Sudden cardiac death after modified electroconvulsive therapy.

Area of Science:

• Neuroscience
• Cardiology
• Psychiatry

Background:

• Electroconvulsive therapy (ECT) is a medical treatment most often used for patients with severe major depression or other psychiatric illnesses that have not responded to other treatments.
• Modified electroconvulsive therapy (MECT) involves administering ECT under general anesthesia and muscle relaxation.
• Bipolar disorder is a mental health condition that causes extreme mood swings that include emotional highs (mania) and lows (depression).

Observation:

• A 58-year-old male with a 20-year history of bipolar disorder experienced a recurrent episode of non-psychotic mania.
• The patient received an initial session of modified electroconvulsive therapy (MECT).
• The MECT session did not produce a convulsion, and the patient initially regained consciousness and was medically stable.

Findings:

• The patient deteriorated rapidly after transfer to the recovery room and died from cardiac arrest within one hour of the MECT session.
• An autopsy was not possible, but the probable cause of death was surmised to be the interaction between haloperidol (administered 17 hours prior) and nonconvulsive MECT, exacerbating cardiac effects.
• This case suggests a potential link between antipsychotic medication use and adverse cardiac events during MECT.

Implications:

• There is a critical need for thorough cardiac assessment in patients considered for MECT, potentially including cardiac enzyme evaluation in older individuals.
• Clinicians should carefully consider the concurrent use of antipsychotic medications and MECT due to potential synergistic adverse effects.
• This case underscores the importance of vigilant monitoring of patients during the post-MECT recovery period, especially those with concurrent medication regimens.