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
5 signs/symptoms of menopause
- Amenorrhoea > 60 years (menopause likely in 2 years)
- Irregular menstrual cycle
- Vasomotor symptoms - Hot flushes, night sweat
- Vaginal symptoms - Dryness, itching, dyspareunia due to reduced oestrogen causing urogenital atrophy
- Mood swings
Management for menopause (4 points)
- Contraception: If < 50 y/o for 2 years; if > 50 y/o for 1 years - does not affect menopause
- Hormone therapy (oestrogen/transdermal oestradiol and progestin patches) to prevent against endometrial hyperplasia and cancer
- Topical oestrogen and vaginal moisturisers
- Testosterone for reduced libido
PCOS triad (2 out of 3 are diagnostic)
Rotterdam Criteria
- Irregular/absent ovulation
- Hyperandrogensim
- Polycystic ovaries on ultrasound (volume > 10 cm3)
5 signs/symptoms of PCOS
- Irregular menstruation
- Infertility
- Hirsutism: Male facial hair pattern, darkened hair
- Acne
- Obesity/hypertension/diabetes
What is a risk factor of having PCOS
Endometrial cancer
Why are women with PCOS most at risk of endometrial cancer?
Obesity/diabetes/amenorrhoea reduces progesterone. Endometrial lining continues to proliferate under influence of oestrogen but is not shed - increasing risk of cancer.
Blood tests for PCOS
- Testosterone
- Serum 17-hydroxyprogesterone: Excludes adult adrenal hyperplasia
- ** High LH or high LH:FSH **
- TFT
- Prolactin
- Oestrogen
Gold-standard for diagnosing PCOS
Transvaginal ultrasound - best view of ovaries
What is not reliable in teenagers with possible PCOS?
Pelvic ultrasound
Transvaginal US PCOS findings
String of pearls - > 12 follicles/ovary and/or ovarian volume > 10cm3
Initial management of absent periods/infertility in someone with PCOS
Weight loss
Management of risk of endometrial cancer in PCOS
Contraception - Mirena coil provides continuous protection, regular withdrawal bleeds if using COCP/POP
Cervicitis is most commonly caused by
STI
What should be performed before any internal vaginal examination?
Pregnancy test
What procedure will diagnose dyskaryosis?
Smear test/cervical screening cytology results
A woman receives a diagnosis of cervical dyskaryosis. What does this mean?
Dyskaryosis describes abnormal changes in the squamous cells lining the cervix with varying degrees of severity.
What procedure diagnoses CIN?
Colposcopy
Biggest risk factor for non-HPV cervical cancer
Non-compliance with cervical screening
2 HPV strains that cause cervical cancer
HPV 16 and 18
2 HPV strains that cause genital warts
HPV 6 and 11
3 signs/symptoms of CIN/cervical cancer
- Abnormal bleeding
- Mucoid/purulent/blood vaginal discharge
- Pelvic pain and dyspareunia
Ways to prevent cervical cancer
- HPV vaccine (Gardasil)
- Regular smear testing
- Smoking cessation
- Safe sex
How often must women aged 25-49 have cervical screening?
Every 3 years
How often must women aged 50-64 have cervical screening?
Every 5 years
How often must women with HIV/previous CIN etc have cervical screening?
Every year
How long must a post-partum woman wait for a smear test?
12 weeks
Management of CIN I
Repeat smear every 3-6 months, may resolve by itself
Management of CIN II or III
Biopsy - Punch or large loop excision of transformation zone under local
Treat - Cone biopsy under GA
Most common type of cervical cancer
Squamous cell
Gold-standard management for cervical cancer
Chemoradiation
Prognosis for a woman with stage 1A cervical cancer
98%
Cervical polyps may be a sign of
Cervical cancer
3 causes of cervical polyps
- Cancer
- Increased oestrogen (tamoxifen treatment, HRT)
- Infection - HPV, herpes
When are women commonly diagnosed with cervical insufficiency?
During pregnancy or cervical screening
RF of having cervical insufficiency in a pregnant woman
Spontaneous loss in 2nd trimester - management includes progesterone supplements in 2nd/3rd trimester or cervical cerclage (stitch cervix close and re-open in 3rd trimester)
3 causes of an incompetent cervix
- Trauma
- Congenital conditions
- Pregnancy
Cervical ectropion is defined as
Benign eversion of the endocervix (columnar epithelium) into the ectocervix (stratified squamous cells).
What cells are found at the ectocervix in cervical ectropion?
Columnar epithelial cells
2 main symptoms of cervical ectropion (typically asymptomatic)?
- Excessive discharge - Columnar epithelial cells at endocervix and now the ectocervix secrete discharge
- Post-coital bleeding - Columnar epithelial cells are fragile and therefore easily damaged during sexual intercourse
Main finding on a speculum examination in a woman with cervical ectropion
Well-demarcated red ring around cervical os, surrounded by pale pink squamous epithelium
Main cause of cervical ectropion
Increased oestrogen - Pregnancy, COCP, younger women
If you’re unsure on a diagnosis of cervical ectropion what management is recommended?
- Cervical screening to screen for pre-malignant changes
2. Colposcopy to screen for malignancy
Most common type of vaginal/vulval cancer
Squamous cell, rarely malignant melanomas.
What skin condition can cause vaginal cancer?
Lichen sclerosis
RF for lichen sclerosis
Women, pre-existing autoimmune conditions, skin conditions, thyroid conditions
What is a rectocele?
Posterior vaginal prolapse caused by the rectum prolapsing forwards into the vagina
3 symptoms of rectocele
- Palpable lump in vagina that can be moved
- Constipation
- Urinary symptoms
3 stages of management for rectocele
- Conservative: Kegel exercise, weight loss, reduce caffeine, pads, increase fluid/fibre to resolve constipation
- Pessary to support vagina with oestrogen cream
- Surgery
General RF for rectocele
Increased intra-abdominal pressure (i.e. chronic constipation, obesity, coughing)
What is a cystocele?
Anterior vaginal wall defect whereby the bladder prolapses into the vagina
What is a Bartholin’s cyst?
Fluid-filled, non-infected sac in one of the Bartholin’s glands located on the labia majora caused by duct blockage.
What can a Bartholin’s cyst develop into?
Bartholin’s abscess which is infected and requires treatment
A pea-sized, non-tender lump in the labia majora could be
Bartholin’s cyst
When should a biopsy be performed in someone with a suspected Bartholin’s cyst?
Woman > 40 y/o as ?vulval malignancy
2 types of surgery for a Bartholin’s abscess
- Word catheter/gland balloon under LA
2. Marsupialisation under GA
Most common bacteria that causes a Bartholin’s abscess
E. coli then STIs
What is a small benign cyst near the cervical os called?
Nabothian’s cyst
Candidiasis is also known as
Thrush
Creamy white plaques adherent to the mucosa alongside vulva discomfort could be a sign of
Candidiasis
What pH is candidiasis on a swab?
Acidotic < 4.5
What can anti fungals damage?
Latex condoms
Canesten Duo contains what 2 medications
Antifungal Fluconazole tablet with anti fungal clotrimazole cream
Vulva itchiness in a young girl is termed
Vulvovaginitis
Vulva itchiness in a post-menopausal woman is termed
Atrophic vaginitis
Atrophic vaginitis is caused by
Reduced oestrogen levels that lead to vaginal dryness and vaginal atrophy
Vulvovaginitis is caused by
Faecal bacteria spreading and irritating the vulva and vagina
What typically protects the vagina and vulva from infection in a fertile woman?
Oestrogen
2 types of infection causing infective vaginitis
STIs and candidiasis
2 types of management for atrophic vaginitis/dryness
- Vaginal lubricants
- Topical oestrogen - contraindicated with systemic HRT and may increase risk of endometrial hyperplasia so yearly reviews.
A longitudinal vaginal septum gives
A double vagina
A young girl presents to the GP with uncontrolled period flow even when using a tampon. What may be the cause?
Longitudinal vaginal septum - gives the appearance of 2 vaginas
A young girl has yet to start her period. She presents to A&E with severe abdominal pain that has been gradually getting worse. What could this be?
Transverse vaginal septum - blood will collect behind vagina
Purple patches with white lines (Wickham’s Striae) on the vulva is a sign of
Lichen planus
Shiny white patches affecting the vulva could be a sign of
Lichen sclerosus
A woman complains of vulva itchiness and skin changes that worsen when wearing tight underwear. What is this phenomenon termed?
Koebner’s
Management for vulval lichen conditions
Clobetasol propionate topical steroid and emollients
Loss of lactobacillus in the vagina causes an acidotic or alkaline pH?
Alkaline as less lactic acid produced
What type of cells might be shown on a BV swab?
Clue cells - Gardnerella vaginalsis
Offensive fishy-smelling, grey-white, thin discharge is a sign of
BV
What should be avoided when taking metronidazole and why?
Alcohol as can cause flushing, nausea, vomiting, shock, angioedema.
BV increases the risk of what 2 things
- Catching STIs
2. Pregnancy complications
Endometriosis is defined as
Presence of ectopic endometrial tissue outside of the uterus
Endometriomas in the ovaries are termed
Chocolate cysts
Endometriomas found in the myometrium are termed
Adenomyosis
Retrograde menstruation is defined as
Endometrial lining flowing backwards in menstruation into the fallopian tubes, pelvis and peritoneum
3 RF for endometrios
- Early menarche
- FH
- White ethnicity
Gold-standard for endometriosis diagnosis
Laparoscopy - biopsy confirms lesions and these can be removed to improve symptoms
3 primary care steps of management for endometriosis
- Pain and symptom diary
- Analgesia: NSAID and paracetamol
- Hormonal treatment either with COCP/POP/Mirena etc to stop ovulation/reduce endometrial lining or HRT
When to refer a woman with endometriosis (3 points)
- Symptoms are severe/persistent/recurrent
- Pelvic symptoms
- GI/GU symptoms
What is a leiomyoma?
Oestrogen-sensitive benign fibroid tumour of the uterine myometrium
What 2 fibroids can be pedunculate?
Subserosal and submucosal
What type of fibroid may press on the bladder?
Subserosal
What type of fibroid may extend into the uterine cavity and cause reduced fertility?
Submucosal
5 referral criteria for referring a lady with leiomyoma
- Compressive symptoms
- Dyspareunia
- Pelvic pain
- Fertility issues
- Fibroid > 3 cm
What must be avoided in women with uterine distortion?
IUD/IUS
What are pregnant women with a history of large > 5 cm fibroids at risk of?
Red degeneration of fibroids - fibroid outgrows blood supply leading to ischaemia, infarction and necrosis
What shape is a bicornuate uterus?
Heart-shaped
What is a uterus didelphys?
A double uterus
What type of cancer is endometrial cancer?
Oestrogen-dependent adenocarcinoma
What is the biggest cause of endometrial cancer?
Exposure to unopposed oestrogen
6 RF for exposure to unopposed oestrogen
- Age
- Early menarche
- Late menopause
- PCOS/obesity/T2DM
- No/few pregnancies
- Oestrogen-only HRT or tamoxifen
3 symptoms of endometrial cancer
- Post-menopausal bleeding (> 12 months since last period)
- Abnormally heavy menstruation
- Haematuria/anaemia/raised platelets
Normal endometrial thickness in a post-menopausal woman
< 4 mm
Type of biopsy that diagnoses endometrial cancer
Pipelle biopsy
Referral criteria for a transvaginal ultrasound in suspected endometrial cancer
Women > 55 years with
- Unexplained discharge
- Visible haematuria and raised platelets, anaemia, glucose
Cloudy discharge with abnormal vaginal bleeding could be a sign of
Chlamydia
STI investigation test for chlamydia/gonorrhoea in women
NAAT
STI test for chlamydia/gonorrhoea in men
Gram stain urine
Skin lesions, poly arthritis and conjunctivitis can be a sign of
Disseminated gonorrhoea
Primary syphilis is marked by the formation of a
Chancre
Secondary syphilis affects what 3 areas
Skin - Maculopapular rash
Lymph nodes - Lymphadenopathy
Mucous membranes - Fever/malaise
Genital herpes is caused by what 2 HSV strains?
1 and 2
3 treatments for candidiasis
Clotrimazole cream
Clotrimazole pressary
Flucanazole tablet
What can antifungals for thrush damage?
Condoms
Thick, frothy, green fish-smelling discharge can be a sign of
Trichomoniasis parasitic inception
Abx for trichomoniasis
Metronidazole
Complication of 2 year + use of contraceptive injection?
Osteoporosis
What layer of the skin is the contraceptive implant placed into?
Subdermal
What affects the efficacy of the contraceptive pills?
Nausea and vomiting
Female tubal occlusion has a failure rate of
1/200
What emergency contraception is used if unprotected sex has been within 72 hours?
Levonelle
What emergency contraceptive dose has to be doubled when a woman is > 70 kg?
Levonelle
If someone takes Levonelle and within 2 hours vomits, what is recommended?
IUD or another dose
What’s the time frame to take Ella-One or ulipristal acetate?
120 hours