Grading fluorescein angiograms in malarial retinopathy.

Area of Science:

• Ophthalmology
• Infectious Diseases
• Medical Imaging

Background:

• Malarial retinopathy is a key indicator in Plasmodium falciparum cerebral malaria, aiding diagnosis and outcome prediction.
• Consistent methodology for retinal image capture and grading is crucial for reliable comparisons across studies.
• Currently, no standardized grading scheme exists for fluorescein angiographic features of malarial retinopathy.

Purpose of the Study:

• To develop and validate a grading scheme for fluorescein angiographic features of malarial retinopathy.
• To establish a consistent method for assessing retinal vascular damage in pediatric cerebral malaria.
• To facilitate comparative studies and outcome analyses of malarial retinopathy.

Main Methods:

• A grading scheme was created based on expert consensus from clinicians and researchers experienced in malarial retinopathy.
• Dual grading was performed on admission fluorescein images from a large cohort of children with cerebral malaria.
• Expert adjudication was used to resolve discrepancies in grading.

Main Results:

• A standardized grading scheme with illustrative images was developed.
• Inter-grader agreement exceeded 70% for most assessed variables.
• Intravascular filling defects presented challenges in grading, with lower inter-grader agreement (>57%).

Conclusions:

• The developed grading scheme offers a consistent method for describing retinal vascular damage in pediatric cerebral malaria.
• This scheme enables reliable comparisons of angiographic features across patient groups and correlation with clinical outcomes.
• Reasonable inter-grader agreement supports the scheme's utility, with dual grading and expert adjudication recommended for accuracy.