What is Electroconvulsive Therapy (ECT)?
Electric currents are passed through the brain to deliberately trigger a brief seizure. That seizure changes brain chemistry in a way that can rapidly reverse symptoms of certain mental illnesses, and it often works after other treatments have failed. ECT has the longest track record of any brain stimulation therapy and the FDA has cleared it for severe depressive episodes in people 13 and older, per the NIMH. The exact mechanism is not fully understood. The working theory is that the controlled seizure drives neuroplastic change and shifts neurotransmitter levels, resetting abnormal brain activity.
Indications
ECT is used when a severe disorder is treatment-resistant or when intervention cannot wait:
- Severe major depressive disorder.
- Bipolar disorder, especially during manic or depressive episodes.
- Catatonia.
- Schizophrenia, particularly with severe symptoms or catatonia.
- Suicidal ideation or behavior posing an imminent risk.
Benefits
- Rapid symptom relief, faster than most other treatments.
- Rapid reduction in suicidal thoughts and behavior.
- Works in treatment-resistant cases where other options have failed.
- Meaningful improvement in quality of life when treatment succeeds.
Risks and Side Effects
- Memory loss, usually temporary, especially for events around the time of treatment.
- Confusion and disorientation immediately after treatment.
- Headache, muscle soreness, and nausea.
- Anesthesia risk. General anesthesia is used during ECT.
- Rare cardiovascular complications and fractures from muscle contraction during the seizure.
Emotional and Educational Support for Client and Family
Get the client talking about their feelings, including the myths they have heard about ECT. Teach the client and family exactly what to expect.
Nursing Care Before ECT
Confirm the client and family got a full explanation, including the right to withdraw consent at any time. Withhold food and fluids for 6 to 8 hours before treatment. Remove dentures, glasses, contact lenses, hearing aids, and hairpins. Have the client void before treatment.
Give preoperative medications as ordered. Glycopyrrolate (Robinul) or atropine prevents aspiration and minimizes the bradyarrhythmias that follow electrical stimulation.
Nursing Care During ECT
Place a blood pressure cuff on one arm. As the IV line goes in and the EEG and ECG electrodes are attached, give the client a brief explanation. Put the pulse oximeter on a finger. Monitor blood pressure throughout.
Medications given:
- Short-acting anesthetic (Brevital).
- Muscle relaxant (succinylcholine).
- 100% oxygen by mask via positive pressure.
Confirm the bite block is in place to stop the client from biting the tongue. The electrical stimulus is delivered, and the seizure should last 30 to 60 seconds.
Nursing Care After ECT
Move the client to a properly staffed recovery room. Once awake, talk to them and check vital signs. Give frequent orientation and reassurance to settle the confusion. Check the gag reflex before giving any fluids, medications, or breakfast.
Frequently Asked Questions
When is ECT used? When severe mental illness has not responded to medication or psychotherapy, or when waiting is dangerous, such as active suicidality or catatonia with refusal to eat or drink. The APA notes it is most established for severe major depression.
How does ECT work? A controlled electric current triggers a brief, generalized seizure that shifts brain chemistry and activity. The exact mechanism is not fully understood, but it can reverse symptoms faster than most other treatments per the NIMH.
Is the patient awake during ECT? No. ECT is done under brief general anesthesia with a muscle relaxant, so the patient is asleep, feels no pain, and does not convulse visibly. The seizure itself lasts about 30 to 60 seconds.
What is the nurse's role before ECT? Confirm informed consent (including the right to withdraw it), keep the client NPO for 6 to 8 hours, remove dentures, glasses, contacts, hearing aids, and hairpins, have the client void, and give ordered premedication such as glycopyrrolate or atropine.
What are the main side effects? Temporary memory loss (especially around the time of treatment), short-term confusion and disorientation, headache, muscle soreness, and nausea. Serious cardiovascular complications are rare.
What does post-ECT care involve? Recovery in a properly staffed area, frequent reorientation and reassurance for the confused patient, vital sign monitoring, and checking the gag reflex before giving any fluids, food, or oral medication.