The information on this website is not intended for diagnosis or treatment. Please consult your physician for health concerns.

+90 850 321 50 00

TMS for Treatment-Resistant Depression

Modulation of the dorsolateral prefrontal cortex with transcranial magnetic stimulation.

Written by: Saygı Hospital Health Guide Editorial Board
Published:

This content is for general information; please consult your physician for diagnosis and treatment.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Psikiyatri department. Book Appointment →

What is TMS for Treatment-Resistant Depression?

Repetitive transcranial magnetic stimulation (rTMS) is an FDA-approved, non-invasive neuromodulation therapy for treatment-resistant depression (TRD). It uses focused magnetic pulses delivered through a coil placed on the scalp to induce electrical currents in cortical neurons, producing lasting changes in neural circuits implicated in mood regulation.

Treatment-resistant depression is typically defined as failure to achieve adequate response after two or more antidepressant trials of sufficient dose and duration. Approximately 30% of patients with major depression meet TRD criteria and become candidates for advanced therapies including rTMS, esketamine, ECT, and vagal nerve stimulation. rTMS offers good efficacy with minimal side effects compared to ECT.

Standard rTMS protocols target the left dorsolateral prefrontal cortex (DLPFC) with high-frequency (10 Hz) stimulation over 30-37 sessions across 6-9 weeks. Newer accelerated protocols (Stanford SAINT) deliver 50 sessions over 5 days with intermittent theta-burst stimulation, achieving rapid response. Response rates range from 40-60% with remission in 25-35% of patients.

Symptoms

Persistent depressed mood despite adequate antidepressant trials
Loss of interest or pleasure (anhedonia) for over 2 weeks
Sleep disturbances (insomnia or hypersomnia)
Appetite changes and weight loss/gain
Fatigue and loss of energy
Feelings of worthlessness or excessive guilt
Poor concentration and decision-making
Suicidal ideation or behavior

Risk Factors

Failure of two or more adequate antidepressant trials
Severe major depression with significant functional impairment
Contraindication to ECT or unwillingness to undergo ECT
Patient preference for non-pharmacologic treatment
Comorbid anxiety disorder enhancing TMS response
Younger age (better response than elderly)
Shorter duration of current depressive episode
Absence of psychotic features

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Persistent depressive symptoms despite multiple antidepressant trials
  • Inadequate response after 6-8 weeks of optimal antidepressant therapy
  • Significant medication side effects limiting tolerability
  • Functional impairment despite partial improvement
  • Persistent suicidal ideation requiring rapid intervention
  • Comorbid anxiety, OCD, or PTSD with depression
  • Patients seeking non-medication treatment options
  • Pregnancy with depression where antidepressants are concerning

Treatment Methods

01
Pre-treatment evaluation: psychiatric assessment, motor threshold determination, exclusion of seizure risk
02
Standard high-frequency rTMS: 10 Hz left DLPFC, 30-37 sessions over 6-9 weeks, 3000 pulses/session
03
Theta-burst stimulation (TBS): 3-minute protocol with comparable efficacy
04
Accelerated TMS (SAINT): 10 sessions/day for 5 days using imaging-guided targeting
05
Maintenance TMS: monthly sessions to prevent relapse in responders
06
Combined therapy: continue antidepressants and psychotherapy throughout TMS
07
Side effect management: scalp discomfort, headache, rare seizure risk under 0.1%
08
Outcome monitoring: standardized depression scales (PHQ-9, MADRS) before, during, after

Which Department to Visit?

You can visit our Psikiyatri department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Psikiyatri Department

Let us help you

You can make an appointment with our specialists or contact us for your concerns.

Book AppointmentContact Us

Related Health Topics

Other articles from the same department you may want to explore.

Generalized Anxiety Disorder (GAD)

Psikiyatri

Generalized anxiety disorder is characterized by excessive, difficult-to-control worry most days for at least six months, accompanied by physical symptoms such as muscle tension, fatigue, and sleep disturbance that impair daily functioning.

Psychiatric Insomnia and Sleep Disorders

Psikiyatri

Effects of depression, anxiety and other psychiatric disorders on sleep and their treatment.

Depression

Psikiyatri

What is depression, how does it differ from sadness, and how is it treated?

Anxiety Disorder

Psikiyatri

What is anxiety disorder, how does it differ from normal worry, and how is it overcome?

Panic Attack

Psikiyatri

What is a panic attack, how is this condition — often confused with a heart attack — managed and prevented?

OCD (Obsessive Compulsive Disorder)

Psikiyatri

What is OCD, how are intrusive thoughts and compulsive behaviors treated?

PTSD (Post-Traumatic Stress Disorder)

Psikiyatri

What is PTSD, how are flashbacks and hyperarousal after trauma treated?

Bipolar Disorder

Psikiyatri

Bipolar disorder is a chronic mood disorder characterized by episodes of mania or hypomania alternating with depressive episodes; accurate diagnosis and long-term treatment with mood stabilizers are essential to reduce relapses and improve functioning.

Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.