 |
|
Electromyography in Near-Total Laryngectomy
Gujjar Ramrao Arunodaya, DM;
Ashok M. Shenoy, MS;
Sharma Premalata, MSc
Arch Otolaryngol Head Neck Surg. 1998;124:857-860.
Objective To investigate the dynamics of speech shunt muscle in patients with Pearson near-total laryngectomy by needle electromyography and correlation of ability to activate shunt muscle with speech production.
Design and Settings Prospective study of patients with near-total laryngectomy at 2 hospital-based academic tertiary care centers.
Participants and Intervention Fourteen patients with near-total laryngectomy were subjected to percutaneous needle electromyographic study of the shunt muscle.
Main Outcome Measures Speech ability, electromyographic evidence of viable muscle in shunt wall, and ability to activate shunt muscle were recorded.
Results Twelve of 14 patients had good speech; 11 had evidence of viable shunt muscle; and 9 were able to activate muscle by phonation, swallowing, or deep breathing, indicating preserved innervation. Six of the 12 patients with speech ability and 1 of the 2 patients without speech ability were able to recruit motor units during attempted phonation.
Conclusions Electromyography demonstrated viable muscle with retained innervation in 64% of the patients with near-total laryngectomy, proving its "dynamic" nature. However, the usefulness of shunt muscle activation in speech and prevention of aspiration needs further confirmation.
From the Department of Neurology, National Institute of Mental Health and Neurosciences (Dr Arunodaya), and the Departments of Head and Neck Surgery (Dr Shenoy) and Speech Pathology (Ms Premalata), Kidwai Memorial Institute of Oncology, Bangalore, India.
 CiteULike  Connotea  Del.icio.us  Digg  Reddit  Technorati  Twitter
What's this?
|
