 UTI
100
circumcision indication recs (2)
recurrent UTIs
at risk pt
what pt’s are at risk for recurrent UTIs and may benefit from circumcision (3)
PUV (posterior urethral valves)
high grade VUR
neuropathic bladder
penile carcinoma is associated w. (2)
phimosis
genital infxns
3 contraindications for circumcision
no vit K at birth
fam hx bleeding d.o
anatomic anomalies
what do you think when you see: meatus malpositioned, chordee, dorsal hooded ventral foreskin
hypospadias → anatomic anomaly
ventral penile curvature
chordee
incomplete ventral foreskin
dorsal hooded foreskin
what is this showing
hypospadias
you will almost never see __ on initial exam for hypospadias
complete prepuce
other common penile abnormalities (4)
chordee → ventral curvature
penile torsion
hidden/buried penis
webbed penis
2 tools used for circumcision
gomco clamp
pastibell
2 tools used for circumcision
gomco clamp
pastibell
which circumcision tool is quicker and has less bleeding risk
pastibell
bleeding w. circumcision mc results from
disruption of frenular vessels in response to excessive force of frenulum
other causes of bleeding w. circumcision (3)
mismatched gomco bell and late
premature removal of clamps
loose pastibell string
__ should never be used in conjunction w.
__ bc devastating penile loss can occur
electrocautery
metal clamps
rf for undescended testes
prematurity
fam hx
low birth wt
maternal dm
small for gestational age
__% of undescended testes will spontaneously descend by 4 mo old
35-43%
classification of undescended testes
undescended → true
retractile
ascended → previously descended
types of undescended/true undescended testes
palpable
non-palpable
best practice for undescended testes work up
do NOT obtain imaging for non palpable
undescended testes should be referred to specialist if not descended by
6 mo
2 concerns w. undescended testes
infertility
malignancy → 2-3 x normal risk
adult urology conditions
nephrolithiasis
bph
hematuria
ED
priapism
trauma
urinary retention
incontinence
male infertility
hpogonadism
varicocele
hydrocele
spermatocele
histologic dx that refers to proliferation of smooth muscle and epithelial cells w.in prostatic transition zone
bph
normal prostate is __ g
20
what scoring system is used for bph
IPSS: international prostate symptom score
__ and
__ are crucial in bph evaluation
detailed h&p
imaging for bph
cystoscopy
uroflow
bladder scan
1st and 2nd line pharm for bph
- alpha-1 blockers (ABs)
- 5-alpha-reductase inhibitors (5-ARIs)
suffix for alpha-1 blockers
-osin
suffix for 5-ARIs
-teride
2 mc used ABs
flomax
rapaflo
s.e of ABs (5)
hypotn
syncope
dizziness
retrograde ejaculation
arrhythmias
AB moa
relax smooth m (urethral sphincter)
5-ARI moa
reduce size of prostate
5-ARIs need to be used for __ to achieve results
6-12 mo
s.e of 5-ARIs
decreased libido
ejaculatory dysfxn
possible bone loss
dpn
decreased psa levels
3 non first line meds for bph
anticholinergics
beta-3 adrenergic agonists
phosphodiesterase type 5 (PDE-5( inhibitors
indications for anthicholinergics for bph
irritative sx if they empty their bladder well
pro of beta-3 adrenergic agonists
fewer s.e than anticholinergics
ex of beta-3 adrenergic agonist
mirabegron (myrbetriq)
indications for PDE-5 inhibitor for bph
concurrent bph and ed
PDE 5 suffix
-afil
ex sidenafil (viagra)
mc type of kidney stone
calcium oxalate
other types of kidney stones
calcium phosphate
uric acid
struvite
cystine
imaging for nephrolithiasis
renal us
non-contrast CT abd/pelvis → 96-100% sensitive
KUB
indications for surgical intervention of nephrolithiasis
UTI
intractable pain
solitary kidney
failed trial of MET x 2-4 weeks
asymptomatic calculus 5 mm or larger
what is MET
medical expulsive therapy →
tamsulosin (flomax)
prevention of nephrolithiasis (6)
water!!
calcium foods
minimize oxalate
minimize animal pro
minimize
sat
why are varicoceles almost always on the left
bc of 90 degree angle of drainage and valve failure on left
what type of varicocele is concerning (2)
bilateral
right sided
pain w. varicocele is aggravated by __
and worse at __
standing
end of the day
imaging for left sided varicocele
abdominal us
varicocele grading
1-3
varicocele only palpable w. valsalva
grade 1
varicocele that is nonvisible on inspection but palpable upon standing
grade 2
varicocele that is visible on gross inspection
grade 3