GUM Flashcards
(214 cards)
Symptoms of candidal vulvovaginitis
Soreness
Itching
Red skin - possible peeling, pustules or apples
White discharge
When to refer candidal vulvovaginitis
Unclear diagnosis No improvement despite treatment Immunocompromised patient Systemic treatment needed Recurrent candida - specialist GUM clinic
Treatment of candidal vulvovaginitis
Topical imidazole e.g clotrimazole, ketoconazole, econazole
Alternative = topical terbinafine
If problematic itch/ inflammation add mild steroid cream
If tx ineffective try - oral fluconazole 50mg 2-4 wks
Types of candida species
Candida albicans Candida tropicalis Candida glabrata Candida krusei Candida parasilosis
Common species involved in bacterial vaginosis
Gardnerella vaginalis
Mycoplasma hominis
Bacteroides
Mobilincus
Which STI is a flagellate Protozoan
Trichomonas vaginalis
Symptoms of Trichomonas vaginalis in women
10 - 50% asymptomatic non-specific symtoms Vaginal discharge Vulval soreness + itching Odour Discharge may be frothy / green Dysuria occasionally - low abdominal pain, vulval ulcers
Diagnosis of Trichomonas vaginalis
Microscopy of vaginal discharge
and TV NAATs
Treatment of Trichomonas vaginalis
Metronidazole (2g) single dose
Both partners simultaneously
signs of TV on examination of female patients
Vaginal discharge in 70% Frothy yellow / green discharge Vulvitis Strawberry cervix (punctate haemorrhages) - 2% Frothy discharge 5-15% NAD
Symptoms of TV in men
15 - 50% asymptomatic Urethral discharge dysuria Urethral irritation Urinary frequency
signs of TV on examination of male patients
urethral discharge - 20-60%
No signs - up to 70%
rare - balanoposthitis
what is balanoposthitis
inflammation of the foreskin and glans
Complications of TV
impact on pregnancy - low birth weight, pre-term delivery, maternal post-partum sepsis
Association with HIV
May enhance HIV transmission
diagnostic findings of TV on microscopy
detection of motile trichomonads by light field microscopy from wet prep slide
general advice when treating TV
Treat both partners simultaneously
Avoid sexual intercourse until 1 week after both partners completed treatment
Treatment used for TV
metronidazole 2g PO STAT
or metronidazole 400-500mg BD 5-7 days
Alternative = tinidazole 2g PO STAT (expensive)
can metronidazole be used in pregnancy and breastfeeding
Safe in all trimesters
Non Teratogenic
Safe in breastfeeding but may affect milk taste (avoid STAT dose)
Can tinidazole be used in pregnancy and breastfeeding
No - unsafe in animal trials
No evidence re human use in pregnancy and breastfeeding
Treatment of TV in a HIV positive patient
Use metronidazole 500mg BD for 7 days
what possible reaction should patients be warned about when taking metronidazole
disulfram-like reaction if taken with alcohol
Avoid all alcohol for duration of treatment and 48 hours afterwards
causes of treatment failure in TV
inadequate therapy
re-infection
resistance
Follow up recommendations for patient with TV
window period tests and bloods
No FU for TV unless symptoms continue
treatment protocol for non-response to standard TV therapy
repeat 7 day course of metronidazole 500mg BD - 40% respond to second course
if 2nd regimen failed - use metronidazole 2g OD for 5-7 days
if 3rd regimen failed complete resistance testing and use tinidazole 1g BD - TDS for 14/7 and intravaginal tinidazole 500mg BD 14/7