Gynaecology Conditions 1 Flashcards
Define abnormal uterine bleeding?
Any bleeding that is either:
• Abnormal in volume (excessive duration or heavy)
• Irregularity, timing (delayed or frequently)
• Non-menstrual bleeding – IMB, PCB, PMB
Define amenorrhoea?
Absence of menstruation
Define primary amenorrhoea? When to suspect it?
Failure to start menstruating
Suspect and assess when girls have not established menstruation by age of 13 (if no secondary sexual characteristics) or 15 (if normal secondary sexual characteristics)
Causes of primary amenorrhoea?
- Often due to late puberty (familial)
- May be pregnant
- Structural abnormalities of external/internal genitalia
- Hypothalamic-Pituitary-Ovarian causes (common)
- Hyperprolactinaemia
- Ovarian causes:
- Uterine causes:
- Turner’s syndrome or androgen insensitivity syndrome
What causes HPO problems in primary amenorrhoea?
o Stress, emotions, exams, increased exercise, weight loss
Causes of hyperprolactinaemia in primary amenorrhoea?
o May have galactorrhoea
o Thyroid problems
o Renal failure
Causes of ovarian failure in primary amenorrhoea?
o PCOS
o Ovarian insufficiency/failure
Causes of uterine causes of primary amenorrhoea?
o Pregnant
o Asherman’s syndrome (uterine adhesions after D&C)
o Post-pill amenorrhoea
Define secondary amenorrhoea?
Previous normal menstruation but stops for 3-6 months or more, 6-12 months in women with irregular periods
Causes of secondary amenorrhoea?
- Physiological
- Hypothalamic-Pituitary-Ovarian causes (common):
- Hyperprolactinaemia
- Ovarian causes:
- Uterine causes:
Physiological causes of secondary amenorrhoea?
o Pregnancy
o Menopause
o During lactation
HPO causes of secondary amenorrhoea?
o Stress, emotions, exams, professional athletes, increased exercise, weight loss
Hyperprolactinaemia causes of secondary amenorrhoea?
o May have galactorrhoea
o Thyroid problems
o Renal failure
Ovarian causes of secondary amenorrhoea?
o PCOS
o Ovarian insufficiency/failure
Secondary to chemotherapy, radiotherapy or surgery
Genetic disorders – Turner’s
Uterine causes of secondary amenorrhoea?
o Asherman’s syndrome (uterine adhesions after D&C)
o Post-pill amenorrhoea
Tests in amenorrhoea?
BhCG to exclude pregnancy
Serum free androgen index (PCOS)
FSH/LH (low if HP axis cause)
• If FSH>20IU/L – premature menopause – karyotyping
Prolactin (Increased by stress, hypothyroidism, prolactinomas, metoclopramide)
• If >1000IU/L – MRI scan
TFTs
Testosterone levels
• >5nmol/L indicate androgen secreting tumour or late-onset CAH
Treatment of amenorrhoea?
Related to cause
Refer to secondary care for specialist investigations
Treatment of amenorrhoea if mild HPO malformation?
o Medroxyprogesterone acetate (10mg/24h for 10 days) challenge will stimulate endometrium production and cause period
o Reassurance and diet advice, stress management
o Psychiatric help if depression indicated
o Still use contraception as ovulation may occur at any time
o Clomifene – restores period in mild cases
Treatment of amenorrhoea if shut-down HPO malformation?
o Stimulation by gonadotrophin-releasing hormone (goserelin)
o Used in specialist fertility clinics only
Treatment of amenorrhoea if premature ovarian failure?
Premature ovarian failure needs HRT and pregnancy can be achieved using IVF or oocyte donation
Complications of amenorrhoea?
Osteoporosis • May need Vit D and Ca supplements • Offer HRT or COCP if needed CVD Infertility Psychological stress
Define olgimenorrhoea? Most common cause?
o Menses occurring less frequently than every 35 days
o More common in extremes of reproductive life
o Common cause is PCOS
Define menorrhagia? How common?
o Excessive menstrual blood loss which interferes with QoL, social or emotional life
o Defined as >80ml/cycle but impossible to measure
o 30% of women report heavy periods
Causes of menorrhagia?
Dysfunctional uterine bleeding (DUB)
Anovulatory cycles
IUCD
Pathological causes
Dysfunction uterine bleeding causing menorrhagia?
- No pathology, 40-60%
* Diagnosis of exclusion
Anovulatory cycles causing menorrhagia?
• Extreme reproductive life
Pathological reasons causing menorrhagia?
Polyp
Adenomyosis
Leiomyoma
Malignancy
Coagulopathy Ovulatory dysfunction Endometrial Iatrogenic Not classified
Iatrogenic reasons causing menorrhagia?
IUCD
Key history pieces in menorrhagia history?
Note cycle bleeding and length
• Heavy, prolonged vaginal bleeding
Change in volume (clots, floods, etc)
Worsening impact on life – school, work, home, sexual
Enquire about other symptoms: premenstrual syndrome, IMB, PCB, dyspareunia, pelvic pain
Signs in menorrhagia?
Anaemia Abdomen exam • Masses Ensure smear up to date Inspect cervix and take swabs if needed If indicated bimanual examination
Investigations in menorrhagia?
Pregnancy test Bloods – FBC, (TFTs, clotting (if indicated)) Smear if due & STI screen USS Hysteroscopy Endometrial sampling
When to refer to secondary care in menorrhagia? Investigations?
• Criteria
o Persistent IMB
o Symptoms failed to improve on medical management
o Women >45 with heavy bleeding, endometrial pathology
o Abnormal examination
o Risk factors for endometrial cancer
• TVUS and hysteroscopy if abnormal
1st line medical management of menorrhagia?
Mirena IUS
Release levonorgestrel – leading to atrophy of endometrium
Reduces bleeding and 30% amenorrhoeic at 12 months
SE – irregular bleeding for 1st 4-6 months and progestogenic effects
2nd line medical management of menorrhagia?
NSAIDs (mefenamic acid)
Taken during days of bleeding
Tranexamic Acid
Useful in those trying to conceive as non-hormonal
CI – thromboembolic disease
COCP
Effective but think CIs
3rd line medical management of menorrhagia?
Progestogens
Medroxyprogesterone acetate (IM every 12 weeks)
Norethiserone PO (Used short-term to stop heavy bleeding)
GnRH rarely used, only in secondary care
When to use surgical management of menorrhagia?
2 drugs tried and failed
Surgical management of menorrhagia? When performed? SE?
Endometrial ablation
o 1st line, if uterus is <10 weeks of gestation on palpation
o Removing the full thickness of endometrium with superficial myometrium and basal glands using diathermy/thermal balloon
o Performed with hysteroscopy
o SE – bleeding, infection, uterine perforation, vaginal discharge, infertility
o Need contraception post-operation
Alternative surgical managements and when performed?
Uterine Artery Embolisation or Myomectomy
o If uterus is >10 weeks in size or fibrois >3cm, retain ferility
Hysterectomy
o Women not wishing to retain fertility, who have fibroids >3cm
o Vaginal hysterectomy preferred, may need abdominal
Define dysmenorrhoea? How common?
o Low anterior pelvic pain, occurring with periods
o 50% women complain of moderate pain, 12% of severe
Pathology of dysmenorrhoea?
Imbalance of prostaglandins and leukotrienes in menstrual fluid which produces vasoconstriction and uterine contractions
May be responsible for diarrhoea, nausea and headache