M. Berkhoff et al., DEVELOPMENTAL BACKGROUND AND OUTCOME IN PATIENTS WITH NONEPILEPTIC VERSUS EPILEPTIC SEIZURES - A CONTROLLED-STUDY, Epilepsia, 39(5), 1998, pp. 463-469
Purpose: This study was designed to evaluate the relevance of developm
ent emotional stress factors, which are considered to influence emotio
nal functioning, as contributing factors in the development psychogeni
c symptoms. Methods: Ten patients with nonepileptic seizures (non-ESs)
(frequently referred to as psychogenic seizures), in whom diagnosis h
ad been confirmed by a placebo-infusion test (PT), and 10 control pati
ents with complex partial seizures (ESs) were evaluated with regard to
development background by using structured in-depth interviews perfor
med by a single interviewer blinded to the diagnosis. In addition, out
come assessment in the non-ES group after PT was done. Results: There
were no significant differences between groups in developmental psycho
social stress or in any single development stress factor. Six months a
fter PT, the outcome was favorable in patients with non-ES: six were s
eizure free, and two had a considerable reduction in frequency of seiz
ures. Conclusions: Our research indicates the following: (a) a high in
cidence of development stress factors and functional disturbances may
be found in patients with non-ESs and ESs; (b) assessment of developme
nt emotional stress and functional disturbances as a basis for validat
ing the diagnosis of non-ES should be treated with caution; (c) use of
PT followed by supportive information about the nonepileptic origin o
f the attacks may have a positive therapeutic effect or help to introd
uce psychotherapeutic treatment.