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Comorbidity in Schizophrenia: Conceptual Issues and Clinical Management
Hussain Muhammad Abdullah1, Hameed Azeb Shahul1, Michael Y Hwang1
1Department of Psychiatry and Behavioral Health, Behavioral Health Center, Westchester Medical Center, Valhalla, New York (Abdullah, Hwang, Ferrando); Department of Psychiatry, Yale University, New Haven, Connecticut (Azeb Shahul); Department of Psychiatry and Behavioral Health, Health Alliance Hospital, Kingston, New York (Hwang).
Abstract:
Schizophrenia is a complex psychiatric disorder that affects cognitive, perceptual, and emotional functioning. The currently available evidence suggests heterogenous intertwining of biological and psychosocial etio-pathogeneses. Clinical and research interests in the comorbidity issues of schizophrenia were borne out of the real-world clinical challenges that patients often present with multiple coexisting psychopathologies as well as comorbid medical conditions. The recent DSM-5 shift toward a symptom dimensional-based perspective, the NIMH Research Domain Criteria (RDoC) initiative to examine biopsychosocial pathogeneses in mental illness, and the FDA's emphasis on real world-based clinical trial criterion all have promoted a shift in clinical research that has facilitated understanding and treatment of comorbidity in schizophrenia. This emerging conceptual shift as well as pharmacological developments that address the multidimensional pathogeneses in schizophrenia may pave the way for a better understanding and treatment.
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