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Shaken baby syndrome
J D Kivlin1, K B Simons, S Lazoritz
1Department of Ophthalmology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA. jkivlin@mcw.edu
Insights
Shaken baby syndrome (SBS) causes severe vision loss, often due to brain injury, not just retinal hemorrhages. Early visual and pupillary responses strongly predict survival and long-term outcomes in affected children.
Area of Science:
- Ophthalmology
- Pediatric Medicine
- Forensic Pathology
Background:
- Shaken baby syndrome (SBS) is a severe form of abusive head trauma in infants.
- Ophthalmologic findings are crucial for diagnosing SBS and assessing its severity.
- Understanding the long-term visual and neurological outcomes is vital for affected children.
Purpose of the Study:
- To comprehensively review the ophthalmologic manifestations of SBS.
- To correlate clinical and autopsy findings with patient outcomes.
- To evaluate the diagnostic challenges and prognostic indicators in SBS.
Main Methods:
- Retrospective case series of 123 children with abusive subdural hematomas.
- Analysis of clinical eye examination data and histopathologic findings.
- Statistical analysis of visual/pupillary responses, fundus findings, and outcomes.
Main Results:
- Ophthalmologic assessments were performed in 90% of patients; 83% had retinal hemorrhages.
- Retinal hemorrhages were bilateral in 85% and missed by non-ophthalmologists in 29%.
- Poor initial visual/pupillary response and retinal hemorrhages correlated with mortality; survivors often had vision loss due to brain injury.
Conclusions:
- SBS causes significant brain and vision damage; retinal hemorrhages are common but vision loss is primarily from brain injury.
- Initial visual and pupillary responses are strong predictors of survival and neurological outcome.
- Difficulty in detecting retinal hemorrhages by non-specialists hinders early identification and protection of abused children.
Purpose:
To examine the comprehensive ophthalmologic experience with the shaken baby syndrome at one medical center, including clinical findings, autopsy findings, and the outcome of survivors.
Design:
Retrospective, noncomparative case series.
Participants:
One hundred twenty-three children admitted from January 1987 through December 1998 for subdural hematomas of the brain secondary to abuse were included.
Methods:
Clinical features of eye examinations of the patients during their admission and after discharge and histopathologic observations for patients who died were retrieved from medical records and statistically analyzed.
Main Outcome Measures:
Visual response and pupillary response on initial examination, fundus findings, final vision, neurologic outcome of survivors, and death.
Results:
Ninety percent of the patients had ophthalmologic assessments. Retinal hemorrhages were detected in 83% of the examined children. The retinal hemorrhages were bilateral in 85% of affected children and varied in type and location. Nonophthalmologists missed the hemorrhages in 29% of affected patients. Poor visual response, poor pupillary response, and retinal hemorrhage correlated strongly with the demise of the child. One child who died had pigmented retinal scars from previous abuse, a condition not previously observed histopathologically to our knowledge. One fifth of the survivors had poor vision, largely the result of cerebral visual impairment. Severe neurologic impairment correlated highly with loss of vision.
Conclusions:
Shaken baby syndrome causes devastating injury to the brain and thus to vision. Retinal hemorrhages are extremely common, but vision loss is most often the result of brain injury. The patient's visual reaction and pupillary response on presentation showed a high correlation with survival. Good initial visual reaction was highly correlated with good final vision and neurologic outcome. According to the literature, when retinal hemorrhages are found in young children, the likelihood that abuse occurred is very high. Nonophthalmologists' difficulty in detecting retinal hemorrhages may be an important limiting factor in identifying shaken babies so they can be protected from further abuse.
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