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Acta Neurol Scand. 2013 Mar;127(3):154-60. doi: 10.1111/j.1600-0404.2012.01690.x. Epub 2012 Jun 12.

Risk factors for a non-favorable outcome after treated European neuroborreliosis.

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1
Department of Neurology, Sørlandet Hospital, Arendal, Norway. randi.eikeland@sshf.no

Abstract

AIM:

To identify possible risk factors for reduced health-related quality of life (HRQoL) and fatigue after treated Lyme neuroborreliosis (LNB).

METHODS:

We included 50 patients with LNB and analyzed associations between their demographic, clinical, and laboratory characteristics at baseline and outcome at 30 months assessed by the self-report questionnaires Short Form-36 (SF-36) and Fatigue Severity Scale (FSS).

RESULTS:

Lower scores in the SF-36 domain Physical Component Summary were associated with pretreatment symptom duration >6 weeks (B = -11.0, P = 0.001) and non-complete recovery at 4 months (B = -5.5, P = 0.037) (R(2) = 0.35). Lower scores in the SF-36 domain Mental Component Summary were associated with non-complete recovery at 4 months (B = -8.9, P = 0.01 (R(2) = 0.14). Higher FSS scores were associated with pretreatment symptom duration >6 weeks (B = 1.4, P = 0.006), high scores on the composite clinical score pretreatment (B = 0.1, P = 0.003), and non-complete recovery at 4 months (B = 1.6, P = 0.005) (R(2) = 0.46). No laboratory test results were associated with these predefined outcomes.

CONCLUSIONS:

Delayed treatment start, more symptoms and findings before treatment, and non-complete recovery at 4 months after treatment are possible predictors of a poorer HRQoL and more fatigue 30 months after treated LNB. We did not find age, gender, educational level, involvement of the central nervous system, coexisting diseases, or cerebrospinal fluid findings to be associated with reduced HRQoL or fatigue. Our findings should be replicated in future studies before any conclusions can be drawn.

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