Gynaecology Flashcards
Cervical cancer screening
2 years after first sexual intercourse or 25–75 years.
HPV test + cell cytology
Negative Result: Every five years.
Unsatisfactory: repeat 6-12 weeks
Positive NON 16-18: Repeat in 12 month. Again positive: Colposcopy.
Positive 16-18: Colposcopy.
Low grade: Repeat in 12 month. Again positive: Colposcopy.
High grade: Colposcopy
Breast cancer: Risk factors
Risk factors:
- Individuals with age of onset of cancer less than 50 years
- Individuals with ovarian cancer
*Increasing age is a major risk factor.
*Personal history of atypical hyperplasia or lobular carcinoma in situ.
*Strong family history of the disease or mutation in a breast cancer predisposition gene.
*Previous radiotherapy.
*High bone mass or obesity.
-Jewish ancestry
- Breast cancer in a male relative
Breast cancer: Screening Low risk
Low risk: Family member diagnosed at 50 years or over.
Screening: mammograms
every two years for women aged 50–74 years
Breast cancer: Screening Moderate risk
Moderate risk:
One 1st degree diagnosed before 50 years
or
Two 1st degree in the same family side at any age
or
Two 2nd degree in the same family side diagnosed before 50 years.
Screening: Annual mammogram for women age 40 years
Breast cancer: Screening High risk
High risk:
Member of the family in prescence of BRCA 1-2.
or
Two 1st or 2nd degree on the same family side diagnosed with BC or ovarian Ca PLUS:
*Additional relatives with BC or OC.
*BC diagnosed before 40 years.
*Bilateral BC.
*Breast & Ovarian Ca in the same woman.
*BC in a male relative.
*Ashkenazi jewish ancestry.
or
One 1st or 2nd degree with BC < 45 PLUS One 1st or 2nd degree with sarcoma < 45
Screening:
Annual mammogram for women age 40 years
Referral to a cancer clinic for risk assessment, possible genetic testing and management plan.
List of all enzyme inducers
- Phenobarbital
- Primidone
- Phenytoin
- Carbamazepine
- Oxcarbazepine
- Topiramate
-ST John’s Wort
Non-enzyme inducing anti epileptics
- lamotrigine
- Levetiracetam
NOTE: Increase dose in case of OCP as they increase metabolism
When does ovulation occur?
14th day (midcycle)
- LH surge
- next 24 h (12-36)
Ovulation occurring investigation
plasma oestradiol peaks
- ovulation to occur in 36-48 hrs
Cervical mucus alteration immediately before ovulation
-more abundant/maximal
- clear and slippery
NOTE: These are less accurate ways to predict ovulation
Investigation of choice to predict ovulation has occurred
Serum progesterone surge at day 21 (luteal phase)
- level > 20nmol/L
Ovulation pain is also known as
Mittelschmerz syndrome
Ovulation inducing drugs
Clomiphene
Primary Dysmenorrhoea
- Pain occurs before menses
- Initial treatments NSAID’s
- Trial of OCP’s for 2 months upon px request
Secondary dysmenorrhoea
- Treat underlying problem
DRAFT
Difference between biphasic and triphasic contraceptive pills
biphasic: same amount of oestrogen but level of progestin is increased halfway through
triphasic: 3 different doses of oestrogen and progesterone every week for 3 weeks along with sugar pills
Biphasic and triphasic contraceptive pills are both types of combined oral contraceptives, meaning they contain two hormones: estrogen and progestin. The difference between them lies in how the hormone levels change throughout the pill cycle.
Biphasic Pills:
• What They Are: In biphasic pills, the hormone levels change once during the cycle. • How They Work: • For the first part of the cycle (typically the first 10 days), the pills contain one level of hormones. • For the second part of the cycle (typically the next 11 days), the pills contain a different level of hormones (usually an increase in progestin). • Why It’s Used: Biphasic pills are designed to more closely mimic the natural hormonal changes in a woman’s menstrual cycle while still preventing ovulation.
Triphasic Pills:
• What They Are: In triphasic pills, the hormone levels change twice during the cycle, creating three different phases. • How They Work: • The cycle is divided into three phases, each with different hormone levels (estrogen and/or progestin). • The amount of hormones changes every 7 days across the three weeks. • Why It’s Used: Triphasic pills are also designed to mimic the natural menstrual cycle, but with more gradual changes in hormone levels, which some women find reduces side effects.
Summary:
• Biphasic Pills: Have two phases with different hormone levels during the cycle. • Triphasic Pills: Have three phases with different hormone levels during the cycle.
Both types aim to closely mimic the body’s natural hormone fluctuations to reduce side effects while effectively preventing pregnancy. The choice between biphasic and triphasic pills depends on how a woman’s body responds to the different hormone levels and her specific health needs.
COCP doses
- low dose: 20mcg of oestrogen.
- regular dose: 30-35mcg oestrogen.
- high dose: 50mcg of oestrogen.
High dose COCP indications
- Break through bleeding on low dose pills.
- When low dose pill fails.
- Concomitant use of enzyme inducing drugs
- Control of menorrhagia.
Approach to PMS
1st line: Conservative treatment for 3 menstrual cycles (yoga)
2nd line: COCP, SSRI
3rd: GNRH antagonists due tenderness (danazol) careful because this drug can induce menopause, main complaint of fluid retention spironolactone, main complaint of dysmenorrhoea (mefenamic acid)
BEST method: endometrial ablation, hysterectomy?
DRAFT
OCP absolute contraindications
- Pregnancy.
- < 6 weeks post-partum.
- Thromboembolic disease.
- CVA.
- CAD like known IHD
- Migraine with aura.
- Age >35 years and smoking > 15 cigarettes per day.
- Oestrogen dependent tumours.
- Active liver disease.
- Polycythaemia.
- Undiagnosed vaginal bleeding.
OCP relative contraindications
- Age > 35-45
- BMI > 35
- Smoker >15 cigarettes per day
- Breast feeding
- HT ( >160/ 100)
- DM
- Hyperlipidaemia.
- Depression
- SLE
- 4 weeks before and 2weeks after surgery
Monthly COCP contents
28 pill pack:
* 21 hormonal pills and
*7 sugar pills.
COCP administration
- Start on 1st day of menstrual period, continue till 21 days and then 7 sugar pills.
- Take pill on the same time every day, 1pill /day.
- On starting sugar pills, the lady gets periods.
- Protection starts from 1st day of using pills if taken from the 1st day of periods.
- Or if at any other time of the cycle, alternate methods of contraception should be used
for 7 days and pregnancy needs to be ruled out.
NOTE: a 24/4 pill pack is also available.
COCP advantages
- Decreased menorrhagia, dysmenorrhea and pre-menstrual syndrome. (Periods become
shorter, lighter and regular). - Decreased iron deficiency anaemia.
- Decreased incidence of functional ovarian cysts, PID, acne, thyroid disorders
OCP’s increase the risk of which cancer/s
if used more than 5 years:
- cervical
- breast
NOTE: conflicting data, use with caution
OCP decreased risk of which cancer/s
- Ovarian cancer 30-50%
- Colorectal cancer 15-20%
- Endometrial cancer >30%
OCP’s and ovarian cancer
OCP’s have no relation to developing ovarian cancer. Some sources have even labelled it as a protective factor
COCPs mild side effects
- Break through bleeding
- Nausea
- Vomiting
- Bloating
COCPs breakthrough bleeding management
- Usually settles in 3-4 months. If not, check compliance
- Change from low dose to regular dose
- Change progesterone to 2nd or 3rd generation if already on regular dose
OR - Another contraceptive or vaginal ring
COCPs major side effects
Irregular bleeding while on OCP risks
– Smoking
– Chronic malabsorption syndrome
– Severe nausea, vomiting and diarrhoea.
– Hepatic enzyme-inducing drugs
(anti-epileptics, anti-tuberculosis and drugs used to treat HIV.)
NOTE: Modafinil is a drug used in patients with a history of narcolepsy can also interfere with contraceptive pills efficacy due to enhanced liver metabolism
OCP’s and diarrhoea
Severe diarrhoea & vomiting decrease the effectiveness of OCP’s
- take an extra pill add barrier method in addition
Missed pills on OCP > 48 h
-1st week (1-7) emergency contraception, finish the pack as regular after
- 2nd week (8-14): No need for emergency contraception, finish the pack
- 3rd week (15-21): Next pack of pills should be started without a break (pill-free period omitted)
NOTE: > 7 pills missed, start new fresh pack (exclude pregnancy)
Px with hypertension on OCP
Change to POP
OCP and Otosclerosis
O bad for O
- Systemic hormones from OCP can exacerbate otosclerosis
- Prescribe IUD instead
Px with DVT on OCP
- If px has family history but DOESN’T have DVT herself: POP
- if px has history of DVT: POP
- prescribe barrier methods
DRAFT
Contraindications to POP
Current VTE
Rifampicin (absolute contraindication)
CYP3A4 inducers
malabsorption syndromes
ovarian cysts
previous sex steroid-dependent cancers (breast cancer)
undiagnosed vaginal bleeding
previous ectopic pregnancy
severe active liver disease
successfully treated Breast Cancer > 5 years
Absolute contraindication for progesterone implant (Implanon)
Breast cancer
Contraception of choice in breastfeeding women
POP for around 6 months, changing to OCP
POP’s in surgery
can be given but be on lookout for VTE
Progesterone increases the risk of
DVT
Px on epileptics wanting contraception
- Give IUD (Mirena)
- IF patient is seizure free for 2 years we can reduce the dose of anti-epileptics and give high dose OCP
- If patient not seizure free then only high dose OCP
NOTE: anti-epileptics are enzyme inducers and reduce OCP efficacy by 40-50%
Postinor-2
Progesterone only emergency contraceptive
- 2 tablets at the same time associated with less adverse effects (Virilisation)
DRAFT
Best emergency contraception until 5 days
1st Ulipristal
2nd Copper IUD
IUD best time for insertion
During the first 7 days of your menstrual cycle, which starts with the first day of bleeding
1st line treatment for Dysfunctional uterine bleeding
Mild: NSAID’s & Tranexamic acid
Moderate: COCP or POP
Severe: IV fluids, tranexamic acid, high dose norethisterone
HPV vaccination
administered in high school
Uterine prolapse
weakening of the uterosacral ligament
risk factors for the development of urinary incontinence
- Obesity (stress)
– Prenatal urinary incontinence (detrusor)
– Constipation (stress)
– Instrumental delivery
-Third and fourth-degree tears
-Baby with a birth weight of more than 4.0 kg (detrusor)
Post menopause is defined as
permanent end of menstruation and fertility, defined as occurring 12 months after the last
menstrual period
Most likely cause of post-menopausal bleeding
vaginitis due to oestrogen deficiency
Age of onset for ovarian cancer
50
HPV can cause what type of cancers
– Cancer of cervix.
– Cancer of oro-pharyngeal cavity.
– Squamous cell carcinoma of anus, penis and vagina.
– Cancer of the uterus
Cervical cancer risk factors
-All women who are or ever have been sexually active.
-Early age at first sexual intercourse.
- after 35
- prolonged use of OCP ( > 5 years)
- immunosuppression
- multiparity (>5)
- persistent HPV infection
-Multiple sexual partners.
-Genital warts virus infection.
-Cigarette smoking
genital warts HPV
6-11
Conservative methods to manage urinary incontinence
-Lose weight by 5% or more
-Reduce caffeine intake
-Modify fluid intake-according to hydration status.
-Pelvic floor muscle training
-Treat constipation to avoid straining.
-Treatment of respiratory conditions leading to a chronic cough
Investigation of choice for the diagnosis of endometriosis
Diagnostic laparoscopy with histopathology
What criteria of women that do not need cervical screening?
Women who have never engaged in sexual intercourse
Mastalgia causes
- cyclical mastalgia (most common)
- pregnancy
- caffeine
- breast cancer
< 10%
mastitis carcinomatosa (red and hot breast during lactation)
Oral contraceptive pills increase the incidence of which cancer
cervical cancer
most common type of cervical cancer
Sq of Ad
- Squamous cell carcinoma 80%
- adenocarcinoma
Stein- Leventhal syndrome is also known as
PCOS
Ovarian cyst: premenopausal cyst less than 5cm and asymptomatic
reassure
Ovarian cyst: premenopausal cyst 5-7cm and asymptomatic
Repeat US in 3-4months and monitor to see if the cyst grows
Ovarian cyst: premenopausal cyst >7cm and symptomatic
high risk of torsion
Refer to gynaecologist
Ovarian cyst: Post menopausal Simple unilateral, unilocular ovarian cysts of <5 cm and low risk of malignancy (normal Ca125)
managed conservatively conservatively as the RMI would be zero and 50% of these will resolve spontaneously in 3 months.
Ovarian cyst: Post menopausal
Cysts of 2–5 cm should be rescanned in 3–4
months.
Women with a moderate-to-high risk RMI should be referred to a referred to a gynaecologist or gynaecological oncologist for consideration of surgical management.
Menopause hot flushes due to oestrogen
SSRI
Menopause hot flushes
Cyclical oestrogen and progesterone HRT (oestrogen only in hysterectomy)
progestogen-only conditions
1-Hypertension
2-Superficial thrombophlebitis
3-History of thromboembolism
4-Biliary tract disease
5-Thyroid disease
6-Epilepsy
7-Diabetes without vascular disease
Premature menopause
- < 40 years
- oocytes produce less oestrogen and progesterone, both LH and FSH start to rise
- Menstrual irregularity and vaginal atrophy
- increased FSH level is diagnostic
Ovarian cancer risk factors
– A family history of either ovarian or breast cancer.
– Personal history of breast cancer due to BRACA genes.
– Early menarche.
– Late menopause.
– Nulliparity.
– Increasing age
- obesity
sexually active malodorous gray vaginal
Gardenerella vaginalis
Endometrial cancer risk factor
– History of chronic anovulation
– Exposure to unopposed oestrogen
– Polycystic ovary syndrome (PCOS) associated
with chronic anovulation
– Exposure to tamoxifen
– Strong family history of endometrial or colon cancer (Lynch syndrome)
– Nulliparity
– Obesity
– Endometrial thickness more than 8mm in premenopausal woman
Lynch syndrome
MLH1 + MSH2 mutation
- 40% endometrial cancer
- 10% ovarian cancer
Strong family history of endometrial or colon cancer (<50 years)
- 3 family members
- generational
- (<50 years)
Tumour with hair and teeth upon presentation
mature cystic teratoma (dermoid tumor)
Presentation of PID
lower abdominal pain that is gradual in onset and bilateral
Fever, vaginal discharge, dysuria, and occasionally abnormal vaginal bleeding
PID can lead to tubal scarring
diagnostic criteria include
uterine, adnexal, or cervical motion tenderness
Risk factors of familial breast-ovarian syndrome
1.Two first-degree or second-degree relatives on one side of the family with ovarian or breast cancer.
2.Individuals with age of onset of cancer less than 50 years.
3.Individuals with bilateral or multifocal breast cancer.
4.Individuals with ovarian cancer.
5.Breast cancer in a male relative.
6.Jewish ancestry
Breast cancer age cut off
50
Colon cancer age cut off
55
Prostatic cancer age cut off
65
hyperprolactinemia anovulation and should be treated with
bromocriptine