HARD SAQs Flashcards
(315 cards)
define maternal mortality
death of a pregnant women at any gestation and within 42 days of delivery
maternal mortality ratio
MMR = number of direct deaths + indirect deaths + not yet classified / 100,000
4.8/100,000 australia
ATSI 21
aiming <70 WHO
what are the limitations of MMR
underreporting
misclassifications
biased
accuracy
interpretation
usefulness in planning
excludes late maternal deaths
does not capture morbidity or broader burden of disease
lack of context or cause
does not reflect inequalities eg rural, ATSI
difficult to compare between countries
what are some benefits of MMR
standardised
WHO
assist in comparison between countries
help target resources
WHO goals for Womens health
MMR <70
mental health - suicide in top 4 causes of death therefore aim to reduce
universal access to reproductive health
First Nations women
how improve MMR in developing countries
SEPSIS - hand hygiene, Abx, vaccinations
PPH - TXA, miso (room temperature), training
OBSTRUCTED LABOUR - 1:1 trained accoucheurs, access to OT
HTN - MgSO4, antihypertensives
SAFE ABORTION - access, education
define direct maternal death and give and example
death due to pregnancy or pregnancy related complications or management of pregnancy
postpartum haemorrhage, AFE
define indirect maternal death and give an example
death due to a condition exacerbated by physiology of pregnancy
CVD, sepsis
what are the factors that make a good study
RCT
multicentre
international
blinded
large numbers
specific primary and secondary outcomes
ethics
specific inclusion and exclusion criteria
equal numbers in interventions
governing body
ALPS trial/Gyamm Bannerman
determined whether there was benefit for babies K34-37 to receive steroids
maternal: no change in choir, endometritis, CS< time of delivery, LOS
neonatal: reduction in RDS, TTN, surfactant use, I/V, NICU, bronchopulmonary dysplasia
childhood: if reduced bronchopulmonary dysplasia –> presume reduced chronic lung disease
risk factors for cholestasis
personal/fhx
AMA
hep C
multiple pregnancy
what is the pathophysiology of cholestasis?
unknown
likely interaction between genetic, hormonal and environmental
genetic - rare variants in BA transporters, defective ACB4A gene, familial clusters
hormonal - increased E but also altered progesterone metabolism and increased progesterone sulphated metabolites –> itch
environmental: reduced selenium, reduced Vit D, seasonal variant
cholestasis management
explain diagnosis
MDT. high risk pregnancy
risks therefore discuss red flags
- maternal: pruritus, GDM, PET, vit K def –> PPH, long term (liver disease, autoimmune diseases)
- fetal: stillbirth, meconium liquor, PTB, RDS, long term not known
itch
- general
- antihistamine
- topical emollients
- URSO - PITCHES
monitor BA - weekly if >40, if over 40 then need coags if abnormal and need fit K then to be done weekly and before delivery
no evidence for CTG or USS
timing of delivery depends on highest BA
- obstetric MOD
postpartum
- discontinue urso
- consider annual LFT + 6/52 PP
- 60-70% recurrence
- vit K for baby
contraception
- COCP can be started once LFTs normalise
- itch/cholestasis develop stop COCP
- check LFT 3-6/12 PP
ICP is no longer a diagnosis of exclusion - when would you further investigate?
features that prompt further ix
- markedly abnormal LFTs
early onset
- rapidly progressive biochemical picture
- liver failure
- acute infection
- no resolution after birth
if concerns re viral infection: Hep A/B/C, CMV, EBV
if concerns autoimmune eg ICP <K30, BA >40, LFT >200 (5x upper limit), Fhx autoimmune: AMA, anti-smooth muscle Ab, anti-liver-kidney microsomal
structural: liver USS
what pre operative interventions can you do at time of LSCS
pre operative planning
- MDT
- if high risk for PPH then cell saver, plan
- cross match
anaemia - treat
placental location
Pmedhx/surghx - ?altered anatomy –> stents
IV Abu 30-60 minutes prior reduces endometritis and wound infection 60%
timing of anticoagulants
intraoperative steps at LSCS to reduce complications
IDC - drain bladder
oxytocin at time of delivery reduce PPH 50%
prep
- skin
- vagina reduce 50%
prep/drape/sterile
post operative cares and wound dressings
site of incision - high BMI, pannus
reduce intraoperative time and if extended consider additional IV Abu
meticulous haemoatsis
closure of submit if >2cm - reduce serum and wound infection
consider changing gloves
discuss risks and benefits of maternal request CS
Maternal short term
- increased: death, permpartum hysterectomy, endometritis, wound infection, pain at 3/7 pP
- reduced: OASI, pain during birth, anal sphincter, prolapse sx
Maternal long term
- increased rupture, PAS, surgery for adhesions, anterior anatomical wall hernia
- reduced: surgery for prolapse or stress incontinence within 25 years, reduced urinary and faecal incontinence at 1 year
Neonatal short term
- reduced neonatal mortality
Neonatal long term
- increased risk: hospitalisation for Resp and GI infections, asthma
menopause management
education and validation
- well woman check
- stressful –> validate
- natural life transiion
- education on physiology of menopause and variety pf symptoms and sequelae
- opportunity for health optimisation
discuss proven benefits of MHT
- reduced VMS, GUS, OP/fractures, CVD protective
- mood, cognition, sleep
discuss potential risks
- increased breast cancer
- stroke, VTE, ovarian cancer, gallbladder disease
explore contraindications
- breast cancer, unexplained AUB, active VTE, high risk CVD, uncontrolled HTN, active liver dsiease
lifestyle measures
education on types of formations
- lowest effective dose
- post menopausal continuous progesterone
- patches
- uterus needs E+P
follow up
- review on regular basis
- risks increased with prolonged use
strategies to reduce bowel injury at lap
awareness of anatomy/surgical skills/instrument handling
instruments within field, reduce traffic
do not cross instruments
do not lye instruments on structures
AEM
do not use reusable instruments, check installation prior
plastic holders
activation button
what investigations would you arrange for a potential fistula
bedside: urine MCS - exclude infection
bloods
- FBC - exclude infection
- UEC - renal function
imaging
- pelvic USS - exclude aroma, abscess, haematoma
- CT IVP - assess renal tract, look for extravasacition
- MRI pelvis
special
- EUA + cystoscopy
- high vaginal swab - exclude infection
-dye test/tampon test
principles of management of fistula
treat underlying infection, optimise pre operatively
understanding of fistula and approach
MDT
if urethral or urethral injury if fistula may be suitable for conservative management 4/52 IDC
surgical technique
- prophylactic Abx
- cannulate fistula with lacrimal probe, small feeding tube or pads foley - allow to draw vagina to Introits and facilitate vaginal dissection
- vaginal epithelium excised around fistula then vaginal epithelium flaps are raised and removed in wide circle 2-3cm around fistula
- multiple layers of absorbable suture placed without tension
- ensure water tight - Methylin blue and cystoscopy
- IDC 7-14 days
- CT IVP or cystogram prior to formal TOV
Outline physiological changes to red cell mass and total blood volume in pregnancy
red cell mass increases ~20%
total blood volume increases ~50%
dilatational effect as volume > red cell mass
increased demands on iron, B12 and folate
maternal erythropoiesis may struggle to keep up with demands
Types of anaemia in terms of MCV and MCH and example of each
Microcytic
o Normochromic: thalassemia
o Hypochromic: iron deficiency anaemia
Normocytic
o Normochromic: haemolytic eg mechanical heart valve
o Hypochromic: CKD, chronic disease
Macrocytic
o Megaloblastic: B12 or folate deficiency (normochromic)
o Non megaloblastic: alcohol, cirrhosis
o Hypochromic: retrics
Haemolytic: sickle cell
maternal and fetal risks of anaemia
maternal
- PPH, increased pRBC –> ab
- fatigue
- SOB
- presyncope/syncope –> injury
- increased infection
PTB
- Heart failure
fetal
- LBW
- PTB
- NICU
- fetal anaemia
- stillbirth
- neurodevelopment sequelae