Week 8 Flashcards
what are some examples of Malpresentations of a baby in utero?
Breech (we went through this last week) Occipito-posterior position Face presentation Brow presentation Transverse or oblique lie
What is the occipitoposterior position (OP)
Babies back to maternal back
What is the presentation of the occipitoposterior position (OP)
- As per normal labour
- May feel need to push earlier
- Foetal head is only delivered once face is cleared of symphysis pubis
- Can lead to extensive perineal tearing
- Painful ++
What are the risk factors for the occipitoposterior position (OP)
mum sitting hip below knee
How do you manage the the occipitoposterior position (OP)
Spontaneous rotation occurs 90-95% of the time
- manage as per normal labour
What is Face Presentation?
- Complete or hyperextension of the foetus’ neck
- Face is presenting part
What are the risk factors for Face Presentation?
- Macrosomicfoetus
- Contracted pelvis
- Umbilical cord wrapped around the neck a few times
- OP position
- Large neck due to cystic hygroma
What is the presentation of Face Presentation of baby in utero?
- Face in the introitus
- Will be bruised and oedematous (prepare mum)
- can be confused with a breech pattern
How do you manage a face presentation?
Mentoanterior:
- deliver as per normal
- Prepare for extensive perineal tearing and trauma
- Prepare for haemorrhage
- Prepare for resus of neonate
Mentoposterior:
- Can’t be delivered vaginally
- Needs c-section
- Rapid transport
What is mentoanterior and mentoposterio in face presentation?
Mentoanterior - chin anterior
Mentoposterior - chin posterior
what is brow presentation of the baby during labour?
Less “extreme” extension of neck compared to face presentation
How do you manage a brow presentation?
May move to a face presentation (unlikely)
Cannot be delivered vaginally –needs a C-section
Management: Rapid transport (consult with PIPER)
What is Transverse or oblique lie (shoulder presentation)
Long axis of mum and foetus are at right angles
The baby is sideways
What are the risk factors for Transverse or oblique lie (shoulder presentation)
- Lax uterine muscles
- Placenta praevia
- Preterm foetus
- Twins +
- Grand multiparity
How does Transverse or oblique lie (shoulder presentation) present?
- shoulder
- cord prolapse
What are some possible complications of Transverse or oblique lie (shoulder presentation)
can lead to uterine rupture
What is a cord prolapse
- The cord lies ahead of the presenting part
- Can be occultor overt
- Can compromise foetalcirculation-hypoxia-brain injury-death
What are the causes/risk factors of cord prolapse?
Multiparity High head Prematurity Malpresentations Polyhydramnious Low birth weight Placenta praevia Pelvic tumours Foetalcongenital abnormalities
How do you manage a cord prolapse on scene before transport (delivery not imminent)?
If delivery not imminent:
- Position in all fours with head to floor immediately
- >Genu-pectoral position - When ready -walk patient to stretcher or put patient straight on stretcher avoid carry chair
- Administer oxygen –time critical
How do you transport a cord prolapse patient (delivery not imminent)?
Exaggerated Sims position
–For transport
–Ensure patient is well secured
What is the overall management plan for a cord prolapse patient (delivery not imminent)?
Document time of cord prolapse Transport in exaggerated SIMs position Oxygen high flow PIPER and MICA Rapid transport with pre-alert Pain relief if required Cord Management:-Insert cord into vagina using fingers only & try not to touch further-Keep cord warm and moist If presenting part compressing cord – Insert fingers into vagina & hold/push presenting part off cord Mum will require urgent c-section
What is the overall management plan for a cord prolapse patient (DELIVERY IMMINENT- OMGGGGG)?
PIPER
MICA
Ask mother to push through contractions –need to deliver foetusASAP
Give pain relief
Assist delivery as per normal keep an eye on cord and compression
Neonate will most likely require resus –prepare
Rest and reassure mum ++
What are the risk factors of twins?
In vitro fertilisation/assisted fertility Previous history of twins+ Familial history Multiparity Maternal age >45
What are some complications associated with twins?
Prematuriy Foetal growth restriction (FGR) Cerebral palsy Still birth Antepartum and postpartum haemorrhage Thromboembolic disease
How to manage delivery of twins?
Transport if able-if not: Call for back up, MICA, PIPER Notify hospital Oxygen for 2ndtwin
If in imminent delivery - –deliver first twin as singleton –Identify neonate as first twin Clamp cord in two places & cut cord Do not attempt to deliver placenta Do not allow the placental end to bleed –the second twin may be attached
Transport to hospital if able –before second delivery Deliver 2ndbaby as singleton Cut cord & clamp Prepare to resuscitate Identify as second twin –Identify cord clamps Check for third foetus Check for PPH
What do you do after the delivery of both twins in the management of this patient?
Attempt to transport Allow 3rdstage to remain in-utero –Beware of risk of hemorrhage Check fundus is firm & remains so –Blood loss minimal
Only if bleeding or “boggy fundus” –Deliver 3rdstage with cord traction –Give oxytocic if available •Syntocinonor Mysoprostyl Keep fundus firm & central
What is pre-term labour?
Labour prior to 37 weeks.
Very premmy = <28 weeks
How can preterm labour present?
Mother will complain of labour
–regular contractions (may or may not have pain)
–cramp like period pain or backache.
•Manage as per labour
What are the causes of preterm labour?
- Infection
- > Haematogenous
- > Latrogenic
- Stress
- > Maternal
- > foetal
- Multiple pregnancy
- Uterine distension
- Placental abruption
- Cervical weakness
What are the risk factors for pre-term labour?
Previous premature delivery Twins+ Smoker Low SES Previous cervical incompetence Known SROM in current pregnancy Environmental stress Alcohol and drug use Poor nutrition Interestingly…. Marital status
How to you manage a preterm labour in pre-hospital environment (delivery not imminent)?
Reassure mother PIPER & MICA Good obstetric history Pain relief Mother in lateral position if transporting
If >34 weeks (AV) –basic care
If <34 weeks gestation (in AV) consult to give GTN via 50mg patch on abdomen
Notify hospital -Transport ?NICU
–Dependent on gestation
How to you manage a preterm labour in pre-hospital environment (DELIVERY IS imminent GAHHHH)?
Back up –second crew + MICA + PIPER Prepare for delivery Prepare for resuscitation Risk of cord prolapse Breech presentation common prior to 34 weeks Keep neonate warm –If very prem. place baby in baking bag –Wrap head Observe ABC’s refer neonatal resus lecture
What is PROM (premature rupture of membranes)
Occurs in approx. 2% of all pregnancies 50% will deliver within 1 week & 75% within 2 weeks May occur during the ante-natal period –Prior to the commencement of labour –At any gestation
History of gush of fluid
–May be sudden → forewaters
– May be slow → hindwater
What are some complications of PROM?
Can progress to delivery of prem. infant
Infection risk
Prolapsed cord
How do you manage PROM?
- PIPER
- Not in labour
–> R&R +++; Oxygen; pain relief is not usually required - Transport
What is an Episiotomy?
Episiotomy –surgical incision of perineum to aid vaginal birth
What is an instrumental delivery?
Forceps
- Indicated when there is foetal or maternal distress or issues associated with the 5 P’s
- C/I in patients whose cervix isn’t fully dilated-Large metal forceps are placed inside the vagina on either side of the foetus’ head
- Traction is applied with each contraction to effectively pull the foetus out (normally within 3 pulls)
What are the risks of operative (instrument) delivery
- High risk of trauma to mum and foetus
- High risk of haemorrhage due to tearing (even in the presence of episiotomy)
What is a caesarean section?
Incision through mums abdo(laparotomy) and uterus (hysterotomy)
What are the indications for a C section
Indications
- Previous c-section
- Immediate life threat
- Elective
- Failure to progress in Labour
- Malpresentation
What are some complications of c sections?
Haemorrhage Infection UTI Transient tachypnoea is neonate Organ damage (bowel/bladder) VTE Psychological