Abnormal sexual behaviors in frontotemporal dementia

Abstract

M r. S, age 77, is admitted to a longterm care facility due to progressive cognitive impairment and sexually inappropriate behavior. He has a history of sexual assault of medical staff. His medical history includes significant frontotemporal dementia (FTD) with behavioral disturbances, abnormal sexual behaviors, subclinical hypothyroidism, schizoid personality disorder, Parkinson disease, posttraumatic stress disorder, and hyperammonemia. Upon admission, Mr. S’s vital signs are within normal limits except for an elevated thyroid-stimulating hormone (4.54 mIU/L; reference range 0.40 to 4.50 mIU/L). Prior cognitive testing results and updated ammonia levels are unavailable. Mr. S’s current medications include acetaminophen 650 mg every 4 hours as needed for pain, calcium carbonate/vitamin D twice daily for bone health, carbidopa/levodopa 25/100 mg twice daily for Parkinson disease, melatonin 3 mg/d at bedtime for insomnia, quetiapine 25 mg twice daily for psychosis with disturbance of behavior and 12.5 mg every 4 hours as needed for agitation, and trazodone 50 mg/d at bedtime for insomnia. Before Mr. S was admitted, previous therapy with selective serotonin reuptake inhibitors (SSRIs) had been tapered and discontinued. Mr. S had also started antipsychotic therapy at another facility due to worsening behaviors.