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Prevalence of retinal hemorrhages in critically ill children
Shruti Agrawal1, Mark J Peters, Gillian G W Adams
1Paediatric and Neonatal Intensive Care Units, Great Ormond Street Hospital for Children, London, United Kingdom. shragrawal@gmail.com
Insights
Retinal hemorrhages (RHs) occurred in 15.1% of critically ill children, mostly mild. Severe multilayered RHs, often linked to abusive head trauma (AHT), were rare and associated with severe medical conditions, not AHT.
Area of Science:
- Ophthalmology
- Pediatric Critical Care
- Medical Research
Background:
- Retinal hemorrhages (RHs) are often associated with abusive head trauma (AHT).
- Previous studies on RHs have potential selection bias due to their focus on AHT.
- There is a need to understand RH prevalence in critically ill children beyond AHT.
Purpose of the Study:
- To determine the prevalence, distribution, and extent of retinal hemorrhages (RHs) in critically ill children.
- To differentiate RHs in critically ill children from those typically seen in abusive head trauma (AHT).
Main Methods:
- A prospective observational study was conducted from February 2008 to December 2009.
- Critically ill children (≥ 6 weeks old) underwent dilated retinal examinations or RetCam imaging.
- Exclusions included suspected/proven AHT, penetrating eye trauma, and elective admissions.
Main Results:
- The prevalence of RHs was 15.1% (24/159), with most cases being mild.
- Severe multilayered RHs were rare (3.7%), observed in 6 patients with conditions like myeloid leukemia, sepsis, accidental head injury, or coagulopathy.
- Sepsis and coagulopathy were significantly associated with any RH, while only admission diagnosis independently predicted severe multilayered RH.
Conclusions:
- Retinal hemorrhages (RHs) are present in 15.1% of critically ill children, predominantly mild.
- Severe multilayered RHs, similar to those in AHT, are uncommon in this population.
- These severe RHs were linked to severe underlying medical conditions, not AHT.
Background:
Retinal hemorrhages (RHs) with encephalopathy and subdural bleeding are considered suggestive of abusive head trauma (AHT). Existing studies describing RH focus on AHT and have potential selection bias. We undertook a prospective observational study to define the prevalence, distribution, and extent of RH in critically ill children.
Methods:
From February 2008 to December 2009, emergency intensive care admissions ≥ 6 weeks of age underwent dilated retinal examination by either a pediatric ophthalmologist or RetCam (retinal photograph) imaging after written informed consent. Patients with suspected or proven AHT, penetrating eye trauma, and elective admissions were excluded.
Results:
The prevalence of RH was 15.1% (24/159; 95% confidence interval [CI]: 9.5%-21%); 16/24 (66%) mild, and 2/24 (8%) moderate. Severe multilayered RH were seen in only 6 patients (3.7%), 3 with myeloid leukemia and sepsis, 2 with severe accidental head injury, and 1 with severe coagulopathy secondary to late onset hemorrhagic disease of newborn. There was no detectable impact of age, gender, seizures, coagulopathy or cardiopulmonary resuscitation on prevalence of severe multilayered RH; however, sepsis (odds ratio: 3.2; 95% CI: 1.3-8.0, P = .018) and coagulopathy (odds ratio: 2.8; 95% CI: 1.2-7.0, P = .025) were significantly associated with any RH. Only admission diagnosis was independently associated with severe multilayered RH on logistic regression.
Conclusions:
RHs were seen in critically ill children with a prevalence of 15.1% (24/159); however, most were mild. Severe multilayered RH resembling those described in AHT were rare (6/24) and were only seen in patients with fatal accidental trauma, severe coagulopathy, sepsis with myeloid leukemia, or a combination of these factors.
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