Hypertensive Disorders in Pregnancy Flashcards
What is the maternal complication of hypertensive disorders of pregnancy?
- end organ damage
What are the fetal complications of hypertensive disorders of pregnancy?
- prematurity
- growth restriction
- death
What is considered hypertension?
- greater than 140/90
** What are the 4 categories of hypertensive disorders of pregnancy?
- chronic hypertension
- preeclampsia/eclampsia
- chronic hypertension with superimposed preeclampsia/eclampsia
- gestational hypertension
** What is chronic hypertension? (TEST QUESTION)
- known hypertension prior to pregnancy or developing before the 20th week of gestation. This will be there at least 12 weeks (3 months) post partum.
What causes chronic hypertension?
- primary cause= “essential hypertension” (aka don’t know)
- secondary causes= metabolic disorders including renal disease, vascular disease, and endocrine disorders. Stress of pregnancy may bring out the fact that this woman is a chronic hypertensive.
** How do we manage chronic hypertension?
- obtain labs: CBC, BUN, creatinine, LFTs, 24 hr urine for protein and creatinine, urinalysis.
- EKG
- observe for superimposed preeclampsia
- observe for intrauterine growth restriction (IUGR).
- control BP between 140-150/90-100 (want it higher to ensure perfusion to baby bc it requires a high pulse pressure to get the blood to the baby).
- deliver at term if no complications
What percent of pregnant women with chronic hypertension will also get superimposed preeclampsia?
- 20%
*** Will pregnancy exacerbate chronic hypertension?
NO
** What is preeclampsia? (TEST QUESTION)
- NEW onset of HTN AND PROTEINURIA during latter half of gestation (after 20 weeks).
- greater than 140/90 at rest on 2 occasions in a sitting position 6 hrs apart.
- proteinuria greater than 0.3 g in a 24 hour urine collection.
- may be associated with edema, headache, visual changes, or epigastric pain.
If you were thinking preeclampsia, but it is sooner than 20 weeks, what should you think now?
Molar pregnancy
*** What are the 2 categories of preeclampsia?
- MILD
- SEVERE= severe HTN (systolic greater than 160 or diastolic 110 mm Hg) at rest, on 2 occasions at least 6 hours apart + heavy proteinuria (at least 5 g in a 24 hr collection or a qualitative value of 3+ in urine samples collected 4 hrs apart).
What will you see with SEVERE preeclampsia? (think what happens when your vessels clamp down)
- cerebral or visual disturbances
- pulmonary edema or cyanosis
- RUQ pain
- impaired liver function (elevated LFTs)
- thrombocytopenia
- fetal growth restriction
*** What is eclampsia?
- new-onset of TONIC-CLONIC SEIZURES in a woman with preeclampsia
- most happen during labor, but can happen before or after as well.
** What is chronic hypertension with superimposed preeclampsia?
- chronic hypertension with new-onset proteinuria (greater than 0.3 g in a 24 hr collection) after the 20th week of gestation.