Obstetrics + Gynaecology Flashcards
O+G history - general
- Gynaecology systems review
- More about bleeding (4 times)
- More about periods
- Other important systems to consider
- Obstetrics systems review (2 broad)
- Sexual systems review
- 4 Ps - PV discharge, PV bleeding, pregnancy, periods, cervical smear, STIs
- Bleeding - heavy, intermenstrual, post-coital, post-menopausal
- Periods - cycle, bleeding heaviness/length/regularity, pain, menarche, LMP, other bleeding, smear history
- Urinary (UTIs, incontinence), GI
- Any pregnancies (for each one - term, problems, mode of delivery, miscarriages, ectopics), any terminations, HTN, DM, thrombocytopaenia
- Contraception, most recent partner (male or female, type of sex, contraception), how many partners in last 6 months, any pain/discomfort, bleeding, STIs infertility
Menorrhagia (excess volume/duration)
- Causes - systemic
- Causes - local
- Causes - iatrogenic
- History - important red flags (2)
- History - subjective assessment of severity
6, Linked disease (+ symptoms to check for) - Referral - urgent if (2)
- 2ww if
- Management - interim between urgent referral
- 1st line in community - hormonal
- 2nd line (if declined/contraindicated)
- Surgical (+ when not suitable)
- Clotting disorder, hypothyroidism
- Dysfunctional uterine bleeds, fibroids, polyps, PID, endometriosis, endometrial carcinoma
- Copper coil
- Intermenstrual, post-coital
- Clots, flooding, nocturnal soiling, level of sanitary protection, interfering with work/social events
- Anaemia (palpitations, pale, lethargy, SOB)
- Ascites, pelvic/abdominal mass not obviously due to fibroids
- Pelvic mass + any other sign of cancer
- TXA (thrombosis) / NSAIDs
- Mirena progesterone IUS
- TXA / NSAIDs / contraceptive pill
- Endometrial ablation (not if wishing to conceive). Take endometrial biopsy if failed treatment + thick
Other abnormal uterine bleeding (AUB)
- Inter-menstrual - causes
- Post-coital - causes
- Post-menopausal - causes
- Test in AUB if 45+
- Endometrial cancer (>40), polyps, cervicitis/vaginitis, IUCD
- Cervical trauma / polyps / carcinoma, vaginal
- Endometrial cancer until proven otherwise,atrophic vaginitis, carcinoma (cervical / vulval)
- Endometrial biopsy
Pregnant abdomen - examination
- Inspection - general (4)
- Skin signs (4)
- Foetal heartbeat - (rough) location
- To complete exam, do what (2)
- Increased bump size for dates - causes
- Decreased bump size for dates - causes
- Polyhydramnios - causes
- Oligohydramnios - definition/causes
- Distension, foetal movements, scars, skin changes
- Straie (gravidarum/albicans), linea nigra, umbilicus, excoriations (obstetric cholestasis)
- Half way between umbilicus and ASIS
- BP, urine dip
- Macrosomia, polyhydramnios, multiple pregnancy, wrong dates, fibroids
- Oligohydramnios, growth restriction, small baby
- DM, foetus swallowing amniotic fluid, foetal infection
- < 500 ml at 32-36 weeks; premature membrane rupture, foetal renal problem, IUGR, pre-eclampsia
Mechanism of labour - stage one
- Parts (2)
- Cervical dilatation - L stage
- Cervical dilatation - A stage
- Expected rate - primiparous
- Expected rate - multiparous
- Clinical signs
- What happens to foetus in stage 1
- Complications - 3 Ps (+ examples)
- Interventions - to precipitate initiation of labour
- For cervical dilatation
- For contractions
- Latent, active
- 0-3 cm
- 3-10 cm (fully dilated)
- 1 cm every 2 hours
- 1 cm every hour
- Regular painful contractions, progressive cervical dilation, “show” (bloodstained mucus), membrane rupture
- Head descends into the pelvis
- Passenger (foetal malpresentation)
Passage (Fibroids / cervical stenosis)
Power (Uterine inertia) - Prostaglandin gel
- Artificial membrane rupture
- Oxytocin
Mechanism of labour - stage two
- What happens (briefly)
- Primiparous - time
- Multiparous - time
- First foetal movement (+ head position)
- Stage 2 (+ head position)
- Stage 3
- Stage 4 (+ shoulder position)
- Stage 5
- Complications - ‘dytocia’ (3)
- Delayed labour - diagnosed/suspected
- Expulsion of foetus
- 15-45 minutes
- 45-120 minutes
- Flexion of the head as it descends and engages
body (occipitotemporal) - Head internal rotation (occipitoanterior)
- Head extension (around pubic symphysis) + delivery
- Restitution/external rotation (shoulders AP position)
- Shoulder delivery (anterior first)
- Secondary uterine intertia, persistent occipito-posterior position, narrow mid-pelvis
- 1 (multiparous) / 2 (nuliparous) hours after S2 start (suspected after 30/60 minutes of inadequate progress)
Mechanism of labour - stage 3
- What happens (briefly)
- What to give to speed up
- Time taken (with and without)
- Signs (2)
- Complications - primary PPH definition
- Primary PPH - causes (4 Ts)
- Commonest cause (90%) + risk factors
- Atony - management
- PPH - further management
- Secondary PPH - cause
- PPH - preventative measures
- Placenta in situ + PPH - management
- Other (2)
- Expulsion of placenta
- Syntometrine (oxytocin + ergometrine)
- 5-10 / 30-60 minutes
- Gush of blood (50-100 ml), cord lengthening
- > 500 ml loss in < 24 hours
- Tone, Tension, Trauma, Thrombosis
- Uterine atony (multple current/previous pregnancies, macrosomia, polyhydramnios, fibroid uterus, prolonged labour, previous APH/PPH)
- Massage uterine fundus to stimulate contraction, oxytocin, prostaglandin
- Bimanual compression, catheter, prostaglandin, TXA
- Retained tissue/clot
- Treat anaemia before labour, avoid long traumatic labour, active 3rd stage management
- Deliver via controlled cord traction or manual removal under GA
- Retained placenta, uterine inversion
COCP
- Mechanism of action
- How to take
- When to start
- If miss
- Pros
- Side effects
- Contraindications
- Increased risk of which cancers (2)
- Protective against which cancers (3)
- Stops ovulation, increases cervical mucus production, thins endothelium
- Every day for 3 weeks, around same time each day, then one week off
- Day 1 of cycle, or use condom for first 7 days
- Use the advice on the packaging, if >1 not covered + use barrier contraception
- Regulate periods, improve acne
- Headaches, nausea, mood changes, breast tenderness - often resolve
- Migraine with aura, VTE history, Smoke 35+, breastfeeding
- Breast, cervical
- Ovarian, endometrial, colorectal
Progesterone only pill
- Mechanism of action
- How to take
- When to start
- If miss
- Pros
- Side effects
- Contraindications
- Increases thickness of cervical mucus, thins endothelium
- Same time of day, every day (7 placebo pills)
- Day 1 of cycle, or use condom for first 7 days
- Take straight away, if >3 hrs use condom for 2 days, consider emergency contraception of had sex 2-3 days before or after missed pill
- Can make periods lighter/stop them
- Mood swings, acne, headaches, tender breasts
- Breast cancer, undiagnosed PV bleeding, liver disease
Progesterone depot injection
- Mechanism of action
- Given how often
- Side effects
- Contraindications
- Can take how long for fertility to return after stopping
- Stops ovulation, increased/thickened cervical mucus, thins endothelium
- IM injection every 3 months
- Mood swings, weight gain, acne, headache, tender breasts, irregular periods
- Cancer, liver disease, undiagnosed PV bleed
- 18 months
Progesterone implant
- Mechanism of action
- Inserted how + immediate side effects
- Side effects
- Post-insertion red flags
- Stops ovulation, increased cervical mucus, thins endothelium
- Inserted under the skin, under LA, can cause bleeding / bruising / infection / scarring
- Mood swings, weight gain, acne, headache, tender breasts
- Red and sore arm, discharge, systemically unwell
Mirena coil (progesterone IUS)
- Mechanism of action
- To do before inserting
- Covered immediately when
- Lasts for how long
- Periods often become what
- Check strings how often
- Post-insertion red flags
- Contraindications
- Stops ovulation, increase cervical mucus, thins endothelium
- STI check
- Inserted in first 7 days of cycle (if not, condom for 7 days)
- 3-5 years
- Lighter, shorter, less painful; often get irregular bleeding or spotting
- Every 4 weeks
- Severe pain, smelly discharge, fever
- PID <3m ago, STI, gynaecological cancer, small uterine cavity, undiagnosed PV bleed
Copper coil
- Mechanism of action
- Starts working, for how long
- Impact on periods
- Absolute contraindication
- Spermicide, alters cervical mucus
- Immediately, for up to 10 years
- Can become heavier/more painful
- Pelvic inflammatory disease
Emergency contraception
- Levonorgestrel - how long works after sex
- Ellaone pill - how long works after sex
- Cannot use if
- Impact on progesterone contraception
- Medication in it, which meds reduce efficacy (2)
- Copper coil - how long works after sex
- Does what
- Which ECs don’t affect contraception
History
- Sexual history
- Contraception history
- Period type
- PMH
- FH
- Social history
- STIs
- Pregnancy, other
- Counselling
- Eggs last how long
- Sperm last how long
- 3 days (1.5 mg stat dose)
- 5 days
- Previously used in a cycle
- May reduce efficacy
- Ulliprestel; PPI + ranitidine
- 5 days
- Prevents implantation
- Levonorgestrel, copper coil
- When, who, consensual, regular partner
- Any current, type, reason for failure, why EC needed, previously used EC in this cycle
- LMP, cycle length, current day of cycle
- HTN, migraine with aura
- VTE, stroke, migraine with aura
- Smoking, drinking
- Discharge, bleeding, warts, test
- Any chance of current pregnancy, smear, medications
- Future contraception options, STI risk, take test in 3 weeks, ectopic safety net, retake if vomit in < 2 hours
- 1 day
- 5 days
Pelvic inflammatory disease (PID)
- Presentation (4)
- Commonest causative organism
- Fitz Hugh Curtis Syndrome - what
- Fever, bilateral lower pelvic pain, dyspareunia, vaginal discharge
- Chlamydia
- Peri-hepatic inflammation/adhesions secondary to Chlamydia - forms ‘Glisson’s capsule’
Uterine fibroids
- Definition
- Grow if (+ why)
- Shrink if (+ why)
- Pain type and causes (3)
- Other symptoms (3)
- Risk factors
- Protective factors
- Complications - gynaecological
- Pregnancy
- Imaging - 1st line, then gold standard
- Management - indications for treating
- Adjunct to surgical removal (myomectomy)
- Invasive alternative to surgical removal
- Benign tumour of the myometrium
- Pregnancy - hyper-oestrogenic state
- Menopause - hypo-oestrogenic state
- Pain localised and constant; caused by degeneration, pelvic varices, uterine ligament stretch
- Subfertility, urinary symptoms (press on bladder), bloating (press on rectum)
- Black, increasing age, never pregnant, obesity
- Smoking, COCP, full-term pregnancy
- Degeneration, torsion if pedunculated, malignancy (very small risk of leimyosarcoma)
- Infertility, obstructed labour, PPH
- USS, then MR
- Symptomatic, rapidly growing, causing infertility
- GnRH analogues - reversible, temporary, chemical menopause
- Uterine artery ablation (does not preserve fertility)
Early pregnancy complications
- History - important questions (5)
- Cervical shock - what it is
- Presentation
- Other differentials (2)
- If unsure between above 2, do what test
- Viable - result
- Miscarriage - result
- Ectopic - result
- LMP, last smear, bleeding, discharge, pain
- Vagal response to dilation caused by products of conception distending the cervical canal
- Low pulse, low BP
- Miscarriage, ectopic pregnancy
- beta hCG 48 hours apart
- Doubled
- Significantly reduced
- Stayed same/increased slightly
Miscarriage
Definitions
- Threatened
- Inevitable
- Missed/delayed/silent
- Complete
- Incomplete
- Risk factors - general
- Iatrogenic
- Examination
- Management - options (3)
- Expectant - latest gestation, wait for how long
- Recurrent - definition/causes (4 broad)
- Terminations - < 9 weeks
- 9-13 weeks
- 13-23 weeks
- Painless light bleeding < 24 weeks, cervix closed
- Heavy painful bleeding < 24 weeks, clots, cervix open
- Scan shows no viable foetus / empty intrauterine sac, cervix closed, maybe no bleeding
- No products of conception on scan, cervix closed, has had bleeding
- Scan shows products of conception, cervix open, has had painful bleeding
- Fetal abnormality, infection, maternal age/illness
- Intervention e.g. amniocentesis, CVS
- Abdomen soft, >12 weeks then uterus may be palpable
- Expectant, medical (misoprostol), surgical
- 13 weeks, wait to see if happens in next 1-2 days
- 3+ consecutive; antiphospholipid, poorly-controlled endocrine (DM/thyroid disorder/PCOS), uterine abnormality, smoking
- Mifepristone (anti-progestogen), then misoprostol 48 hours later to stimulate uterine contractions
- Surgical dilation and suction
- Surgical dilation and evacuation / late medical
Ectopic pregnancy
- Risk factors
- Haemorrhage - signs
- Examination - Unruptured ectopic
- Ruptured ectopic
- Expectant management - if
- Management - medical (alternative to expectant)
- If hCG > 1500, which options
- Surgical - indications
- Advice post-medical management
- PID, tubal surgery, peritonitis / pelvic surgery, IUS in situ, endometriosis, IVF pregnancy
- Pulse weak + fast, low BP, pale, sweaty, collapse
- Uterus not palpable, tender on affected side, maybe some guarding/rebound tenderness
- Entire abdomen tense, guarding, rebound tenderness
- Clinically stable, painless, < 3.5cm, hCG < 1000
- Methotrexate (static / rising hCG)
- Methotrexate or surgical management (salpingectomy, salpingotomy)
- Mass > 4cm, unstable, failed medical, previous ectopic
- Can’t get pregnant for 3 months after
Endometritis
- Presentation
- Complication of what
- Fever, malaise, lower abdominal pain, change in vaginal bleeding
- ERCP
Vaginal discharge
- STI causes (3)
- Non-STI causes (2)
- Inflammatory causes (3)
- Malignant causes (3)
- Other causes (2)
- Investigations - general (2)
- If suspecting PID
- If suspecting malignancy
- Bacterial vaginosis - presentation
Management - Trichomonas vaginalis - presentation (4)
Management - Candidiasis - presentation
- Chlamydia, trichomas vaginalis, neisseria gonorrhoea
- Candida albicans, bacterial vaginosis
- Atrophic changes, allergic reaction, post op granulation tissue
- Vulval / cervical / uterine carcinoma
- Foreign body, fistula
- Microbiology swabs, MSU
- Laparoscopy
- Vulval biopsy, cervical smear / biopsy, pelvic USS, endometrial sampling, hysteroscopy
- Grey/green, ‘fishy’ discharge, vulval itching, burning with urination
Metronidazole PO 5-7 days - Offensive frothy yellow / green discharge, vulvovaginitis, strawberry cervix
Metronidazole - Cottage cheese discharge, vulvitis, vulval erythema, burning with urination, dyspareunia
Endometriosis
- Definition
- Clinical features (5)
- Investigation - Gold standard
- Prior imaging option
- Analgesia management - 1st line
- Hormonal management - offer to all
- Above management does not do what
- Surgical management (2)
- Growth of endometrial tissue outside of the uterine cavity
- Chronic pelvic pain, premenstrual dysmenorrhoea, menorrhagia, deep dyspareunia, subfertility
- Laparoscopy
- Ultrasound
- Paracetamol +/ ibuprofen
- COCP, progestogen, mirena coil
- Improve subfertility
- Laporascopic excision / ablation
Menopause
- Diagnosis - < 50
- Diagnosis - 50+
- Premature menopause - age
- Symptoms (+ duration)
- Tests if suspected (3)
- Management - initial
- Hormone replacement therapy - benefits (2)
- Risks
- Contraindications
- HRT if no oestrogen (no uterus) / IUS in last 5 years
- HRT if <1 yr since LMP + uterus
- Continuous HRT - used when
- If high thrombotic risk, which is preferred oestrogen
- Regimen if irregular periods + uterus, give what
- Reduced libido
- Vaginal atrophy only
- Non-HRT management - vasomotor, dryness, mood, atrophy
- 24 months after LMP
- 12 months after LMP
- < 40
- Menorrhoea / irregular cycles, hot flushes, night sweats, vaginal symptoms, mood change, sleep disturbance (last 2-5 years)
- Pregnancy test, FSH, serum oestradiol
- Lifestyle - weight loss, exercise, no alcohol / caffeine
- Reduced osteoporosis / coronary artery disease
- Cancer: ovarian (all types) / breast (if combined) / endometrial, VTE (if oral), stroke (if oral oestrogen), IHD (if combined)
- Undiagnosed PV bleeding, pregnancy, acute liver disease, uncontrolled HTN, oestrogen-dependent cancer, breast cancer, VTE, recent stroke/MI/angina
- Continuous oestrogen-only therapy, or SSRI (2nd line)
- Cyclical combined HRT
- Cyclical combined for 1+ year / 1+ year since LMP (2+ if premature menopause)
- Transdermal
- Sequential
- Oestrogen and androgen combined
- Vaginal oestrogen +/- vaginal moisturiser
- Fluoxetine/citalopram/venlafaxine, moisturisers, CBT, vaginal oestrogen
Cervical cancer
- Symptomatic presentation
- Risk factors
- Screening - intention
- Smears every 3 years
- Smears every 5 years
- Yearly smears
- Borderline changes / low grade dyskaryosis
- Moderate/high grade dyskaryosis / suspected cancer
- Intraepithelial neoplasia - management (3)
- Cervical ectropion - cause/histology
- Bleeding (inter-menstrual, post-coital, post-menopausal), persistant discharge
- HPV infection, early sex, many partners, poverty, smoking, partner with prostatic/penile cancer, HIV
- To detect pre-malignant change
- 25-49 years old
- 50-64 years old
- HIV positive
- HPV test - if positive then colposcopy in 6 weeks, if not then routine screening
- 2ww colposcopy
- Large loop excision, needle excision, core biopsy
- High oestrogen (ovulation, pregnancy, COCP) result in more columnar epithelium on ectocervix (less stratified squamous)
Ovarian hyperstimulation syndrome
- Pathophysiology
- Presentation - severe
- Complications (3)
- High oestrogen levels, vascular permeability, 3rd space fluid build up - leads to intravascular fluid depletion
- N+V, painful abdominal distension, fluid shift (ascites and pleural effusion)
- Hepatorenal failure, ARDS, VTE
Polycystic ovary syndrome (PCOS)
- Common features
- Associated conditions (3)
- Examination - findings
- Management - 1st line
- Periods
- Acne
- Hirsuitism
- Diagnostic criteria (2/3 of)
- Hirsutism, acne, irregular/infrequent periods, weight gain, infertility, scalp hair loss
- Insulin resistance/T2DM (OGTT screen), sleep apnoea, metabolic syndrome, CVD
- Hirsutism, sweating/oily skin, acne, acanthosis nigricans
- Diet + exercise
- Medroxyprogesterone / COCP / IUS
- COCP
- Waxing/shaving, COCP
- 2003 Rotterdam Consensus Criteria (2+ of: 1) oligo/anovulation, clinical/biochemical signs of hyperandrogenism, polycystic ovaries
Gynaecological malignancies
- Endometrial carcinoma - commonest presentation
- Risk factors
- Referral when, 1st line
- 1st line management
- Management if frail
- Protective factors
- Ovarian - main blood test (can also be raised by)
- Commonest presentation
- Risk factors
- Imaging (1st, then next)
- Vulval/vaginal carcinoma - presentation
- Post-menopausal bleeding
- Obesity, unopposed oestrogen, tamoxifen (uterus oestrogen agonist), DM, many ovulations (early menarche/late menopause), Lynch syndrome, PCOS
- 2ww if >55 + post-menopausal bleeding, do TV USS
- Local (total abdo hysterectomy with bilateral salpingo-oophorectomy), post-op radiotherapy if high risk
- Progesterone therapy
- COCP, smoking
- CA 125 (endometriosis, menstruation, ovarian cyst)
- Bloating/abdominal pain, early satiety, loss of appetite (12+ times/month)
- BRCA 1/2, many ovulations
- USS firstly, then CT to stage
- Itching, bleeding, lesions on that area
Molar pregnancy
- USS findings
- ‘Snowstorm’
Dysmenorrhoea
- Classification - primary
- Usually starts
- Classification - secondary
- Common causes (4)
- Investigations
- No pelvic pathology
- 6-12 after first period
- Present pelvic pathology
- Endometriosis, chronic PID, fibroids, polyps
- Pregnancy, swabs, bloods (clotting, FBC, CRP), TV USS
Antenatal appointments / investigations
- First appointment (booking) - when
- Bloods
- Other tests
- Hb measured again when
- Routine date scan - when
- Anomaly scan - when
- < 10 weeks
- Hb, platelets, infectious diseases (HIV, syphilis, Hep B), blood group/antibody status, sickle cell, thalassaemia
- BMI, BP, MSU
- 28 weeks
- 8-13 weeks
- 18-20 weeks
Antenatal syndrome screening
- Combined test - which syndromes
- When
- Comprised of what (2)
- Increased NT indicates what (3)
- If too late/can’t do NT, do what Quad test - which syndrome, when
- When
- Bloods (4)
- Interpretation
- Down syndrome - NHS diagnostic tests + weeks (2)
- Risk of these
- Private diagnostic test
- Downs (T21), Edwards (T18), Patau (T13)
- 10-14 weeks
- Bloods (PAPP-A, bhCG), nuchal translucency
- Downs, congenital heart/abdominal wall defect
- Quad test (Downs), mid-pregnancy scan (E/P)
- 14-20 weeks
- AFP, inhibin A, oestriol, b-hCG
- Low (lower than 1 in 150 chance, 19/20) vs
higher (greater than 1 in 150 change, 1/20) - Chorionic villous sampling (11-14), amniocentesis (15+)
- Miscarriage in 0.5-1 in 100
- Cell free foetal DNA test
Diabetes in pregnancy
- Effect of pregnancy on DM
- Effect of DM on mother
- Effect of hyperglycaemia on foetus
- Higher risk of what in foetus
- Existing DM - mothers do what before pregnancy
- Medication changes
- Gestational - risk factors
- Diagnostic test/criteria
- If previous GDM, do what
- BM - check how often (+ targets)
- Additional growth USS - when
- Delivery - offer what
- Must have C-section if
- Increased insulin (more hypos), neuropathy/retinopathy worse
- Higher risk of: pre-eclampsia, infection, needing induction, C-section, worsening renal disease
- Foetal hyperglycaemia, so increased foetal insulin production, leading to macrosomia + polyhydramnios
- Miscarriage, shoulder dytocia, unexplained stillbirth, congenital malformations
- Weight loss, quit smoking/alcohol, good sugar control (HbA1C < 48), retinopathy/nephropathy screening
- Folic acid for 3 months, switch to metformin/insulin
- BMI >30, GDM FH/PMH, PCOS, ethnic, previous big baby
- 28 weeks OGTT, fasting > 5.6 or 2 hour plasma > 7.8
- Earlier OGTT at 12-16 weeks
- Pre-meal (< 5.3), 1 hour post-meal (< 7.8), bedtime. Always keep above 4
- Monthly from 28 weeks
- Elective at 37-38 weeks, earlier if complications
- Estimated foetal weight > 4.5 kg
Anti-D
- What for
- Potential sensitising events
- Test to check level of foeto-maternal haemorrhage
- Prophylaxis (RAADP) - when to give (general)
- Post-natal Anti-D - when/indications
- Risks of RAADP (2)
- Rhesus disease - symptoms/signs
- Management
- Complications
- To prevent sensitisation if rhesus negative mother exposed to rhesus positive blood - RhD negative antigens neutralised so antibodies not produced
- Foetal loss (spontaneous miscarriage, abortion), trauma (invasive procedures, placental abruption, foeto-maternal haemorrhage), blood transfusions
- Kleihauer test
- 28 weeks, or divided dose (28 + 34 weeks)
- Within 72 hours post-birth, if cord blood rhesus positive
- Allergic rash/flu, infection from donor plasma
- Foetal haemolytic anaemia, jaundice
- Blood transfusions, IVIG, phototherapy
- Hydrops (fluid accumulation), brain damage, deafness, blindness, stillbirth
Foetal/intrauterine growth restriction (FGR/IUGR)
- Definition
- Determined via which measurements
- Risk factors
- Management
- TORCH infections - which
- Associated with what
- Small for dates - definition
- Causes - other
- Large for dates - causes
- Baby not reaching growth potential
- Abdo/head circumference, femur length
- Previous small baby, HTN/pre-eclampsia, reduced foetal movements, maternal disease (anaemia, HTN, other), maternal TORCH infections, smoking/alcohol, placental insufficiency
- Exclude underlying causes, monitor (size), timely delivery (monitor foetal HR / blood flow), C-section
- Toxoplasmosis, other (syphilis, varicella-zoster, parvovirus B12), rubella, CMV, herpes
- Increased risk of congenital abnormalities
- Foetal weight below 10th percentile
- Constitutional, incorrect G.A., oligohydramnios
- DM (macrosomia, polyhydramnios), constitutional, incorrect G.A., polyhydramnios, lots of weight gain
Pregnancy-induced HTN
- Definition
- Management if high-risk of developing pre-eclampsia
- Existing HTN - advice
- Target BP
- When to admit
- Pre-eclampsia - definition
- Quantifying proteinuria
- Risk factors
- Symptoms
- Bloods
- Monitoring
- Management - other
- Eclampsia - definition
- Seizure management (or if severe of others)
- Severe (160/110) HTN in critical care - management
- Other monitoring
- At risk of what (+ signs)
- HTN after 20 weeks
- 75-150mg aspirin OD from 12 weeks until birth
- ACE-i/ARB/thiazide (likes) - stop as abnormality risk
- 135/85
- BP >160/110
- HTN after 20 weeks with proteinuria
- If 1+ protein on dipstick, do P:CR (>30) or A:CR (>8)
- 1st pregnancy, twins/triplets expected, >40 yo, previous pre-eclampsia, pre-existing DM / HTN / kidney disease / SLE / anti-phospholipid syndrome, FH
- Oedema, headache, vision problems, epigastric/RUQ pain, N+V, brisk reflexes
- U+E, LFT, urate, FBC
- USS (growth restriction), placental function
- Early delivery (37-38 weeks), regular monitoring, labetalol if >160
- HTN, proteinuria, seizures
- IV magnesium sulfate 4g loading then infusion
- Labetalol / nifedipine if asthmatic / hydralazine
- Urine output, RR, reflexes, SpO2. Limit fluids
- HELLP syndrome (haemolysis, elevated liver enzymes, low platelets)
Other diseases in pregnancy
- Obesity - increased risk of
- Target BMI before pregnancy
- Vitamin requirements
- Anaemia - threshold for treating - booking
- 28 weeks
- 1st-line management
- VTE - risk factors
- At risk how long post-delivery
- Highest risk group and how they are managed
- Suspected PE - initial and subsequent imaging
- 1st line management + what to avoid
- Acute fatty liver - presentation
- Morning sickness - when
- Hyperemesis gravidarum - diagnostic requirements
- HG - score to quantify
- HG - management
- Miscarriage, congenital malformations, pre-eclampsia, gestational DM, macrosomia, VTE, labour complications (induced, obstruction, longer, C-section)
- < 30
- High (5mg) folic acid to 12 weeks, 10mcg Vit D to birth
- < 11 dg/L
- < 10.5 dg/L
- Diet, ferrous sulphate
- Thrombophilia, 35+ yo, BMI > 30, parity > 3, smoking, immobility, large VVs, co-morbidities, systemic infecton
- Up to 6 weeks
- C-section; 7 days of LMWH
- CXR, then V/Q if normal or CTPA if abnormal
- LMWH (if confirmed DVT then start 1st before chest imaging), not warfarin
- Epigastric/RUQ pain, N+V, anorexia, malaise
- 4-7 weeks to 13 weeks (second trimester)
- Dehydration, weight loss
- Pregnancy-Unique Quantification of Emesis (PUQE)
- Hartmann’s, cyclizine IV, maybe PPI, vitamin replacement (thiamine, folic acid)
Pregnancy - general tips
- Bad habits
- Diet
- Supplements
- Exercise
- Stop smoking / drinking
- Balanced, normal amount, avoid uncooked soft cheese with white rinds/blue, raw eggs/meat
- Folic acid 400mcg OD from 3 months before to 12 weeks or 5mg if higher risk (FH, DM, PMH, AEDs, obese). Also vitamin D (10mcg until breast feeding), maybe iron/B12
- Good, but no impact sports
Abdominal pain in 2nd and 3rd trimesters
- Obstetric causes
- Gynaecological causes
- GI causes
- Presentation - symphysis pubis dysfunction
- Ligament pain
- Ovarian cyst rupture
- Labour, placental abruption, symphysis pubis dysfunction, ligamental pain, pre-eclampsia, HELLP
- Ovarian torsion, cyst rupture / haemorrhage, uterine fibroid degeneration
- Constipation, pyelonephritis, gallstones/cholestasis, pancreatitis, peptic ulcer, cystitis, renal stones
- Low/central pain, tender SP, worse on movement
- Sharp/bilateral pain, worse on movement
- Unilateral, intermittent, associated with N+V
CTG
- Used from how many weeks
- Interpretation - DR C BRAVADO
- Foetal heart rate - normal range
- Suspicious CTG - conservative management
- Pathological CTG - management
- Urgent intervention required - CTG findings (2)
- 26
- Define risk, contractions, baseline, rate, accelerations, variability, decelerations, overall assessment
- 110 - 160 bpm
- Mobalise the mother, change position, IV fluids if hypotensive, stop oxytocin, offer tocolytic drug (e.g. terbutaline)
- Conservative measures, urgent review by an obstetrician and a senior midwife, offer digital foetal scalp stimulation, consider foetal blood sampling / expediating birth
- Acute bradycardia, single deceleration > 3 mins
Antepartum haemorrhage (APH)
- Over 50% caused by (2)
- Other uterine causes (2)
- Lower genital causes
- Placenta problems - suggestive findings (2)
- Placenta praevia - definition
- Commoner when
- Examination
- What to avoid if suspected
- Follow up scan when
- C-section when
- Potential complication
- Definition - placenta accreta
- Vasa praevia
- Placental abruption - what is it
- Presentation
- Risk factors
- Complications of blood loss (3)
- What is Sheehan’s syndrome (+ symptoms)
- Placenta praevia, placental abruption
- Vasa praevia, circumvallate placenta
- Cervical ectropion/polyp/carcinoma/cervicitis, vaginitis, vulval varices
- Foetal vessel resistance, reduced liquor volume
- Low lying after 20 weeks of pregnancy
- Previous C-sections, smoking, fertility treatment
- Uterus SNT, non-engaged/malpresentation, minor bleeding
- Digital exam
- 36 weeks
- If placenta within 2 cm of cervical os
- PPH
- Placenta stuck to womb lining
- Foetal blood vessels run near uterine opening (membrane rupture then painless bleeding + foetal bradycardia)
- Placental attachment to uterus disrupted by haemorrhage as blood dissects under placenta
- Mild-severe pain and vaginal bleeding, uterus tender and tense, may be signs / symptoms of pre-eclampsia
- Pre-eclampsia, previous abruption, older woman, smoking, multiparity, abdominal trauma, cocaine use, external cephalic version
- DIC, renal failure, Sheehan’s syndrome
- Hypopituitarism from ischemic necrosis - difficulty breastfeeding, little/no menstruation
Induction of labour
- Timing indications
- Maternal indications
- Foetal indications
- 1st step
- 2nd step
- 3rd step
- ARM - complication
- 10 days post-full term if no problems (41-42 weeks)
- Severe pre-eclampsia, recurrent APH, pre-existing disease
- Prolonged pregnancy, IUGR, rhesus disease
- Cervix ripening - membrane sweep, then prostaglandin pessary/pill if that doesn’t work
- Artificial membrane rupture - when cervix ready but not happened after 24 hours
- Syntocinon infusion - when membranes ruptured but labour not started
- Amniotic fluid embolism
Breech presentation
- Complications
- Management - when to discuss
- Options (3)
- ECV - contraindications
- ECV - performed how
- Success rate
- Medication to give alongside
- Vaginal breech - EFW cut-off
- Advised against if
- Increase in perinatal mortality/ morbidity, difficult to deliver head (entrapment), rapid foetal head compression and decompression
- If still breech at 36 weeks
- External cephalic version (ECV), elective c-section, planned vaginal breech
- Pelvic mass, APH, placenta praevia, previous C-section/hysteroscopy, multiple pregnancy, ruptured membranes
- On labour ward, monitoring, tocolytics, USS control
- 50% of time
- Anti-D
- > 4 kg
- Footling, pre-eclampsia, placenta praevia, large/small
Shoulder dytocia
- Risks
- 1st line management
- Previous, DM, BM >30, induced/long labour, assisted vaginal delivery
- McRoberts manoeuvre
Assisted vaginal delivery
- Ventouse - maternal indication + cause
- Foetal indication (2) + cause
- Can be used from
- Required from mother (2)
- Foetal complications
- Forceps - types (2)
- Not required from mother
- Maternal indication (2)
- Foetal indications
- Foetal complications (3)
- Maternal complications of both (2)
- Second stage delay due to maternal exhaustion
- Abdnormal CTG / second stage delay due to foetal malposition
- 34 weeks
- Adequate maternal effort, regular contractions
- Scalp oedema / subperiosteal bleeding
- Tractional, rotational
- Adequate maternal effort, regular contractions
- Medical conditions complicating labour, unconscious
- < 34 weeks, face presentation, foetal bleeding disorder, head delivery in breech
- Bruising / facial nerve palsy / depression skull fracture
- Genital tract trauma - haemorrhage/infection
C-section
- Maternal indications
- Foetal indications
- Complications
- Preparations ahead of complications
- VBAC - can occur when
- Contraindications (2)
- Two previous LSCS, maternal disease/request, placenta praevia, active genital HSV, HIV
- Breech presentation, twin if 1st not cephalic, cord prolapse, 1st stage problems (abnormal CTG, abnormal foetal blood sample, delay from malpresentation/position)
- Haemorrhage, gastric aspiration, visceral injury, foetal laceration, infection, higher future pregnancy complication risk
- Crossmatch, group + save, routine antacids, maybe prophylactic ABX
- If C-section due to unrepeatable cause e.g. foetal distress
- Previous uterine rupture, classical C-section scar
APGAR score
- Stands for
- Calculated when (2)
- Normal score
- Score indicating neurological damage
- Appearance, pulse, grimmace, activity, respiration
- 1 and 5 minutes
- 7+
- < 3
Pregnancy - physiological changes
- Cardiovascular (3)
- Respiratory
- Blood
- Urinary system
- Biochemistry
- Liver
- Uterus
- Increased HR/cardiac output, reduced diastolic BP in trimesters 1+2, decreased venous return (uterus blocking) so ankle oedema/supine hypotension/VVs
- Pulmonary ventilation up 40% despite needs only up by 20%, so fall in CO2 can lead to dyspnoea
- Maternal volume up 30%, plasma more than Hb so anaemia, increased clotting/fibrinogen, platelets down, WCC/ESR up
- Increased protein loss, increased GFR
- Increased calcium requirements + absorption, ionised levels stable but serum levels lower, crosses placenta
- No change in hepatic flow, high ALP, low albumin
- 100g - 1100g, hyperplasia then hypertrophy
Infertility
- Causes
- Initial investigations (2)
- Progesterone - interpretation
- Premature ovarian failure/primary ovarian insufficiency - definition
- Causes (4)
- Bloods
- Hormone origin/functions - FSH
- LH
- Oestrogen
- Progesterone
- If irregular cycle and subfertile, which other tests
- Male factor, unexplained, ovarian failure, tubal damage
- Semen analysis (2nd 3 months later if abnormal), LH/FSH (assesses ovarian reserve), serum progesterone 7 days before period (mid-luteal phase, confirms ovulation)
- < 16 refer, 16-30 repeat, >30 indicates ovulation
- Onset of menopausal symptoms and elevated gonadotrophin levels < 40 years old
- Idiopathic, chemotherapy, radiation, autoimmune
- Raised FSH / LH, low progesterone
- Anterior pituitary; stimulates follicular growth in ovaries and oestrogen release
- Anterior pituitary; surge causes ovulation; corpus luteum forms
- Ovaries; thickens endometrium, inhibits LH/FSH for most of cycle but stimulates release pre-ovulation
- Ovaries; thickens endometrium, inhibits LH/FSH
- Oestrogen (ovarian function), prolactin, free testosterone
HPV
- Which strains cause genital warts (2)
- Which cause cervical cancer (2)
- Linked to which other malignancies (5)
- Symptoms
- Caught how
- Vaccination - offers to who, what age
- Given as
- Why given so young
- 6, 11
- 16, 18
- Anal, vulval, vaginal, mouth, throat
- Usually none; most will not know they’re infected
- Any sexual touching, most can clear but some don’t
- 12-13 year old boys + girls (up to 25 years old if missed)
- Gardasil, 2 doses - 2nd dose 6-12 months after 1st
- Best protection before sexual activity starts
Chickenpox exposure in pregnancy
- Risk to mother - 5x greater risk of
- Foetal varicella syndrome - occurs if exposure
- Clinical features
- Other risks to foetus (2)
- Management of exposure - 1st investigation
- If not immune, give what
- If present within 24 hours of rash, give woman what
- Pneumonitis
- <20 weeks (1% risk)
- LDs, skin scars, smalle eyes/head, limb hypoplasia
- Shingles in infancy (2-3rd trimester exposure)
Severe neonatal chickenpox (if maternal rash 5 days before / 2 days after delivery) - Varicella antibody test if unsure about past exposure
- Varicella zoster immunoglobulin (VZIG) up to 10 days post-exposure
- PO aciclovir