Idibell Institute Investigacion Biomedica Of Bellvitge

Barcelona, Spain

Idibell Institute Investigacion Biomedica Of Bellvitge

Barcelona, Spain
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Gonzalez Calzada N.,Hospital Universitari Of Bellvitge | Gonzalez Calzada N.,Idibell Institute Investigacion Biomedica Of Bellvitge | Prats Soro E.,Hospital Universitari Of Bellvitge | Prats Soro E.,Idibell Institute Investigacion Biomedica Of Bellvitge | And 9 more authors.
Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration | Year: 2016

Objective: Non invasive ventilation (NIV) improves quality of life and extends survival in amyotrophic lateral sclerosis (ALS) patients. However, few data exist about the factors related to survival. We intended to assess the predictive factors that influence survival in patients after NIV initiation. Methods: Patients who started NIV from 2000 to 2014 and were tolerant (compliance ≥ 4 hours) were included; demographic, disease related and respiratory variables at NIV initiation were analysed. Statistical analysis was performed using the Kaplan-Meier test and Cox proportional hazard models. Results: 213 patients were included with median survival from NIV initiation of 13.5 months. In univariate analysis, the identified risk factors for mortality were severity of bulbar involvement (HR 2), Forced Vital Capacity (FVC) % (HR 0.99) and ALSFRS-R (HR 0.97). Multivariate analysis showed that bulbar involvement (HR 1.92) and ALSFRS-R (HR 0.97) were independent predictive factors of survival in patients on NIV. Conclusions: In our study, the two prognostic factors in ALS patients following NIV were the severity of bulbar involvement and ALSFRS-R at the time on NIV initiation. A better assessment of bulbar involvement, including evaluation of the upper airway, and a careful titration on NIV are necessary to optimize treatment efficacy. © 2016 World Federation of Neurology on behalf of the Research Group on Motor Neuron Diseases.

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