01858caa a2200169 4500 210629s9999 xx 000 0 und d 2225-4765 Rajasudhakar, R Effect of voice therapy in sulcus vocalis: A single case study 2016 Volume 63 Issue 1 Background: Sulcus vocalis is a structural deformity of the vocal ligament. It is the focal invagination of the epithelium deeply attaching to the vocal ligament. There is a dearth of literature on the outcome of voice therapy in sulcus vocalis condition. Objective: The primary objective of this study was to document voice characteristics of sulcus vocalis and the secondary objective was to establish the efficacy of voice therapy in a patient with sulcus vocalis. Method: A trial of voice therapy was given to the client who was diagnosed as having sulcus vocalis. Boon’s facilitation techniques were used in voice therapy along with other techniques such as breath holding and push and pull approach prior to surgery. Acoustic, aerodynamic, perceptual, quantitative measures of voice quality and self-rating measurements were performed before and after voice therapy. Results: Improvement was noticed in 10/10 acoustic, 4/4 aerodynamic, perceptual, dysphonia severity index and voice handicap index scores, which hinted that voice therapy can be an option critically for clients with sulcus vocalis in the initial stage.Conclusion: Voice therapy showed promising improvement in the study and it must be recommended as the initial treatment option before any surgical management. Efficacy; Fissure; Lamina propria; Sulcus vergeture; Voice rehabilitation South African Journal of Communication Disorders https://sajcd.org.za/index.php/sajcd/article/view/146/654 FJAS FJAS 18100 18100