OBJECTIVE: To review the literature in order to identify the pertinent findings of post-swallowing changes in vocal parameters of individuals with dysphasia. METHODS: By using a combination of descriptors, dysphasia, vocal quality, voice, acoustic analysis, and aspiration, we carried out a search in the databases EMBASE, MEDLINE (Pub Med), LILACS, and Google Scholar to find articles with objectives of comparing vocal assessment data pre -and post-feeding of individuals with dysphasia. RESULTS AND CONCLUSION: We found only 6 articles that fulfilled the inclusion criteria. The studies showed that the association between changes in vocal markers by perceptual analysis and the presence of food residue after swallowing showed varying specificity and sensitivity for detection of dysphasia, suggesting poor specificity of the presence of residues and vocal changes as indicators of dysphasia. This was mainly due to the variability of perceptions among evaluators. Acoustic analysis was more reliable, indicating post-swallowing vocal changes in individuals with dysphasia diagnosed on video fluoroscopy. The studies also indicated that voice evaluation should be considered a good indicator of dysphagia when associated with other clinical parameters. Despite these findings, the studies had very restricted samples with no control groups, and performance was assessed with only 1 food consistency.