Voice prosthesis

An overview of voice prosthesis used in medical treatments

A voice prosthesis is a medical device used to help individuals who have lost their natural voice due to a laryngectomy or other medical conditions. This device is typically used by patients who have undergone surgery for laryngeal cancer and have had their larynx removed, resulting in the loss of normal voice production.

A typical voice prosthesis device

Function

The primary function of a voice prosthesis is to enable tracheoesophageal speech, which is a method of voice restoration. After a laryngectomy, a surgical procedure creates a small opening between the trachea and the esophagus, known as a tracheoesophageal puncture (TEP). The voice prosthesis is inserted into this puncture to allow air from the lungs to pass into the esophagus, where it vibrates the esophageal tissues to produce sound.

Types of Voice Prostheses

There are several types of voice prostheses, each designed to meet specific needs of patients:

• Indwelling Prostheses: These are designed to be long-lasting and are typically replaced by a healthcare professional.
• Non-indwelling Prostheses: These can be removed and cleaned by the patient themselves, offering more independence.

Insertion and Maintenance

The insertion of a voice prosthesis is a relatively simple procedure that can be performed in a clinical setting. Maintenance of the device is crucial to prevent complications such as infection or blockage. Regular cleaning and periodic replacement are necessary to ensure optimal function.

Advantages and Limitations

Voice prostheses offer several advantages, including the ability to produce a more natural-sounding voice compared to other methods such as electrolarynx or esophageal speech. However, they also have limitations, such as the need for regular maintenance and the potential for device-related complications.

Related Pages

• Laryngectomy
• Laryngeal cancer
• Tracheoesophageal speech
• Electrolarynx