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MRCOG part2 > STATS > Flashcards

STATS Flashcards

1
Q

Appendicitis in Pregnancy

A

1:1500

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2
Q

Vasectomy

A

1: 2000

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3
Q

Female sterilisation

A

1: 200

hysteroscopic - 2: 1000

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4
Q

Heterotopic pregnancy

A

1: 30000
8: 1000 with ART

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5
Q

Maternal Cardiac arrest

A

1: 12500 / 1: 30000

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6
Q

Coil Expulsion

A

1: 20

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7
Q

Coil Perforation

A

1-2: 1000

Increased risk by 6-8 times if between 48 hours or 6 weeks following pregnancy

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8
Q

Female condom failure

A

22%

Male 18%

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9
Q

Rate of twin pregnancies

A

3%

Note maternal mortality is 2.5 higher than general population

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10
Q

Turners Syndrome

A

1: 2500 - 1: 3000

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11
Q

Stress Urinary Incontinence

A

1: 3

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12
Q

Pelvic floor prolapse

A

1: 9

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13
Q

Combined test detection rate

A

90%

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14
Q

Reversion to breech following ECV

A

3%

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15
Q

Risk of shoulder dystocia

A

<1% (0.58 - 0.7%)

If previous then x 10 higher

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16
Q

Risk of shoulder dystocia after 1 previous

A

<1% (0.58 - 0.7%)

If previous then x 10 higher

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17
Q

Risk of endometrial hyperplasia with granulosa cell tumour

A

40% risk of EH

10-15% risk of endometrial cancer

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18
Q

Risk of endometrial cancer with granulosa cell tumour

A

40% risk of hyperplasia

10-15% risk of endometrial cancer

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19
Q

Risk of uterine rupture

A

1: 200 - 0.5% or 0.2-0.7%

if labour augmentation risk 2-3x higher

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20
Q

Risk of repeat LSCS with VBAC

A

1: 4

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21
Q

Fetal laceration at LSCS

A

2%

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22
Q

Risk of OASIS

A

2.9%
6.1% - Primip
1.7% - multip
Recurrence 5-7%
5% with VBAC
60-80% asymptomatic at 12 months

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23
Q

Risk of OASIS in multip

A

2.9%
6.1% - Primip
1.7% - multip
Recurrence 5-7%
5% with VBAC
60-80% asymptomatic at 12 months

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24
Q

Risk of OASIS in primp

A

2.9%
6.1% - Primip
1.7% - multip
Recurrence 5-7%
5% with VBAC
60-80% asymptomatic at 12 months

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25
Q

Risk of OASIS after previous

A

2.9%
6.1% - Primip
1.7% - multip
Recurrence 5-7%
5% with VBAC
60-80% asymptomatic at 12 months

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26
Q

Post-partum Psychosis

A

1-2: 1000

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27
Q

Post-partum psychosis in bipolar

A

1: 4

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28
Q

Risk of twins delivering before 37 weeks

A

60%

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29
Q

Risk of triplets delivering before 35

A

75%

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30
Q

Rate of MCDA

A

30% OF TWINS

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31
Q

Rate of MCMA

A

1% of twins

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32
Q

Uterine perforation in EVAC

A

1: 1000

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33
Q

VBAC success rate

A

72-75%

Px VD 85-90%

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34
Q

Risk of repeat ectopic

A

18.5%

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35
Q

Mitochondrial disorders

A

1: 5000 - 1: 8000

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36
Q

GBS positive risk of neonatal transmission

A

1: 400 ( 2-3: 1000)

If GBS positive previous pregnancy and not tested in current pregnancy risk is 1:800

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37
Q

Risk of cord prolapse

A

0.1 - 0.6%

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38
Q

Diabetes Insipidus

A

2-4 : 100, 000

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39
Q

Laproscopic abdominal cerclage risk of conversion to open

A

10%

> 85% successful pregnancy rate

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40
Q

Primary herpes infection neonatal infection risk

A

41%

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41
Q

Recurrent Herpes risk of neonatal infection

A

0-3%

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42
Q

Placenta praevia after 1 LSCS

A

1 LSCS 1%
2 LSCS 1.7%
3 LSCS 2.8%

4-8 / 1000 - praevia / accreta

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43
Q

Placenta praevia after 2 LSCS

A

1 LSCS 1%
2 LSCS 1.7%
3 LSCS 2.8%

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44
Q

Placenta praevia after 3 LSCS

A

1 LSCS 1%
2 LSCS 1.7%
3 LSCS 2.8%

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45
Q

VERTEX

A

SUBOCIPITO-BREGMATIC 9.5cm

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46
Q

FACE

A

SUBMENTO-BREGMATIC 9.5cm

47
Q

OP

A

OCCIPTIO-FRONTAL 11.5cm

48
Q

BROW

A

MENTO-VERTICAL 13cm

49
Q

Risk of chorioamnionitis following amniocentesis

A

1: 1000

Miscarriage risk 1%

50
Q

Risk of miscarriage following amniocentesis

A

Miscarriage risk 1%

51
Q

Complications in planned LSCS

A

16 : 100

24: 100 in LSCS performed in labour
33: LSCS at 9-10cm dilated

52
Q

Complications in LSCS performed in labour

A

24: 100
33: LSCS at 9-10cm dilated

16: 100 in planned LSCS

53
Q

Emergency hysterectomy in LSCS

A

7-8: 1000

11: 100 with placenta praevia

54
Q

Bladder injury at LSCS

A

1: 1000

55
Q

Ureteric injury at LSCS

A

1: 10000

56
Q

Death at LSCS

A

1: 12,000

57
Q

Risk of haemorrhage at LSCS

A

5: 1000

58
Q

Risk of infection at LSCS

A

6: 100

59
Q

Emergency hysterectomy with placenta praevia

A

11: 100
27: 100 if previous section

60
Q

VTE in placenta praevia at LSCS

A

3: 100

61
Q

Bladder injury / ureteric at LSCS in plaenta praevia

A

6: 100

62
Q

Future placenta praevia

A

23: 1000

63
Q

Massive obstetric haemorrhage with placenta praevia

A

21: 100

64
Q

Very common

A

1: 1 - 1: 10 (family member)

65
Q

Common

A

1:10 - 1: 100 ( person in street)

66
Q

Uncommon

A

1: 100 - 1: 1000 ( person in village)

67
Q

Rare

A

1: 1000 - 1: 10000 ( person in small town)

68
Q

Very rare

A

< 1: 10,000 ( person in large town)

69
Q

Risk of serious injury at diagnostic lap

A

2: 1000

15% of bowel injuries may not be noticed at time of procedure

70
Q

Risk of adhesions under the umbilicus following low transverse incision

A

23%

50 - with midline

71
Q

Risk of adhesions under the umbilicus following midline laparotomy

A

50%

23% with low transverse

72
Q

Percentage of bowel injuries not recognised at time of laparosopy

A

15%

73
Q

Percentage of women who could die during laparsocop

A

3-8: 100 000

74
Q

Percentage of women under MTX for ectopic requiring surgery

A

10%

75
Q

OASIS with vacuum

A

1-4: 100
1: 10 - vulval tear

8-12: 100 - forceps
1: 5 - vulval tear

76
Q

OASIS with foceps

A

8-12: 100
1: 5 - vulval tear

1-4: 100 - vacuum
1: 10 - vulval tear

77
Q

Cephalohaematoma

A

Bleed limited to periostium
Does not cross suture lines
1-12 : 100

78
Q

Subgaleal haematoma

A 
Most serious 
Crosses suture lines
Between periostium and aponeurosis 
Puffy eyelids 
3-6 : 100
79
Q

Common risks with 3/4th tear

A

faecal urgency 26: 100
Perineal pain 9: 100
Wound Infection 8: 100

80
Q

Intrauterine adhesions following miscarriage

A

19% ( evac 16 - 18%)

81
Q

Vaginal surgery for prolapse damage to bladder

A

2: 1000

82
Q

Vaginal surgery for prolapse damage to bowel

A

5: 1000

83
Q

Damage to bladder or ureter at TAH

A

7: 1000

Bowel 4: 10 000

84
Q

TAH haemorrage

TAH return to theatre

A

23: 1000
7: 1000

85
Q

COHORT

A

Group sharing common characteristics
For PROGNOSIS study
Followed over time to see how many will develop the outcome

86
Q

CROSS-SECTIONAL

A

Diagnostic tests

Characteristics of a population / sample observed at a point in time

87
Q

CASE-CONTROL

A

Studies association of disease compared with past exposure

88
Q

Fetal genotyping for red cell antibodies

A

16/40 for all except k - 20 weeks

89
Q

When to refer to FMU with antibody titres - D, C, K

A

D - > 4iu
C - > 7.5iu
K - Any level

90
Q

TTTS affects ? of MC pregnancies

A

15%

91
Q

Tx anaphylaxis

A

500mcg , 0.5ml of 1: 1000 adrenaline IM

92
Q

Breech pregnancy rate

A

3=4%

93
Q

Recurrence of breech in future pregnancy

A

10%

94
Q

Spontaneously revert to cephalic after 36/40

A

3-7%

95
Q

Infectious period of VZV

A

INCUBATION 1-3 Weeks, infectious 48 hours before rash and until lesions crusted over.

96
Q

Prevelence of primary chicken pox in pregnancy

A

3: 1000

97
Q

Chemotherapy in breast cancer

A

Anthracyclines - Doxorubicin , Epirubicin

98
Q

Agents in breast cancer associated with gonadal toxicity

A

Alkylating agents - cyclophosphamide

99
Q

VWD

A 
Chromosome 12
Type 1+2 Autosomal dominant 
Type 3 autosomal recessive 
Associated with a prolonged APTT 
vWF AND FACTOR VIII should be checked pre invasive procedure. VIII >50 
secondary PPH 25%
100
Q

encapsulated bacteria

A

neisseria meningitis, strep pneumoniae, h. influenzae B

101
Q

Normal NT thickness

A

<3.5mm

102
Q

High risk screening

A

1: 150

103
Q

Antenatal appointments

A

Nullip 10

Multip 7

104
Q

PET RF

A 
BMI > 30 
FH PET 
Px PIH / PET 
PRIMIP 
>10 YEARS SINCE LAST DELIVERY 
AGE >40 
MULTIPLE PREG 
Pre-existing vascular disease / renal disease
105
Q

Labour pains

A

T10 - L1 inferior hypogastric plexus

106
Q

Placental abrution recurrence

A

4.4% - 1 preg

19 - 25% - 2 preg

107
Q

Emergent bleed with placenta praevia

A

35 - 4.7%
36 - 15%
37 - 30%
38 - 59%

108
Q

vasa praevia

A

1: 1200-5000
Fetal mortality 60%
A vessel running in the free placental membranes within 2cm of the cervix

109
Q

VTE in pregnancy

A

1: 1000
Risk is 4-6 times greater in pregnancy
5 x greater risk post-natal than antenatal

110
Q

Recurrent VTE in preg

A

2-11 %

111
Q

Conditions requiring higher doses of LMWH

A

VTE and antithrombin deficiency
VTE associated with APS
VTE recurrently

112
Q

Placenta acreta in placenta praevia with previous LSCS

A

1 LSCS - 11-14%
2 LSCS - 23-40%
UPTO 67 with >5

113
Q

Risk of death - diagnostic lap

A

3-8 : 100, 000

MRCOG part2 (1 decks)

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