Rehabilitation: Post-Laryngectomy Voice
High-Yield Revision Notes for Board Review & PG Entrance Examinations
Vocal rehabilitation is essential following a total laryngectomy, as the patient no longer has a natural glottic source for speech. Three main methods are used to restore voice:
1. Modalities of Speech Restoration
| Method | Mechanism | Pros/Cons |
|---|---|---|
| Tracheoesophageal Puncture (TEP) | Insertion of a one-way valve (e.g., Blom-Singer) to shunt air from the trachea into the esophagus. | Gold standard for speech quality and fluency. |
| Esophageal Speech | Patient “swallows” air into the esophagus and releases it in a controlled manner to vibrate the pharyngoesophageal (PE) segment. | No external devices; difficult to learn. |
| Electrolarynx | An external mechanical device held against the neck/cheek to create vibrations. | Easy to use; sounds robotic/monotone. |
2. Critical Clinical Considerations
- PE Segment: The pharyngoesophageal segment (cricopharyngeus muscle) acts as the new “vocal cord” substitute for TEP and esophageal speech. If this segment is hypertonic, speech will fail.
- TEP Failure: Most commonly caused by fungal colonization (Candida) of the valve or anatomical problems like pharyngeal strictures.
- Post-op Care: A Heat and Moisture Exchanger (HME) is used to filter, warm, and humidify air entering the stoma, as the natural nasal/laryngeal filtration is lost.
3. High-Yield Board Exam Facts
- Best Voice Quality: TEP provides the most natural, intelligible, and rapid speech restoration.
- Contraindication for TEP: Patients who cannot handle a device (cognitive impairment) or those with advanced pharyngeal disease.
- Primary vs. Secondary TEP: Primary TEP is performed at the time of the original laryngectomy; secondary TEP is performed as a later, separate procedure.
- Voice Therapy: In non-surgical cases (e.g., nodules), voice therapy (hygiene, resonance exercises) remains the primary intervention to prevent permanent damage.