IADR Abstract Archives
Masticatory Performance of Stroke Patients: a Systematic Review With Meta-Analysis
Objectives: The present systematic review and meta-analysis aimed to summarize the current information regarding masticatory performance of stroke patients.
Methods: Four electronic databases (Medline, Embase, CINAHL and Web of Science) were searched for relevant observational studies and clinical trials (up to Jun 2021) on masticatory performance of stroke patients. Two reviewers independently performed the study selection and quality assessments (using JBI Critical Appraisal Checklist). Meta-analysis was conducted for the comparison of bite force and masticatory performance using standardized mean difference (SMD). Of the 3837 records identified, nine studies, corresponding to eleven papers and 302 participants, were included in the analysis.
Results: Results of meta-analysis showed that the maximum bite force of stroke patients was significantly lower compared with the healthy individuals (SMD -0.52, 95% CI: -0.95 to -0.08, P = 0.02). There was no significant difference between the ipsi-lesional and the contra-lesional sides of the same stroke patient (SMD 0.13, 95% CI: -0.14 to 0.39, P = 0.34). The chewing efficiency of stroke patients was poorer compared to healthy persons (SMD -0.97, 95% CI: 0.57 to 1.37, P < 0.00001), and the contra-lesional side was worse than the ipsi-lesional side. Electromyographic analysis indicated that the muscle activation of stroke patients was poorer than the healthy individuals, and stroke patients might have dysfunction in the recruiting and firing of motor units.
Conclusions: Both maximum bite force and chewing efficiency of stroke patients are lower than that of the healthy individuals, with more reduction found in chewing efficiency.
Methods: Four electronic databases (Medline, Embase, CINAHL and Web of Science) were searched for relevant observational studies and clinical trials (up to Jun 2021) on masticatory performance of stroke patients. Two reviewers independently performed the study selection and quality assessments (using JBI Critical Appraisal Checklist). Meta-analysis was conducted for the comparison of bite force and masticatory performance using standardized mean difference (SMD). Of the 3837 records identified, nine studies, corresponding to eleven papers and 302 participants, were included in the analysis.
Results: Results of meta-analysis showed that the maximum bite force of stroke patients was significantly lower compared with the healthy individuals (SMD -0.52, 95% CI: -0.95 to -0.08, P = 0.02). There was no significant difference between the ipsi-lesional and the contra-lesional sides of the same stroke patient (SMD 0.13, 95% CI: -0.14 to 0.39, P = 0.34). The chewing efficiency of stroke patients was poorer compared to healthy persons (SMD -0.97, 95% CI: 0.57 to 1.37, P < 0.00001), and the contra-lesional side was worse than the ipsi-lesional side. Electromyographic analysis indicated that the muscle activation of stroke patients was poorer than the healthy individuals, and stroke patients might have dysfunction in the recruiting and firing of motor units.
Conclusions: Both maximum bite force and chewing efficiency of stroke patients are lower than that of the healthy individuals, with more reduction found in chewing efficiency.