ECT - Electroconvulsive Therapy for Bipolar Disorder
Commonly called shock treatment,
electroconvulsive
therapy (ECT) has received bad press since it was introduced in the 1930s.
Over the years it has been refined, however, and may now even be safer than
lithium. It may be particularly beneficial for the following patients:
- Patients who need immediate stabilization of their condition and who
cannot wait for medications to be become effective.
- Most patients with mania. (It may be particularly important for
elderly patients with severe mania.)
- Patients who suffer suicidal thoughts and guilt during the
depressive phase.
-
Patients who simply prefer ECT.
- Pregnant patients.
- Patients who cannot tolerate drug treatments.
- Patients with certain types of heart problems.
- Young patients.
HealthyPlace.com Radio
Rob McGruder's ECT Odyssey
- the story of Rob McGruder, a 45-year-old man with
bi-polar disorder. His frequent depression has seriously
affected his life. He has attempted suicide three times,
married three times, and found himself homeless. He says
Electroconvulsive Therapy, or ECT, saved his life.
(listen
with realplayer. audio table of contents
here). |
In a review of studies, about 80% of ECT-treated patients experienced
improvement, and for some, it is the only treatment that works.
The Procedure. Hospitalization is not necessary for the treatment.
In general,
ECT proceeds as follows:
- A muscle relaxant and short-acting anesthetic are administered.
- A small amount of electric current is sent to the brain, causing a
generalized seizure that lasts for about 40 seconds.
- The response to ECT is usually very fast, and the patient often
needs less medication afterward.
Side Effects.
Side effects of ECT may include temporary confusion,
memory lapses, headache, nausea, muscle soreness, and heart disturbances.
Administration of the drug naloxone immediately before ECT may help reduce
its effects on concentration and some (but not all) forms of memory
impairment. Concerns about permanent memory loss appear to be unfounded. One
study that used brain scans before and after ECT found no evidence of cell
damage. In another small study of teenagers who had undergone ECT for severe
mood disorders, only one of 10 reported memory impairment three and one half
years after the treatment.
The Biologic Effects ECT on Bipolar Disorder. The precise
mechanism by which ECT benefits bipolar disorder patients is not clear.
- Some research is focusing on changes that ECT exerts on the brains
physiology. It may increase the permeability of the blood-brain barrier,
produce an anti-seizure effect (similar to the effects of anti-seizure
drugs used as mood stabilizers), and reduce blood flow in part of the
brain correlated with improved mood.
- Another theory suggests that various hormonal changes that occur
during ECT produce the primary benefits, with particular interest in
changes in thyroid-related hormones.
- Yet another theory posits that the benefits of ECT stem from its
effects on dopamine levels. This neurotransmitter probably plays an
important role in bipolar disorder as well as other conditions for which
ECT is sometimes recommended, including delusional depression.
- ECT appears to stimulate growth of neurons in the hippocampus (the
area in the brain responsible for memory).
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