Gynaecology Flashcards
Definition primary amenorrhoea
Failure to establish menstruation by;
- 15 if normal secondary sexual characteristics
- 13 if no secondary sexual characteristics
Definition secondary amenorrhoea
Cessation of menstrual for;
- 3-6 months in women with previously normal mensus
- 6-12 months in women with oligomenorrhoea
Causes primary amenorrhoea
- Gonadal dysgenesis
- Testicular feminisation
- Congenital malformations of the genital tract
- Functional hypothalamic amenorrhoea
- Imperforate hymen
Causes secondary amenorrhoea
- Hypothalamic amenorrhoea
- PCOS
- Hyperprolactinaemia
- Premature ovarian failure
- Thyrotoxicosis
- Sheehan’s syndrome
- Asherman’s syndrome
Cause functional hypothalamic amenorrhoea
Anorexia
Cause hypothalamic amenorrhoea
Secondary stress
Excessive exercise
What is Asherman’s syndrome
Intrauterine adhesions
Initial investigations primary amenorrhoea
- Exclude pregnancy
- FBC, U&E
- Coeliac screen
- TFTs
- Gonadotrophins
- Prolactin
- Androgen
- Oestradiol
Interpretation gonadotrophins in amenorrhoea
Low levels = hypothalamic cause
Raised levels = ovarian problem
Cause of amenorrhoea with raised androgen levels
PCOS
When is HRT useful in primary amenorrhoea
With primary ovarian insufficiency due to gonadal dysgenesis, e.g. Turners - prevents osteoporosis
What is androgen insensitivity syndrome
End-organ resistance to testosterone causing genotypically male children to have female phenotype
Inheritance androgen insensitivity syndrome
X-linked recessive
Features androgen insensitivity syndrome
Primary amenorrhoea
Little or no axillary and pubic hair
Undescended testes causing groin swellings
Diagnosis androgen insensitivity syndrome
Buccal smear or chromosomal analysis to reveal 46XY genotype
Testosterone levels in androgen insensitivity syndrome
After puberty, high-normal to slightly elevated for reference range for postpubertal boys
Management androgen insensitivity syndrome
- Counselling - raise child as female
- Bilateral orchidectomy (increased risk of testicular cancer due to undescended testes)
- Oestrogen therapy
Presentation atrophic vaginitis
- Vaginal dryness
- Dyspareunia
- Occasional spotting
First line treatment atrophic vaginitis
Vaginal lubricants and moisturisers
Second line treatment atrophic vaginitis
Topical oestrogen cream
Most common type of cervical cancer
Squamous cell
Symptoms cervical cancer
- Abnormal vaginal bleeding - postcoital, intermenstrual, postmenopausal
- Vaginal discharge
What serotypes HPV highest risk for cervical cancer
16, 18, 33
Other risk factors cervical cancer
- Smoking
- HIV
- Early first intercourse, many sexual partners
- High parity
- Lower socioeconomic status
- COCP
What kind of cervical cancer often not detected by screening
Adenocarcinoma
Screening age and frequency cervical cancer
25-49 - 3 yearly
50-64 - 5 yearly
In Scotland, 25-64 every 5 years
Can women over 65 be screened for cervical cancer?
No
Cervical screening in pregnancy
Usually delayed until 3 months post-partum unless missed screening or previous abnormal smears
Cervical screening if never sexually active
Very low risk, so may wish to opt out of screening
Management cervical screening if negative HPV
Return to normal recall
Management cervical screening with positive HPV with abnormal cytology
Colposcopy
Management cervical screening with positive HPV and normal cytology
Repeat in 12 months
Management cervical screening - first repeat test after positive HPV and normal cytology
If now HPV negative, return to normal recall
If still HPV +ve and cytology still normal - repeat test 12 months later
Management cervical screening - second repeat test after positive HPV and normal cytology
If negative - return to normal recall
If positive - colposcopy
Management cervical screening if sample inadequate
Repeat sample in 3 months
If 2 consecutive inadequate samples - colposcopy
Follow up patients treated for CIN
Screen 6 months after treatment - test of cure
Treatment CIN
Large loop excision of transformation zone
Cause delayed puberty with short stature
Turner’s syndrome
Prader-Willi syndrome
Noonans syndrome
Cause delayed puberty with normal stature
Polycystic ovarian syndrome
Androgen insensitivity
Kallmans syndrome
Klinefelters syndrome
What is primary dysmenorrhoea
Painful periods with no underlying pelvic pathology
Features primary dysmenorrhoea
- Pain typically starts just before or within few hours of period starting
- Suprapubic cramping, may radiate to back or down thigh
First line management dysmenorrhoea
NSAIDs, e.g. mefenamic acid, ibuprofen
Second line management dysmenorrhoea
COCP
When does primary dysmenorrhoea usually develop
Within 1-2 years of menarche
When does secondary dysmenorrhoea develop
Many years after menarche
When does the pain start secondary dysmenorrhoea
3-4 days before the onset of period
Causes secondary dysmenorrhoea
- Endometriosis
- Adenomyosis
- PID
- Copper coil
- Fibroids
Management secondary dysmenorrhoea
Refer gynae for investigation
Features ectopic pregnancy
- 6-8 weeks amenorrhoea
- Lower abdominal pain - usually constant, may be unilateral
- Vaginal bleeding - usually less than normal period, may be dark brown
- Dizziness, fainting, or syncope
Features of peritoneal bleeding in ectopic pregnancy
- Shoulder tip pain
- Pain on defecation/urination
Abdominal findings ectopic pregnancy
Abnormal tenderness
Cervical excitation
What suggests an ectopic pregnancy in pregnancy of unknown location
Serum bHCG >1500R
Risk factors ectopic pregnancy
- Damage to tubes, e.g. PID, surgery
- Previous ectopic
- Endometriosis
- IUCD
- Progesterone only pill
- IVF
Investigation of choice ectopic pregnancy
Transvaginal USS
What happens in expectant management ectopic pregnancy
Close monitoring over 48 hours - if hCG rise or symptoms manifest, intervention
Criteria for expectant management ectopic pregnancy
- Size <35mm
- Unruptured
- Asymptomatic
- No fetal heartbeat
- hCG <1,000
Criteria medical management ectopic pregnancy
Size <35mm
Unruptured
No significant pain
No fetal heartbeat
hCG <1,5000
Willing to attend FU
Indications surgical management ectopic pregnancy
- Size <35mm
- Ruptured
- Pain
- hCG >5000
What management options for ectopic pregnancy are compatible with another intrauterine pregnancy
Expectant or surgical
First line surgical option ectopic pregnancy
Salpingectomy
When to consider salpingotomy ectopic pregnancy
Risk factors for infertility, e.g. contralateral tube damage
Limitation of salpingotomy
1/5 patients need further treatment (methotrexate +/- salpingectomy)
Risk factors endometrial cancer
- Excess oestrogen (nulliparity, early menarche, late menopause), unopposed oestrogen
- Metabolic syndrome - obesity, diabetes, PCOS
- Tamoxifen
- Hereditary non-polyposis colorectal cancer
Protective factors endometrial cancer
- Multiparity
- COCP
- Smoking
Features endometrial cancer
- Bleeding - postmenopausal, menorrhagia, intermenstrual bleeding
- Pain uncommon (signifies extensive disease), vaginal discharge unusual
Referral endometrial cancer
All women ≥55 with postmenopausal bleeding
First line investigation endometrial cancer
Transvaginal ultrasound - normal endometrial thickness (<4mm) has high neg predictive value
Investigation if USS suspicious endometrial cancer
Hysteroscopy with endometrial biopsy
First line management endometrial cancer
Surgery
Localised disease - total abdo hysterectomy with bilateral salpingo-oophrectomy
High risk - post-op radiotherapy
Treatment endometrial cancer in women not suitable for surgery
Progesterone therapy
Features endometriosis
Chronic pelvic pain
Secondary dysmenorrhoea
Deep dyspareunia
Subfertility
Urinary symptoms - dysuria, urgency, haematuria
Dyschezia
Pelvic examination findings endometriosis
Reduced organ mobility
Tender nodularity in posterior vaginal fornix
Visible vaginal endometriotic lesions
Investigation endometriosis
Laparoscopy
First line treatment endometriosis
NSAIDs and/or paracetamol
Second line treatment endometriosis
COCP or progestogens, e.g. medoxyprogesterone acetate
Referral endometriosis
- Diagnostic uncertainty
- Failure of second line management
- If fertility a priority
Secondary care treatments endometriosis
- GnRH analogues
- Surgery
SEs GnRH analogues in endometriosis
Induce a ‘pseudomenopause’ due to due oestrogen levels
Management endometriosis if trying to conceive
Laparoscopic excision or ablation of endometriosis plus adhesiolysis
Ovarian cystectomy
Definition menorrhagia
Total blood loss >80ml/menses
Menorrhagia causes
- Dysfunctional uterine bleeding (no underlying pathology)
- Anovulatory cycles
- Uterine fibroids
- Hypothyroidism
- Copper coil
- PID
- Bleeding disorders, e.g. VWD
Indications for transvaginal ultrasound scan in menorrhagia
Symptoms suggesting structural or histological abnormality:
- Intermenstrual or postcoital bleeding
- Pelvic pain
- Pressure symptoms
Abnormal pelvic exam findings
First line treatment menorrhagia if contraception not required
Mefanamic acid 500mg TDS (esp if dysmenorrhea as well), or tranexamic acid 1g TDS started on first day of period
Second line treatment menorrhagia if contraception not required
Try the other drug whilst awaiting referral
First line treatment menorrhagia when contraception required
Mirena
Other treatment options menorrhagia when contraception required
COCP
Long-acting progestogens
Short term option for rapid treatment of heavy menstrual bleeding
Norethisterone 5mg