Dysarthria and dysphagia in Amyotrophic Lateral Sclerosis with spinal onset: a study of quality of life related to swallowing.

Abstract

Dysarthria and dysphagia are the most common clinical problems encountered in Amyotrophic Lateral Sclerosis and may reduce the quality of life. Evaluate the association of dysarthria and dysphagia and to evaluate the impact of dysphagia on swallowing quality of life in patients with ALS with spinal onset. Seventeen patients underwent to speech and swallowing evaluation and filled out self-report assessment of the Swallowing Quality of Life (SWAL-QOL). The dysarthria severity was graded using the Speech Subscale of ALS Severity Scale. The dysphagia severity was graded using a scale proposed by Dziweas et al., and the Functional Oral Intake Scale. Over 70% of the ALS patients with spinal onset had dysarthria and dysphagia. The correlation of dysarthria and dysphagia scales was statistically significant (p < 0.001). The correlation between dysarthria and dysphagia severity and SWAL-QOL outcomes was significant for the same domains: "symptom frequency", "communication" and "fear of eating". The SWAL-QOL domains presented a mild to moderate impact on quality of life. Disease duration did not impact on SWAL-QOL. Dysarthria and dysphagia were common symptoms in patients with spinal onset of ALS and the swallowing quality of life decrease was directly related to with severity of dysarthria and dysphagia.