How Long Do TMS Results Last? A Illinois Guide to Follow-Up Care

How Long Do TMS Results Last? A Illinois Guide to Follow-Up Care

Transcranial magnetic stimulation (TMS) is a non-invasive treatment most often used for major depressive disorder. It uses magnetic pulses applied to areas of the brain involved in mood regulation. In the United States, TMS received FDA clearance for major depressive disorder in 2008, and for depression with comorbid anxiety in 2021.

A common question after treatment is: how long will the benefit last? There is no single answer. Some people continue to feel well for a long time after a course of TMS, while others notice symptoms returning sooner and may need further support. Follow-up care is an important part of planning for durable improvement.

In Illinois, people can discuss this planning with a TMS provider, psychiatrist, GP or primary care clinician, therapist, and any other professionals involved in their mental health care.

What happens after a course of TMS?

A standard course of TMS commonly involves about 36 weekday sessions over six to nine weeks. At the end of treatment, the clinic will usually review your symptoms, functioning, medication plan and next steps.

This final review matters even if you are feeling much better. Depression can affect sleep, energy, concentration, work, relationships and daily routines, not only mood. Looking at the wider picture can help you and your clinician decide what support is appropriate after the acute treatment course ends.

Your follow-up plan may include:

• A review appointment shortly after the final TMS session
• Further appointments with your prescribing clinician or psychiatrist
• Ongoing talking therapy, if this is part of your care
• Continuing, changing or reviewing antidepressant medication
• A plan for recognising early signs that symptoms may be returning
• Discussion of maintenance TMS or the option of re-treatment in future

TMS is often used alongside other forms of care rather than as a stand-alone plan. If medication or therapy has been helpful, a clinician may recommend continuing it after TMS. Any medication change should be discussed with the prescriber rather than made independently.

How durable are TMS results?

TMS can produce a meaningful reduction in depression symptoms for some people, but its effects are not guaranteed to last indefinitely. Depression itself can be recurrent, and a return of symptoms does not necessarily mean that TMS “failed”.

Durability can be influenced by many individual factors, including:

• Whether you achieved a partial response or a fuller remission during treatment
• Your previous pattern of depression and relapse
• Other mental or physical health conditions
• Ongoing stress, bereavement, work pressures or relationship difficulties
• Sleep, alcohol or substance use, and daily routine
• Whether other helpful treatment, such as medication or therapy, is continued
• Access to timely follow-up care

It can be useful to think of the end of TMS as a transition point rather than a finish line. The goal is not simply to wait and see whether symptoms return. It is to put support in place early, while you are feeling more stable.

Relapse and early warning signs

Relapse means that depression symptoms return after a period of improvement. For some people, symptoms come back gradually. Others notice a more sudden change. Keeping track of early warning signs may allow you to contact your care team before depression becomes more severe.

Early signs can vary from person to person. They may include:

• Sleeping much more or less than usual
• Withdrawing from friends, family or usual activities
• Lower motivation or difficulty keeping up with daily tasks
• Increasing hopelessness, irritability or anxiety
• Changes in appetite or concentration
• Missing medication doses or therapy appointments
• Returning thoughts of self-harm or suicide

It may help to write down your own personal warning signs at the end of treatment. You could also include practical steps, such as contacting your TMS clinic, arranging a medication review, speaking with a therapist, or asking a trusted person for support.

If you have thoughts of harming yourself, feel unable to stay safe, or are in immediate danger, seek urgent help through emergency services or a crisis service. Do not wait for a routine follow-up appointment.

Maintenance TMS: what it means

Maintenance TMS refers to further sessions given after the initial course, with the aim of helping sustain improvement or responding to early symptom changes. It is different from the intensive weekday schedule usually used for an acute course.

There is no single maintenance schedule that suits everyone. Some people do not have maintenance sessions and instead attend clinical reviews. Others may be offered occasional sessions, a short series of sessions after symptoms begin to return, or a more structured maintenance approach. The decision depends on your history, response to the initial course, preferences, availability of treatment and the clinician’s assessment.

Evidence and clinical practice around maintenance TMS are still developing, and insurance policies can differ. A clinic should be able to explain:

• Why maintenance TMS is being considered in your case
• What schedule, if any, is proposed
• How progress and side effects will be monitored
• What alternatives are available
• Whether authorisation or out-of-pocket costs may apply

Common side effects of TMS include scalp discomfort and headache. Seizure is rare. Tell the treatment team about any new medical issues, medication changes or concerns before further sessions.

Re-treatment when symptoms return

Re-treatment, sometimes called a repeat course or booster treatment, may be considered if depression returns after an earlier helpful course of TMS. It may involve a new assessment and a further series of sessions, rather than simply restarting treatment without review.

A clinician will usually want to understand what has changed since your first course. This may include the timing and pattern of returning symptoms, current medication, therapy, life events, sleep, substance use and any new health conditions. They may also review whether another treatment should be used alongside or instead of TMS.

If TMS helped previously, that experience can be useful information in planning future care. However, a past response does not guarantee that the same approach will work in exactly the same way again. Ask the clinic how they would measure progress and what they would recommend if improvement is limited.

Planning follow-up before treatment ends

It is easier to make decisions about follow-up while symptoms are improving than during a relapse. Before your final TMS sessions, consider asking for a written aftercare plan.

Useful questions include:

• Who should I contact if my symptoms begin to return?
• When should my next psychiatric or prescribing appointment take place?
• Should I continue my current medication and therapy?
• What symptoms would mean I need an earlier review?
• Is maintenance TMS appropriate for me?
• If I need re-treatment, what assessment and insurance approval might be required?
• Can the clinic coordinate with my therapist, GP or psychiatrist?

Keep a copy of the plan and, if you wish, share it with a family member or trusted support person. It can also be helpful to record your mood, sleep and activity after treatment. This does not need to be complicated; a brief regular note can make patterns easier to recognise.

Insurance and practical considerations in Illinois

Follow-up care and repeat TMS treatment may require insurance review, particularly when sessions are requested after the original authorised course has ended. Coverage decisions can depend on your individual plan, clinical history, provider network and documentation.

Insurance carriers commonly seen in Illinois include Blue Cross Blue Shield of Illinois, Aetna, Cigna, UnitedHealthcare, Humana, Meridian / Illinois Medicaid, Medicare including Advantage plans, and TRICARE East. The presence of a carrier in your area does not confirm that a particular clinic, service or maintenance schedule is covered.

Before arranging maintenance or re-treatment, ask both the clinic and insurer about network status, prior authorisation, referral requirements and expected patient costs. Keep records of prior treatment, symptom changes and correspondence about authorisation where possible.

Getting help in Illinois

TMS Therapy Illinois lists 218 published clinics across the state, including listings in Chicago, Rockford, Peoria, Naperville, Orland Park, Arlington Heights, Decatur, Plainfield, Springfield, Libertyville, Buffalo Grove and St. Charles. Use the directory’s clinic listings to compare local options, the insurance guide to prepare coverage questions, and the contact page if you need help navigating the information.

This article is educational information, not medical advice.