Your left eye starts to flutter halfway through a client presentation. A moment later, the corner of your mouth tugs upward on the same side. It may pass within a few seconds, but you can tell the people across the table noticed.
For many people with hemifacial spasm, Botox injections bring a few months of calm before the twitching returns, but this approach requires multiple appointments as you keep going back for more treatment. That cycle can wear on you, especially with a full work calendar. Surgery offers another route. Microvascular decompression (MVD) has a high rate of success, with around 90% of patients reporting they were spasm-free a little over a year after treatment.
If you're comparing options and looking for the best hemifacial spasm surgeon in Santa Barbara to help build a long-term plan, it helps to understand how each treatment works and what it can realistically do for you. Read on to learn more about hemifacial spasm, MVD, and where to find a surgeon who can help.
What Causes Hemifacial Spasm?
Hemifacial spasm makes the muscles on one side of your face twitch or tighten without warning. In most cases, a small blood vessel near the brainstem presses against the facial nerve. Each pulse of blood irritates the nerve, and the nerve responds by sending signals to your face muscles when it shouldn’t.
The spasms usually start around one eye and spread toward the cheek and mouth over time. You might notice:
- Twitching that gets worse with stress or fatigue
- An eyelid that squeezes shut on its own
- A pulling or tight feeling on one side of your face
- Spasms that continue while you sleep
Because the problem starts with pressure on the nerve, the spasms tend to become more frequent and stronger without treatment.
How Does Botox Treat Hemifacial Spasm?
Botox is the most common first treatment for hemifacial spasm, and it works well for many people. A provider injects small amounts into the overactive muscles around your eye, cheek, and mouth. The medicine blocks the signal between the nerve and the muscle so the muscle can relax. Most people feel the effect within a few days to a week, and results typically last three to six months. Side effects are usually mild and temporary, including:
- A droopy eyelid
- Dry or watery eyes
- Mild weakness on the treated side of the face
Botox calms the muscles. The blood vessel pressing on the nerve stays where it is, which is why the spasms come back once the medicine fades.
The Downside of Choosing Botox as a Hemifacial Spasm Treatment
For a busy professional, a three- to six-month cycle adds up fast. Over five years, you could need 10 to 20 rounds of injections. Each round means a trip to the office, time away from work, and a few weeks of waiting to see how well it takes.
The cycle tends to follow a pattern. The first few weeks after an injection feel great. Then, as the medicine wears off, the twitching creeps back in, sometimes during a video call or a long drive. Some people start scheduling important meetings around their injection dates. When managing symptoms starts to feel like a part-time job, MVD surgery is worth a conversation.
How MVD Surgery Treats the Source of the Spasm
Microvascular decompression is a surgery that moves the blood vessel off the facial nerve. Once the pressure is gone, the nerve can settle down and stop sending false signals to your face. During MVD, your surgeon:
- Makes a small incision behind your ear while you sleep under general anesthesia
- Creates a small opening in the skull to reach the facial nerve near the brainstem
- Uses a surgical microscope to find the blood vessel pressing on the nerve
- Moves the vessel away and secures it so it can’t drift back
The best hemifacial spasm surgeons in Santa Barbara perform MVD with a sling technique, which holds the blood vessel away from the nerve and gives the nerve space to recover.
Am I a Good Candidate for MVD Surgery?
MVD may be a good fit if you:
- Have an MRI that shows a blood vessel touching your facial nerve
- Notice your Botox results fading sooner or working less well
- Deal with injection side effects that interfere with daily life
- Want a long-term answer and are healthy enough for surgery
What to Expect During MVD Recovery
Most patients can go home the same day or the next day after MVD. Fatigue and some soreness near the incision are normal for the first couple of weeks. Many people with desk jobs return to work within two to four weeks, and those with physical jobs may need more time. For some, relief comes right away. For others, it builds gradually over several months as the nerve heals.
Looking for the Best Hemifacial Spasm Surgeon in Santa Barbara?
MVD surgery requires a surgeon who is highly skilled in delicate nerve and blood vessel work. For those across Southern California, Dr. Arnau Benet is the clear choice. He is a cerebrovascular neurosurgeon who trained at Barrow Neurological Institute and completed advanced fellowship training in cerebrovascular and skull base surgery in Japan. He previously directed the Skull Base and Cerebrovascular Laboratory at UCSF and now serves as director of vascular neurosurgery at Los Robles Medical Center. That background in skull base anatomy and microsurgery is important for MVD, which takes place in a tight space near the brainstem.
Our teams in Westlake Village and Santa Barbara are trusted by patients across Los Angeles and Southern California, along with many who travel from Las Vegas and Hawaii. If you’re looking for the best hemifacial spasm surgeon in Santa Barbara, we’re here to help you decide whether MVD is the right next step.
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