What are the benefits of DBS?

When the DBS is turned “on”, it can block the part of the brain causing spasmodic dysphonia. Here is a video of a patient in the DEBUSSY Trial before their DBS surgery and one month after their surgery.

Before their surgery, it is difficult for the patient to speak. After surgery, it is much easier for her to speak.

In order to demonstrate the continued benefit of DBS, here is a video of the same patient one year after their surgery. They are reading the same sentence with the DBS turned “ON” and then again with the DBS turned “OFF” and finally one more time with the DBS turned back “ON”.

When the DBS turned “ON”, they read the sentence in 8 seconds. When the DBS is turned “OFF”, they read the same sentence in 24 seconds and with greater effort and strain.

What are the risks of DBS?

DBS is a brain operation and has risks that can vary between patients and institutions. Patients must speak directly with their surgeon to learn their individual risks. In general, the potential risks of DBS surgery include but are not limited to stroke, infection, and inadequate improvement. In the last twenty years (over 1,000 implants), we have had no deaths, two strokes, and approximately a 2% infection rate.


Please contact our research nurse by email.

About Stop SD

Dr. Honey was the first to prove that spasmodic dysphonia (SD) could be dramatically improved with deep brain stimulation (DBS). With a grant from the National Spasmodic Dysphonia Association, he will publish the first prospective, double-blind, randomized, trial to confirm that DBS can improve both the voice and the quality of life of patients with SD. We are now offering this life changing surgery for patients with SD.

Contact Info

8103 – 2775 Laurel Street,
Vancouver General Hospital
Vancouver, BC, V5Z 1M9