gynae infection - bacterial Flashcards
natural pH of vagina
acidic
which bacteria keeps vaginal pH
lactobacillus –> acidic pH
most common organism thrush
candida albicans (yeast infection)
RF thrush
DM // antibiotics, steroids // pregnant // immunosuppressed eg HIV
symptoms thrush
cottage cheese discharge // not smelling // itch!! // superficial dyspareunia, dysuria // vulva redness, fissures
invx thrush
usually clinical (can do high vaginal swab)
1st line mx thrush
oral fluclonazole 150mg +/- topical imidazole
2nd line mx thrush
pessary clotrimazole 500mg +/- topical imidazole
mx thrush in pregnancy
pessary (oral contraindicated)
what defines recurrent thrush
4 in a year
invx recurrent thrush
high vaginal swab // consider glucose for diabetes
mx recurrent thrush
induction maintenance regime // oral fluconazole every 3 days –> 0ral fluclonazole weekly for 6 months
organism VB
gardnerella vaginalis (anaerobe)
who gets BV
sexually active women (not an STI)
amstel criteria for BV
3/4: smelly, thin discharge // clue cells on microsocpy // pH >4.5 // whiff test
mx BV
oral metronidazle 5-7 days // (topical metro or clinda if oral CI)
mx BV in pregnancy
oral metro at all stages
complications of BV in pregnancy
preterm, low birth weight, chorioamnionitis
what organism causes trichomonas
protozoan (STI)
features trichomonas (F)
smelling, yellow discharge // strawberry cervix!!! // pH >4,5
features trichomonas (M)
asymptomatic, maybe urethritis
invx trichomonas
microscopy –> wet mounds + motile trophozoite
mx trichomonas
oral metro 5-7 days
symptoms chlamydia
asymptomatic // F: cervicitis, bleeding, dysuria // M: discharge, dysuria
complications chlamydia
epidiymitis // PID // endometritis // ectopic pregnancy // reactive arthritis // Fitz hugh curtis (hepatitis)
invx + swab chlamydia
M: first void urine // F: vulvovaginal swab // NAAT // 2 weeks after exposure if known contact
screening for chlamydia
all sexually active people aged 15-24
1st line mx chlamydia
doxy 7 days // (or azithro 1 day –> 500mg OD for 2 days)
chlamydia mx if pregnant
azithro, erythro, amoxicillin
contact timeline chlamydia for symptomatic men
4 weeks prior to symptoms and all after
contact timeline chlamydia for women and asymptomatic men
6 months prior
mx for chlamydia contacts
offer treatment before test comes back
what type of bactiera is chlamydia
gram -ive + intracellular
what does chlamydia serovaris A-C cause
ocular infection in africa (not an STI) // endemic trachoma
what does chlamydia serovaris D-k cause
STI // neonatal disease
what does chlamydia serovaris L1-L3 cause
Lymphogranuloma venereum
RF Lymphogranuloma venereum
MSM // HIV // tropics and developing countries
symptoms Lymphogranuloma venereum
1 = painless pustules to ulcers –> 2 painful inguinal lymph (rarely fistula) –> 3 protocolitis + rectal bleeding
mx Lymphogranuloma venereum
doxycycline
what is PID
infection and inflammation of pelvic organs
common causes PID
chlamydia most common // gonorrhoea, mycoplasma
symptoms PID
lower abdo pain // fever // deep dyspareunia // dyruria // menstrual changes // discharge
o/e PID
cervical excitation
invx PID
pregnancy // high vagial swab (often negative)
complications PID
Fitz-Hugh Curtis (perihepatitis) // infertility // ectopic
mx PID
oral ofloxacin + oral metro // IM ceftriaxone + oral doxy + oral metro
what type of bacteria is gonorrhoea
gram -ive dipplococcus
symptoms gonorrhoea
M: urethral discharge, dysuria // F: cervicitis, vaginal discharge // pharyngeal or rectal asymptomatic
complications gonorrhoea
urethral strictures // epididymitis + PID –> infertility // disseminated gonorrhoea –> septic arthritis
symptoms disseminated gonorrhoea
tenosynovitis, polyarthritis, dermatitis –> septic arthritis, endocarditis, perihepatits
invx gonorrhoea
NAATS screening // urethral in males, endocervical in women
1st line mx gonorrhoea
single IM dose
2nd line mx gonorrhoea
oral ceftriazone 400mg (single dose) + oral azithro 2g (single dose)
causes urethritis (men only)
chlamydia , gonorrhoea, ureaplasma or mycoplasma
invx urethritis
swab
mx urethritis
oral doxy 7 days OR single dose oral azithro
what causes genital chancroids
Haemophilus ducreyi
symptoms chancroid
painful genital ulcer (sharply defined) + unilateral, painful lymph nodes
incubation syphilis
trep pallidum 9-90 days
primary symptoms syphilis
painless chancre (ulcer) - may be on cervix // non-tender lymph
symptoms secondary Syphilis
(6-10 weeks later) // fever, lymph // rash on trunk, palms, soles // buccal ulcers // condylomata lata (painless warts on genitals)
tertiary symtpoms Syphilis
gummas (granuloma on skin and bone) // aortic aneurysm // paralysis of insane // argyll roberston pupil
symptoms congenital syphillis
blunted inciesors // rhagades (linear scar at mouth) // keratitis // deaf
non-trep serological sesting
non-specific // shows number of antibodies // negative after treatment // uses cardiolipin to test
trep speceific serological sesting
TP-EIA // shows reactivity
what causes false negative non-trep serology
pregnancy // SLE, APS // TB // leprosy // malaria // HIV
1st line mx syphilis
IM penicillin (doxy alternative)
what needs to be tested after treatment of syphillis
non-trep serology (RPR or VDLR) should DECREASE
what reaction is sometimes seen after syphillis testing
Jarisch-Herxheimer reaction // fever, rash, tachycardia after 1st dose // conservative mx