Gynaecology Flashcards
What phase of the menstrual cycle does PMS affect?
Luteal phase
Premenstrual dysphoric disorder affects what 2 areas?
Physical (breast tenderness) and emotional (irritability)
3 recommendations to manage PMS
- Adopt a healthy balance lifestyle
- Continuous use of COCP
- Antidepressants
Menorrhagia refers to
> 80 ml of blood loss per month - this may be due to excessive volume or excessive duration > 1 week
3 different questions to ask to categorise ‘very heavy periods’
- How long does it take you to fill a sanitary towel? - 1-2 hours
- Bleeding lasting > 7 days
- Passing large clots
5 causes of menorrhagia
- Lack of ovulation: PCOS, hypothyroidism
- Structural: Endometriosis, leiomyomas, polyps.
- Pregnancy complication: Miscarriage
- Coagulopathies
- Iatrogenic: Anticoagulant, copper IUD
3 disorders to rule out on bloods when a patient has menorrhagia
- Anaemia (iron studies)
- Hypothyroidism (TFT)
- Coagulation screening (thrombophilia)
Management of heavy periods (4 points)
- No pain: Tranexamic acid to reduce blood loss
- Pain: Mefenamic acid (NSAID)
- Contraceptives: Particularly levonorgestrel IUD (Mirena) or POP
- Surgery: Endometrial ablation if finished having children, hysterectomy
What type of drug is tranexamic acid and what is its MOA?
Antifibrinolytic that blocks conversion of plasminogen to plasmin, thus prevents fibrin degradation
Investigations for menorrhagia
- Bloods: Rule out anaemia, thyroid disorders, coagulopathies
- Swabs: Rule out infection
- Pelvic/transvaginal ultrasound: Rule out polyps, cancer
- Hysteroscopy
Dysmenorrhoea refers to
Painful menstruation with or without pelvic pathology
Primary dysmenorrhoea refers to
Painful periods in absence of pelvic pathology
Primary dysmenorrhoea is most common in
First year after menarche as ovulation becomes established
Secondary dysmenorrhoea refers to
Pain many years after the menarche, during menstruation or in the luteal phase, due to pelvic pathology
5 causes of secondary dysmenorrhoea
- PID
- Endometriosis
- Leiomyoma
- Polyps
- Adenomyosis
Difference between primary and secondary dysmenorrhoea
Primary dysmenorrhoea is in the absence of pelvic pathology, often in 1st year post menarche.
Investigations for dysmenorrhoea
- Bloods
- STI test
- Urinalysis
- Pelvic/transvaginal ultrasound
- Laparoscopy/hysteroscopy
Amenorrhoea refers to
Transient/permanent absence of menstrual flow
Primary menorrhoea refers to
Absence of menarche by 13 years with no pubertal maturation or by 15 years with appropriate secondary sexual characteristics
Secondary amenorrhoea refers to
Lack of menses in a non-pregnant female for < 3 cycles of previous interval or < 6 months if previously having irregular periods
4 causes of primary dysmenorrhoea
- Family history of delayed periods
- Structural pathology: FGM, imperforate hymen
- Turner’s Syndrome (XO)
- Hypogonadotropic hypogonadism (Kallman Syndrome - reduced/absent smell), damage to gonads (mumps, cancer)
5 causes of secondary dysmenorrhoea
- Pregnancy
- Menopause/premature ovarian failure
- Hormonal contraception
- Hypogonadotropic hypogondadism (reduced GnRH) secondary to weight loss/excess exercise/chronic disease/stress
- PCOS
Investigations for secondary dysmenorrhoea
- HCG urine test
- Measure LH/FSH or FSH:LH ratio - high LH or high LH:FSH = PCOS
- Measure TFT
- Measure androgens
- MRI for pituitary tumours (hyperprolactinaemia)
Menopause is defined as
Cessation of menses for < 12 months without a reason such as pregnancy/hormone therapy/premature menopause