Author Of 1 Presentation
PS15.03 - Optical coherence tomography in aquaporin-4-IgG positive neuromyelitis optica spectrum disorders: a collaborative multi-center study
- F. Oertel
- S. Specovius
- H. Zimmermann
- C. Chien
- S. Motamedi
- L. Cook
- M. Lana-Peixoto
- M. Fontenelle
- H. Kim
- J. Hyun
- J. Palace
- A. Roca-Fernandez
- F. Ashtari
- R. Kafieh
- L. Pandit
- A. D'Cunha
- O. Aktas
- M. Ringelstein
- E. May
- C. Tongco
- L. Leocani
- M. Pisa
- M. Radaelli
- E. Martinez-Lapiscina
- H. Stiebel-Kalish
- S. Siritho
- J. De Seze
- T. Senger
- J. Havla
- R. Marignier
- E. Nerrant
- A. Cobo Calvo
- D. Bichuetti
- I. Tavares
- N. Asgari
- K. Soelberg
- A. Altintas
- U. Tanriverdi
- A. Jacob
- S. Huda
- Z. Rimler
- Y. Mao-Draayer
- I. Soto De Castillo
- A. Green
- M. Yeaman
- T. Smith
- A. Brandt
- F. Paul
Abstract
Background
Optic neuritis (ON) is a frequent manifestation in aquaporin-4 antibody (AQP4-IgG) seropositive neuromyelitis optica spectrum disorders (NMOSD). Due to limited samples, existing optical coherence tomography (OCT) studies are inconsistent regarding retinal changes in eyes with a history of ON (NMO-ON) and without a history of ON (NMO-NON), and their functional relevance.
Objectives
The CROCTINO (Collaborative Retrospective Study on retinal OCT in Neuromyelitis Optica) project aims to reveal correlates of retinal pathology and to generate hypotheses for prospective OCT studies in NMOSD. The objective of this study was to analyze retinal changes of AQP4-IgG seropositive NMO-ON and NMO-NON eyes in an international cross-sectional OCT dataset.
Methods
Of 656 subjects, we enrolled 283 AQP4-IgG seropositive NMOSD patients and 72 healthy controls (HC) from 22 international expert centers. OCT data was acquired with Spectralis SD-OCT, Cirrus HD-OCT and Topcon 3D OCT-1. Mean thickness for the combined ganglion cell and inner plexiform layer (GCIP) and inner nuclear layer (INL) were calculated from macular volume scans. Clinical, functional and laboratory testing were performed at discretion of each center.
Results
We compared NMO-ON eyes (N = 260), NMO-NON eyes (N = 241) and HC eyes (N = 136). GCIP was reduced in NMO-ON (57.4 ± 12.2 µm) compared with NMO-NON (75.9 ± 7.7 µm; p < 0.001) and HC (81.4 ± 5.7 µm; p < 0.001). NMO-NON had thinner GCIP (p < 0.001) compared with HC. INL was thicker in NMO-ON (40.3 ± 3.9 µm) compared with NMO-NON (38.6 ± 3.9µm; p < 0.001), but not HC (39.4 ± 2.6 µm). Microcystic macular edema were visible in 6.6 % of NMOSD eyes.
Conclusions
AQP4-IgG seropositive NMOSD is characterized by a functionally relevant loss of retinal neuroaxonal content and a - probably inflammatory - increase of INL after ON. Our study further supports the existence of attack-independent damage in the visual system of patients with AQP4-IgG seropositive NMOSD.
Author Of 1 Presentation
P0707 - Costs and health-related quality of life in patients with neuromyelitis optica spectrum disorder and MOG-antibody associated disease (CHANCENMO-Study) (ID 1015)
- M. Hümmert
- L. Schöppe
- J. Bellmann-Strobl
- N. Siebert
- F. Paul
- A. Duchow
- H. Pellkofer
- T. Kuempfel
- J. Havla
- S. Jarius
- B. Wildemann
- F. Then Bergh
- M. Pawlitzki
- L. Klotz
- I. Kleiter
- M. Stangel
- S. Gingele
- M. Weber
- J. Faiss
- R. Pul
- A. Walter
- U. Zettl
- M. Senel
- J. Stellmann
- V. Häußler
- K. Hellwig
- I. Ayzenberg
- O. Aktas
- M. Ringelstein
- O. Schreiber-Katz
- C. Trebst
Abstract
Background
Neuromyelitis optica spectrum disorder (NMOSD) and myelin oligodendrocyte glycoprotein-antibody associated disease (MOG-AD) are orphan diseases with high impact on quality of life and to date unknown socio-economic burden.
Objectives
The aim of this study was to evaluate costs and health-related quality of life of NMOSD and MOG-AD from the societal perspective.
Methods
In a multicenter cross-sectional study throughout Germany between 04/2017 and 04/2019, the primary data on retrospective consumption of medical and non-medical resources and work ability related to NMOSD and MOG-AD were assessed via standardized and pre-tested paper-based patient questionnaires. Health-related quality of life was captured by the EuroQoL Group EQ-5D-5L questionnaire. Clinical data were retrieved from the Neuromyelitis Optica Study Group (NEMOS) database. Patient recruitment took place at 17 German NEMOS centers. Costs were analyzed in EUR for 2018.
Results
During the recruitment period, 218 of 275 adult patients were screened for eligibility. 212 patients (80.2% women; mean age 49 ± SD 15 years; mean disease duration 9 ± SD 8.5 years; Expanded Disability Status Scale (EDSS) 3.7 ± SD 2.1) were analyzed. The mean total annual per capita cost of illness accounted for EUR 59 576 and the mean index value of the EQ-5D-5L was 0.693. Given an estimated prevalence of NMOSD in Germany of 1.3/100 000, the annual burden from the societal perspective adds to EUR 64.3 Mio for Germany. The most important cost drivers were informal care costs (27.6% of total costs), indirect costs (23.3%; particularly loss of salary) and drugs, especially immunotherapeutics (16.4%). Costs showed a significant positive correlation with disease severity (p<0.0001); in the EDSS 6.5-8.5 subgroup the annual costs were EUR 129 436. Moreover, the health-related quality of life revealed a negative correlation with disease severity (p<0.0001); in the EDSS 6.5-8.5 subgroup the mean index value was 0.195.
Conclusions
These German data from the era without approved standard medications show enormous effects of the disease on costs and quality of life and might be helpful for estimating the impact and cost-effectiveness of new therapeutic approaches.