OBS & GYN Flashcards
Define pathological amenorrhea.
Failure to menstruate for at least 6 months.
Classification of amenorrhea?
◉ Primary amenorrhea:
◆ Lack of menstruation before the age of 15;
◆ Lack of menstruation before the age of 13 (without breast developments).
◉ Secondary amenorrhea
◆ Cessation of menstrual cycles following the appearance of it.
Causes of amenorrhea?
◉ Pregnancy
◉ Hypothalamic
* Most common
* Low BMI
* Excessive exercise
* Low GnRH ⟶ ⬇︎FSH and ⬇︎ LH ⟶ ⬇︎ oestrogen
◉ Polycystic ovarian syndrome
◉ Hyperprolactinaemia
* Pituitary tumors
* Antipsychotic agents
* Hypothyroidism
◉ Premature ovarian failure
* ⬆︎FSH levels
◉ Anatomical problems
* Usually results in primary amenorrhea
* Imperforated hymen
* Mullerian agenesis
* Asherman syndrome
◉ Thyroid problems
◉ Post-pill amenorrhea
* > 6 months amenorrhea after stopping the combined oral contraceptives
* Low-normal levels of oestrogen, FSH, LH
* Mildly raised prolactin
Anaemia of pregnancy
◉ First trimester
◆ < 110 g/L
◉ Second trimester
◆ < 105 g/L
◉ Third trimester
◆ < 100 g/L
What is the management of anaemia of pregnancy?
Ferrous sulphate.
What are the sympotms (presentation) of antiphospholipid syndrome?
- ≥ 3 unexplained consecutive miscarriages before 10 weeks gestation (1st trimester)
- ≥ 1 second trimester miscarriages
- Vascular thrombosis (arterial or venous)
What is the investigation in antiphospholipid syndrome?
- Lupus anticoagulant
- Anticardiolipin antibody
- Anti-b₂-gylcoprotein I antibody
Rx of antiphospholipid syndrome?
- Low dose AAS (75 mg)
- Heparin
What is the cause of Bacterial Vaginosis
?
◆ Gardnerella vaginalis
Symptoms of Bacterial Vaginosis
- (Homogenous) grey-white discharge
- Thin and profuse discharge
- Fishy smell (when KOH added)
- ⬇︎PH (>4.5)
Rx of Bacterial Vaginosis
- Metronidazole
- Clindamicine
➔ May resolve spontaneously
➔ High recurrence rate
OBS & GYN
What are the main risks for cervical cancer?
◆ HPV (Human papillomavirus)
(HPV 16, 18, 31 and 33).
- Multiple sexual partners
- Smoking
- Immunossupression
- Combined oral contraceptives pills (they don’t wear condoms)
Management of pathological CTG
◉ Conservative management
◆ Most initial / appropriate:Change mothers position
◆ Start intravenous fluids
◉ Expedite delivery
Describe the presentation of ectropion
➔ The ectocervix (the vaginal part of the cervix) is lined by stratified squamous epithelium
.
➔ The endocervix (the bit inside the uterus) is lined with columnar epithelium
➔ The columnar epithelium (marches over) migrates to the outside covering the ectocervix.
What is the cause of ectropion?
⬆︎ leves of oestrogen
- Pregnancy
- COCP
- Ovulation phase in young women
Sympotms of ectropion
- Ussually asymptomatic
- Post-coital bleeding
- Non purulent discharge
Rx of ectropion
If not bleeding, no therapy
* Stop COCP
- Silver nitrate (ablation)
* Cryotherapy
* Diathermy (ablation)
What organisms cause cervicites
?
- Chlamydia
- Neisseria gonorrhoeae
Symptoms of cervicites
- Usually asymptomatic
- Vaginal discharge
- Lower abdominal pain
- Intermenstrual bleeding
- Post coital bleeding
Regarding the following test:
Vulvovaginal swab for Nucleic Acid Amplification Test (NAAT)
When is this test performed (to diagnose what conditions
)?
- Chlamydia
- Gonorrhoea
How is the diagnosis of cervicites
made?
Step 1
- Vulvovaginal swab NAAT
—> If positive for gonorrhoea then step 2:
Step 2
- “Endocervical swab” & ‘high vaginal swab’ for culture
What is the investigation done in Ectropion
?
- Colposcopy: red ring around the cervical os.
What is the organism that causes chickenpox
?
Varicela zoster virus.
Describe the (infectious) risk period for neonatal varicella
.
If the mother develops chickenpox:
- 7 days before given birth
- 7 days after given birth
—> IVIG given to neonate.