Informed Consent
This is the patient informed consent document (ICD) for Transcranial Magnetic Stimulation Therapy (TMS).
This ICD describes the TMS treatment that your psychiatrist has prescribed and outlines for you the risks,
potential benefits, and any alternative treatments if you decide not to be treated with TMS.
You will be receiving TMS for the treatment of Major Depressive Disorder (MDD) or for Bipolar Depression.
What is TMS?
Transcranial Magnetic Stimulation (TMS) is a noninvasive technique used to apply brief magnetic pulses to the brain.
The pulses are administered by passing electrical currents through an electromagnetic coil placed adjacent to a patient's scalp.
The pulses induce an electric field in the underlying brain tissue.
When the induced field is above a certain threshold, and is directed in an appropriate orientation relative to nerve cell circuits
in the brain that are involved in regulating mood and other symptoms that occur in depression, then neurons in those circuits are affected
in a way that is believed to lead to improvement in depressive symptoms.
TMS is a technique approved by the Food and Drug Administration (FDA) for the treatment of MDD and several devices have been cleared
by the FDA for providing TMS therapy. The device that will be used in your treatments is the MagStim Rapid2 System or the MagVenture MagPro.
How does it work?
At your first TMS treatment session, your psychiatrist and a trained TMS technician will place the magnetic coil over your scalp
on the appropriate region of your head.
In order to calibrate the intensity of TMS that you will need, we will stimulate the region of your brain that makes the thumb move.
You will hear a clicking sound and feel a tapping sensation on your scalp. The device will be adjusted to give just enough energy to send
electromagnetic pulses into the brain so that your thumb twitches.
The intensity of stimulation that barely produces a movement in the thumb is called the motor threshold (MT).
Once your MT is determined, the magnetic coil will be moved to the location of the brain that scientists think may be responsible
for causing depression. The stimulation will be set to 120% of your MT.
During your series of TMS treatments the MT and precise placement of the coil will be periodically reevaluated by your psychiatrist.
After the first treatment, subsequent treatments may be given by the technician alone, but your psychiatrist, or a covering colleague
of your psychiatrist trained in TMS, will be immediately available for an emergency or other urgent matters.
Any required re-determinations of the MT or coil positioning during your treatments will be performed by your psychiatrist.
Each treatment session is delivered as a series of pulses (called a “train”), followed by a wait period.
There will be a total of 3000 pulses over the treatment session. The settings of the TMS device may be changed during the treatment series,
depending on your response.
Treatment is targeted to the region of your brain called the dorsolateral prefrontal cortex (DLPFC),
a region that scientists believe is involved in depression.
We plan to provide 30 treatment sessions in the treatment of your depression. These treatments will be given Mondays through Fridays
for 6 consecutive weeks. This is called an “acute series.”
The number of treatments that you are given might be more or less than 30 depending on the psychiatrist’s assessment of your progress,
including side effects. A change in the number or frequency of treatments will be made, with your approval, after discussion with the prescribing physician.
Depending on the severity of your depression, past history of relapses, response to TMS, and ability to tolerate TMS treatments,
your psychiatrist might recommend periodic maintenance treatments beyond this acute series.
Periodically during the acute and maintenance treatment series you will complete a form called the Personal Health Questionnaire-9 (PHQ-9).
This scale is useful in monitoring the progress in the response of your depression to TMS.
The PHQ-9 might also be required by your insurance company for initial and continued approval of coverage for TMS treatments.
TMS treatments do not involve any anesthesia or sedation and you will remain awake and alert during the treatment.
You may be evaluated by a healthcare provider during this treatment course.
Is the treatment effective?
Three published large randomized controlled trials (RCT) support TMS as an effective treatment for MDD
in patients who have not benefitted from traditional antidepressant medications.
An RCT is considered the best standard for evaluating the safety and effectiveness of medical treatments.
Multiple other studies have also supported the use of TMS for the treatment of MDD.
If you have questions regarding these studies and statistics regarding effectiveness reported in these studies,
please speak with your psychiatrist before signing this informed consent document.
TMS and Bipolar Depression
TMS has not been established as safe and effective by the FDA for the treatment of Bipolar Depression.
Research studies have indicated that Bipolar Depression might be effectively treated by TMS,
although there is risk for such treatments to cause a manic or hypomanic episode.
Use of TMS for treating Bipolar Depression is considered “off-label,” which means that your doctor might conclude
that TMS is an appropriate treatment for you as an individual even with the recognition that it is not FDA-approved.
However, we are unaware of any insurance plan that covers TMS for the treatment of Bipolar Depression.
Are there potential contraindications or risks?
The long-term effects of exposure to magnetic fields are not known.
TMS is not effective for all patients with depression. Any symptoms or behaviors suggesting a worsening depression
or signs of suicidal thoughts or behaviors should be reported immediately to your psychiatrist.
We recommend a family member or caregiver monitor your symptoms to help you spot any signs of worsening depression or suicidal behavior.
Symptoms which you need to report include, but are not limited to, increasing depression, increasing irritable or anxious moods,
increasing difficulty sleeping or excessive sleeping, loss of appetite and weight loss, increasing fatigue,
increasing lack of interests and motivation, feelings of hopelessness and helplessness,
and increasing thoughts of death, including suicidal thoughts.
TMS cannot be given to patients who have certain medical conditions or implanted devices.
If you have one of these conditions and undergo a TMS treatment it could result in serious injury or death.
You must tell your psychiatrist if you have a history of any of the following health conditions:
- History of Seizure or Stroke
- Severe Heart Disease
- Migraines
- Epilepsy
- Electrolyte imbalance
- Pregnancy
You must tell your psychiatrist if you have any of the following items in or on your body:
- Aneurysm clip or stent or suture
- Defibrillator or pacemaker
- Insulin pump
- Deep brain, vagus nerve, or bone growth stimulators
- Cochlear implants
- Bullet fragments
- Facial tattoos or permanent makeup which contains any metals
- Other devices which might contain metal that are implanted in, or around, your head, neck, or chest
Even non-metal objects can be affected by the magnetic field. If you have a removable device or object that may be affected
by the magnetic field, you must remove the device from the patient area before treatment to prevent possible injury to you or staff
or damage to the device.
Examples of items that need to be removed include, but are not limited to: earrings, hearing aids, eyeglasses, jewelry,
hair barrettes, cell phones, MP3 players, wearable monitors, etc.
There is a risk of having a seizure while undergoing TMS. This occurs in about 1 in every 30,000 treatment sessions,
or 1 in 1,000 patients.
Some patients with a personal history or family history of seizure or epilepsy, a history of stroke, head injury or trauma,
presence of other neurological disease (cerebrovascular accident, cerebral aneurysm, dementia, increased intracranial pressure,
or movement disorder), neuroleptic medications, or other drugs known to lower the seizure threshold may be at increased risk of seizure.
Your psychiatrist will review your medical history, including current medications, and this will help determine if you are at an increased risk for seizures.
Alcohol withdrawal has been associated with seizure occurring during TMS. Therefore, it is important that you discuss your alcohol use history
with your psychiatrist before agreeing to treatment and follow the psychiatrist’s instructions regarding alcohol usage.
Due to the loud sound associated with TMS, earplugs or similar hearing protection devices with a rating of 30dB or higher of noise reduction
must be used during treatment. Your hearing will be assessed before we begin treatments, and again once they are completed.
Your insurance may be charged for this.
The most common adverse events reported are application site pain or discomfort and headache.
If you experience these, we may be able to modify the location or intensity of the treatment,
or you can use over-the-counter analgesics for relief.
I understand that there are other treatment options that are considered safe and efficacious
(including, but not limited to, medications, psychotherapy, Vagus Nerve Stimulator therapy, and ECT).
These options have been discussed with my psychiatrist.
I further understand that no guarantee of any results has been made.
I understand that if the psychiatrist or other treating staff determine during the course of treatment
that I require emergency treatment, I hereby authorize and request that such treatment be performed.
I understand that I can change my mind any time, and choose a different option.
I voluntarily choose to receive TMS Therapy and authorize the psychiatrists and associated staff of PAKC and APSKC
to perform such treatments.