Delusional disorder. A diagnosis of delusional disorder, somatic type with familial features was considered because Cassandra and her father shared persecutory and paranoid beliefs that her condition was brought on by some hidden, unrecognized medical condition. A delusional disorder with shared or “familial” features develops when a parent has strongly held delusional beliefs that are transferred to the child. Typically, it develops within the context of a close relationship with the parent, is similar in content to the parent’s belief, and is not preceded by psychosis or prodromal to schizophrenia.3
Because Cassandra’s father transferred his delusional system to his daughter, she clung to the belief that her physical symptoms and immobility were caused by medical misdiagnosis and failure to recognize her illness. Cassandra’s father strongly resisted and defended against accepting his role in her medical condition.
Munchausen by proxy. Because Cassandra and her father share a delusional system that prevented her from accepting and following treatment recommendations, it is possible that her father created her condition. Munchausen syndrome by proxy is a condition whereby illness-producing behavior in a child is exaggerated, fabricated, or induced by a parent or guardian.4 Separating Cassandra from her father and initiating antipsychotic treatment for him are critical considerations for her recovery.
How would you treat Cassandra?
a) call Child Protective Services (CPS) to remove Cassandra from her father’s custody
b) hospitalize Cassandra for intensive treatment of conversion disorder
c) start Cassandra on an atypical antipsychotic
d) begin cognitive-behavioral therapy (CBT) and an antidepressant
Treatment approach
Treating a patient with a conversion disorder, somatic type starts with validating that the patient’s and parent’s distress is real to them (Table 2).5 The clinician acknowledges that no physical evidence of physiological dysfunction has been found, which can be reassuring to the patient and family. The clinician then states that the patient’s condition and the physical manifestation of the symptoms are real. A patient’s or parent’s resistance to this reassurance may indicate that they have a large investment in the symptoms and perpetuating the dysfunction.
Taking a mind-body approach—explaining that the child’s condition is created and perpetuated by a mind-body connection and is not under their voluntary control—often is well received by patients and parents. The treating clinician emphasizes that the condition is physically disabling and that careful, appropriate, and intensive treatment is necessary.
A rehabilitation model has power for patients with conversion disorder because it acknowledges the patient’s discomfort and loss of function while shifting the focus away from finding what is wrong. The goal is to actively engage patients in their own care to help them return to normal functioning.6
Cassandra was encouraged to participate in physical therapy, go to school, and take care of herself. Actively participating in her care and recovery meant that Cassandra had to leave the sick role behind, which was impossible for her father, who saw her as passive, helpless, and fragile.
TREATMENT: Pharmacotherapy, CBT
During psychiatric evaluation, it becomes clear that in addition to her physical debility, Cassandra has major depressive disorder, moderate without psychotic features. Her depression contributes to her hopelessness and lack of participation in treatment. After discussion with her family about how her depressive symptoms are preventing her recovery, Cassandra is started on escitalopram, 10 mg/d. CBT helps her manage her depressive symptoms, prevent further somatization, and correct misperceptions about her body function and disabilities.
For conversion disorder patients, physical therapy can be combined with incentives tied to improvements in functioning. Cassandra has overwhelming anxiety while attempting physical therapy, which interferes with her participation in the therapy. Lorazepam, 0.5 mg/d, is prescribed for her intense anxiety and panic attacks, which led her to avoid physical therapy.
Staff at the rehabilitation hospital calls CPS because Cassandra’s father interferes with her care and treatment plan. CPS continues to monitor Cassandra’s progress through outpatient care. An individualized education plan and psychoeducational testing help determine a school placement to meet Cassandra’s educational needs.
CPS directs Cassandra to stay with her mother for alternating weeks. While at her mother’s, Cassandra is more interested in taking care of herself. She helps with getting herself into bed and to the toilet. Upon returning to her father’s home, these gains are lost.
The author’s observations
Psychodynamic and unconscious motivators for conversion disorder operate on a deeper, hidden level. The underlying primary conflict in pseudoseizures—a more common conversion disorder—has been described as an inability to express negative emotions such as anger. Social problems, conflict with parents, learning disorders,7 or sexual abuse8 produce the negative emotions caused by the primary conflict. Cassandra yearned for a closer relationship with her mother, yet she remained enmeshed with poor intrapsychic boundaries with her father. The fact that he assisted his 17-year-old daughter with toileting raised the possibility of sexual abuse. Sexual abuse could have led to her depression and physical decline. Cassandra’s physical debility also may have been her way to foster dependency on her father and protect him from perceived persecution.