Transcranial magnetic stimulation (TMS), also known as repetitive transcranial magnetic stimulation (TMS), is a non-invasive form of brain stimulation in which a changing magnetic field is used to cause electric current at a specific area of the brain through electromagnetic induction. .
An electric pulse generator, or stimulator, is connected to a magnetic coil, which in turn is connected to the scalp. The stimulator generates a changing electric current within the coil which induces a magnetic field, this field then causes a second inductance of inverted electric charge within the brain itself.
TMS has shown therapeutic potential in the central nervous system with a wide variety of disease states in neurology and mental health, with research still evolving. It has been approved by US-FDA currently for Migraine, Depression and OCD. It has also been postulated to be useful in treatment of Post Stroke Cognitive Deficits and Aphasias Patients who have failed to achieve an adequate response from medication, psychotherapy, or who are unable to tolerate medications, should consider TMS therapy.
When is TMS used?
Pharmacological treatment, lifestyle management and psychotherapy are the first line treatments for major depression, Migraine and OCD. These treatments, however, do not work for all patients. In these instances, TMS might be used as an alternative treatment, or to augment Pharmacotherapy or psychotherapy.
How long is an TMS procedure?
TMS therapy involves a series of treatment sessions. Treatment sessions vary in length depending on the TMS coil used and the number of pulses delivered but typically last around 30 – 40 minutes. Patients receive TMS 5 days a week. A typical course of TMS is 4 to 6 weeks. However, this can vary depending on an individual’s response to treatment.
Do I need to be hospitalized for a course of TMS?
Unlike ECT, TMS does not require any sedation or general anaesthesia, so patients are fully awake and aware during the treatment. There is no “recovery time”, so patients can drive home afterwards and return to their usual activities.
Who cannot get TMS therapy?
Patients with any type of non-removable metal in their heads (with the exception of braces or dental fillings), should not receive TMS. Failure to follow this rule could cause the object to heat up, move, or malfunction, and result in serious injury or death. The following is a list of metal implants that can prevent a patient from receiving TMS:
- Aneurysm clips or coils
- Stents in the neck or brain
- Deep brain stimulators
- Electrodes to monitor brain activity
- Metallic implants in your ears and eyes
- Shrapnel or bullet fragments in or near the head
- Facial tattoos with metallic or magnetic-sensitive ink
- Other metal devices or object implanted in or near the head
How can I get TMS treatment?
You must first be evaluated by one of our Physician to determine if TMS would be safe and appropriate for you.
Can I just get TMS without cognitive therapy?
TMS always works best in association with cognitive therapy for long standing results and avoiding relapses. It can either be taken simultaneously or subsequently.
How often do I need to come in for sessions?
These are done as daily sessions, 6- days a week
Are there any side-effects in TMS treatment?
There are hardly any side-effects to this treatment. Patient may experience mild discomfort during the therapy due to the clicking sound of the machine.
How is TMS different from Electroconvulsive Therapy (ECT)?
ECT is an invasive treatment that requires anaesthesia and sometimes hospitalization. It also has side effects like short term memory deficits and confusion. TMS on the other hand is non-invasive and done on OPD basis.
Can anxiety also be treated with TMS?
Yes anxiety associated with chronic depression can be treated with TMS.