Pre-eclampsia, fetal growth restriction, and stillbirth Flashcards

1
Q

6 hypertensive disorders of preg

A
  1. Gestational Hypertension – blood pressure elevation after 20 weeks of
    gestation that is asymptomatic and not associated with proteinuria
  2. Chronic hypertension – blood pressure elevation that predates
    pregnancy (or may be first discovered in early pregnancy)
  3. Pre‐eclampsia – new‐onset hypertension (generally) after 20 weeks of
    gestation, accompanied by proteinuria, OR features of severe disease
  4. Chronic Hypertension with super‐imposed pre‐eclampsia
  5. HELLP Syndrome – Hemolysis, Elevated Liver enzymes, Low Platelets
  6. Eclampsia – Encephalopathy associated with severe pre‐eclampsia
    characterized by grand mal convulsions
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2
Q

features of pre-eclampsia

A
new onset HT+
protenuira OR
thrombopenia
liver enzymes
renal impariment
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3
Q

4 systems affected by pre-eclmpsia

A
  1. fetus
  2. renal
  3. liver
  4. brains
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4
Q

factors that increase preEC risk

A
– Advanced Maternal age
– High BMI
– Elevated BP
– PV bleeding >5days in 1st trimester
– Pre‐conception relationship
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5
Q

3 factors that reduce risk

A
  1. smokingin T1
  2. misscarriage same partner
  3. attempt to conceive >12Mo
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6
Q

what is perfect placenta

A

disc with cord in middle and vessels all around

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7
Q

4 tests to consider

A
  1. maternal characerisitics
  2. IPS biochem
  3. morphology
  4. uterine artery doppler
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8
Q

what does multiply abnormal IPS indicate

A

75% PPV for preterm

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9
Q

what is bad morphology

A

small thick and with areas of poor development

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10
Q

what is placental insufficiency

A

chorion regression - doesn’t grow around the cord

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11
Q

what does doppler help indicate

A

uteroplacental insufficiency

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12
Q

what is s-FLT1

A
  • anti-angiogenic protein
  • released from synsytio and contributes to maternal endothelial dysfunction - less angiogeneiese and more vasoconstiction
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13
Q

what does low PIGF indicate

A

low time to delivery

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14
Q

what to do in severe pre-eclmp or later in time

A

deliver

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15
Q

what is importance of eclampsia

A

1 killer in low resource settings

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16
Q

treatment in antenatal perios

A
  1. education and suveilace
  2. steroids for lungs
  3. oral HTs
17
Q

what is treatment in intra-partum period

A
  1. 1to1 nurse
  2. fluid restriciton
  3. MgSO4
  4. antiHT
  5. high dependency care
  6. anasthesia
18
Q

what can be helpful early on

A

aspirin

19
Q

def. small for gestational age

A

Estimated Fetal Weight (EFW) or Birth Weight

below a specific centile

20
Q

def. IUGR

A

Fetus failing to achieve it’s growth potential

21
Q

3 general causes for IUGR

A
  1. maternal/env.
  2. placental
  3. fetal - chromo, congential
22
Q

what is key for screening IUGR

A

accurate dating

23
Q

what is general screening

A

serial height and if

24
Q

4 tests to screen in high risk women

A

same as preeclamp

25
Q

what are 2 general presentations of IUGR

A

early and late (32weeks)

26
Q

what is problem and prog in early and late

A

early: prob is MGMT - high MandM
late: prob is diagnosis - less mort

27
Q

what is key to look at on doppler (3)

A
  1. umbilical A
  2. MCA
  3. ductus venosus
28
Q

def. stillbirth

A

delivery of dead fetus at >20wk or >500grm

29
Q

2 types of still birth

A
  1. antepartum (1/200)

2. intra-partum - rare in dev. world

30
Q

what is most important preventable cause of stillbirth

A

failure to diagnose IUGR

31
Q

what is modern most common epi associatiokn

A

BMI>30

32
Q

ways to manage stillbirth

A
  1. blood tests
  2. induction of labor
  3. supportive care
  4. autopsy
33
Q

how to measure fetal maternal hemmorage

A

measure HbF in maternal blood

34
Q

interventions in low resource settings

A
  1. diet
  2. prevent malaria
  3. detect syphylllis
  4. detect IUGR
  5. skilled birth attendants
  6. OB services
35
Q

most important way to prevent still birth in low resource

A

OB care

36
Q

2 interventions to reduce still birth in canada

A
  1. prevent preterm

2. ID loate onset IUGR