C-section Flashcards

(57 cards)

1
Q

What are the types of Caesarea section?

A

surgical procedure involving the delivery of a baby through an incision in the abdomen and uterus, performed under spinal anaesthesia, which includes:
*Classic
*Lower segment

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2
Q

What is a classic C-section?

A

longitudinal incision in the upper segment of the uterus. This is the most common type as it is associated with less blood loss, fewer complications, and faster healing.

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3
Q

What is a lower segment caesarean section?

A

horizontal (“bikini line”) incision in the lower, thinner part of the uterus to deliver a baby

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4
Q

What are the absolute indications for Caesarean section?

A

cephalopelvic disproportion
Placenta praevia

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5
Q

What are the indications for c-section?

A

*pre-eclampsia
*post-maturity
*IUGR
*fetal distress in labour/prolapsed cord
*failure of labour to progress
*malpresentations: brow
*placental abruption: only if fetal distress; if dead deliver vaginally
*vaginal infection e.g. active herpes
*cervical cancer (disseminates cancer cells)

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6
Q

What is a category 1 C-section?

A

an immediate threat to the life of the mother or baby. delivery of the baby should occur within 30 minutes of making the decisio

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7
Q

What are the indications for category 1 C-section?

A

*suspected uterine rupture
*major placental abruption
*cord prolapse
*fetal hypoxia
* persistent fetal bradycardia

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8
Q

What is category 2 C-section?

A

maternal or fetal compromise which is not immediately life-threatening.

delivery of the baby should occur within 75 minutes of making the decision

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9
Q

What is a category 3 C-section?

A

delivery is required, but mother and baby are stable

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10
Q

What is a category 4 C-section?

A

Elective caesarean due to patient preference, or a non-acute concern that may cause challenging vaginal delivery but no foetal or maternal compromise

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11
Q

What are the common maternal complications of C-section?

A

*persistent wound and abdominal discomfort in the first few months after surgery
*increased risk of repeat caesarean section when vaginal delivery attempted in subsequent pregnancies
*readmission to hospital
*haemorrhage
*infection (wound, endometritis, UTI)

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12
Q

What are the common foetal complications of C-section?

A

Lacerations

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13
Q

What are the serious complications of C-section to mother?

A

*emergency hysterectomy
*need for further surgery at a later date, including curettage (retained placental tissue)
*admission to intensive care unit
*thromboembolic disease
*bladder injury
*ureteric injury
*death

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14
Q

How does C-section affect future pregnancy?

A

*increased risk of uterine rupture during subsequent pregnancies/deliveries
*increased risk of antepartum stillbirth
*increased risk in subsequent pregnancies of *placenta praevia and placenta accreta)

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15
Q

How does C-section affect future birth planning?

A

Women with single previous C-section can do planned vaginal birth after C-section (VBAC) for pregnant women at over 37 weeks gestation. It has a 70-75% success rate

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16
Q

What is a contraindication for C-section?

A

previous uterine rupture or classical caesarean scar

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17
Q

What is a breech presentation?

A

positioning of the foetus in a longitudinal lie with the buttocks or feet proximal to the cervix and the head near the fundus.

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18
Q

What are the types of breech presentation?

A

Frank breech
Footling breech

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19
Q

What is frank breech?

A

A frank breech is the most common presentation with the hips flexed and knees fully extended

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20
Q

What is a footling breech?

A

A footling breech, where one or both feet come first with the bottom at a higher position, is rare but carries a higher perinatal morbidity

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21
Q

What are the risk factors for breech presentation?

A

*uterine malformations, fibroids
*placenta praevia
*polyhydramnios or oligohydramnios
*fetal abnormality (e.g. CNS malformation, *chromosomal disorders)
*prematurity (due to increased incidence earlier in gestation
* multiple gestation

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22
Q

What is assoicated with breech presentation?

A

Cord prolapse

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24
Q

When to intervene in breech presentation?

A

if still breech at 36 weeks NICE recommend external cephalic version

25
When to offer intervention for breech in multiparous women?
37 weeks
26
When to offer intervention for breech in nulliparous women?
36 weeks
27
What are the absolute contraindications for external cephalon version?
*where caesarean delivery is required *antepartum haemorrhage within the last 7 days *abnormal cardiotocography *major uterine anomaly *ruptured membranes *multiple pregnancy
28
How does external cephalon version work?
an obstetrician uses manual pressure on the mother’s abdomen to turn a breech (feet/bottom first) baby into a head-down position. ECV is usually carried out under ultrasound guidance and with careful CTG monitoring of uterine contractions and foetal heart rate. The mother is given analgesia and tocolytics during the procedure and, following the procedure, anti-D immunoglobulin
29
What are the complications of ECV?
*Transient fetal heart rate changes *Placental abruption *Preterm labour *Premature rupture of membranes *Umbilical cord entanglement and compression *Foetal trauma
30
What is foetal presentation?
Foetal presentation refers to the part of the foetus that lies closest to the cervix and will typically lead during labour and delivery
31
What is the ideal foetal presentation?
Cephalic
32
What is foetal lie?
Foetal lie' is the term which refers to the long axis of the foetus relative to the longitudinal axis of the uterus.
33
What is the most common foetal lie?
Longitudinal
34
What are the alternative foetal lie?
*transverse lie (<0.3% of foetuses at term) *oblique (<0.1% of foetuses at term
35
What is transverse lie?
Sideways; the foetal head is on the lateral side of the pelvis and the buttocks are opposite. the foetus can be either 'scapulo-anterior' (most common) where the foetus faces towards the mother's back or 'scapulo-posterior' where the foetus faces towards the mothers front.
36
Which lie are most foetus in during early gestation?
Transverse, but Most have moved to longitudinal lie by 32 weeks.
37
What are the risk factors for abnormal lie?
*Most commonly occurs in women who have had previous pregnancies *Fibroids and other pelvic tumours *Pregnant with twins or triplets *Prematurity *Polyhydramnios Foetal abnormalities
38
How is abnormal foetal lie diagnosed?
Abdominal examination: the head and buttocks are not palpable at each end of the uterus. The foetus can be felt to be lying directly across the uterus. Ultrasound scan: allows direct visualisation of the foetal lie. Foetal heart rate is also auscultated to assess for distress.
39
What are the complications of abnromal foetal lie?
Pre-term rupture membranes (PROM) Cord-prolapse (20%)
40
What happens with vaginal delivery in abnromal presentation?
Compound presentation with both arm and presenting part birth at the Same time
41
When to intervene with abnromal lie?
After 36 weeks, with external cephalic version for all women who would like vaginal delivery
42
What is a contraindication to external cephalon version?
maternal rupture in the last 7 days multiple pregnancy (except for the second twin) major uterine abnormality Success rate is around 50
43
What position determines foetus lie?
*Uterine shape and size *Amniotic fluid volume *Foetal movements and growth
44
What can occur with transverse lie?
Shoulder presentation
45
What is used to determine foetus position in the womb?
Leopold manoeuvres with Clincial palpation of abdomen Auscultation of foetal heart rate Pelvic examination Ultrasound
46
Which abnromal lie requires C-section?
Transverse or oblique lie
47
What is the maximum tie external cephalon verdion can e done?
early labour, the membranes have not ruptured, and there are no signs of foetal distress or other contraindications
48
What CTG finding indicates necessity of C-section?
the late decelerations which are a worrying sign especially in the context of foetal bradycardia, where instrumental delivery is not possible
49
What are c sections associated with?
Placenta accreta
50
What is a classic C section scar?
Vertical scar
51
What determines baby position?
occiput (back of head) to pelvis
52
What drug can be used to improve success rate of external cephalic version!
Terbutaline due to both its beta agonism mimetic effect inhibiting oxytocin which relax the uterus
53
What placental emergency is associated with previous c sections?
Uterine rupture -> sudden onset of abdominal pain and loss of contractions during labour
54
How often to take observations post c-section?
Every 30 minutes for the first 2 hours After this, adjust according to maternal stability
55
What is frank breech?
legs are fully extended up to the shoulders and the presenting part is the buttocks
56
What is footling breech?
one or both legs are fully extended towards the pelvic inlet, with the foot or feet being the presenting part
57
What is complete breech?
the hips and knees are both flexed and the presenting part is the buttocks