Gynaecology Flashcards
What is Amenorrhoea?
Primary amenorrhoea
Secondary amenorrhoea
refers to a lack of menstrual periods.
Primary amenorrhoea is when the patient has never developed periods
Secondary amenorrhoea is when the patient previously had periods that subsequently stopped
Primary amenorrhoea can be due to
- Abnormal functioning of the hypothalamus or pituitary gland (hypogonadotropic hypogonadism)
- Abnormal functioning of the gonads (hypergonadotropic hypogonadism)
- Imperforate hymen or other structural pathology
Secondary amenorrhoea is due to
- Pregnancy (the most common cause)
- Menopause
- Physiological stress due to excessive exercise, low body weight, chronic disease or psychosocial factors
- Polycystic ovarian syndrome
- Medications, such as hormonal contraceptives
- Premature ovarian insufficiency (menopause before 40 years)
- Thyroid hormone abnormalities (hyper or hypothyroid)
- Excessive prolactin, from a prolactinoma
- Cushing’s syndrome
Abnormal uterine bleeding or menstral bleeding is due to?
- Extremes of reproductive age (early periods or perimenopause)
- Polycystic ovarian syndrome
- Physiological stress (excessive exercise, low body weight, chronic disease and psychosocial factors)
- Medications, particularly progesterone only contraception, antidepressants and antipsychotics
- Hormonal imbalances, such as thyroid abnormalities, Cushing’s syndrome and high prolactin
What is Intermenstrual Bleeding
Intermenstrual bleeding (IMB) refers to any bleeding that occurs between menstrual periods.
Intermenstrual bleeding is a red flag that should make you consider ______ and ________ _____, although other causes are more common.
This is a red flag that should make you consider cervical and other cancers, although other causes are more common.
The key causes of intermenstrual bleeding are:
- Hormonal contraception
- Cervical ectropion, polyps or cancer
- Sexually transmitted infection
- Endometrial polyps or cancer
- Vaginal pathology, including cancers
- Pregnancy
- Ovulation can cause spotting in some women
- Medications, such as SSRIs and anticoagulants
What is Dysmenorrhoea
Dysmenorrhoea describes painful periods.
Causes of Dysmenorrhoea are
- Primary dysmenorrhoea (no underlying pathology)
- Endometriosis or adenomyosis
- Fibroids
- Pelvic inflammatory disease
- Copper coil
- Cervical or ovarian cancer
What is Menorrhagia
Menorrhagia refers to heavy menstrual bleeding
What is the causes of Menorhagia?
- Dysfunctional uterine bleeding (no identifiable cause)
- Extremes of reproductive age
- Fibroids
- Endometriosis and adenomyosis
- Pelvic inflammatory disease (infection)
- Contraceptives, particularly the copper coil
- Anticoagulant medications
- Bleeding disorders (e.g. Von Willebrand disease)
- Endocrine disorders (diabetes and hypothyroidism)
- Connective tissue disorders
- Endometrial hyperplasia or cance
- Polycystic ovarian syndrome
What is Postcoital Bleeding
Postcoital bleeding (PCB) refers to bleeding after sexual intercourse.
Postcoital Bleeding
is a red flag that should make you consider ________ and _____ _____, although other causes are more common. Often no cause is found.
is a red flag that should make you consider cervical and other cancers, although other causes are more common. Often no cause is found.
Postcoital Bleeding
The key causes are:
- Cervical cancer, ectropion or infection
- Trauma
- Atrophic vaginitis
- Polyps
- Endometrial cancer
- Vaginal cancer
Pelvic Pain Causes
- Urinary tract infection
- Dysmenorrhoea (painful periods)
- Irritable bowel syndrome (IBS)
- Ovarian cysts
- Endometriosis
- Pelvic inflammatory disease (infection)
- Ectopic pregnancy
- Appendicitis
- Mittelschmerz (cyclical pain during ovulation)
- Pelvic adhesions
- Ovarian torsion
- Inflammatory bowel disease (IBD)
g. Excessive, discoloured or foul-smelling discharge may indicate:
- Bacterial vaginosis
- Candidiasis (thrush)
- Chlamydia
- Gonorrhoea
- Trichomonas vaginalis
- Foreign body
- Cervical ectropion
- Polyps
- Malignancy
- Pregnancy
- Ovulation (cyclical)
- Hormonal contraception
What is Pruritus Vulvae
Pruritus vulvae refers to itching of the vulva and vagina.
Pruritus Vulvae Causes
- Irritants such as soaps, detergents and barrier contraception
- Atrophic vaginitis
- Infections such as candidiasis (thrush) and pubic lice
- Skin conditions such as eczema
- Vulval malignancy
- Pregnancy-related vaginal discharge
- Urinary or faecal incontinence
- Stress
What is Endometriosis?
Endometriosis is a condition where there is ectopic endometrial tissue outside the uterus
A lump of endometrial tissue outside the uterus is described as an__________. ___________ in the ovaries are often called “chocolate cysts”. ____________ refers to endometrial tissue within the myometrium (muscle layer) of the uterus.
A lump of endometrial tissue outside the uterus is described as an endometrioma. Endometriomas in the ovaries are often called “chocolate cysts”. Adenomyosis refers to endometrial tissue within the myometrium (muscle layer) of the uterus.
Causes of Endometriosis?
One notable theory for the cause of ectopic endometrial tissue is that during menstruation, the endometrial lining flows backwards, through the fallopian tubes and out into the pelvis and peritoneum. This is called retrograde menstruation. The endometrial tissue then seeds itself around the pelvis and peritoneal cavity.
- Embryonic cells destined to become endometrial tissue may remain in areas outside the uterus during the development of the fetus, and later develop into ectopic endometrial tissue.
- There may be spread of endometrial cells through the lymphatic system, in a similar way to the spread of cancer.
- Cells outside the uterus somehow change, in a process called metaplasia, from typical cells of that organ into endometrial cells.
Presentation of endometriosis?
Endometriosis can be asymptomatic in some cases, or present with a number of symptoms:
- Cyclical abdominal or pelvic pain - main symptom
- Deep dyspareunia (pain on deep sexual intercourse)
- Dysmenorrhoea (painful periods)
- Infertility
- Cyclical bleeding from other sites, such as haematuria
There can also be cyclical symptoms relating to other areas affected by the endometriosis:
- Urinary symptoms- blood in urine
- Bowel symptoms- blood in stool
Examination may reveal:
- Endometrial tissue visible in the vagina on speculum examination, particularly in the posterior fornix
- A fixed cervix on bimanual examination
- Tenderness in the vagina, cervix and adnexa
Having Endometriosis means you are infertile
TRUE OR FALSE
FALSE- reduced fertility
Diagnosis of Endometriosis?
Pelvic ultrasound may reveal large endometriomas and chocolate cysts
Laparoscopic surgery is the gold standard way to diagnose abdominal and pelvic endometriosis.- biopsy
What staging can you use for endometriosis?
American Society of Reproductive Medicine (ASRM)
Initial management for Endometriosis?
Initial management involves:
- Establishing a diagnosis
- Providing a clear explanation
- Listening to the patient, establishing their ideas, concerns and expectations and building a partnership
- Analgesia as required for pain (NSAIDs and paracetamol first line)
Hormonal management for Endometriosis?
- Combined oral contractive pill, which can be used back to back without a pill-free period if helpful
- Progesterone only pill
- Medroxyprogesterone acetate injection (e.g. Depo-Provera)
- Nexplanon implant
- Mirena coil
- GnRH agonists
Surgical management options for Endometriosis?
- Laparoscopic surgery to excise or ablate the endometrial tissue and remove adhesions (adhesiolysis)
- Hysterectomy
Laparoscopic treatment may improve fertility. Hormonal therapies may improve symptoms but not fertility.
What are Fibroids?
Fibroids are benign tumours of the smooth muscle of the uterus. They are also called uterine leiomyomas.
They are oestrogen sensitive, meaning they grow in response to oestrogen.
What are different types of fibroids
Explain them
- Intramural means within the myometrium (the muscle of the uterus). As they grow, they change the shape and distort the uterus.
- Subserosal means just below the outer layer of the uterus. These fibroids grow outwards and can become very large, filling the abdominal cavity.
- Submucosal means just below the lining of the uterus (the endometrium).
- Pedunculated means on a stalk.
Presentation of Fibroids?
Fibroids are often asymptomatic. They can present in several ways:
- Heavy menstrual bleeding (menorrhagia) is the most frequent presenting symptom
- Prolonged menstruation, lasting more than 7 days
- Abdominal pain, worse during menstruation
- Bloating or feeling full in the abdomen
- Urinary or bowel symptoms due to pelvic pressure or fullness
- Deep dyspareunia (pain during intercourse)
- Reduced fertility
Investigations for Fibroids?
Abdominal and bimanual examination may reveal a palpable pelvic mass or an enlarged firm non-tender uterus.
Hysteroscopy is the initial investigation for submucosal fibroids presenting with heavy menstrual bleeding.
Pelvic ultrasound is the investigation of choice for larger fibroids.
MRI scanning may be considered before surgical options, where more information is needed about the size, shape and blood supply of the fibroids.
Management for for fibroids less than 3 cm
For fibroids less than 3 cm, the medical management is the same as with heavy menstrual bleeding:
- Mirena coil (1st line) – fibroids must be less than 3cm with no distortion of the uterus
- Symptomatic management with NSAIDs and tranexamic acid
- Combined oral contraceptive
- Cyclical oral progestogens
Surgical options for managing smaller fibroids with heavy menstrual bleeding are:
- Endometrial ablation
- Resection of submucosal fibroids during hysteroscopy
- Hysterectomy
For fibroids more than 3 cm, women need referral to gynaecology for investigation and management. Medical management options are:
- Symptomatic management with NSAIDs and tranexamic acid
- Mirena coil – depending on the size and shape of the fibroids and uterus
- Combined oral contraceptive
- Cyclical oral progestogens
Surgical options for larger fibroids are:
- Uterine artery embolisation
- Myomectomy
- Hysterectomy
________ _______, such as goserelin (_________) or leuprorelin (_______), may be used to reduce the size of fibroids before surgery.
GnRH agonists, such as goserelin (Zoladex) or leuprorelin (Prostap), may be used to reduce the size of fibroids before surgery.
What is Uterine Artery Embolisation
Uterine artery embolisation is a surgical option for larger fibroids, performed by interventional radiologists. The radiologist inserts a catheter into an artery, usually the femoral artery. This catheter is passed through to the uterine artery under X-ray guidance. Once in the correct place, particles are injected that cause a blockage in the arterial supply to the fibroid. This starves the fibroid of oxygen and causes it to shrink.
What is Myomectomy
Myomectomy involves surgically removing the fibroid via laparoscopic (keyhole) surgery or laparotomy (open surgery). Myomectomy is the only treatment known to potentially improve fertility in patients with fibroids.
What is Endometrial Ablation
Endometrial ablation can be used to destroy the endometrium. Second generation, non-hysteroscopic techniques are used, such as balloon thermal ablation. This involves inserting a specially designed balloon into the endometrial cavity and filling it with high-temperature fluid that burns the endometrial lining of the uterus
There are several potential complications of fibroids:
WHat are they?
- Heavy menstrual bleeding, often with iron deficiency anaemia
- Reduced fertility
- Pregnancy complications, such as miscarriages, premature labour and obstructive delivery
- Constipation
- Urinary outflow obstruction and urinary tract infections
- Red degeneration of the fibroid
- Torsion of the fibroid, usually affecting pedunculated fibroids
- Malignant change to a leiomyosarcoma is very rare (<1%)
What is Red Degeneration of Fibroids
Red degeneration refers to ischaemia, infarction and necrosis of the fibroid due to disrupted blood supply. Red degeneration is more likely to occur in larger fibroids (above 5 cm) during the second and third trimester of pregnancy
Typical presentation of Red Degeneration of Fibroids
Look out for the pregnant woman with a history of fibroids presenting with severe abdominal pain and a low-grade fever in your exams. The diagnosis is likely to be red degeneration.
WHat is classed as Heavy menstral bleeding
Excessive menstrual blood loss involves more than an 80 ml loss. The volume of blood loss is rarely measured in practice. The diagnosis is based on symptoms, such as changing pads every 1 – 2 hours, bleeding lasting more than seven days and passing large clots. A diagnosis can be made based on a self-report of “very heavy periods”. Heavy menstrual periods can have a significant impact on quality of life.
History of Heavy menstral bleeding
What should you cover?
- Age at menarche
- Cycle length, days menstruating and variation
- Intermenstrual bleeding and post coital bleeding
- Contraceptive history
- Sexual history
- Possibility of pregnancy
- Plans for future pregnancies
- Cervical screening history
- Migraines with or without aura (for the pill)
- Past medical history and past drug history
- Smoking and alcohol history
- Family history
When would you NOT do any examinations/Ix with heavy menstral bleeding
straightforward history heavy menstrual bleeding without other risk factors or symptoms, or they are young and not sexually active
Ix for heavy menstral bleeding?
- Pelvic examination with a speculum and bimanual should be performed- This is mainly to assess for fibroids, ascites and cancers.
- Full blood count should be performed in all women with heavy menstrual bleeding, to look for iron deficiency anaemia.
- Swabs if there is evidence of infection (e.g. abnormal discharge or suggestive sexual history)
- Coagulation screen if there is a family history of clotting disorders (e.g. Von Willebrand disease) or periods have been heavy since menarche
- Ferritin if they are clinically anaemic
- Thyroid function tests if there are additional features of hypothyroidism
- Pelvic and transvaginal ultrasound
Management of Heavy Menstral Bleeding
When the woman does not want contraception; treatment can be used during menstruation for symptomatic relief, with:
- Tranexamic acid when no associated pain (antifibrinolytic – reduces bleeding)
- Mefenamic acid when there is associated pain (NSAID – reduces bleeding and pain)
Management when contraception is wanted or acceptable:
- Mirena coil (first line)
- Combined oral contraceptive pill
- Cyclical oral progestogens, such as norethisterone 5mg three times daily from day 5 – 26 (although this is associated with progestogenic side effects and an increased risk of venous thromboembolism)
What is the most common type of cervical Cancer
squamous cell carcinoma.
Adenocarcinoma is the next most common type.
Very rarely there are other types, such as small cell cancer.
Which virus is cervical ca commonly associated with
human papillomavirus- HPV 16 and 18
____ and ____ are tumour suppressor genes. They have a role in suppressing cancers from developing. HPV produces two proteins (___ and ___) that inhibit these tumour suppressor genes.
The___ protein inhibits ___, and the ____ protein inhibits ____. Therefore, HPV promotes the development of cancer by inhibiting tumour suppressor genes.
P53 and pRb are tumour suppressor genes. They have a role in suppressing cancers from developing. HPV produces two proteins (E6 and E7) that inhibit these tumour suppressor genes.
The E6 protein inhibits p53, and the E7 protein inhibits pRb. Therefore, HPV promotes the development of cancer by inhibiting tumour suppressor genes.
Risk Factors for Cervical Ca
- Increased risk of catching HPV
- Later detection of precancerous and cancerous changes (non-engagement with screening)
- Other risk factors
Increased risk of catching HPV occurs with:
- Early sexual activity
- Increased number of sexual partners
- Sexual partners who have had more partners
- Not using condoms
Other Risk Factors
- Smoking
- HIV (patients with HIV are offered yearly smear tests)
- Combined contraceptive pill use for more than five years
- Increased number of full-term pregnancies
- Family history
- Exposure to diethylstilbestrol during fetal development (this was previously used to prevent miscarriages before 1971)
Presentation of cervical Ca
- Cervical cancer may be detected during cervical smears in otherwise asymptomatic women.
- The presenting symptoms that should make you consider cervical cancer as a differential are:
- Abnormal vaginal bleeding (intermenstrual, postcoital or post-menopausal bleeding)
- Vaginal discharge
- Pelvic pain
- Dyspareunia (pain or discomfort with sex)
Ix for Cervical Ca
Speculum + swab - examine cervix
Where there is an abnormal appearance of the cervix suggestive of cancer, an urgent cancer referral for colposcopy should be made to assess further. Appearances that may suggest cervical cancer are:
Ulceration
Inflammation
Bleeding
Visible tumour
Explain the Cervical Intraepithelial Neoplasia grading system?
- CIN I: mild dysplasia, affecting 1/3 the thickness of the epithelial layer, likely to return to normal without treatment
- CIN II: moderate dysplasia, affecting 2/3 the thickness of the epithelial layer, likely to progress to cancer if untreated
- CIN III: severe dysplasia, very likely to progress to cancer if untreated
CIN III is sometimes called cervical carcinoma in situ.
The cervical screening program involves performing a smear for women (and transgender men that still have a cervix):
Ages
Years
- Every three years aged 25 – 49
- Every five years aged 50 – 64
There are some notable exceptions to the cervical smear programme
- Women with HIV are screened annually
- Women over 65 may request a smear if they have not had one since aged 50
- Women with previous CIN may require additional tests (e.g. test of cure after treatment)
- Certain groups of immunocompromised women may have additional screening (e.g. women on dialysis, cytotoxic drugs or undergoing an organ transplant)
- Pregnant women due a routine smear should wait until 12 weeks post-partum