Brain magnetic resonance imaging features in multiple sclerosis and neuromyelitis optica spectrum disorders patients with or without aquaporin-4 antibody in a Latin American population

Autor: Facundo Silveira, Carolina Lavigne Moreira, Liliana Patrucco, Francisco Sánchez, Agustín Pappolla, Verónica Tkachuk, Edgar Carnero Contentti, Ibis Soto de Castillo, Maria C Castillo, Antonio Carlos dos Santos, Vanessa Daccach Marques, Alejandro Caride, Camila de Aquino Cruz, Juan Ignacio Rojas, Juan Pablo Pettinicchi, Gabriel Braga Diégues Serva, Pablo A. López, Omaira Molina, Edgardo Cristiano
Rok vydání: 2019
Předmět:
Zdroj: Multiple sclerosis and related disorders. 42
ISSN: 2211-0356
Popis: INTRODUCTION There is scarce evidence comparing the behavior in magnetic resonance (MRI) between positive and negative aquaporin-4 antibody neuromyelitis optica spectrum disorders (P-NMOSD and NNMOSD, respectively). The aim of this study was to describe and compare MRI features through a quantitative and qualitative analysis between P-NMOSD and NNMOSD patients in a cohort from Latin American (LATAM) patients. METHODS We retrospectively reviewed the MRI and medical records of NMOSD patients as defined by the 2015 validated diagnostic criteria, and with at least 3 years of follow-up from disease onset (first symptom). We included patients from Argentina, Brazil and Venezuela. To be included, NMOSD patients must have had AQP4-ab status measured by a cell-based assay. Brain MRIs were obtained for each participant at disease onset and every 12 months for 3 years. Demographics, clinical and MRI variables (T2 lesion volume [T2LV], lesion distribution, cortical thickness [CT] and percentage of brain volume loss [PBVL]) were analyzed and compared between groups (P-NMOSD; NNMOSD) at disease onset and follow-up. A multiple sclerosis (MS) control group of patients was also included. RESULTS We included 24 P-NMOSD, 15 NNMOSD and 35 MS patients. No differences in age, gender and follow-up time were observed between groups. Nor were differences found in lesion distribution at disease onset or in brain volumes during follow-up between P-NMOSD and NNMOSD patients (T2LV = 0.43, CT = 0.12, PBVL p = 0.45). Significant differences were observed in lesion distribution at disease onset, as well as in brain volumes during follow-up between NMOSD and MS (T2LV = p
Databáze: OpenAIRE