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BMC Ophthalmology
Published in: BMC Ophthalmology 1/2018

Open Access 01-12-2018 | Research article

Comparison of 5-year progression of retinitis pigmentosa involving the posterior pole among siblings by means of SD-OCT: a retrospective study

Authors: Leonardo Colombo, Giovanni Montesano, Barbara Sala, Fabio Patelli, Paolo Maltese, Andi Abeshi, Matteo Bertelli, Luca Rossetti

Published in: BMC Ophthalmology | Issue 1/2018

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Abstract

Background

The aim of this study is to analyze and compare the progression of photoreceptor atrophy among siblings affected by retinitis pigmentosa by means of spectral SD-OCT.

Methods

Fifty three eyes of 27 patients belonging to 12 family clusters were analyzed. To assess the annual progression rate of photoreceptor atrophy, the ellipsoid zone (EZ) line was measured in OCT sections through the fovea. We used multivariate generalized mixed effects to model the rate of progression and its relation to the initial ellipsoid zone line width.

Results

During our 4.84 years (± 1.44) mean follow up time (range 3–7) 53 eyes were examined. The ellipsoid zone line width declined with a yearly average rate of 76.4 μm (4.16% / year) (p-value < 0.0001). Progression rates were poorly correlated within family clusters (p-value = 0.23) and showed statistical difference between affected siblings (p-value = 0.007). There was no correlation between inter-familiar progression rate and mode of inheritance (p-value = 0.98) as well as between age and ellipsoid zone line width among siblings (p-value = 0.91).

Conclusion

RP could be extremely heterogeneous even among siblings: an accurate and sensitive method to follow the progression of the disease is fundamental for future development of clinical trials and therapy strategies.
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Metadata
Title
Comparison of 5-year progression of retinitis pigmentosa involving the posterior pole among siblings by means of SD-OCT: a retrospective study
Authors
Leonardo Colombo
Giovanni Montesano
Barbara Sala
Fabio Patelli
Paolo Maltese
Andi Abeshi
Matteo Bertelli
Luca Rossetti
Publication date
01-12-2018
Publisher
BioMed Central
Published in
BMC Ophthalmology / Issue 1/2018
Electronic ISSN: 1471-2415
DOI
https://doi.org/10.1186/s12886-018-0817-z

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