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Tonsillectomy in multiple sclerosis patients: Retrospective, case-controlled, exploratory study.

Abstract：

BACKGROUND:Previous studies have shown an effect of tonsillectomy and greater risk for future autoimmune diseases. Currently there are only few outdated analyses of tonsillectomy and multiple sclerosis (MS) risk. OBJECTIVE:To investigate the prevalence of tonsillectomy in MS patients and healthy controls (HCs). METHODS:A total of 1000 subjects (779 MS patients and 221 HCs) completed a structured study questionnaire regarding MS diagnosis, age of onset, history of tonsillectomy, and age of tonsillectomy. In a subgroup of patients with available electronic medical records, Expanded Disability Status Scale (EDSS) scores at the time of recruitment and 5-years later were collected. Statistical analyses were performed with χ2 test, odds ratio (OR), Student's t-test, Mann-Whitney U test, and ordinal regression.. RESULTS:The MS population had a greater percentage of patients with history of tonsillectomy when compared to HCs [39.5% vs. 31.7%, OR 1.411 (CI 1.027-1.938), p = 0.034], driven by participants aged 50 or older [45.7% vs. 36.1%, OR 1.495 (CI 1.037-2.155) p = 0.031]. There was no difference of the age at tonsillectomy (median 8.0 vs. 6.5 years old, p = 0.26). However, the RRMS patients had their tonsillectomy procedure performed significantly later when compared to HCs (median 6.5 vs. 9.0 years old, p = 0.049). In an analysis of RRMS patients with available longitudinal data (n = 459), patients with a history of tonsillectomy were significantly older and had a longer disease duration (p < 0.001 and p = 0.025). After adjusting for the demographic differences, no history of tonsillectomy remained significant predictor of lower EDSS score categories both at the first (estimate = -0.467, Wald = 6.68, 95% CI -0.82 to -0.11, p = 0.01) and second timepoint (estimate = -0.376, Wald = 4.4, 95% CI -0.73 to -0.02 p = 0.037). CONCLUSION:When compared to HCs, a greater percentage of MS patients underwent tonsillectomy. The role of tonsils, its relationship with early infection rates and/or antibiotic use in MS should be further investigated.

journal_name

Mult Scler Relat Disord

journal_title

Multiple sclerosis and related disorders

authors

Jakimovski D,Ahmed MK,Vaughn CB,Zivadinov R,Weinstock-Guttman B

doi

10.1016/j.msard.2020.102131

subject

Has Abstract

pub_date

2020-07-01 00:00:00

pages

102131

eissn

2211-0348

issn

2211-0356

pii

S2211-0348(20)30207-8

journal_volume

pub_type

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Tonsillectomy in multiple sclerosis patients: Retrospective, case-controlled, exploratory study.