TO REVISE WOMENS HEALTH Flashcards
UTIs IN PREGNANCY
what antibiotics are used to treat UTIs in pregnancy?
1st and 2nd trimester = nitrofurantoin
3rd trimester = amoxicillin or cefalexin if penicillin allergic
All are for 7 days
HYPEREMESIS
What is the diagnostic triad for hyperemesis gravidarum?
Triad –
- >5% weight loss compared to before pregnancy
- Dehydration
- Electrolyte imbalance
PLACENTA PRAEVIA
What are some risk factors for placenta praevia?
- Embryos more likely to implant on lower segment scar from previous c-section
- Multiple pregnancy
- Multiparity
- Previous praevia
- Assisted conception
PLACENTAL ABRUPTION
What are the major risk factors for placental abruption?
What are some other risk factors?
ABRUPTION
Abruption previously
Blood pressure (HTN)
Ruptured membranes
Uterine injury
Polyhydramnios
Twins/multiple pregnancy
Infection (chorioamnionitis)
Older age (>35)
Narcotic use (cocaine)
+ smoking, IUGR
VASA PRAEVIA
What are some risk factors for vasa praevia?
- Placenta praevia
- Multiple pregnancy
- IVF pregnancy
- Bilobed placentas
PRE-ECLAMPSIA
What are the…
i) high risk
ii) moderate risk
factors for pre-eclampsia?
i) Pre-existing HTN, previous pre-eclampsia, CKD, autoimmune (SLE, T1DM)
ii) Nulliparity, multiple pregnancy, >10y pregnancy interval, FHx, >40y, BMI >35kg/m^2
IUGR
What are some maternal causes of IUGR?
- Chronic disease (HTN, cardiac, CKD)
- Substance abuse (cocaine, alcohol) smoking, previous SGA baby
- Autoimmune
- Low socioeconomic status
- > 40
OLIGOHYDRAMNIOS
What are some causes of oligohydramnios?
- PROM or SROM
- Renal agenesis (Potter’s syndrome) or non-functional kidneys
- Placental insufficiency (pre-eclampsia, post-term gestation) as blood redistributed to brain so reduced urine output
- Genetic anomalies
- Obstructive uropathy
POLYHYDRAMNIOS
What are the causes of polyhydramnios?
- Increased foetal urine production (maternal DM), twin-twin transfusion, foetal hydrops
- Foetal inability to swallow/absorb amniotic fluid (GI tract obstruction e.g. duodenal atresia, foetal neuro/muscular issues)
INFECTIONS + PREGNANCY
What are the risks of Varicella zoster?
- Maternal risk = 5x greater risk of pneumonitis
- Foetal varicella syndrome = skin scarring, microphthalmia, limb hypoplasia, microcephaly + learning difficulties
BREECH
What are some causes/risk factors for breech presentation?
- Idiopathic
- Prematurity as baby may not have turned itself yet
- Previous breech
- Uterine abnormalities (bicornuate uterus), fibroids
- Placenta praevia
- Foetal abnormalities (CNS malformation
- Multiple pregnancy
- Poly/oligohydramnios
UTERINE RUPTURE
What are some risk factors for uterine rupture?
- VBAC
- Previous uterine surgery
- Increased BMI
- High parity
- Congenital uterine abnormalities
- Oxytocin use
PPH
What are the risk factors for PPH?
- Before birth = previous PPH, APH, twins/triplets, pre-eclampsia, obesity, polyhydramnios
- Labour = prolonged, c-section, perineal tear or episiotomy, macrosomia
HYPEREMESIS
What are some associations of hyperemesis gravidarum?
- nulliparity,
- hyperthyroid,
- obesity,
- decreased in smokers
HELLP
what are the risk factors for HELLP?
➢ White ethnicity
➢ Maternal age >35 yrs.
➢ Obesity
➢ Chronic hypertension
➢ DM
➢ Autoimmune disorders
➢ Abnormal placentation and multiple gestation
➢ Previous pregnancy with preeclampsia
HELLP
what is the management for HELLP?
➢ Seizure prophylaxis (magnesium sulfate), IV dexamethasone, labetalol. IM beclametasone
when patient <36wks
➢ Delivery is definitive treatment (should be done when patient is 37+ wks)
LOW BIRTH WEIGHT
what are the causes of low birth weight?
➢ Preterm birth (before 37 weeks gestation)
➢ Genetics (could be chromosomal abnormalities…)
➢ Uteroplacental insufficiency
➢ Multiple pregnancy
➢ Substance abuse (smoking, drinking alcohol, illicit drug) causing IUGR
➢ Chronic conditions and infections (hypertension, rubella, CMV, syphilis, toxoplasmosis, BV…)
➢ Medications (sodium valproate, ramipril, warfarin…)
UTEROPLACENTAL INSUFFICIENCY
what are the causes of uteroplacental insufficiency?
➢Abnormal trophoblast invasion:
▪ Pre-eclampsia
▪ Placenta accreta
➢ Abruption
➢ Infarction
➢ Placenta previa
➢ Tumor: chorioangiomas
➢ Abnormal umbilical cord or cord insertion (i.e., two vessel cord)
➢ Maternal diabetes
➢ Maternal hypertension
➢ Anemia
➢ Smoking
➢ Drug abuse (cocaine, heroin, methamphetamine)
➢ Antiphospholipid syndrome
➢ Renal disease
➢ Advanced age
UTIs IN PREGNANCY
what are the antenatal risk factors for UTIs?
- previous infection
- renal stones
- diabetes mellitus
- immunosuppression
- polycystic kidneys
- congenital abnormalites of renal tract
- neuropathic bladder
UTIs IN PREGNANCY
which antibiotics should be avoided in the third trimester and why?
- nitrofurantoin - risk of haemolytic anaemia in newborn with G6PD
- sulfonamides - risk of kernicterus in newborn due to displacement of protein binding of bilirubin
UTIs IN PREGNANCY
which antibiotics are contraindicated in pregnancy?
- tetracyclines - cause permanent staining of teeth and problems with skeletal development
- ciprofloxacin - causes skeletal problems
FIBROIDS
What are some risk factors for fibroids?
- Afro-Caribbean
- Obesity
- Early menarche
- FHx
- Increasing age (until menopause)
PCOS
What diagnostic criteria is used in PCOS?
Rotterdam criteria (≥2) –
- Oligo- or anovulation (may present as oligo- or amenorrhoea)
- Hyperandrogenism (biochemical or clinical)
- Polycystic ovaries (≥12) or ovarian volume >10cm^3 on USS
PCOS
What are some associations and complications of PCOS?
- DM, CVD + hypercholesterolaemia
- Obstructive sleep apnoea, MH issues, sexual problems
- Endometrial hyperplasia or cancer
PCOS
What are the PCOS risk factors for endometrial cancer?
How is the risk of endometrial cancer managed in PCOS?
- Obesity, DM, insulin resistance, amenorrhoea
- Mirena coil for continuous endometrial protection
- Induce withdrawal bleed AT LEAST every 3m with COCP or cyclical progesterones medroxyprogesterone 10mg 14d)
OVARIAN CANCER
What are some risk factors of ovarian cancer?
Unopposed oestrogen + increased # of ovulations –
- Early menarche
- Late menopause
- Increased age
- Endometriosis
- Obesity + smoking
Genetics (BRCA1/2, HNPCC/lynch syndrome)
OVARIAN CANCER
Hence, what are some protective factors of ovarian cancer?
- COCP
- Early menopause
- Breast feeding
- Childbearing
ENDOMETRIAL CANCER
What are some risk factors for endometrial cancer?
Unopposed oestrogen –
- Obesity (adipose tissue contains aromatase)
- Nulliparous
- Early menarche
- Late menopause
- Oestrogen-only HRT
- Tamoxifen
- PCOS
- Increased age
- T2DM
- HNPCC (Lynch syndrome)
MENOPAUSE
What is the management of menopause in more severe cases?
- HRT first-line for vaso-motor Sx as most effective
- Clonidine (alpha adrenergic receptor agonist) second line with low-dose antidepressants like venlafaxine (not C/I in breast cancer Tx) or fluoxetine
- CBT
- Vaginal oestrogen cream/tablets + moisturisers for dryness
HRT
What are the side effects associated with oestrogen?
- Nausea,
- bloating,
- headaches,
- breast swelling or tenderness,
- leg cramps
URINARY INCONTINENCE
What is the mechanism of action of anti-muscarinics?
- Parasympathetic so Pissing = decreases need to urinate + spasms
URINARY INCONTINENCE
What is the mechanism of action of beta-3-adrenergic agonists?
- Sympathetic so Storage = relaxes detrusor + increases bladder capacity