Mrcog Flashcards
Notes
Risk of death from acute infection in hepatitis B
1%
Risk of death from chronic infection in hepatitis B
25% from cirrhosis and liver cancer
How many of chronic carriers in hepatitis B get cirrhosis and liver cancer
10-30%
How effective is hepatitis B vaccine in eliminating infection
90%
How many percentage of acute infection are asymptomatic /mild with no jaundice
60-70%
Risk of becoming chronic carrier in hepatitis B
Infants 90%,Children <5 - 30% and adults 2-6%
Vertical transmission of hepatitis B in first trimester
10%
Risk of vertical transmission of Hepatitis B in third trimester
Upto 90%
UK prevalence of Hepatitis B in pregnancy
0.1-1%
What’s chronic carrier status in hepatitis B
HBsAg more than 6 months
Nuvaring composition
EE 15 mcg daily +etonorgestrel 120 mcg daily
Pre-eclampsia risk of recurrence
15% (1 pregnancy affected), 30%(2 previous pregnancies affected)
Delivery due to pre-eclampsia between 20-28 weeks recurrence risk
40%
Recurrence risk pre-eclampsia if between 29-32 weeks
30%
Pre-eclampsia Recurrence risk if delivery between 33-36 week
20%
Risk of recurrence of pre-eclampsia if delivery was 37+
10%
If very preterm delivery due to pre-eclampsia 27 weeks then recurrence rate
50-55%
Recurrence rate of pre-eclampsia if delivery was < 34 wks
25%
Recurrence rate of pre-eclampsia if delivery was < 28 weeks
50%
Sensitivity of USG for NTD
100%
USG can detect this percent of cardiac defects
50-60%
USG can detect this percent of trisomies markers
30-40%
How many percentage of NTD are detected by serum alphafetoprotein
85% as compared to almost 100% of USG
CS rate in IDDM
30-50%
No. 1 killer in IDDM
Fetal abnormalities
Does risk of iugr correlate with HbA1C level
No
How effective is anti D?
99%
For dating which parameters are used?
CRL at 9 weeks (for early dating) and cerebellar diameter at 22 week
How effective is aspirin in reducing fetal and maternal morbidity?
15% reduction in pre-eclampsia risk and 15% reduction in fetal death
How well does AC predict SGA?
AC <10th percentile predicts 85% of SGA
HELLP more common in multiparty than primipara?
True
Incidence of HELLP in antepartum period
70%
Incidence of HELLP in postpartum period
30%
What is overall recurrence risk of HELLP
20-25%
What is risk of developing pre-eclampsia with HELLP syndrome?
55%
What is the risk of recurrent placental abruption after 1 abruption?
5-16%
What is the risk of recurrent placental abruption after 2 previous abruption?
25%
Risk of recurrence after inversion in subsequent pregnancy?
Upto 50%
What is the rate of infection complicating LSCS wound?
5%
Which is most common tumor of newborn?
Sacral coccygeal teratoma