Challenges and Considerations in Treating Negative and Cognitive Symptoms of Schizophrenia Spectrum Disorders.

Background: The prototypical patient with schizophrenia spectrum disorders (SSDs) is often thought to possess positive symptoms. However, patients with SSDs can present with predominantly negative and cognitive symptoms, which can create diagnostic and treatment challenges. Case Presentation: A 33-year-old female veteran presented to the emergency department with diminished speech output, markedly blunted affect, tangential speech, was not oriented to situation, and appeared to be responding to internal stimuli. Following inpatient admission, the veteran was diagnosed with schizoaffective disorder, which was misdiagnosed as major depressive disorder and borderline personality disorder during her military service. She was initially treated with olanzapine injections and psychotherapy but continued to experience worsening symptoms, resulting in multiple hospitalizations. After starting clozapine, she demonstrated marked improvement and continued with outpatient mental health care. Conclusions: Predominant negative and cognitive symptom presentations of SSDs require unique considerations to accurately identify and provide optimal treatment for the patient. Clozapine is a promising treatment for addressing these symptoms. This case demonstrates how careful multidisciplinary evaluations, review of health records, collateral information from family members, and other diagnostic and treatment considerations in patients with predominant negative and cognitive symptoms of SSDs can refine and enhance the clinical care offered to such patients.