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Published in: Journal of Neurology 6/2019

01-06-2019 | Amyotrophic Lateral Sclerosis | Original Communication

Prognostic significance of body weight variation after diagnosis in ALS: a single-centre prospective cohort study

Authors: Toshio Shimizu, Yuki Nakayama, Chiharu Matsuda, Michiko Haraguchi, Kota Bokuda, Kazuko Ishikawa-Takata, Akihiro Kawata, Eiji Isozaki

Published in: Journal of Neurology | Issue 6/2019

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Abstract

Background

Body weight reduction after disease onset is an independent predictor of survival in amyotrophic lateral sclerosis (ALS), but significance of weight variation after diagnosis remains to be established.

Objective

To investigate weight variation after diagnosis and its prognostic significance in patients with ALS as a prospective cohort study.

Methods

Seventy-nine patients with ALS were enrolled in this study. At the time of diagnosis and about 1 year later, we evaluated the following parameters: age, sex, onset age, onset region, body mass index (BMI) and premorbid BMI, forced vital capacity and the revised ALS functional rating scale. Annual BMI decline rates (∆BMI) from onset to diagnosis and from diagnosis to about 1 year later were calculated. Patients were followed to the endpoints (death or tracheostomy), and the relationships between ∆BMIs and survival were investigated.

Results

Patients with post-diagnostic ∆BMI ≥ 2.0 kg/m2/year showed shorter survival length than those with < 2.0 kg/m2/year (log-rank test, p < 0.0001), and multivariate analysis using the Cox model revealed post-diagnostic ∆BMI as an independent prognostic factor. No correlation was identified between pre- and post-diagnostic ∆BMIs. Female patients with post-diagnostic ∆BMI < pre-diagnostic ∆BMI showed longer survival than those with the opposite ∆BMI trend (log-rank test, p = 0.0147). Female patients with post-diagnostic weight increase showed longer survival than those with weight decrease (log-rank test, p = 0.0228).

Conclusion

Body weight changes after diagnosis strongly predicts survival in ALS, and weight gain after diagnosis may improve survival prognosis, particularly in female ALS patients.
Literature
8.
go back to reference Desport JC, Preux PM, Truong TC et al (1999) Nutritional status is a prognostic factor for survival in ALS patients. Neurology 53:1059–1063CrossRefPubMed Desport JC, Preux PM, Truong TC et al (1999) Nutritional status is a prognostic factor for survival in ALS patients. Neurology 53:1059–1063CrossRefPubMed
21.
go back to reference Brooks BR, Miller RG, Swash M et al (2000) El Escorial revisited: revised criteria for the diagnosis of amyotrophic lateral sclerosis. Amyotroph Lateral Scler Other Motor Neuron Disord 1:293–299CrossRefPubMed Brooks BR, Miller RG, Swash M et al (2000) El Escorial revisited: revised criteria for the diagnosis of amyotrophic lateral sclerosis. Amyotroph Lateral Scler Other Motor Neuron Disord 1:293–299CrossRefPubMed
24.
go back to reference Cedarbaum JM, Stambler N, Malta E et al (1999) The ALSFRS-R: a revised ALS functional rating scale that incorporates assessments of respiratory function. BDNF ALS Study Group (Phase III). J Neurol Sci 169:13–21CrossRefPubMed Cedarbaum JM, Stambler N, Malta E et al (1999) The ALSFRS-R: a revised ALS functional rating scale that incorporates assessments of respiratory function. BDNF ALS Study Group (Phase III). J Neurol Sci 169:13–21CrossRefPubMed
Metadata
Title
Prognostic significance of body weight variation after diagnosis in ALS: a single-centre prospective cohort study
Authors
Toshio Shimizu
Yuki Nakayama
Chiharu Matsuda
Michiko Haraguchi
Kota Bokuda
Kazuko Ishikawa-Takata
Akihiro Kawata
Eiji Isozaki
Publication date
01-06-2019
Publisher
Springer Berlin Heidelberg
Published in
Journal of Neurology / Issue 6/2019
Print ISSN: 0340-5354
Electronic ISSN: 1432-1459
DOI
https://doi.org/10.1007/s00415-019-09276-2

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