GenitoUrinary Medicine (GUM) Flashcards
What are the risk factors for getting and STI? (4)
- Age <25
- Previous Hx
- No condom use
- Partners - frequent change/ lots at one time
What are the 7 main principles of STI management?
Testing
Treatment
Partner Notification
Prophylaxis e.g. for procedures that may cause ascending infections e.g. insertion of IUS
Vaccine (Hep B, HPV)
Low threshold for assessment and treatment
Don’t shag until both parties have completed treatment
Why should partners be notified?
To trace and treat +/- test
Prevents complications
Prevents partner transmitting to anyone else
How can partners be notified?
Patient referral (pt tells partner themselves)
Provider referral (service tells partner = preserves anonymity)
Conditional referral (service tells partner if pt does not within a specific time frame)
For which infections is NAAT needed?
Chlamydia
Gonorrhoea
HSV
For which infections is a blood sample needed?
HIV
Syphilis
Hep B (Woman or partner from high risk country)
Hep C (if woman or partner has ever injected drugs)
What is included in the sexual health MOT?
Chlamydia and Gonorrheoa
HIV and Syphilis
Trichomonas Vaginalis
Candida
What is chlamydia trachomatis?
An obligate intracellular gram -ve organism
Mainly STI but can cause other infection depending on what has gone where
What is the incubation period of Chlamydia Trachomatis?
2 weeks
So won’t show within this period of having unprotected sex
What are the serotypes of Chlamydia and what can they cause?
Chlamydia D to K = genitourinary infection
Chlamydia L1 to L3 = Lymphogranuloma Verenum (LGV)
What are the risk factors for Chlamydia?
Non-modifiable = age below 25, bacterial flora, genetic predisposition
Modifiable = no condom use, multiple/frequently changing partners, non-barrier contraception, partner has chlamyd, low socio-economic status
What are the symptoms of chlamydia often seen in females?
OFTEN ASYMPTOMATIC (70%)
Dysuria
Abnormal discharge
PCB/IMB
Lower abdominal pain
What are the signs of chlamydia often seen in females?
Cervix - excited, inflamed, cobblestoned, contact bleeding
Mucopurulent
Abdo/adnexal tenderness
What change in the bacterial flora can increase the risk of getting chlamydia?
If the flora is lactobacillus iners dominant
What are the symptoms of chlamydia often seen in males?
OFTEN ASYMPTOMATIC (50%)
Dysuria +/- discharge
Epididymo-orchitis (unilateral testicle pain +/- swelling +/- fever)
What are the signs of chlamydia often seen in males?
Epididymal tenderness
Give 3 other ways in which chlamydia can present?
Reiter’s Syndrome/ REACTIVE ARTHRITIS (urethritis, conjunctivitis, arthritis - HLA-B27 associated, males)
Fitz-Hugh-Curtis (RUQ pain due to perihepatitis from PID)
Proctitis (rectal chlamydia)
When should sexual abuse be considered?
+ve test in 13-15 unless clear evidence from a consensual peer
All young people unless clear evidence showing consent
Esp if clear difference in mental capacity or power
Which investigations should be done if someone presents with chlamydia symptoms?
Bed
Bloods - do HIV and syphilis too
Imaging
Other - vulvovaginal swab/first catch urine specimen for NAAT
Which groups of people should be tested for chlamydia?
Everyone:
- presenting to GUM clinic
- with symptoms
- partner has symptoms
- under 25 and has had treatment within the past 3 months
- concerned about exposure
Women:
- undergoing procedures that can cause ascending infection
- Presenting for a TOP
- mothers to neonates with infection
What is the conservative management of Chlamydia Trachomatis?
Advice:
- condom use
- Treat current partner despite result
- Don’t have sex until finish treatment/1 week after starting
Refer if:
- Complicated management
- Pregnant
- Symptoms persist despite treatment
What is the medical management of Chlamydia Trachomatis?
1) Doxycycline PO BD for 7/7
2) Azithromycin PO as a one off
3) Ofloxacin/Erythromycin
What is Neisseria Gonrorrhoea?
Gram negative diplococcus
Incubation period of 2 weeks
Resistant to Ceftriaxone
How is gonorrhoea transmitted?
Direct inoculation of infected secretions from one mucous membrane to another
What are the risk factors for N Gonorrhoea?
Non-modifiable:
- Age (young)
Modifiable:
- Hx previous STI
- Co-existent STI
- New/multiple partners
- no condoms
- Hx of drug use/commercial sex work
What are the symptoms of N. Gonorrhoea in males?
Urethral:
- Discharge
- Dysuria
Rectal:
- Asymptomatic
- Discharge
- Bleeding
- Pruritus
What are the signs of N. Gonorrhoea in males?
Mucopurulent urethral discharge
Epididymal tenderness
Balanitis (inflammation of the glans penis/foreskin)
What are the symptoms of N. Gonorrhoea in women?
Endocervical:
- Asymptomatic (50%)
- Change in discharge
- Lower abdominal pain
Bartholinitis
Cervicitis
Dysuria
What are the signs of N. Gonorrhoea in women?
Mucopurulent endocervical discharge
Contact bleeding
Often normal
What are the signs of a neonatal infection with N. Gonorrhoea?
Acute conjuctivitis
Bilateral
Within 48 hours of birth
Chemosis + lid oedema
How is N. Gonorrhoea diagnosed?
Rapid = light microscopy of gram stained specimen
NAAT
Culture if +ve NAAT or symptoms
Take another sample 2 weeks later if pt has only had contact with known Dx
What advice should be given to someone presenting with N. Gonorrhoea?
Safe sex info
Avoid unprotected sex until both have completed treatment
Explain condition + long term effects
Explain routine screening
When should partner’s be notified if a patient has N. Gonorrhoea?
Males + symptoms = all partners within 2 weeks
Asymptomatic/non-urethral infection = all partners within past 3 months
Should follow-up be offered to individuals with N. Gonorrhoea?
YES
Check compliance and that symptoms have resolved
Partner notification
Health promotion
What is the medical management of N. Gonorrhoea?
Ceftriaxone IM STAT + Azithromycin PO STAT (or Doxy instead of Cef if penicillin allergic)
Or can give high dose Azithromycin/Cefotaxime as a one off
How should pregnant ladies with N. Gonorrhoea be managed medically?
The same as normal
What is haematogenous dissemination of gonoccocal disease?
Complication of n gonorrhoea
Skin lesions - papules/bullae/necrosis
Reiter’s syndrome
Meningitis/endocarditis/myocarditis
What is non-gonococcal urethritis? What are the most common causative organisms?
urethritis caused by other organisms and non-infective agents
Chlamydia trachomatis mycoplasma genitalium UTI Adenovirus + conjunctivitis HSV
What is Syphilis?
STI caused by the spirochete Treponema Pallidum
Lies latent between episodes
Spread through close contact with an infected sore
What is the incubation period for Syphilis?
3 months!
What are the risk factors for syphilis?
PWID (people who inject drugs)
MSM
Hx STIs
Unprotected sex/sharing sex toys
What is the natural history of Syphilis?
Primary - Development of a deep, painless ulcer within 3-90 days of exposure
Secondary
- Development of a painless, generalised rash even on palms and soles of feet within 4-10 weeks
- Signs of systemic infection
Latent
- Early = within 2 years
- Late = after 2 years.
Tertiary
- Gummatous
- Neuro (Argyll Robertson pupil)
- CVS
What are the investigations for Syphilis?
Bed
Bloods - Treponemal Enzyme Immunoassay (EIA) and Venereal Disease Referent Laboratory for stage and monitoring
Imaging
Other
What does EIA test for?
IgM for early infection
IgG for after 5 weeks
if both are -ve then repeat at 6 and 12 weeks after a high risk event
What is the medical management of Syphilis?
1) Large dose of BenPen IM Stat
2) PO Azithromycin Stat
3) Procain Penicillin IM OD for 10 days
4) Doxy for 2 weeks
What is the management of late latent syphilis?
BenPen weekly for 3 weeks
What is the management of neurosyphilis?
Procaine penicillin OD IM for 3 weeks with Probenecid
What is the management of syphilis in pregnancy?
1st and 2nd trimester = single dose BenPen
3rd trimester= 2x benpen 1 week apart
What is the Jarisch-Herxheimer reaction?
Acute febrile illness with headache, myalgia, chills, riggers (like flu)
Reaction to treatment
Only an issue if neuo or ophthalmic involvement or in pregnancy
Manage with antipyretics and reassurance