ArticleNeurocritical care2026
Risk Stratification and Ventilator Liberation in Neuromyelitis Optica Spectrum Disorder-Related Central Respiratory Failure.
Article in Neurocritical care, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThis study aimed to identify risk factors for central respiratory failure (CRF) in neuromyelitis optica spectrum disorder (NMOSD) and investigate predictors of successful mechanical ventilator liberation in affected patients.
methodsThis retrospective cohort analysis included 280 active patients with NMOSD admitted between 2020 and 2024. CRF was defined as respiratory failure caused by direct neurological injury to the brainstem or high cervical spinal cord. Among these patients, 28 developed CRF and were matched with 57 non-CRF controls (n = 85). Multivariable Cox proportional hazards regression was used to identify independent CRF risk factors, and a nomogram was generated. Predictors of successful weaning (liberation > 48 h) were examined in the 28 patients with CRF using descriptive statistics and exploratory Fine-Gray competing risk analysis.
resultsThe incidence of CRF in NMOSD was 10.0% (28/280). Multivariable Cox analysis identified two independent predictors of CRF: elevated platelet-lymphocyte ratio (PLR) [hazard ratio (HR) = 1.003, 95% confidence interval (CI) 1.001-1.005; p = 0.003] and medullary lesion on magnetic resonance imaging (MRI) (HR = 5.23, 95% CI 2.03-13.45; p = 0.001). The nomogram showed good discrimination (C-index = 0.779) and enabled effective risk stratification. Among patients with CRF, 75.0% (21/28) achieved successful ventilator liberation. Patients who achieved successful weaning had a significantly shorter time to glucocorticoid treatment and higher baseline PLR than those who failed (both p < 0.05). In the multivariate competing risk model, higher hemoglobin subdistribution HR (sHR = 1.02) was a positive predictor, whereas higher body mass index (BMI) (sHR = 0.76), AQP4-IgG seropositivity (sHR = 0.39), and sepsis (sHR = 0.17) were independent negative predictors.
conclusionsElevated PLR and medullary lesions are independent risk factors for CRF in NMOSD, which can be predicted by the generated nomogram. Furthermore, successful ventilator liberation is achievable in most patients with CRF, and early glucocorticoid treatment alongside monitoring of prognostic factors such as BMI, AQP4-IgG status, and infection may guide clinical management.
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