Obs pass med Flashcards
what is puerperal pyrexia?
A temperature of > 38ºC in the first 14 days following delivery
What is the most common cause of puerperal pyrexia?
Endometritis
other causes include: UTI, wound infections, mastitis, venous thromboembolism
What is the management of puerperal pyrexia?
If endometritis is suspected the patient should be referred to hospital for IV (clindamycin and gentamicin until afebrile for greater than 24 hours)
what medications are suitable for breastfeeding women (antidepressant)?
sertraline and paroxetine are the SSRIs of choice
What are the two main risk factors for placenta acretta?
-Previous C section
-Placenta previa
What is oligohydraminous?
-Reduced amniotic fluid
-Less than 500ml between 32-36 weeks and an amniotic fluid index <5th percentile
What are the causes of oligohydraminous?
-Premature rupture of membranes
-Potter sequence (bilateral renal agenesis + pulmonary hypoplasia)
-IUGR
-Post-term gestation
-Pre-eclampsia
Why folic acid important to take in pregnancy?
protects against neural tube defects - which are caused by folic acid deficiency
How should “high risk” women take folic acid?
5mg of folic acid before conception until 12th week pregnancy
What is recommended with folic acid to all women in pregnancy?
400 mg of folic acid until 12 weeks
When are women considered “high risk” for having a baby with neural tube deftect?
-Fhx NTD
-Taking antiepileptic drugs
-Coeliac disease
-Diabetes
-Thalassemia triat
-Obese BMI>30kg
Why does shoulder dystocia occur?
Due to impaction of anterior fetal shoulder on maternal pubic symphysis - occurs after the head has been delivered
What are the risk factors of shoulder dystocia?
-Fetal macrosomia (hence association with MDM)
-High BMI
-Prolonged labour
-DM
How should shoulder dystocia be managed once idenifted?
-Senior help
-Episiotomy (allows better access for internal manoeuvres)
-McRoberts’ manoeuvre
What is McRoberts’ manoeuvre?
Flexion and abduction of maternal hips - it increases the relative anterior-posterior angle of the pelvis
What are the complications of shoulder dystocia?
-Maternal: PPH and perineal tears
-Fetal: Brachial plexus injury and neonatal death
What are symptoms of placental abruption?
Vaginal bleeding with pain and discomfort
What are risk factors for placental abruption?
-Chronic hypertension
-Smoking
-Cocaine use
-Abdominal trauma
What investigation should be done if placental abbruption?
NOTE: these are performed to investigate the extent and consequence of the arupbtion
-Blood test - FBC (Hb), group and save, Kleihauer in RhD - women, this is to gauge the dose of anti D
-Ultrasound can be used to diagnose placenta praevia but does not exclude abruption
-CTG to see if the there is fetal distress
What weeks are corticosteriods useful ?
24- 34+6 - if at risk of preterm birth
What are antenatal corticosteroids associated with?
Significant reduction in rates of neonatal death, RDS, intraventricular haemorrhage
What is the management of placental abruption if fetus alive and <36 weeks?
Fetal distress: immediate C section
No fetal distress: Admit observe closely, administer corticosteroids, no tocolysis, threshold to deliver depneds on gestation
What is the management of placental abruption if fetus alive and >36 weeks?
Fetal distress: Immediate C section
No fetal distress: deliver vaginally
How to manage placental abruption if fetus dead?
Induce vaginal delivery
What are the maternal complication of placental abruption?
-Shock
-DIC
-Renal failure
-PPH
What are the fetal complication of placental abruption?
-IUGR
-Hypoxia
-Death
What is the prognosis of placental abruption?
-Associated with high perinatal mortality rate
-Responseible for 15% of perinatal deaths
What are the high risk factors for developing pre-eclmapsia?
-Hypertensive disease in pregnancy
-CKD
-Autoimmune diseases, such as lupus
-Chronic hypertension
-Type 1 or 2 diabetes
What are the moderate risk factors for developing pre-eclampsia?
-First pregnancy
-Age >40
-Pregnancy internal >10 years
-BMI >35 at first vist
-Multiple pregnancy
What should women with either > 2 moderate factors or >1 high factors take?
75-150mg aspirin
What is the classical triad of pre-eclampsia?
-New-onset hypertension
-Proteinuria
-Oedema
What is the definition of pre-eclampsia?
-Newonset blood pressure > 140/90 mmHg after 20 weeks AND 1 or more of :
-Proteinuria
-Other organ involvement (renal, liver, neurological, uteroplacental dysfunction)
What are features of severe pre-eclampsia?
-Hypertension: typically > 160/110 mmHg and Proteinuria
-Proteinuria: dipstick ++/+++
-Headache
-Visual disturbance
-Papilloedema
-RUQ/epigastric pain
-Hyperreflexia
-Platelet count < 100 * 106/l, abnormal liver enzymes or HELLP syndrome
What are the complications of pre-eclampsia?
-Eclampsia
-Fetal complications: Intrauterine growth retardation, prematurity
-Liver involvement (elevated transaminases)
-Haemorrhage (placental abruption)
-Cardiac failure
What is the initial management of pre-eclampsia?
-NICE recommend arranging emergency secondary care assessment for any woman in whom pre-eclampsia is suspected
-Women with blood pressure ≥ 160/110 mmHg are likely to be admitted and observed
What is the further management of pre-eclampsia?
-Oral labetalol 1st line, nifedipine if asthmatic
-Delivery of baby is most important and defintive management
What is the first line Abx for mastitis?
-Flucloxacillin 10-14 days - as the most common organism is staphylococcus aureus
-Erythromycin can also be used
If a women is breastfeeding and they have mastitis what should they do?
Continue breastfeeding
What is the first line conservative management of lactation mastitis?
-Analgesia and encouraging effective milk removal to prevent further milk stasis
What is the main cause of lactation mastitis?
Milk stasis, due to overproduction or insufficient removal
Air travel during pregnancy?
> 37 weeks with singleton pregnancy avoid air travel
32 weeks multiple pregnancy
-This is due to the increased risk of venous thromboembolism
What Erbs palsy?
Damage to the upper brachial plexus - resulting in a characteristic pattern of adduction and internal rotation of the arm - with protonation of the forearm
- commonly called the waiter’s tip
What is Klumpke’s palsy?
It occurs due toi damage of the lower brachial plexus and commonly affects nerves innervating muscles of the hand
What is placenta accreta?
Attachment of placenta to the myometrium, due to defective decidua basalis
What is the main risk of placenta accreta?
PPH - as the placenta does not separate properly during labour
What are the risk factors of placenta accreta?
-Previous C section
-Placenta previa
What are the three types of placenta accreta?
-Accreta: chorionic villi attach to the myometrium, rather than being restricted within the decidua basalis
-Increta: Chorionic villi invade into the myometrium
-Percreta: Chorionic villi invade through the perimetrium
How often should pregnant patients with T1DM test their blood glucose levels?
-Multiple times
(Daily fasting, pre-meal, 1 hour post meal, bedtime)
What should be discussed with patient that have intrahepatic cholestasis of pregnancy?
Induction of labour 37-38 weeks as there is a risk of still birth
When is a nuchal scan performed?
11- 13 weeks
What are the causes of increased nuchal translucency on USS?
-Down syndrome
-Congentital heart defects
-Abdominal wall defects
What is the threshold of blood pressure where you woould admit a women?
> 160/110