Urological Conditions In Children Flashcards

1
Q

Define Retractile teste

A

It is retractile testes

Descended testes which has been displaced upwards by the cremaster muscle

The testes is able to be manoeuvred (milked) in the bottom of the scrotum

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2
Q

What is the normal descent of the testes?

A

Transabdominal migration

  • Initiated by gubernacular swelling
  • Under hormonal control via Mullerian Inhibiting substance

Inguinoscrotal descent

  • Preceded by protrusion of gubernaculum and process vaginalis into scrotum
  • Testosterone is crucial for this phase of decsent
  • Actions of androgens are mediated by neuronstransmitters released from genitourinary nerve
  • Completed in 80% of testes by 32 weeks
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3
Q

Discuss the presentation of retractile testes

A

On inspection there is normal scrotal development

If the testes is not initially palpable then attempt to “milk” the testes down

  • Run fingers from one hand from ASIS towards the pubic tubercle
  • Feel the testes with the other hand

Retractile testes can be brought int the scrotum

30% can be stuck in inguinal canal - orchidopexy

Must be examined annually

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4
Q

Define undescended testes

A

Testes which has been arrested along the path of testicular descent

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5
Q

How would you diagnose undescended testes?

A

Examination

  • Palpable or impalpable?
  • Can the testes be milked down?
  • Is it along the path of testicular descent or absent(15%) ?

Bilateral undescended testes may represent an intersex problem - must investigate

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6
Q

What are the complications of undescended testes?

A

5-10x increased risk of testicular cancer

Infertility - spermatogenesis is affected

Inguinal hernia - ass with PPV

Testicular torsion

Trauma

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7
Q

What is the treatment of undescended testes?

A

Orcidopexy

  • Between 6-12 months coz’ there’s a chance that the testes may still descend by 6 months
  • Earlier detection of testicular cancer

Hormone therapy to facilitate descent

  • Beta-HCG
  • GnHR
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8
Q

What is the clinical presentation of an infant with a UTI?

A

Pyrexia
* may be febrile

Irritibility

Poor feeding

FTT

Diarrhoea

Vomiting

Jaundice

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9
Q

What is the clinical presentation of an older child with a UTI?

A

Abdominal pain

Dysuria

Incontinence

Haematuria

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10
Q

How would you collect a urine specimen from a child with a suspected UTI?

A

Urine bag
* Clean genitalia first

Suprapubic aspiration

  • If difficulty obtaining uncontaminated bag specimen
  • Coz’ bladder is an abdominal organ in kids
  • Most accurate - Any number of organisms are significant

Midstream urine specimen
* For older kids who can understand instructions

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11
Q

What are the dipstick findings of a child with a UTI?

A

Positive leucocytes

Positive nitrates

Positive blood (maybe)

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12
Q

What patients that present with a UTI should be investigated?

A

All 1st infections should be investigated

Under 2:

  • U/S of kidneys, ureters and blader
  • MCUG

Over 2:

  • U/S of kidneys, ureters and blader
  • MCUG if…
  • U/S abnormal
  • Temp >38
  • Loin pain
  • Vomiting
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13
Q

Which investigations would you do for a UTI in children?

A

Urine Dipstick

U/S
* Non-invasive and ideal for diagnosing obstruction

MCUG

  • Gold standard for detecting VUR
  • Invasive
  • Only after UTI had been treated

Urodynamic studies
* Patients with recurrant UTI, incontinence and constipation

Radionuclide scans

  • DMSA - acute pyelonephritis and scarring of
  • MAG3 - to detect obstruction
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14
Q

What are the associated abnormalities found in children with UTI?

A

50% have abnormalities

Vesico-urethral reflux (85%)

Obstructive

  • PUV
  • PUJ obstruction
  • Primary obstructive megaurethra
  • Uretherocele

Neuropathic bladder

Caculi

Exctopic ureter

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15
Q

What is the management of a UTI in a child?

A

Admit

  • Infants
  • Severe systemic illness with dehydration
  • Immunocompromised child

Antibiotics 7-14 days
* Augmentin (15-20mg/kg/dose) due to increased resistance to Ciprofloxacin

Prophylaxis - until imaging completed

  • Nitrofurantoin
  • Nalidix acid
  • Co-amoxiclav (augmentin)?

Prophylaxis for 6 months if investigations normal but patient has recurrent UTIs

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16
Q

What are the medical indications for a circumcision?

A

True phimosis (Pathological phimosis)

Paraphimosis

Recurrent balanitis / balanoposthitis

Genital warts affecting the foreskin (conylomata acuminata)

Superficial penile carcinoma involving only the foreskin

Foreskin trauma

Inadequate previous circumcision

17
Q

Define a phimosis

A

Inability to retract the foreskin over the glans of the penis

18
Q

Define a paraphimosis

A

An emergency

A tight foreskin is retracted behind the glans and cannot be reduced

19
Q

What are the advantages of a circumcision?

A

Prevention of UTI

Prevention of Penile cancer

Prevention of HIV infection

20
Q

What are the contraindications for a circumcision?

A

Prematurity

Neonatal illness

Fam hx of bleeding disorders

Hypospadias

Chordee

Buried penis

Webbed penis

21
Q

What are the methods of circumcision?

A

Shields

Clamps

Surgical excision

  • Adequate haemostasis
  • Double excision - neatest
22
Q

What are the complications of circumcision?

A

Haemorrhage

Infection

Meatal ulcer

Skin complications

  • Phimosis
  • Concealed penis
  • Chordee

Glanular injury

Necrosis

Urethrocutaneous fistula

23
Q

Define the characteristic features of hypospadias

A

An abnormal opening of the urethral meatus on the ventral side of the penis

Dorsal “hood’ (skin)

Chordee (ventral curvature of the penis)

24
Q

Discuss the embryology of hypospadias

A

Occurs in 8th-15th week gestation

There is failure of the tubularisation process to convert the urethral groove into the tubular urethra which leads to hypospadias

Development of a normal urethra requires dihydrotesterone

25
Q

What is the classification of hypospadias?

A

Distal (65%)

  • Most common
  • Least severe

Middle (15%)

Proximal (20%)
* Most severe

26
Q

What are the clinical features of hypospadias?

A

An abnormal opening of the urethral meatus on the ventral side of the penis

Dorsal “hood’ (skin)

Ventral curvature of the penis (Chordee)

Spraying of urine (older boys)

If Hypospadias + bilateral UDT&raquo_space; Must exclude intersex

27
Q

What are the aims of treatment for hypospadias?

A

Straight stream

Fertility

Cosmetic

28
Q

What is the management of hypospadias?

A

Usually done around 2 years

Do NOT circumcise - Need skin for urethral reconstruction

Orthoplasty
* Correction of chordee - straighten penis

Urethroplasty
* Move urethra to tip of penis