Abstract:ObjectiveTo investigate the effectiveness of voice training for functional voice disorder in patients with glottal dysraphism.MethodsTwenty-four patients suffering from functional voice disorder with glottal dysraphism went through a 8-week voice training. The training program included health education, muscle relaxation, laryngeal massage, warm voice, breathing training, voice training and resonance training. Electronic laryngoscopy, GRBAS evaluation, voice handicap index (VHI) and computer voice acoustic analysis were performed before and after the training procedure in all the patients, and the results were compared.ResultsAfter the voice training, electronic laryngoscopy revealed complete closure of glottis in 16 patients (66.67%, 16/24), smaller glottic fissure in 6 (25.00%, 6/24), and unchanged glottic fissure in 2 (8.33%, 2/24). As for the GRABS evaluation, the scales of grade (G)(0.61±0.66) and roughness (R)(0.51±0.58) after training were lower than those(1.91±0.87) (1.41±0.52)before training respectively, and the differences were both statistically significant (both P<0.05). The VHI value (29.21±21.02) after training was less than that (52.35±23.45) before training (P<0.05). The maximum phonation time (MPT) (15.24±3.64) after training was longer than that (9.02±3.45) before training (P<0.05). Computer voice acoustic analysis also showed that the Jitter, highest frequency(F0-High), lowest intensity(I-Low) and dysphonia severity index (DSI) after training(0.21±0.08%, 420.11±44.21 Hz, 54.21±3.20 dB, 1.62±0.82) got improved comparing with those before training(0.92±0.12%, 375.21±49.21 Hz, 56.81±3.42 dB, 0.21±1.02) (all P<0.05).ConclusionVoice training can improve glottal closure and voice quality in patients of functional voice disorder with glottal dysraphism.