All three cases of long-lasting mutism, including ours,
did not respond to antipsychotics alone and were proved
to be treatment-resistant cases. May be combining ECT
with antipsychotics prove effective and effi cacious in
mitigating the paranoid delusion, and indirectly patient
starts communicating verbally.[9] On this basis, we may
hypothesize that the presence of non-catatonic mutism
may be a positive indicator for response to ECT in such
cases.