(U)- Epididymo-orchitis Flashcards

1
Q

What are the causes of epididymo-orchitis?

A

Escherichia coli
Chlamydia trachomatis
Neisseria gonorrhoea
Mumps

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2
Q

How does epididymo-orchitis typically present?

A

Testicular pain
Dragging or heavy sensation
Swelling of testicle and epididymis
Tenderness on palpation
Urethral discharge
Systemic symptoms e.g. fever

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3
Q

What is the key differential for epididymo-orchitis?

A

Testicular torsion

If any doubt treat as torsion until proven otherwise

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4
Q

How can epididymo-orchitis be discriminated from testicular torsion?

A

Relief of pain on elevation

This is a positive Prehn’s sign, it is negative with testicular torsion

Cremasteric reflex

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5
Q

What features of a history differentiate between STI or enteric organism as a cause of epididymo-orchitis?

A

Under 35
Increased number of sexual partners
Discharge from the urethra

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6
Q

What investigations are used to diagnose epididymo-orchitis?

A

Urine microscopy, culture and sensitivity

Chlamydia and gonorrhoea NAATon a first-pass urine

Charcoal swab- purulent urethral discharge for gonorrhoea culture and sensitivities

Saliva swab- PCR for mumps

Serum antibodies- for mumps, if suspected (IgM- acute infection, IgG-previous infection or vaccination)

Ultrasound

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7
Q

What is suggested by NICE for an enteric organism causing epididymo-orchitis?

A

Ofloxacin
14 days

Levofloxacin
10 days

Co-amoxiclav
10 days (when you cant use quinolones)

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8
Q

What are two notable side effects of quinolone antibiotics such as ofloxacin, levofloxacin and ciprofloxacin?

A

Tendon damage and rupture (especially Achilles tendon)

Lowers seizure threshold (caution in patients with epilepsy)

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9
Q

What are the complications of epididymo-orchitis?

A

Chronic pain
Chronic epididymitis
Testicular atrophy
Sub-fertility or infertility
Scrotal abscess

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