Week 6 Flashcards
(64 cards)
Which factor is considered more important than gestational category alone when assessing the impact of perinatal brain injury?
A) Type of delivery
B) Developmental age at time of lesion
C) Birth weight at delivery
Correct answer: B
Explanation: The maturation of brain structures at the time of the lesion is more predictive of outcomes than whether the birth is simply classified as preterm or full-term.
Which of the following classifies a newborn as extremely preterm (EPT)?
A) Birth weight under 1500 grams
B) Gestational age under 32 weeks
C) Gestational age before 28 weeks
Correct answer: C
Explanation: Extremely preterm (EPT) is defined as birth before 28 weeks gestational age. viability begins around 22 weeks
Which of the following is an evidence-based public health strategy to reduce preterm birth risk?
A) Encouraging early return to physical activity after conception
B) Antenatal screening for maternal psychological health
C) Increasing gestational weight gain targets across all pregnancies
Correct answer: B
Explanation: Screening and addressing maternal mental health (e.g., depression, abuse) during pregnancy helps reduce risk for preterm birth, particularly when paired with responsive care systems.
Which perinatal brain injury is characterised by necrosis and softening of white matter around the lateral ventricles, typically resulting in demyelination and gliosis?
A) Perinatal arterial ischemic stroke (PAIS)
B) Periventricular leukomalacia (PVL)
C) Intraventricular haemorrhage (IVH)
Correct answer: B
Explanation: PVL = softening of white matter, due to necrosis, demyelination, and gliosis near the ventricles. Often caused by hypoxia/ischaemia, especially in preterm infants.
Which of the following is the most common type of perinatal brain injury in preterm infants?
A) Perinatal arterial ischemic stroke
B) Basal ganglia-thalamus HIE
C) Periventricular leukomalacia (PVL)
Correct answer: C
Explanation: PVL is the most common brain injury in preterm infants, due to their vulnerability to hypoxic-ischemic white matter damage.
A preterm infant suffers a germinal matrix that spreads into the lateral ventricles. What condition is this describing?
A) Periventricular leukomalacia (PVL)
B) Intraventricular haemorrhage (IVH)
C) Hypoxic-ischemic encephalopathy (HIE)
Correct answer: B
Explanation: IVH involves bleeding from the germinal matrix into the ventricular system, increasing intracranial pressure. In severe cases, it can lead to PHI.
What is a possible consequence if intraventricular haemorrhage extends into surrounding white matter?
A) Watershed pattern injury
B) Periventricular haemorrhagic infarction (PHI)
C) Parasagittal necrosis
Correct answer: B
Explanation: PHI is a more severe progression of IVH, where bleeding extends into cerebral cortex and white matter, causing infarction and necrosis.
Which HIE pattern is associated with poor motor function, unconsciousness, and near-total asphyxia?
A) Watershed pattern
B) Germinal matrix pattern
C) Basal ganglia-thalamus pattern
Correct answer: C
Explanation: The basal ganglia-thalamus pattern of HIE is more severe, often involving motor deficits, coma, and poor prognosis, linked to total asphyxia.
Which perinatal brain injury is associated with blockage of blood flow in the middle cerebral artery, affecting both cortical and subcortical regions?
A) Periventricular leukomalacia
B) Perinatal arterial ischemic stroke (PAIS)
C) Intraventricular haemorrhage
Correct answer: B
Explanation: PAIS most often affects the middle cerebral artery, damaging cortex, basal ganglia, internal capsule, and cerebellum.
Which two injuries are more commonly associated with full-term infants than with preterm infants?
A) PVL and IVH
B) HIE and PAIS
C) GMH and PHI
Correct answer: B
Explanation: HIE and perinatal stroke (PAIS) are more typical in full-term births, whereas PVL and IVH are more common in preterm infants.
Which of the following injuries is least likely to affect motor functions in isolation?
A) Basal ganglia-thalamus HIE
B) PAIS involving internal capsule
C) Watershed pattern of HIE
Correct answer: C
Explanation: The watershed pattern primarily affects white matter but may spare motor areas, especially if the cortical motor strips are intact.
Watershed: bloedstroom vanaf zijkant hersenen naar midden en vanaf midden naar zijkant. Als er een stroke is kan de watershed gebroken worden
Which HIE pattern typically results from near-total asphyxia and is associated with depressed consciousness and poor motor outcomes?
A) Watershed pattern
B) Basal ganglia-thalamus pattern
C) Germinal matrix haemorrhage
Correct answer: B
Explanation: The basal ganglia-thalamus pattern is a deep grey matter injury, linked to severe hypoxia, coma, and motor dysfunction. It reflects prolonged blood/oxygen deprivation.
What distinguishes the watershed pattern of HIE from the basal ganglia-thalamus pattern?
A) Watershed pattern affects deep grey matter; basal ganglia-thalamus pattern affects cortical white matter.
B) Watershed pattern involves white matter between arteries and is typically less severe; basal ganglia-thalamus involves deep grey matter and is more severe.
C) Watershed pattern is seen only in full-term infants; basal ganglia-thalamus is seen only in preterm infants.
Correct answer: B
Explanation: Watershed pattern = white matter, less severe.
Basal ganglia-thalamus = deep structures, more severe and disabling.
Which injury results from bleeding into the ventricles from the germinal matrix and can increase intracranial pressure in preterm infants?
A) Hypoxic-ischemic encephalopathy
B) Intraventricular haemorrhage (IVH)
C) Perinatal arterial ischemic stroke (PAIS)
Correct answer: B
Explanation: IVH arises from germinal matrix fragility, common in preterm infants, and may lead to ventricular dilation and pressure buildup.
Which perinatal injury results from a blockage in the middle cerebral artery and often leads to unilateral damage to cortical and subcortical structures?
A) Intra-venticular haemorrhage (IVH)
B) Periventricular leukomalacia (PVL)
C) Perinatal arterial ischemic stroke (PAIS)
Correct answer: C
Explanation: PAIS typically involves the middle cerebral artery, affecting cortex, basal ganglia, and internal capsule, often unilateral.
Which condition is defined by necrosis and demyelination of white matter near the lateral ventricles, often with cyst development and gliosis?
A) Periventricular leukomalacia
B) Hypoxic-ischemic encephalopathy
C) Intraventricular haemorrhage
Correct answer: A
Explanation: PVL is a classic preterm injury, with white matter necrosis, gliosis, and possible cyst formation, usually due to hypoxia/ischemia.
White matter = PVL
Purely V(w)hite loss
Which injury can result in periventricular haemorrhagic infarction (PHI) if bleeding extends into the white matter?
A) PVL
B) IVH
C) HIE
Correct answer: B
Explanation: IVH that worsens can cause PHI — bleeding that invades surrounding white matter, leading to infarction and necrosis.
IVH = Blood leakes into ventricles and IN SEVERE CASES white matter –> PHI)
Which injury is most likely to result in white matter damage without cortical involvement and is often associated with motor deficits like cerebral palsy?
A) Perinatal stroke
B) PVL
C) Basal ganglia-thalamus HIE
Correct answer: B
Explanation: PVL involves white matter only, especially around ventricles, and often leads to motor impairment without direct cortical damage.
A full-term infant presents with depressed consciousness, seizures, and an MRI showing watershed-pattern injury. Which perinatal brain injury is most likely?
A) Germinal matrix haemorrhage
B) Periventricular leukomalacia
C) Hypoxic-ischemic encephalopathy
Correct answer: C
Explanation: Watershed injury on MRI + seizures + term birth = classic for HIE, not hemorrhagic injury.
Which of the following clinical tools is used immediately after birth to assess a newborn’s physiological status and potential distress?
A) COAT scale
B) Glasgow Coma Scale
C) APGAR score
Correct answer: C
Explanation: APGAR (Appearance, Pulse, Grimace, Activity, Respiration) is used at 1 and 5 minutes post-birth to quickly evaluate the infant.
Which clinical features are more characteristic of a hemorrhagic perinatal brain injury than HIE?
A) Seizures, depressed consciousness, bilateral white matter lesions
B) Germinal matrix rupture, blood in ventricles, increased intracranial pressure
C) Lack of motor reflexes, abnormal EEG, and parasagittal cortical damage
Correct answer: B
Explanation: Intracranial hemorrhages (PVL& IVH) involve bleeding, often from the germinal matrix, and cause ventricular dilation and pressure
What long-term outcome is common to both HIE and intracranial hemorrhages in neonates?
A) Complete sensory recovery
B) No risk for neurodevelopmental disorders
C) Risk of epilepsy, cognitive impairment, and motor deficits
Correct answer: C
Explanation: Both injury types can lead to motor, cognitive, sensory, and neurological issues, including epilepsy or ADHD.
What sensory consequence can result from perinatal brain injury due to damage in early sensory pathways?
A) Enhanced visual tracking and auditory filtering
B) Complete recovery of all perceptual functions by age 2
C) Impaired sensation and perception, such as blindness or deafness
Correct answer: C
Explanation: Damage from perinatal brain injury can disrupt the development of sensory systems, leading to permanent deficits like blindness or deafness, especially if critical sensory input is lost during sensitive periods.
Which of the following statements about cerebral palsy is TRUE?
A) It is a progressive neurological disorder that worsens over time.
B) It exclusively results from birth-related complications after delivery.
C) It is a non-progressive disorder affecting movement, posture, and often sensory or cognitive functions.
Correct answer: C
Explanation: CP is non-progressive and affects motor control, posture, and often cognition, sensation, and behaviour. It can occur prenatally, perinatally, or postnatally.