March 🙃 Flashcards
What is the incidence of cerebral palsy in babies born between 22 & 27 weeks?
14.6%
What is the risk of delivery before 28/40 with cervical length 20-25mm?
25%
What is the incidence of bowel obstruction following radiotherapy for cervical cancer?
10-15%
In vaginal hysterectomy, what is the first structure to be cut & sutured for vaginal cuff suspension?
Uterosacral ligaments
What are the risks of vertical transmission of parvovirus B19?
a) <15/40: 15%
b) 15-20/40: 25%
c) term: 70%
How do the risks change at fully CS compared to 1st stage, of:
a) intraoperative trauma
b) maternal haemorrhage
c) perinatal asphyxia?
a) more than double
b) 2-3x
c) 1.5x
If a patient with an IUCD becomes pregnant, what is the incidence of an ectopic?
1:20
What is the success rate of VBAC after CS for fetal distress?
70-75%
What are the risk factors for puerperal genital haematoma?
- Nulliparity
- Prolonged 2nd stage
- Instrumental birth
- Baby > 4kg
- Genital tract varicosities
- Maternal age ≥ 30
What is the incubation period of parvovirus?
Average 7 days
Range 4-14 days
What is the incidence of premature ovarian failure?
1%
When should delivery be planed for uncomplicated monochorionic twins?
36-37/40
How often should premenopausal cysts 50-70mm be followed up?
Annually
What is the success rate of VBAC after CS for fetal malpresentation?
80-85%
What % of women need a 2nd methotrexate injection for medical Mx of an ectopic?
14%
What medications for menopause should not be given with Tamoxifen?
- Fluoxetine
- Paroxetine
- St John’s wort
- Soy isofavones
What % of UK obstetric admissions are complicated by AKI?
1.4%
What is the lifetime risk of haemorrhage from a hepatic adenoma?
27%
What are the high risk factors for PET & how is this used for decision for aspirin?
- Hypertensive disease during previous pregnancy
- CKD
- SLE or APS
- Diabetes (T1 or T2)
- Chronic hypertension
Give aspirin if 1 risk factor
What are the moderate risk factors for PET & how are these used for decision for aspirin?
- 1st pregnancy
- Age ≥ 40
- Pregnancy interval > 10 years
- Family hx of PET
- Multi-fetal pregnancy
Give if 2 risk factors
What is the incubation period for rubella?
Average 14 days
Range 12-23 days
What % of neonates need SCBU admission following CS at full dilation?
11%
What % of endometrial hyperplasia without atypia regress to normal endometrium?
75-80%
What % of stillborn babies have a chromosomal abnormality?
6%
In epilepsy, what is the risk of a tonic-clonic seizure during labour & the 24 hours after birth?
1-4%
What is the incidence of uterine perforation in ERCP for PPH?
5.5%
What % of patients with acute fatty liver of pregnancy require renal replacement?
3.5%
In asymptomatic placenta praevia at 32/40, what action should be taken?
Corticosteroids from 34-36/40
What is the incidence of PE in pregnancy & the puerperium?
1.3 per 10,000
