Week 235 - Pregnancy 2 Flashcards

1
Q

Week 235

What is Labetalol used for?

A

The treatment of high blood pressure.

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2
Q

Week 235

What are the foetal indications for operative vaginal delivery?

A

Foetal compromise. If it looks like baby is in crisis, call ghostbusters (AKA the guys with the suction cup and forceps)

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3
Q

Week 235

What are the Maternal indications for operative vaginal delivery?

A

Basically anything seriously bad with momma Bear

  • Spinal cord damage or injury
  • cardiac high risk or injury
  • Hypertensive crisis AKA eclampsia
  • Stuff like myasthenia gravis

(excuse the lack of my normal loquacity, just, it’s 3am and I’m at the point where I think I will tear my eyes out soon).

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4
Q

Week 235

What are the “inadequate progress” indications for operative vaginal delivery?

A

Nulliparous women:

  • Lack of progress after 3 hours with regional anaesthesia
  • Lack of progress after 2 hours without regional anaesthesia

Multiparous women:

  • As above, but one hour less for each.
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5
Q

Week 235

What are C.A.B requirements for instrumental vaginal delivery?

A
  • Cervix Fully dilated
  • Appropriate analgesia
  • Bladder empty
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6
Q

Week 235

What position is this? What is the best appropach for operative surgical delivery (method/tools used)?

A

Direct Occiput anterior

Can use forceps of ventouse

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7
Q

Week 235

What position is this? What is the best approach for operative surgical delivery (method/tools used)?

A

Direct Occiput posterior

Often accompanied by extension of the fetal head presenting part too large
Aim for rotation of 180º with the ventouse or with rotational forceps

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8
Q

Week 235

What position is this? What is the best approach for operative surgical delivery (method/tools used)?

A

Left Occiput anterior

Forceps or ventouse

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9
Q

Week 235

What position is this? What is the best approach for operative surgical delivery (method/tools used)?

A

Left occiput posterior

Often accompanied by extension of the fetal head presenting part too large
Aim for rotation of 180º with the ventouse or with rotational forceps

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10
Q

Week 235

What position is this? What is the best approach for operative surgical delivery (method/tools used)?

A

Left Occiput Transverse

Usually due to insufficient descent of head to cause rotation
Ventouse to achieve descent, and hopefully rotation
Rotational forceps to achieve rotation in situ and then descent

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11
Q

Week 235

What position is this? What is the best approach for operative surgical delivery (method/tools used)?

A

Right Occiput Anterior

Use Forceps or Ventouse

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12
Q

Week 235

What position is this? What is the best approach for operative surgical delivery (method/tools used)?

A

Right Occiput Posterior

Often accompanied by extension of the fetal head presenting part too large
Aim for rotation of 180º with the ventouse or with rotational forceps

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13
Q

Week 235

What position is this? What is the best approach for operative surgical delivery (method/tools used)?

A

Right Occiput Transverse

Usually due to insufficient descent of head to cause rotation
Ventouse to achieve descent, and hopefully rotation
Rotational forceps to achieve rotation in situ and then descent

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14
Q

Week 235

Significant vaginal and perianal trauma for th mother occurs with which operative vaginal delivery intervention?

A

Forceps.

Are you surprised?

Have you SEEN how HUGE they are? !

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15
Q

Week 235

What is the name given to this particular incision site for C section?

A

Pfannensteil

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16
Q

Week 235

What are the absolute indications for C section?

A

ABSOLUTE INDICATIONS

  • Placenta praevia
  • Severe antenatal fetal compromise
  • Uncorrectable abnormal lie
  • Previous classical caesarean section
  • Pelvic deformity
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17
Q

Week 235

What are the relative indications for C section?

A

RELATIVE INDICATIONS

  • Breech presentation
  • Diabetes mellitus and other medical diseases
  • Previous caesarean sections
  • Older nulliparous women
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18
Q

Week 235

What is a dichorionic-diamniotic (DCDA) twinning?

A

When each baby of the twin has its own
placenta
, there will be two chorions and two
amnions and it is known as dichorionic
-
diamniotic (DCDA) twinning.

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19
Q

Week 235

What is a monochorionic diamniotic (MCDA)
twinning?

A

When each baby of the twin pregnancy
has its own amniotic sac, but share a
single placenta
, there will be one chorion
and two amnions and it is known as
monochorionic diamniotic (MCDA)
twinning.

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20
Q

Week 235

What is a monochorionic-monoamniotic
(MCMA) twinning?

A

When the twin babies share both the
amniotic sac and the placenta
there will be
one chorion and one amniotic sac and it is
known as monochorionic
-
monoamniotic
(MCMA) twinning.

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21
Q

Week 235

What are the risks associated with multiple chorionicty (more than one placenta)?

A

Miscarriage,
Congenital abnormalities
Preterm,
IUGR,
Perinatal loss,
TTT

22
Q

Week 235

Which clotting factors are increased in pregnancy?

A
  • I
  • VII
  • VIII
  • IX
  • X
  • XII
23
Q

Week 235

What are the symptoms of threatened miscarriage?

A

Bleeding, foetus alive, OS closed.

24
Q

Week 235

What are the symptoms of inevitable miscarriage?

A

Bleeding heavier, foetus may be alive, OS open

25
Q

Week 235

What are the symptoms of incomplete miscarriage?

A

Bleeding, Some foetal parts passed, OS open

26
Q

Week 235

What are the symptoms of complete miscarriage?

A

All pregnancy tissue passed, bleeding settling, OS closed

27
Q

Week 235

What are the symptoms of missed miscarriage?

A

Foetus not developed or died in utero. OS closed. Often
asymptomatic

28
Q

Week 235

What are the symptoms of septic misccariage?

A

Infected uterine contents. Offensive loss, tender uterus
.

29
Q

Week 235

When should Anti-D prophylaxis be administered, and why?

A

Should be administered to all rhesus negative mothers after all surgical and medical intervention regardless of gestation, within
72hrs of bleed.

Spontaneous miscarriages after 12+0 weeks gestation should be administered anti-D. 250 IU should be given up to 19 +6 weeks.

500 IU after 20+0 weeks.

Why?

Mothers antibodies are against babies blood. Bad for baby.

30
Q

Week 235

What is placental abruption?

A

Can be seen or be hidden.

Separation of the placenta from the wall of the womb during pregnancy, especially when it occurs prematurely.

31
Q

Week 235

What are the clinical signs of placenta praevia?

A
  • Asymptomatic
  • Painless
  • bright red bleed
  • Malpresentation/highpresenting part
32
Q

Week 235

What is Placenta Accreta?

A

This is a firmly adherent placenta.

33
Q

Week 235

What is Placenta increta?

A

In this condition, the placenta invades the myometrium

34
Q

Week 235

What is Placenta Percreta?

A

In this condition, the placenta invades through to the serosa and beyond.

35
Q

Week 235

What is Vasa Praevia?

A

In this condition, the placental vessels overlie the cervix.

36
Q

Week 235

What make up the HEELP syndrome?

A
  • Haemolysis,
  • Elevated Liver enzymes,
  • Low platelet
37
Q

Week 235

What are the aetiologies of pre-existing (chronic) hypertension in pregnancy?

A
  • Essential hypertension - idiopathic
  • Chronic renal disease - present in 5% of hypertensive disorders of pregnancy
38
Q

Week 235

What is gestational hypertension?

A
  • HTN arising after 20 weeks (2nd trimester), and resolving within 3 months of delivery
  • No symptoms of pre-eclampsia
39
Q

Week 235

Pre-eclampsia is hypertension arising after how long?

A

20 weeks

40
Q

Week 235

Severe pre-eclampsia is pre-eclampsia with one or more of (list):

A
  • SBP/DBP > 160/110
  • Pulmonary oedema
  • Cyanosis
  • Persistent headache
  • Thrombocytopaenia
  • Severe proteinuria (>5g/24hrs)
  • Oliguria (<400mls/24hrs)
  • Liver pain/impaired hepatic function
  • >foetal growth/placental abruption
41
Q

Week 235

What is the Pathophysiology of HELLP syndrome?

A

Impaired trophoblastic invasion of maternal spiral arteries

  • Placenta pre-disposed to hypoxia
  • >vasodilator/anticoaglant production (i.e. prostacyclin)
  • Increased angiogenic and prothrombic factors produced (i.e. thromboxane)
  • Widespread coahulation causing systemic effects
  • Reduced GFR therefore renal injury
42
Q

Week 235

How does pre-eclampsia present?

A
  • Usually after 34 weeks
  • often Asymptomatic
  • Neuro - headache, visual disturbance
  • Epigastric/RUQ pain
  • Oliguria, cloudy urine
  • High blood pressure
43
Q

Week 235

What is Eclampsia?

A

This is convulsion associated with pre-eclampsia
.

May occur before OR AFTER delivery.

Prophylaxis = low dose aspirin from early pregnancy for those with risk factors.

44
Q

Week 235

What is Labetalol?

A

This is an anti-hypertensive that can be used to treat eclampsia. It is a Beta-Blocker, which inhibits adrenergic receptors (these< peripheral vascular resistance)

45
Q

Week 235

What is Methyldopa?

A

This is antihypertensive drug used in the treatment of pre-eclampsia. It reduces dopamine production.

46
Q

Week 235

What is Nifedipine?

A
  • This is an anti-hypertensive medication used in the treatment of pre-eclampsia. It it a calcium channel blocker, which inhibits vascular muscle contraction.
47
Q

Week 235

What is hydralazine?

A

This is an antihypertensive medication used in the treatment of pre-eclampsia. IT blocks Calcium channels, but isn’t a calcium channel blocker!

48
Q

Week 235

Are ACE inhibitors safe for use in pregnancy?

A

NO!

49
Q

Week 235

What is Magnesium sulphate?

A

This is used for severe preeclampsia/eclampsia

Seizure prophylaxis (mechanism unknown!)

Given IV: 4mg Loading dose, followed by 1mg/hr, with 2mg after convulsions.

50
Q

Week 235

When is phenytoin/Lorazepam used in pre-eclampsia/eclampsia?

A

May be used as 2nd line treatment if non responsive to MgSO4 (post 34 weeks if possible)

51
Q

Week 235

What is Betamethasone? Why is it used in premature birth?

A

This steroid is used to stimulate foetal lung maturation and surfactant production

NB: Ergometrine is contraindicated - increase BP.

52
Q
A