TMS benefits vary in duration; Montana follow-up plans may include monitoring, therapy or medication support, and maintenance sessions if depression returns.
How Long Do TMS Results Last? A Montana Guide to Follow-Up Care
Transcranial magnetic stimulation (TMS) is a non-invasive treatment most often used for major depressive disorder. It was cleared by the FDA for major depressive disorder in 2008, and for depression with comorbid anxiety in 2021.
A common question after a course of treatment is: how long will the benefits last? There is no single answer. Some people remain well for a long time after finishing TMS, while others notice symptoms returning sooner and may need further support. The durability of results can depend on the person’s depression history, current stressors, medication plan, therapy, physical health and whether they have had repeated episodes in the past.
In Montana, planning follow-up care is an important part of treatment rather than something to consider only if symptoms return. A clinic should discuss what happens after the final session, who will monitor progress and what options may be available if depression begins to recur.
What happens after a standard TMS course?
A standard TMS course commonly involves about 36 weekday sessions over six to nine weeks. Treatment schedules can vary, particularly where a clinician recommends a different protocol or a patient needs adjustments because of work, travel, illness or other commitments.
During the treatment course, a TMS team will usually monitor changes in mood and daily functioning. They may ask about sleep, motivation, concentration, anxiety, appetite, energy and thoughts of self-harm. These conversations help show whether treatment is helping and may also provide a useful baseline for follow-up.
At the end of the acute course, some people feel clearly better, while others have had a more gradual improvement. Recovery does not always look the same for everyone. A person may first notice that it is easier to get out of bed or manage routine tasks, before they feel a fuller change in mood. Others may see improvements in negative thinking, emotional steadiness or interest in activities.
Finishing the scheduled sessions is not necessarily the end of care. The next stage is usually a plan to preserve gains and identify early signs that more support is needed.
How durable are TMS results?
TMS can provide lasting improvement for some people, but depression is often a recurring condition. A return of symptoms does not automatically mean that TMS failed. It may mean that the person’s underlying condition needs continuing management, just as it might after improvement with medication, talking therapy or another treatment.
The length of benefit varies considerably. Factors that may affect it include:
- Whether depression has been recurrent or long-standing
- The severity of symptoms before treatment
- Previous responses to medication, therapy or other treatments
- Ongoing anxiety, trauma, substance use or physical health conditions
- Major life pressures, bereavement, relationship difficulties or work changes
- Whether follow-up mental health care is in place
- Changes to medication after TMS
It is helpful to think of TMS as one part of a broader treatment plan. Many people continue with medicines prescribed by their mental health clinician, psychological therapy, primary care follow-up, healthy routines and support from family or friends. No single approach can guarantee that depression will not return, but ongoing care can make changes easier to spot and address.
Relapse, recurrence and temporary setbacks
People sometimes use the word “relapse” to describe any difficult period after treatment. Clinicians may distinguish between a return of symptoms soon after improvement and a new depressive episode following a longer period of wellness. In everyday terms, what matters most is whether symptoms are becoming persistent, affecting daily life or creating a safety concern.
A brief dip in mood does not always mean that a person needs another course of TMS. Stress, poor sleep, illness and seasonal changes can all affect how someone feels. However, it is sensible to contact a clinician if low mood is lasting, worsening or beginning to interfere with work, relationships, self-care or usual activities.
Possible early warning signs can include:
- Sleeping much more or less than usual
- Withdrawing from friends, family or activities
- Losing interest in previously enjoyable things
- Increasing hopelessness, guilt or irritability
- Reduced concentration or motivation
- Changes in appetite or energy
- More frequent anxiety or panic symptoms
- Thoughts that life is not worth living
Keeping a simple record of symptoms after TMS can be useful. Some people note sleep, mood, activity and anxiety in a diary or app. Others prefer regular check-ins with a therapist, psychiatrist, primary care clinician or TMS clinic. The aim is not to monitor every feeling closely, but to recognise patterns before symptoms become overwhelming.
If someone has thoughts of harming themselves or feels unable to stay safe, they should seek urgent help through local emergency services or a crisis service rather than waiting for a routine follow-up appointment.
Maintenance TMS: what it means
Maintenance TMS generally refers to occasional treatment sessions after the initial course, intended to help sustain improvement or respond to early symptom changes. There is no one maintenance schedule that suits everybody.
Some clinicians may recommend planned sessions at intervals after the acute treatment course. Others may prefer a watchful follow-up approach, with additional sessions only if symptoms return. The best approach depends on the individual’s history, response to TMS, current treatment plan and practical circumstances.
Before agreeing to maintenance treatment, it is reasonable to ask:
- What is the purpose of these sessions in my situation?
- How will we decide whether maintenance is helping?
- How often might I need to attend, and for how long?
- What symptoms should prompt me to contact the clinic sooner?
- Will I continue medication or therapy alongside TMS?
- Is maintenance treatment covered by my insurance plan, or would prior authorisation be needed?
- What happens if I move, travel or cannot attend regularly?
Insurance coverage for maintenance TMS and repeat treatment can differ from coverage for an initial course. Montana residents may encounter plans from Blue Cross and Blue Shield of Montana, PacificSource Health Plans, UnitedHealthcare, Aetna, Cigna, Allegiance Benefit Plan Management, Montana Medicaid or Medicare. It is important to check directly with the insurer and clinic, as eligibility, authorisation requirements and out-of-pocket responsibilities can vary by plan.
Re-treatment if symptoms return
If depression returns after a period of improvement, a clinician may discuss re-treatment with TMS. This may involve another course of sessions, though the recommended plan should be based on a fresh clinical assessment rather than an assumption that the previous schedule will automatically be repeated.
A re-treatment discussion may include current symptoms, medication changes, therapy involvement, physical health, new diagnoses, substance use and any changes since the first TMS course. The clinician may also review how well the first course worked, how long improvements lasted and whether there were any difficulties with attendance or side effects.
TMS is generally well tolerated. The most common side effects are scalp discomfort and headache, usually around the time of treatment. Seizure is rare, but the clinic should review relevant medical history and changes in medication or health before treatment begins or resumes.
Planning follow-up care in Montana
Montana’s geography can make regular follow-up more complicated, especially for people travelling between communities or from rural areas. It is worth discussing practical planning before the last treatment session. Ask whether appointments can be coordinated with other care, whether symptom check-ins can happen remotely where appropriate, and who to contact if concerns arise between visits.
TMS Therapy Montana currently lists 12 published clinics across the state. Directory listings include clinics in Billings and Bozeman, as well as Havre, Great Falls and Missoula. Availability, treatment protocols and follow-up arrangements can differ between providers, so contact clinics directly to ask about their approach to maintenance and re-treatment.
A written follow-up plan can make the period after TMS feel more manageable. It might include the name of the clinician responsible for ongoing care, planned review dates, current medications, therapy arrangements, warning signs to watch for and urgent contact options. Share the plan with appropriate members of your care team, and with a trusted person if that feels helpful.
Getting help in Montana
Use the TMS Therapy Montana clinic listings to find published providers in your area, review the insurance guide for questions about cover, and visit the contact page for help using the directory.
This is educational information, not medical advice.
This page is informational and is not medical advice.