Intro Week Lectures 1 Flashcards
How do you calculate a child’s bladder capacity?
Up to 12 yrs old
(Child’s Age + 1) x 30
What can cause a neuropathic bladder in kids?
spinal cord injury
brain injury / nerve damage
spina bifida
bladder extrophy - protrusion of bladder through defect in abdominal wall
cloacal malformation - ‘common channel’
What are the sxs of neuropathic bladder in kids?
UTI
Kidney stones
Urinary incontinence
Frequency + urgency
Small urine vol during voiding
Dribbling
How can a neuropathic bladder be managed?
intermittent catheterisation
suprapubic catheter
Mitrofanoff
- A tube created using the appendix or small intestine which connects the bladder to the surface of the skin
Give some structural urological problems that may be seen in kids
vesico-ureteric reflux - ureter goes straight through bladder wall instead of at an angle = retrograde flow of urine = severe / frequent UTIs
uterocele - distal ureter balloons at opening into bladder forming a sac - can cause obstruction
PUJ obstruction - (1/1500 children)
Posterior urethral valves (PUV) - extra membranes cause narrowing of urethra in boys, often spotted at antenatal USS
Give some signs and sxs of PUV
Delayed urination
Weak stream / difficulty urinating
Palpable bladder
Urosepsis
Lethargy and poor feeding
UTIs
How can PUV be investigated?
micturating cystourethrogram
Mx of PUV?
catheterisation
mx of any UTI / fluid imbalance
cystoscopy and valve ablation
regular assessment of kidney function, growth and bladder training
What can cause urinary incontinence in kids?
constipation
reduced drinking
neuropathic bladder
structural urological problems
holding / delaying access to toilet
ADHD / autism
OverActive Bladder (OAB) causes a frequent and sudden urge to urinate that may be difficult to control. It may present with incontinence in children.
What can cause it?
Constipation
Reduced drinking
Certain drinks - artificial juices, caffeine (bladder irritants)
Holding / delaying toileting
UTI’s
An underactive bladder is also known as detrusor underactivity which is a bladder that has a contraction reduced in strength or duration.
What sxs may this present with?
Prolonged time required to PU
Frequency / Urgency
Requiring to double void
Needing to wait for the flow to start
What can cause underactive bladder in kids?
Bladder outlet obstruction (PUV)
Neurological disorders
Spinal cord injuries
Sxs of UTI in kids?
Dysuria
Nocturia
Frequency/urgency
Abdominal pain
Fever
Cloudy/dark urine
Causes of UTI in kids?
Constipation
Dehydration
Withholding urine
Reflux
Increased bladder pressure
Give some causes of nocturnal enuresis in kids
Small bladder (inability to hold a large amount of urine)
No awareness of a full bladder
Ongoing Constipation
Stress at school or home
Poor daytime toilet habits
How can nocturnal enuresis be managed in kids if lifestyle modification does not work?
enuresis alarm
desmospressin
What ix can you do for a child with urological problems ?
Physical exam – abdominal palpation (bladder distention, Faecal loading)
Renal scans – USS +XRAY
Uroflowmetry
* Uroflow measures the vol of urine released from the body, the speed at which it is released and how long it takes to release
MAG3
* A MAG3 Renogram scan is used to assess the structure and location of the kidneys and to check how well they are working
DMSA
* Identifies the shape of the kidney and how well its functioning
Urodynamics
* Identifies how well the bladder can hold and release urine.
General lifestyle advice for children with urological problems?
Treating underlying constipation
Drinking plenty
Accessing the toilet every 2-3hrs
Sitting and relaxing the bladder
Avoid withholding/delaying
Define asthma
a disease that includes the symptoms of wheeze, cough and breathing difficulty together with reversible airways obstruction, airway inflammation and bronchial hyper-responsiveness.
It demonstrates variability
Define wheeze
Continuous musical (whistling) sound , usually expiratory
Due to oscillation of opposing airway walls that are narrowed
◦ Bronchospasm
◦ Swelling of mucosal lining
◦ Excessive secretions
Give some causes of wheeze in children
Asthma
Respiratory infections - often viral infections
* Bronchiolitis
* Bronchiolitis obliterans
* LRTI
Excess secretions
* CF
* Ciliary disease
Airway abnormalities
* Bronchomalacia
* Chronic lung disease of prematurity
Foreign body inhalation
What is spirometry?
Physiological test
– Records volume/flow of air over time
There are three distinct phases to the forced exhalation manoeuvre as follows:
1) maximal inspiration
2) a ‘‘blast’’ of exhalation
3) continued complete exhalation to the end of test
How do you carry out bronchodilator reversibility testing?
4 puffs of salbutamol (100mcg) via spacer/MDI
Repeat spirometry after 10-15 minutes
Increase in FEV1 of ≥12% is positive