How TMS works

TMS Side Effects and Safety: A Vermont Patient Guide

TMS Therapy Vermont editorial teamEditorial review
September 27, 20266 min read
Key takeaway

TMS is a non-invasive depression treatment that may cause temporary scalp discomfort, headaches or fatigue, while Vermont providers screen for rare risks and implants.

TMS Side Effects and Safety in Vermont

Transcranial magnetic stimulation (TMS) is a non-invasive treatment that uses magnetic pulses to stimulate targeted areas of the brain. It is most often considered for major depressive disorder, particularly when other treatments have not provided enough benefit or have caused difficult side effects.

TMS was cleared by the FDA for major depressive disorder in 2008, and for depression with comorbid anxiety in 2021. It does not involve surgery, anaesthesia or electrical current being passed through the body. During treatment, a clinician places a magnetic coil against the scalp while you remain awake and seated.

For many people, the main side effects are temporary scalp discomfort or headache. Serious complications are uncommon, but safety screening remains an important part of starting treatment. A Vermont TMS provider should review your medical history, medicines and any implanted devices before recommending a course.

What TMS treatment feels like

During a TMS session, you may hear clicking sounds from the machine and feel tapping, knocking or tingling sensations on the scalp. The exact sensation can vary depending on the treatment area, the settings used and your own sensitivity.

A standard course often involves about 36 weekday sessions delivered over roughly six to nine weeks. Appointments are usually short, although the time needed can vary by treatment protocol and clinic. Your provider can explain how their programme is organised and what to expect before, during and after each session.

TMS does not usually require recovery time after an appointment. Many people return to usual activities afterwards. However, if you feel unwell, unusually tired or distracted by a headache, it is sensible to discuss this with the treating team before driving or resuming demanding tasks.

Common side effects

The most commonly reported TMS side effects are discomfort at the treatment site and headache. These effects are generally mild to moderate and may become easier to tolerate as treatment continues.

Common experiences can include:

  • Scalp tenderness, pressure, tingling or discomfort during treatment
  • Headache after a session
  • Temporary discomfort in the face or jaw area from stimulation of nearby muscles
  • Tiredness or feeling a little unsettled after an appointment
  • Discomfort from the sound of the machine, although hearing protection is normally used

Tell the clinician promptly if the treatment feels painful or difficult to tolerate. The team may be able to adjust coil position, stimulation settings or other practical aspects of the session. Do not assume you simply have to put up with significant discomfort.

It can also help to tell the provider whether you are prone to headaches, migraines, jaw pain or scalp sensitivity. This information does not necessarily mean TMS is unsuitable, but it can help with planning and monitoring.

The rare risk of seizure

Seizure is a rare but recognised risk of TMS. This is one reason treatment should be provided with appropriate clinical screening and supervision.

Your clinician should ask about factors that may affect seizure risk. These can include a personal history of seizures, epilepsy, a previous significant head injury, neurological conditions, medication changes, alcohol or substance use, and severe sleep deprivation. The purpose of these questions is not to exclude people automatically. It is to allow the clinician to assess whether TMS is appropriate and whether any additional precautions are needed.

Be open about changes during the course of treatment as well. For example, tell the team if you have started, stopped or changed a medicine, have been sleeping very poorly, or have had a significant change in alcohol or substance use. These details can matter to safety planning.

If you experience anything that could suggest a seizure or another urgent medical problem, seek immediate medical help. Your TMS clinic should also explain what to do if you feel unwell outside appointment hours.

Contraindications and safety screening

TMS is not suitable for everyone. Before treatment begins, a clinician should review your history carefully and consider whether there are reasons not to proceed.

Particular attention is usually given to implanted metal or electronic devices in or near the head. Some implanted devices and metal objects may be affected by the magnetic field, or may make treatment unsafe. It is important to mention anything relevant, even if it seems unrelated to mental health treatment.

This can include:

  • Cochlear implants or other hearing implants
  • Implanted neurostimulators
  • Metal plates, clips, fragments or other metal in the head or face
  • Aneurysm clips or other surgical clips
  • Any implanted electronic medical device
  • Previous brain, head or facial surgery

Do not rely on memory alone if you are uncertain about an implant or past procedure. If possible, bring records, implant information cards or details of the surgeon or hospital involved. Your provider may need further information before confirming whether TMS can go ahead.

A history of seizures does not always mean that treatment is impossible, but it needs a specific clinical discussion. Likewise, a history of head injury, stroke, brain surgery or neurological illness should be disclosed. Your clinician may decide that TMS is not appropriate, that another treatment should be considered, or that further assessment is required first.

Medicines, health conditions and daily habits

Bring an up-to-date list of all medicines you take. This should include prescriptions, over-the-counter medicines, supplements and any recent changes. Do not stop or alter medication simply because you are considering TMS unless the clinician responsible for your care advises you to do so.

It is also helpful to mention:

  • Any diagnosis of epilepsy or past seizure
  • Head injuries, loss of consciousness or neurological symptoms
  • Current or previous alcohol or substance-use concerns
  • Major changes in sleep, including several nights of very little sleep
  • Pregnancy or plans for pregnancy
  • Hearing difficulties or use of hearing devices
  • Migraines, chronic pain, jaw problems or scalp conditions
  • Any previous experience with TMS or other brain-stimulation treatment

The clinician needs an accurate picture of your health rather than a “perfect” history. Sharing sensitive information helps them make treatment safer and more appropriate.

Questions to ask your Vermont TMS provider

A consultation is a chance to understand both potential benefits and possible risks. You may wish to ask:

  • What side effects are most likely with this treatment plan?
  • How will you respond if I have scalp pain or headaches?
  • Have you reviewed my medicines and implant history?
  • Do any aspects of my health history affect seizure risk?
  • What should I report between appointments?
  • Who should I contact if I have concerns outside clinic hours?
  • What happens if TMS does not feel tolerable?

It may be useful to bring a family member, friend or written list of questions to the appointment. Clear communication can make it easier to decide whether the treatment approach feels right for you.

Finding support and information in Vermont

TMS Therapy Vermont currently lists six published clinics, with directory listings in Colchester, South Burlington, Montpelier, Brattleboro, Bradford and St. Albans. Availability, assessment processes and accepted insurance can differ between providers.

Before arranging treatment, ask a clinic whether it works with your insurance plan and whether prior authorisation may be needed. Plans commonly seen in Vermont include Blue Cross and Blue Shield of Vermont, MVP Health Care, Cigna, Aetna and Vermont Medicaid, also known as Green Mountain Care. Coverage depends on your individual policy, clinical circumstances and the provider’s arrangements.

Getting help in Vermont

Visit the TMS Therapy Vermont clinic listings to compare local providers, the insurance guide for practical coverage information, and the contact page if you need help using the directory.

This information is educational only and is not medical advice.

This page is informational and is not medical advice.

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