Lecture 10 - Infections Of The Repro Tract Flashcards
What are some important STIs?
Chlamydia
Gonorrhoea
Trichomoniasis
Genital Herpes
Genital Warts
Syphilis
HIV
What are 2 non STI reproductive tract infections?
Thrush (candidia albicans)
Bacterial Vaginosis
Who are more likely to get STIs, young or old people?
Young
What ethnic group has a risk of STIs?
Black afrocarribean
What are some risk factors for developing an STI?
Not using protection
Multiple sexual partners
Certain sexual practices
Sex workers
Early age first intercourse
Lack of immunisation
Being young
What is the main symptom of STIs?
Discharge
Men = urethral
Women = vaginal
Can vaginal discharge be normal?
Can urethral discharge be normal?
Vaginal discharge be normal
Urethral discharge in men never normal
What does physiological vaginal discharge look like?
White or clear non offensive discharge
What is the causative organism for Vaginal Thrush?
Candida albicans
How does vaginal thrush infect a patient?
Candida albicans is normal vaginal flora but it gets “activated/overgrows” in immunocompromised states, diabetes or after antibiotics
High oestrogen favours it
What increases the risk of developing of Vaginal Thrush/Candida albicans infection?
Immunocompromised
Diabetes (High sugar)
Post antibiotics (dec normal flora)
High oestrogen (combined oral contraceptive pill)
What are the symptoms of Candida albicans?
Vulval/vaginal itching
White NON SMELLY cheese like vaginal discharge
Painful intercourse
Pain on urination
What is the term for painful intercourse?
Dyspareunia
What is the term for painful urination?
Dysuria
How would you treat candidia albicans?
Antifungals:
Fluconazole
Clotrimazole
Given straight into vagina (Pessary)
What is the main causative organism for bacterial vaginosis?
Gardnerella vaginalis
What are the main risk factors for developing Bacterial Vaginosis?
Vaginal washes/douching
Receiving oral sex
Smoking
What is the basic reason bacterial vaginosis develops?
Normal flora is overgrown by the anerobic orgaisms like Gardnerella vaginalis
Lactobacilli no longer around maintaining low pH
What type of cells are seen on a gram stain for bacterial vaginosis?
Clue cells
What are the symptoms of bacterial vaginosis?
Fishy smelling thin white discharge
What is the treatment for bacterial vaginosis?
Oral metronidazole
Clindamycin gel
What is the most common discharge causing STI?
Chlamydia trachomatis
What type of organism is chlamydia trachomatis?
Obligate Intracellular bacterium with a unique cell WALL
Why cant chlamydia trachomatis be gram stained?
Has a unique cell wall
It also prevents phagolysosome fusion
What are the symptoms of Chlamydia in women?
70% asymptomatic
Inc/smelly discharge
Postcoital or intermentstrual bleeding
Deep dyspareunia
Dysuria
What are the symptoms of chlamydia in men?
50% asymptomatic
Urethral discharge + urethritis
Dysuria
Epididymitis
What type of organism is Neisseria Gonorrhoeae?
Gram negative diplococci
what colour do gram negative bacteria stain?
Red
What are the symptoms of Neisseria Gonorrhoeae infection in men?
90% men symptomatic
Thick yellow discharge
Often dysuria
What are the symptoms of Neisseria Gonorrhoeae infection in women?
50% asymptomatic
Dysuria
Inc/altered discharge
Dyspareunia
Lower abdominal pain
Intermenstrual bleeding
What do you treat if you suspect Chlamydia Trachomatis or Neisseria Gonorrhoeae?
Treat for both even if you only suspect 1
What 2 antibiotics are given to treat bacterial STIs (Neisseria Gonorrhoeae or Chlamydia Trachomatis)?
Azithromycin
Ceftriaxone
What organism causes Trichomoniasis?
Trichomonas vaginalis
(Protozoa)
How does Trichomoniasis present in women?
Thick very smell frothy discharge and lots of it
Itching (way you can differentiate this from bacterial vaginosis is that BV doesn’t have itching)
What conditions does Trichomoniasis best develop in?
Alkaline conditions in vagina
How does trichomoniasis present in men?
Urethritis which then has discharge
What is the treatment for Trichomoniasis?
Metronidazole
What is non-gonococcal urethritis in men?
Inflammation of the urethra with associated discharge that’s not caused by gonorrhoea
What are the common causes of non-gonococcal urethritis in men?
Chlamydia trichomatis
Trichomonas vaginalis
Mycoplasma gentialium
But can also be pathogen negative
What investigations are done in men when theres a disease causing discharge?
Urine sample or swab of discharge
Once a urine sample has been obtained from a man, what tests are usually done?
NAATs (Nucleic Acid Amplification Test) basically a PCR
What are the 3 types of vaginal swab that can be done to investigate diseases causing discharge?
High vaginal swab
Endocervical swab
Vulvovaginal swab (self swab)
What infections is a high vaginal swab testing for?
Trichomonas
Candida
Bacterial Vaginosis
What do both endocervical and vulvovaginal swabs test for?
Chlamydia
Gonorrhoea
Why is a vulvovaginal swab more favourable to an endocervical swab?
Vulvovaginal swab is done by the patient so more likely to actually have the swab done
What are the infections that can cause discharge?
Chlamydia (trichomatis)
(Neisseria) Gonorrhoeae
Trichomoniasis vaginalis
Bacterial vaginosis
Candidia albicans (thrush)
What are the 3 STIs causing discharge in women?
Chlamydia
Gonorrhoea
Trichomoniasis
What are the 2 non STI infections causing discharge in women?
Bacterial vaginosis
Candidia albicans
What are the 3 conditions causing genital lesions?
HPV
Herpes simplex virus 1 and 2
Syphilis
What causes Genital warts?
HPV (Human Papillomavirus)
Which 2 HPV viruses cause most genital infections?
HPV 6
HPV 11
Which 2 HPV viruses cause the most cervical cancer?
HPV 16
HPV 18
What HPV viruses does the Gardasil vaccine protect against?
HPV 6,11,16,18
What virus causes genital lesions?
Herpes Simplex Virus 1 and 2
Which Herpes simplex virus causes cold sores an genital lesions?
HSV 1
What herpes simplex virus only causes genital lesions?
HSV 2
What is a HSV infection like?
Lifelong infection, get initial then recurrent (first infection is worst)
What are the symptoms or HSV infection?
Can be aymptomatic initially
Ulcers and blisters (genital, mouth and anus)
Systemic symptoms
How do you test for HSV?
PCR/NAAT following a swab
How is HSV treated?
Acyclovir (antiviral)
Doesn’t eradicate infection just reduces severity
What is the causative organism of syphilis?
Treponema pallidum
What type of organism is treponema pallidum (cause of syphilis)?
Coiled shaped bacteria (spirochete)
What are the types of syphilis?
Primary syphilis
Secondary syphilis
Tertiary syphilis
How does primary syphilis present?
Typically a single painless ulcer
Why is syphilis often dangerous?
Normally goes undiagnosed for a while so progresses to secondary and tertiary syphilis leading to neurological and cardiovascular damage
How is syphilis treated?
Penicillin
Why are coinefctions common with STIs?
All transmitted the same way
Some often asymptomatic
How are patients educated when treating STIs?
Use protection
Reduce number of sexual partners
Avoid sex until course of treatment is complete
How are non STI infections managed?
Appropriate drugs (metronidazole)
Remove precipitating features
Patient education (vaginal hygiene)
What is pelvic inflammatory disease?
Infection of the upper genital tract
What are some of the pelvic inflammatory diseases?
(Infections seceding from the endocervix)
Endometritis
Salpingitis
Parametritis
Oophoritis
Tubo-ovarian abscess
Pelvic peritonitis
What is salpingitis?
Inflammation of the fallopian tubes
What is parametritis?
Inflammation of pelvic floor fascia
What is oophoritis?
Infection of ovaries
What is a tubo-ovarian abscess?
Collection of infection around the tubes
What is the main cause of Pelvic Inflammatory Disease?
STIs
Chlamydia trichomatis
Neisseria Gonorrhoeae
Mycoplasma gentialium
What are the symptoms of Pelvic Inflammatory disease?
Pelvic/lower abdominal pain
Discharge
Post goital/Intermenstrual bleeding
Fever
Dyspareunia
RUQ pain due to peri hepatitis (Fitz-Hugh-Curtis syndrome)
2ndary dysmenorrhoea
What are the signs of PID?
Lower abdominal tenderness
Adnexal (low down in pelvis) tenderness
Pain when moooved uterus on bimanual vaginal exam
Discharge on speculum exam
Fever
What are some complications of PID?
Sepsis
Peritonitis
Chronic pelvic pain
Infertility (adhesions blocking tubes)
Ectopic pregnancy
Fitz-Hugh-Curtis syndrome caused by peri-hepatitis
How is PID managed?
Admit if unwell since risk of sepsis (peritonitis , fever etc…)
Antibiotics
What antibiotics are used to treat pelvic inflammatory disease?
What dose and time period?
Ofloxacin 400mg twice per day
Metronidazole 400mg twice per day
Both for 14 days