(4.1&2) Infections & PID Flashcards
What are the names given to:
Inflammation of anus & rectal mucous?
Infection of ovaries
infection of Fallopian tubes
- Proctitis = inflammation of anus & rectal mucous
- Oophoritis = infection of ovaries
- Salpingitis = infection of Fallopian tube
Why are mixed STI common?
- Mostly asymptomatic & long term
- Pathogens transmit in the same way
- Common risk behaviours and factors
Why are the antibiotics prescribed for STIs have short duration with vey low side effect profile?
The groups most at risk are noted for their poor compliance
What are the morbidity associated with STI?
- Pelvic Inflammatory Disease
- Infertility
- Reproductive cancers
- Infection with blood-borne viruses
- Congenital/peripartum infection of neonate
Why the incidence of STIs are increasing?
increased incidence due to
- more awareness of symptoms
- greater GUM presence and so attendance
- better treatment regimes so more complacence
- improved screening/diagnosis
Why are most antibiotic regimes (especially gonorrhoea) given alongside Doxycycline or Azithromycin?
Co-infection with chlamydia trachomatis is common
What is the pathogenic cause of chlamydia? What type of pathogen is it?
Chlamydia trachomatis
Gram -ve
Obligate intracellular bacteria
How is chlamydia infection presented clinically? What complication can a chlamydia infection cause?
Chlamydial urethritis - dysuria & frequency & discharge
pelvic inflammatory disease -> Fitzhugh-curtis syndrome -> perihapatitis -> RUQ pain
How is chlamydia diagnosed and managed?
- Diagnosis: Endocervical (females) + urethral (males) swabs
- Antibiotics: Doxycycline & Azithromycin
What is the pathogenic cause of gonorrhoea? What type of pathogen is it?
- Neisseria gonorrhoeae
- Gram -ve intracellular diplococcus
How does gonorrhoea present clinically?
- Gonococcal urethritis - dysuria & frequency & discharge
- Reddening
- Pelvic inflammatory disease
How is gonorrhoea diagnosed and managed?
- Diagnosis: Endocervival swab/smear & culture
- Management: Ceftriaxone intramuscular injection
What is the most COMMON pathogenic cause of genital herpes? What type of pathogen is it?
- Herpes simplex Type A
- Encapsulated, double stranded DNA
How is genital herpes presented clinically?
- painful ulceration
- dysuria
- inguinal lymphadenopathy (abnormal sized lymph nodes)
What is the pathogenic cause of genital warts? What type of pathogen is it?
- Human papilloma virus
- small, double stranded DNA virus
What are the possible differential diagnosis of dysuria, frequency, discharge from genitalia?
- gonococcal urethritis
- chlamydial urethritis
- non-specific urethritis
- non-infectious urethritis
What are the possible differential diagnosis of genital skin and mucous membrane lesions?
- Herpes simplex
- Human papillomavirus
- Genital papules
- Syphilis
Which are the most common types of HPV infection? What morbidity is it associated with? What intervention is taken?
- HPV 16 &18
- High risk of cervical cancer
- HPV vaccines are offered to girls aged 12-13 - 2 injections within a year
What is the prognosis of Syphilis?
ulcer -> latent -> granulomatous lesion
Genital warts frequently spontaneous resolve. However if a squamous cell papilloma developed, how is it managed?
- Topical Podophyllin
- Cryotherapy (freeze them off)
- Intralesional interferon
How is Syphilis diagnosed and managed?
- Diagnosis: dark field microscopy & serology
- Management: Penicillin
What is the pathogenic cause of trichomonas vaginalis? How is it presented clinically? How can it be managed?
- Flagellated protazoan
- Thin, frothy, offensive discharge
- Metronidazole
What are the risk factors of Candida albicans causing non-venereal genital infections? What infection is it?
- oral contraception, antibiotics, steroids, pregnancy -> changes to vaginal environment -> imbalanced normal flora -> Candida albicans overgrowth
- Causing Vulvovaginal candidiasis (vaginal thrush)
How does vaginal thrush present clinically? How is it diagnosed and managed?
- Profused, white, curd-liked discharge & vaginal itch & erythema
- Diagnosed: high vaginal smear
- Management: Topic Azoles or Oral Fluconazole