Birth trauma of the newbom. Flashcards

(50 cards)

1
Q

what is caput succedunum ?

A

it is a diffuse edematous often dark swelling

the edema is often between th periosteum and the overlying skin
during labour the high pressure on the head ceases the venous drainage

it usually extends across the midlines and the suture line

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2
Q

when is caput succedaneum usually seen ?

A

prolonged labour in full term or preterm infants

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3
Q

what is the treatment for caput succedaneum ?

A

the edema vanishes within couple of days without anything.

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4
Q

what is cephalohematoma ?

A

haemorrhage underneath the periosteum , from the damage of the subperiosteal vessels

because the swelling is periosteal the swelling is restricted to the boundaries of the bones unlike caput succedenum - it does not cross the suture lines

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5
Q

what can be seen under the cephalohematoma ?

A

a linear skull fracture

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6
Q

what causes cephalohematoma

A

prolonged labour

instrumental delivery such as forceps and suctioning

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7
Q

what is the treatment of cephalohematoma ?

A

typically resolves spontaneously but recommended to aspirate the blood to reduce the calcification especially is there is a linear fracture beneath the cephaloheamtoma may organise and calcify and form a central depression

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8
Q

what are the other common haemorrhage injuries ?

A

retinal and subconjuctval haemorrhage which usually resolves on its own

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9
Q

why does spinal cord and spinal injuries occur in neonates

A

result of hyperextended posture

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10
Q

fractures of the vertebrae and spinal cord innjuries leading to neurological dysfunction have signs such as ?

A

absence of deep tendon reflexes
absence of response to painful stimuli

if not fatal with time - bowel and bladder problems
spasticity
hyperreflexia

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11
Q

what causes brachial plexus injury ?

A

traction of the neck

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12
Q

what do you call the brachial plexus paresisi of C5-C6 ?

A

erb - Duchenne paralysier

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13
Q

what are the signs and symptoms of C5-C6 paralysis ?

A

cannot abduct the arm at the shoulder
cannot externally rotate the arm
or supinate the forearms
= waiter tip hand

absent moro reflex on involved side

so the clinical presentation is adducted , internally roasted and pronated arm

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14
Q

what are the all the vertebrae affecting the phrenic nerve palsy ?

A

c3 ,c4 , c5

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15
Q

what leads to phrenic nerve palsy ?

A

paralysis of the diaphragm = respiratory distress

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16
Q

what is the klumpke paralysis

A

injury to the cervical nerves of c7-c8 and TH1

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17
Q

in klumpke paralysis what are the signs and symptoms ?

A

paralysed hand and arm - affects the intrinsic muscles and represents a claw hand
forarm is supinate and wrist and fingers are hyperextended and flexion and the interphalneag and metatarsophalanageal joints are flexed

if sympathetic nerves affects - ipsilateral horner syndrome 
= ptosis = drooping of the eyelid 
meiosis = constricted pupils
= missing gasping relief 
= decreased sweating
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18
Q

what is the treatment from klumpke paralysis

A

fixation by the flexion of the affected arm for 10 days

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19
Q

facial nerve is a result of which nerve ?

A

7th cranial nerve

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20
Q

what causes facial nerve palsy ?

A

use forceps

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21
Q

what are the signs and symptoms of facial nerve palsy ?

A

asymmetric crying face
affected side is flaccid
eye does not close
nasolabial fold

22
Q

what is complication of facial nerve palsy ?

A

protecting the conjuctivitis

23
Q

if there is any fracture to the cranium of the baby do we treat it ?

A

require no treatment

24
Q

are fractures of the cranium a common thing ?

A

it is rare and usually LINEAR

25
a very a common fracture of the baby ?
clavicle unilateral humerus femur
26
fracture of the clavicle is common in what type of babies ?
macrocosmic babies - shoulder dystocia
27
what is the signs and symptoms of clavicular fractures ?
asymmetric moro reflex , decreased movement of the affected side
28
what are the different types of intracranial haemorrhage ?
``` subdural subarachnoid epidural parenchymal intraventricular ```
29
what cause subdural haemorrhage ?
forceps cephalopelvic disproportion large gestational age skull fractures hypoxemic ischemic encephalopathy breech malpresentation c section
30
why is subdural haemorrhage very dangerous ?
water is drawn into the haemorrhage because of the high oncotic pressure of the protein resulting in expanding symptomatic lesion
31
what are the signs and symptoms of subdural haemorrhage ?
macrocephaly ``` pushing against the brain vomitting seizures resp depression apnea irritability hypotonia decreased level consciousness ``` massive - shock , seizures , coma
32
what is the diagnosis of subdural haemorrhage
lab : anemia jaundice ultrasound and ct
33
do we treat subdural haemorrhage ?
surgical evacuation
34
complication of subdural haemorrhage
hypoxermic ischemic encephalopathy brain hernia all types of bleeding in the brain can increase the risk for permeant brain damage cerebral palsy developmental delay s
35
hat causes subarachnoid haemorrhage ?
``` birth trauma - mechanical force hypodermic ischemic encephalopathy fetal malpresentation cephalopelvic diporption atriovenous malformations ```
36
what are the signs and symptoms of subarachnoid heorrhages ?
seizures apnea bradycardia hydrocephalus
37
what is the prognosis of subarachnoid heorrhages ?
minor | and babies usually survive without lasting problems
38
what causes periventricular and intraventricular haemorrhages
``` preterm babies very low birth weight = esp below 1500g asphyxia hypoxemia = RDS hypercapnia heart failure ```
39
when does periventricular and intraventricular hemorrhage most commonly occur ?
1-3 days of life
40
what is the clinical manifestations of periventricular and intraventricular haemorrhages
``` seizures apnea bradycardia lethargy coma hypotension metabolic acidosis anemia bulging fontanel macrocephaly ```
41
what is the treatment for PVH or IVH ?
spinal tap | if necessary ventricular peritoneal shunt
42
what is the pathophysiology of HIE ?
hypoxia to the brain leads to reduced glucose for metabolism and lactate builds up giving anaerobic metabolism and tissue acidosis
43
what are the characteristics of hypoxermic ischemic encephalopathy in a TERM infant ?
cerebral edema | cortical necrosis and involvement of basal ganglia
44
what is hypodermic and ischemic encephalopathy characterised in preterm infants ?
periventricular leukomalacia
45
in both preterm and full term babies what is the rest of hypodermic ischemic encephalopathy ?
cortical atrophy mental retardation spastic quadriplegia diplegia
46
what causes hypodermic ischemic encephalopathy
alcohol smoking birth asphyxia
47
what are the signs and symptoms and using this can give the particular staging in hypodermic ishemic encephalopathy their stages ?
SARNAT staging level of consciousness stage 1 - hyper alert 2- lethargic 3- stuporous muscle tone stage1 - normal 2 - hypotonic flaccid tendon reflex stage 1 - hyperactive hyperactive absent moro reflex stage 1 - strong 2 - weak 3- absent pupils stage 1 - mydriasis - miosis poor light reflex seizures stage 1 - non common - peak at 48 hours decerebration duration stage 1 - 24 and longer stage 2 - 24hr-14 days stage 3 - days to weeks difficulty initiating and maintaining respiration
48
what is the diagnosis
electroencephalograph in secures stage 1 - normal stage 2 0 low voltage changing seizure activity burst suppression to isoelectric blood gas analysis cord blood gas analysis for high risk pregnancy CT , MRI
49
what is the treatment for HIE?
hypothermia therapy - cooling the baby to 33 degrees for three days after birth decrease the cerebral metabolic date for glucose and oxygen reduce the high energy loss of phosphates during hypoxia and ischemia
50
what is a big complication in HIE?
cerebral palsy