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Swallowing before and after tonsillectomy as evaluated by surface electromyography.

Michael Vaiman¹, Daniel Krakovski, Haim Gavriel

¹Department of Otolaryngology, Assaf Harofe Medical Center, Affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. vaimed@yahoo.com

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery

|June 30, 2007

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Surface electromyography (sEMG) objectively evaluated tonsillectomy recovery in 40 adults. Post-surgery, muscle activity and drinking duration were altered, normalizing within one month, indicating sEMG

Area of Science:

Otorhinolaryngology
Neuromuscular Physiology
Surgical Recovery Assessment

Background:

Tonsillectomy recovery is often subjectively assessed.
Objective measures are needed to evaluate functional deficits post-tonsillectomy.
Muscle function during deglutition is critical for post-surgical recovery.

Purpose of the Study:

To objectively evaluate adult recovery after tonsillectomy using surface electromyography (sEMG).
To assess changes in muscle activity and swallowing/drinking timing.
To establish sEMG as a reliable tool for postoperative tonsillectomy evaluation.

Main Methods:

sEMG was performed on 40 adult patients post-tonsillectomy.
Evaluated parameters included swallowing and drinking timing, masseter (MS) muscle electric activity and patterns.

Related Experiment Videos

Infrahyoid (INF) and submental (SUB) muscle activity was measured and compared to a normative database.

Main Results:

Patients showed significantly increased duration of drinking periods; single-swallow durations remained normal.
Electric activity of MS and INF muscles was significantly higher compared to the normative database.
Complete normalization of all EMG data was observed within one month post-surgery.

Conclusions:

Tonsillectomy impacts deglutition muscle activity, engaging additional muscles.
sEMG provides a simple, reliable method for objective postoperative evaluation and comparison of tonsillectomy techniques.
sEMG can monitor throat muscle recovery and functional improvement in pre- and postoperative stages.