Chlamydia Infection

Last updated 13.02.13

 

Definition

-  Common STI caused by Chlamydia trichomatis

 

Features

-  Most common STI in Australia

-  Transmitted via vaginal, anal or oral intercourse

-  Annual universal screening recommended once sexually active until 29yrs old (men & women) then selectively

 

Causes

-  Chlamydia trichomatis

 

Risk Factors

-  <25yrs old

-  Partner with STI or S/S of

-  No condom use

-  New partner in last 12 months

 

Associated S/S

-  85% asymptomatic

-  Males more likely to show S/S than females

-  Females

-  Vaginal discharge

-  Dysuria

-  Intermenstrual bleeding

 

Complications

-  PID

-  Infetility

-  Chronic pelvic pain

-  In pregnancy

-  Increased risk of ectopic pregnancy

-  Preterm labour

-  PROM

-  Post partum endometritis (PID)

-  Fetal effects

-  Pneumonia, pneumonitis

-  Trichoma conjunctivitis

 

Ix

-  Sexual history

-  First pass urine: Chlamydia PCR +/- Gonorrhoea

-  Urethral & endocervial swabs: Chlamydia PCR (+/- Gonorrhoea)

-  Consider other STI Screening

 

Mx

-  Notifiable disease

-  Contact tracing

-  Handout from ASHM

-  Antibiotics

-  Azithromycin 1g PO single dose

-  Or Doxycycline 100mg PO BD 7/7

-  F/U repeat test 3/12 to ensure no reinfection

-  In pregnancy

-  Azithromycin 1g PO single dose

-  Test of cure 3/52 after Abx

 

 

 

References

 

ctm.ashm.org.au/images/pdf/chlamydia_patient_handout.pdf