Case 25 Flashcards
What are key history findings with shaken baby syndrome?
Apnea, neurological depression, difficult home situation
What are key physical exam findings with shaken baby syndrome?
Hypothermic, tachycardic, bradypneic, hypertensive, abnormal neurological exam (poor suck, tense full fontanelle, intermittent crying, decreased tone, inability to fix and follow visually)
What is the differential diagnosis for a patient with shaken baby syndrome?
Meningitis, encephalitis, GERD, closed-head injury (shaken baby), cardiac arrhythmia, respiratory infection
What are the key findings from testing for shaken baby syndrome?
Subdural hematoma on CT and MRI.
What is the epidemiology of shaken baby syndrome?
- 10-12 percent of all deaths among children who are victims of child abuse are due to shaken baby syndrome
- Mortality rate is 25 percent and 20-40 percent have poor outcomes due to neurological injury
What is the pathophysiology of shaken baby syndrome?
- Injuries, including close head injury (CHI) and retinal hemorrhages, are due to violent shaking or throwing (with resulting blunt trauma to the head). Bridging vessels tear when infant is shaken - or shaken and thrown - achieving an extreme rotational acceleration force to the brain and diffuse axonal injury to neurons
- Victims of shaken baby syndrome often have no other signs of physical abuse
Presentation/Signs and Symptoms of shaken baby syndrome may include:
- Constant crying
- Stiffness
- Excessive sleeping
- Difficulty to arouse
- Seizures
- Dilated pupils
- Decreased appetite
- Retinal hemorrhages (retinal hemorrhages outside the newborn period are pathognomonic for shaken baby syndrome and are found in 65-90 percent of victims)
Outcomes of shaken baby syndrome:
Increased risk for intellectual disability, developmental delays, motor delay or extreme motor deficit, difficulty with vision (including blindness) and seizures
What is apnea?
Cessation of inspiratory gas flow for 20 sec, or for a shorter period of time if accompanied by bradycardia (heart rate less than 100 bpm), cyanosis or pallor.
What is an apparent life-threatening event (ALTE)?
Not a diagnosis, but a description of an event. Caregiver usually describes apnea, color change, change in tone, and possibly choking or gagging. The observer may think the infant has died. Recovery occurs only after stimulation or resuscitation. Incidence is 0.05-1 percent in population-based studies.
What are potential causes of an ALTE?
- Central nervous system
- Cardiac
- Pulmonary
- Gastrointestinal
- Systemic
What are CNS causes of ALTE?
- Seizures (due to bleeding, infection, structural abnormalities, metabolic disorders, electrolyte imbalances, genetic syndromes, epilepsy)
- Breath-holding spells (pallid or cyanotic)
- Increased intracranial pressure (due to bleed, trauma, tumor, infection)
What are Cardiac causes of ALTE?
- Arrhythmia (bradycardia, long QT syndrome)
- Congenital heart disease (ductal dependent lesions, unrepaired Tetralogy of Fallot)
What are respiratory causes of ALTE?
Respiratory infections (including RSV, pertussis)
What are gastrointestinal causes of ALTE?
- GERD (may cause choking and laryngospasm)
- Swallowing abnormalities/tracheoesophageal fistula (coughing, difficulty with feeds)