Pediatric Papilledema at a Tertiary Care Ophthalmological Center

Influence of sex and disease etiology on the development of papilledema and optic nerve sheath extension in the setting of intracranial pressure elevation in children

Introduction

Dilatation of the optic nerve sheath diameter and swelling of the optic disc are known phenomena associated with intracranial pressure elevation.

Research question

Do sex and disease etiology have an impact on the development of optic disc elevation and optic nerve sheath extension in children in the setting of ICP elevation? Fundoscopic papilledema and point-of-care-ultrasound techniques-optic nerve sheath diameter (US-ONSD) and optic disc elevation (US-ODE) - were compared in this regard.

Material and methods

72 children were included in this prospective study; 50 with proven pathology (e.g. pseudotumor cerebri, tumor), 22 with pathology excluded. Bilateral US-ONSD and US-ODE were quantified by US using a 12-MHz-linear-array-transducer. This was compared with fundoscopic optic disc findings and in 28 patients with invasive ICP values, stratified for sex and etiology.

Results

In patients with proven disease, significant more girls (69%) had fundoscopic papilledema compared with boys (37%, p < 0.05). Girls had also larger US-ODE values (0.86 ± 0.36 mm vs. 0.65 ± 0.40 mm in boys). 80% of tumor patients had initial papilledema (100% girls, 79% boys), compared with 50% in pseudotumor cerebri (PTC) (83% girls, 30% boys). US-ONSD had no sex- and no etiology-specificity.

Discussion and conclusion

Presence of papilledema appears to be influenced by sex and etiology, whereas US-ONSD is not. Girls seem more likely to develop papilledema under similar conditions. Male sex and PTC appear as risk factors for being undetected by fundoscopic findings. US-ONSD and US-ODE seem useful tools to identify pathologies with potentially increased ICP requiring treatment in children regardless of sex and etiology.

Trends and Clinical Characteristics of Pediatric Patients Presenting to an Ophthalmology Emergency Department with an Initial Diagnosis of Optic Nerve Head Elevation

Objective

Optic nerve head elevation may be the only clinical sign of a vision- and/or life-threatening condition, particularly in children who are asymptomatic or fail to report symptoms. The purpose of this study is to identify epidemiologic trends, clinical characteristics, and diagnostic outcomes of pediatric patients presenting to an ophthalmology emergency department (ED) with suspected optic nerve head elevation.

Methods

This retrospective study identified pediatric patients (≤18 years) presenting to an ophthalmology ED over a five- year period with suspected optic nerve head elevation to describe demographic trends, clinical characteristics, and diagnostic outcomes.

Results

Of the 213 patients, the majority were female (73.2%) and tended to be older than males (14.3 vs 11.2 years, p<0.001). The most common diagnoses were papilledema (52.6%), pseudopapilledema (31.5%), and optic nerve drusen (8.0%). When symptoms were present, most (73.7%) patients presented with headache (67.5%) or visual disturbance (54.8%). Of 144 neuroimaging studies obtained, 80 (55.6%) had positive findings and these were significantly associated with symptoms at presentation (p=0.017) and age (p=0.034), but not sex (p=0.791). Asymptomatic females and children >12 years old were more likely to have an abnormal MRI than males and children ≤ 12 (OR=1.56 and 1.22, respectively).

Conclusion

Patient demographics such as age and sex in conjunction with concurrent symptoms are important factors in determining the urgency of neuroimaging in children with suspected optic nerve head elevation.