Evidence and research

Does TMS Work? An Honest Guide to Response and Remission in Washington

The TMS Therapy Washington editorial teamEditorial review
September 24, 20266 min read
Key takeaway

TMS may help some people with depression, including after other treatments, but results vary; response means substantial symptom reduction, while remission means symptoms largely resolve.

Does TMS Work? An Honest Guide to Response and Remission in Washington

For people considering transcranial magnetic stimulation (TMS) in Washington, one of the most important questions is also one of the hardest to answer simply: does it work?

TMS can help some people with depression, including people whose symptoms have not improved enough with medication, talking therapy, or both. It does not work in the same way for everyone, and it is not a guaranteed cure. The most useful way to understand possible results is to look at the terms clinicians and published studies use: response and remission.

These terms describe different levels of improvement. They can help patients have more realistic conversations with a TMS provider about what treatment may involve and how progress will be assessed.

What TMS is intended to treat

TMS is a non-invasive treatment in which a magnetic coil is placed against the scalp to deliver brief magnetic pulses to selected areas of the brain. It does not require surgery and is usually carried out while the person is awake.

In the United States, TMS was cleared by the FDA for major depressive disorder in 2008. In 2021, FDA clearance also covered depression with comorbid anxiety symptoms. A standard course often involves about 36 weekday sessions over roughly six to nine weeks, although an individual treatment plan may differ.

TMS is commonly considered when depression has continued despite previous treatment. That does not mean someone has “failed” treatment. Depression can be difficult to treat, and different approaches may suit different people at different times.

What “response” means

In TMS research and clinical practice, a response usually means that depressive symptoms have reduced substantially from where they were at the start of treatment.

The exact method used to define response can vary between studies and clinics. Researchers often use validated depression questionnaires or clinician-rated scales, taken before treatment and at intervals during the course. A person may be described as having responded when their score has fallen by a specified amount.

In everyday terms, response might mean that someone notices meaningful changes such as:

  • getting out of bed more easily;
  • having more energy or motivation;
  • fewer days dominated by low mood;
  • improved concentration;
  • less hopelessness or irritability;
  • returning to some work, study, family, or social activities.

A response does not necessarily mean that all symptoms have gone. Someone may feel clearly better but still have sleep problems, low confidence, anxiety, or periods of low mood. Even so, a substantial improvement can matter greatly to day-to-day life.

What “remission” means

Remission generally means that symptoms have reduced to a minimal level, based on a recognised assessment scale and the person’s clinical picture.

It is a stronger outcome than response. A person in remission may no longer meet the usual threshold for an active depressive episode, although they may still need ongoing support, monitoring, or treatment.

Remission does not mean that depression can never return. Depression can be recurrent, and people who reach remission may still benefit from a longer-term plan that could include medication, psychological therapy, sleep and routine support, follow-up appointments, or other care recommended by their clinician.

It is also possible to improve without reaching formal remission. This is important because a treatment should not be judged only by a single label. If symptoms become less severe, safety improves, or someone is able to reconnect with ordinary life, those changes may still be clinically meaningful.

What published TMS trials report

Published trials of TMS for depression commonly report both response and remission outcomes. Their findings show that some participants experience substantial improvement, some reach remission, some have a smaller improvement, and others do not benefit enough for the treatment to be considered successful.

There is no single outcome figure that applies to every person in Washington or every TMS programme. Results differ between studies because the participants, treatment protocols, definitions of improvement, length of follow-up, and previous treatment histories can all differ.

For example, a trial involving people with long-standing depression that has not improved with several previous treatments may produce different results from a study involving people earlier in their treatment journey. Studies may also use different forms of TMS, different pulse schedules, and different symptom measures.

When reading a clinic website or discussing results with a provider, it is reasonable to ask:

  • How do you measure improvement during treatment?
  • What does your service mean by response and remission?
  • Which type of TMS protocol are you recommending, and why?
  • What happens if I improve only partly?
  • How will my existing medication or therapy be considered?
  • What follow-up is offered after the course ends?

A careful provider should be able to explain outcomes without promising a particular result.

Why individual results vary

Depression is not one uniform condition. Two people can both have a diagnosis of major depressive disorder while having different symptoms, histories, medical circumstances, and sources of stress. Those differences can affect how treatment feels and how much it helps.

Factors that may influence an individual’s result include:

  • how long depression has been present;
  • the severity and pattern of symptoms;
  • previous treatment history;
  • whether anxiety, trauma, substance use, chronic pain, or other health concerns are also present;
  • changes in medication during treatment;
  • sleep, alcohol or drug use, major life events, and practical pressures;
  • whether sessions can be attended consistently.

TMS is normally delivered repeatedly because its effects are expected to build over a course of treatment. Missing sessions may complicate the schedule, although a provider can explain what this means in an individual case.

Progress may also be uneven. Some people notice changes early, while others notice improvement later in the course. For some, close friends or family members notice changes before the person receiving treatment does. Regular symptom tracking can provide a clearer view than relying only on how a single difficult day feels.

Side effects and safety

TMS is generally carried out in an outpatient setting. Common side effects include scalp discomfort during treatment and headache afterwards. These are often temporary, but they should be discussed with the treatment team, particularly if they are difficult to manage.

Seizure is a rare risk. Before starting treatment, a clinician should review relevant medical history, medications, and factors that may affect safety. People should tell their provider about changes in medicines, new health conditions, sleep deprivation, alcohol or substance use, and any past seizure history.

If depression includes thoughts of self-harm or suicide, urgent support is important. TMS planning should not replace immediate crisis assessment or emergency care where this is needed.

Finding TMS information in Washington

TMS Therapy Washington currently lists 97 published clinics across the state. Directory listings include clinics in Camas and Seattle, with eight listed in each city; Vancouver, Battle Ground, Spokane, Bothell, Olympia, Renton, Liberty Lake, Bremerton, Everett, Bellevue, and other Washington communities also have listed options.

Practical access can affect whether a full course is manageable. Because treatment is commonly scheduled on weekdays over several weeks, it can be helpful to consider travel time, work or caring responsibilities, and appointment availability before beginning.

Insurance questions should be raised early. Carriers commonly seen in Washington include Premera Blue Cross, Regence BlueShield, Kaiser Permanente Washington, UnitedHealthcare, Aetna, Cigna, Apple Health, Medicare through Noridian Jurisdiction F, and TRICARE West. Coverage, clinical requirements, prior authorisation rules, and out-of-pocket costs can vary by plan and provider.

Getting help in Washington

Use the TMS Therapy Washington clinic listings to compare local options, read the insurance guide before contacting providers, and visit the contact page if you need help navigating the directory.

This article is educational information, not medical advice.

This page is informational and is not medical advice.

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