Gonorrhoea Flashcards
Define gonorrhoea.
Gonorrhoea is any manifestation of infection by N gonorrhoeae. Aside from causing infection in the lower genital tract, it can also cause conjunctivitis and severe disseminated infections, especially if acquired congenitally.
How common is gonorrhoea?
Gonorrhoea is the second most common bacterial STI worldwide
M>F
Usually 15-49yrs
What is the incubation period of gonorrhoea?
2-5 days
Can you get reinfected with gonorrhoea?
Immunisation is not possible and reinfection is common due to:
- Antigen variation of type IV pili (proteins which adhere to surfaces) AND
- Opa proteins (surface proteins which bind to receptors on immune cells)
What are the clinical features of gonorrhoea in males and females?
- males: urethral discharge, dysuria, prostate/testis tenderness
- females: cervicitis/cervical friability e.g. leading to vaginal discharge, pelvic pain,
- rectal and pharyngeal infection is usually asymptomatic
What are the complications of gonorrhoea?
- Urethral strictures
- Epididymitis
- Salpingitis - hence infertility
- Ectopic pregnancy
- Disseminated infection
- Septic arthritis - gonorrhoea is the most common cause of this in young people
- Endocarditis
- Fitz-Hugh-Curtis syndrome - perihepatitis; mimics acute cholecystitis in its presentation
- Blindness - complication of ophthalmia neonatorum
What is the management of gonorrhoea?
Ceftriaxone 1g IM once (no longer adding azithromycin according to BASHH guidelines) - same for pregnant women
OR PO ciprofloxacin 500mg once if sensitivities are known
NB: Cephalosporins are more widely used than ciprofloxacin now as there is 36% resistance to ciprofloxacin in the UK
What are the main features of disseminated gonococcal infection?
- Tenosynovitis
- Migratory polyarthritis
- Dermatitis (maculopapular or vesicular)
Where does arthritis usually occur in gonococcal polyarthritis?
wrists, ankles, and small joints of hands and feet
What are the risk factors for gonorrhoea?
- Age 20-29yrs
- MSM
- Current or prior history of STI
- Multiple recent sexual partners
- Inconsistent condom use
What is the management of ophthalmia neonatorum?
Ceftriaxone 25-50mg/kg IV/IM single dose
OR cefotaxime 100mg/kg IV/IM single dose