5 - Obs - Hypertensive Disorders in Pregnancy - Pre-eclampsia Flashcards
Definition - ? disease unique to preg that usually manifests as ? of > ?/? after ? weeks with ? >?g/24h
-of ? origin and only cure is ?
multisystem HTN 140/90 20 proteinuria 0.3 placental delivery
Pathophysiology -
Blood vessel ? damage, due to exaggerated maternal ?
response, leads to ? , incr ?perm and ? dysfunction. These can affect all maternal ?
and accounts for all effects. Incr ? ? accounts for HTN, incr ? ? for proteinuria, reduced ?
BF for IUGR and reduced ?
perfusion for eclampsia.
endothelial inflam vasospasm capillary clotting organs vasc resistance vasc perm placental cerebral
Degree classification -
Mild - ? and mild-mod HTN (140-?/90-?)
Mod - ? and ? HTN (>?/?) with no maternal ?
Severe - ? and any HTN
proteinuria 159, 109 proteinuria severe 160/110 complx proteinuria 34 weeks complx
Epidemiology - approx ?% nulliparous women, approx ?% recurrence rate, up to 50% if ? preeclampsia before ?weeks
6
15
severe
28
Aetiology + RF’s
- Predisposing RFs inc ?, prev/FHx of ?, ? inter-preg interval, obesity, extremes of maternal ? (esp >?), disorders characterized by ? disease (chronic ?, chronic ? disease, Sickle cell Disease, ??, autoimmune disease) and pregs w ? placenta (?, hydrops, ? preg).
nulliparity preeclampsia longer age >40 microvascular HTN, renal DM larger twins molar
Clinical features -
Hx - usually ? , poss headache, ?, ? disturbance, ?+?, ? pain = late sign
Ex - ? found in most pregs but may be ?, not ? or sudden onset. Epigastric ? suggests impending ?.
aSx drowsiness visual N+V epigastric oedema massive postural tenderness complx
Complx of Pre-eclampsia
- Maternal - can cause death. - 7 complx
- Fetal - can cause death. - 4 complx
- HELLP, CVA, Eclampsia, Renal failure, Liver failure, Pulm oedema, Disseminated intravascular coagulation
- IUGR, Preterm birth, hypoxia, , placental abruption
HELLP syndrome -
1) H = ? - ? urine, ? LDH, anaemia
2) EL = ??? - ? pain, ? failure, abnormal ?
3) LP = ?? - normally self limiting
can occur ?
Trt is ? and incl ? sulphate prophylaxis against ?
haemolysis dark raised elevated liver enzymes epigastric liver clotting low platelets
postnatally
supportive
magnesium
eclampsia
Eclampsia - trt with ?? and ? surveillance for other ?
CVA - trt ? > prevention
Renal Failure - ID by careful ? ? monitoring and ? measurement. ? in severe cases
Pulm oedema - ? preeclamptic pt v vulnerable to ??
trt = ? and ? - ? may dev - cause of mat mort.
mag sulph
intensive
complx
HTN
fluid balance
Cr
Haemodialysis
severe fluid overload O2 furosemide ARDS
Fetal complx -
? mort and morb of fetus are incr, pre-eclampsia accounts for 5% ? and 10% ? deliveries.
In pregs affected pre ?wks: principal prob is ?. ? delivery often req, though ? preterm labour more common.
At term: Pre-eclampsia affects fetal growth ? but is also ass w ? morb and mort. At all ? there is incr risk of ?abruption.
perinatal stillbirths preterm 34 IUGR preterm spont less incr gestations placental