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Schizophrenia Case Study: Residual Thought Disorder versus Emerging Dementia

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Physician's Field Guide to Neuropsychology

Abstract

This chapter describes the challenging differential diagnosis of cognitive impairment in a patient with a severe psychiatric disorder. An older adult with a long history of a schizophrenia-spectrum disorder presented with exacerbation of psychotic symptoms, aggression, and cognitive concerns. The patient and his psychiatrist wondered about the source of the cognitive deficits and how this would affect his treatment options and prognosis. In addition to a long-standing serious mental illness, this patient had a number of possible medical conditions associated with cognitive decline and was also taking medications that affect cognition. The patient was referred for neuropsychological assessment. The neuropsychologist worked collaboratively with the psychiatrist and patient to discern whether the cognitive changes were related to schizophrenia, incipient dementia, or medication effects. Input from neuropsychology aided in treatment planning.

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References

  1. American Psychiatric Association. Diagnostic and statistical manual of mental disorders. 5th ed. Arlington, VA: American Psychiatric Association; 2013.

    Book  Google Scholar 

  2. Heinrichs RW, Zakzanis KK. Neurocognitive deficit in schizophrenia: a quantitative review of the evidence. Neuropsychology. 1998;12(3):426–45.

    Article  CAS  Google Scholar 

  3. Mesholam-Gately RI, Giuliano AJ, Goff KP, Faraone SV, Seidman LJ. Neurocognition in first-episode schizophrenia: a meta-analytic review. Neuropsychology. 2009;23(3):315.

    Article  PubMed  Google Scholar 

  4. Owoso A, Carter CS, Gold JM, MacDonald AW, Ragland JD, Silverstein SM, Strauss ME, Barch DM. Cognition in schizophrenia and schizo-affective disorder: impairments that are more similar than different. Psychol Med. 2013;43(12):2535–45.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  5. Bowie CR, Harvey PD. Cognitive deficits and functional outcome in schizophrenia. Neuropsychiatr Dis Treat. 2006;2(4):531.

    Article  PubMed  PubMed Central  Google Scholar 

  6. Green MF. What are the functional consequences of neurocognitive deficits in schizophrenia? Am J Psychiatry. 1996;153:321–30.

    Article  CAS  PubMed  Google Scholar 

  7. Keefe RSE, Harvey PD. Cognitive impairment in schizophrenia. In: Novel antischizophrenia treatments. Berlin, Heidelberg: Springer; 2012. p. 11–37.

    Chapter  Google Scholar 

  8. Copeland JR, Dewey ME, Scott A, Gilmore C, Larkin BA, Cleave N, et al. Schizophrenia and delusional disorder in older age: community prevalence, incidence, comorbidity, and outcome. Schizophr Bull. 1998;24(1):153.

    Article  CAS  PubMed  Google Scholar 

  9. Hjorthøj C, Stürup AE, McGrath J, Nordentoft M. SA57. Life expectancy and years of potential life lost in schizophrenia: a systematic review and meta-analysis. Schizophr Bull. 2017;43(Suppl 1):S133–4.

    Article  PubMed Central  Google Scholar 

  10. Östling S, Skoog I. Psychotic symptoms and paranoid ideation in a nondemented population–based sample of the very old. Arch Gen Psychiatry. 2002;59(1):53–9.

    Article  PubMed  Google Scholar 

  11. McGlashan TH. A selective review of recent North American long-term followup studies of schizophrenia. Schizophr Bull. 1988;14(4):515.

    Article  CAS  PubMed  Google Scholar 

  12. Thara R. Twenty-year course of schizophrenia: the Madras longitudinal study. Can J Psychiatry. 2004;49:564–9.

    Article  CAS  PubMed  Google Scholar 

  13. Depp CA, Loughran C, Palmer BW. Neuropsychological considerations in older adults with schizophrenia. In: Marcopulos BA, Kurtz M, editors. Clinical neuropsychological foundations of schizophrenia. New York: Psychology Press; 2012. p. 141–58.

    Google Scholar 

  14. Irani F, Kalkstein S, Moberg EA, Moberg PJ. Neuropsychological performance in older patients with schizophrenia: a meta-analysis of cross-sectional and longitudinal studies. Schizophr Bull. 2011;37(6):1318–26.

    Article  PubMed  Google Scholar 

  15. Ribe AR, Laursen TM, Charles M, Katon W, Fenger-Grøn M, Davydow D, Chwastiak L, Cerimele JM, Vestergaard M. Long-term risk of dementia in persons with schizophrenia: a Danish population-based cohort study. JAMA Psychiatry. 2015;72(11):1095–101.

    Article  PubMed  Google Scholar 

  16. Köhler S, Allardyce J, Verhey FR, McKeith IG, Matthews F, Brayne C, Savva GM. Cognitive decline and dementia risk in older adults with psychotic symptoms: a prospective cohort study. Am J Geriatr Psychiatry. 2013;21(2):119–28.

    Article  PubMed  Google Scholar 

  17. Sarter M, Bruno JP. Cognitive functions of cortical acetylcholine: toward a unifying hypothesis. Brain Res Rev. 1997;23(1):28–46.

    Article  CAS  PubMed  Google Scholar 

  18. Vallés AS, Borroni MV, Barrantes FJ. Targeting brain α7 nicotinic acetylcholine receptors in Alzheimer’s disease: rationale and current status. CNS Drugs. 2014;28(11):975–87.

    Article  PubMed  Google Scholar 

  19. Fox C, Richardson K, Maidment ID, Savva GM, Matthews FE, Smithard D, et al. Anticholinergic medication use and cognitive impairment in the older population: the medical research council cognitive function and ageing study. J Am Geriatr Soc. 2011;59(8):1477–83.

    Article  PubMed  Google Scholar 

  20. Strauss ME, Reynolds KS, Jayaram G, Tune LE. Effects of anticholinergic medication on memory in schizophrenia. Schizophr Res. 1990;3(2):127–9.

    Article  CAS  PubMed  Google Scholar 

  21. Tracy JI, Monaco C, Giovannetti T, Abraham G, Josiassen RC. Anticholinergicity and cognitive processing in chronic schizophrenia. Biol Psychol. 2001;56(1):1–22.

    Article  CAS  PubMed  Google Scholar 

  22. Minzenberg MJ, Poole JH, Benton C, Vinogradov S. Association of anticholinergic load with impairment of complex attention and memory in schizophrenia. Am J Psychiatry. 2014;161(1):116–24.

    Article  Google Scholar 

  23. Stone W, Keshavan M. Medical co-morbidity in schizophrenia. In: Marcopulos BA, Kurtz M, editors. Clinical neuropsychological foundations of schizophrenia. New York: Psychology Press; 2012. p. 159–80.

    Google Scholar 

  24. Holt R, Peveler R, Byrne C. Schizophrenia, the metabolic syndrome and diabetes. Diabetic Med. 2004;21(6):515–23.

    Article  CAS  PubMed  Google Scholar 

  25. Newcomer JW. Metabolic syndrome and mental illness. Am J Manag Care. 2007;13(7 Suppl):S170–7.

    PubMed  Google Scholar 

  26. Reaven GM. Banting lecture 1988. Role of insulin resistance in human disease. Diabetes. 1988;37(12):1595–607.

    Article  CAS  PubMed  Google Scholar 

  27. Muller M, van Raamt F, Visseren FL, Kalmijn S, Geerlings MI, Mali WP, et al. Metabolic syndrome and cognition in patients with manifest atherosclerotic disease: the SMART study. Neuroepidemiology. 2010;34(2):83–9.

    Article  PubMed  Google Scholar 

  28. Dickinson D, Gold JM, Dickerson FB, Medoff D, Dixon LB. Evidence of exacerbated cognitive deficits in schizophrenia patients with comorbid diabetes. Psychosomatics. 2008;49(2):123–31.

    Article  PubMed  Google Scholar 

  29. Lezak MD, Howieson DB, Bigler ED, Tranel D. Neuropsychological assessment. New York: Oxford University Press; 2012.

    Google Scholar 

  30. Boone KB. Assessment of feigned cognitive impairment: a neuropsychological perspective. New York, NY: Guilford Press; 2007.

    Google Scholar 

  31. Bush SS, Ruff RM, Tröster AI, Barth JT, Koffler SP, Pliskin NH, et al. Symptom validity assessment: practice issues and medical necessity: NAN Policy & Planning Committee. Arch Clin Neuropsychol. 2005;20(4):419–26.

    Article  PubMed  Google Scholar 

  32. Heilbronner RL, Sweet JJ, Morgan JE, Larrabee GJ, Millis SR. American Academy of Clinical Neuropsychology consensus conference statement on the neuropsychological assessment of effort, response bias, and malingering. Clin Neuropsychol. 2009;23(7):1093–129.

    Article  PubMed  Google Scholar 

  33. Bondi MW, Jak AJ, Delano-Wood L, Jacobson MW, Delis DC, Salmon DP. Neuropsychological contributions to the early identification of Alzheimer’s disease. Neuropsychol Rev. 2008;18(1):73–90.

    Article  PubMed  PubMed Central  Google Scholar 

  34. Karantzoulis S, Galvin JE. Distinguishing Alzheimer’s disease from other major forms of dementia. Expert Rev Neurother. 2011;11(11):1579–91.

    Article  PubMed  PubMed Central  Google Scholar 

  35. Marcopulos BA, Gripshover DL, Broshek DK, McLain CA, McLain RH. Neuropsychological assessment of psychogeriatric patients with limited education. Clin Neuropsychol. 1999;13(2):147–56.

    Article  CAS  PubMed  Google Scholar 

  36. Berk M, Malhi GS, Gray LJ, Dean OM. The promise of N-acetylcysteine in neuropsychiatry. Trends Pharmacol Sci. 2013;34(3):167–77.

    Article  CAS  PubMed  Google Scholar 

  37. Zoccali R, Muscatello M, Bruno A, Cambria R, Mico U, Spina E, et al. The effect of lamotrigine augmentation of clozapine in a sample of treatment-resistant schizophrenic patients: a double-blind, placebo-controlled study. Schizophr Res. 2007;93(1):109–16.

    Article  CAS  PubMed  Google Scholar 

  38. Modabbernia A, Heidari P, Soleimani R, Sobhani A, Roshan ZA, Taslimi S, et al. Melatonin for prevention of metabolic side-effects of olanzapine in patients with first-episode schizophrenia: randomized double-blind placebo-controlled study. J Psychiatr Res. 2014;53:133–40.

    Article  PubMed  Google Scholar 

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Correspondence to Bernice A. Marcopulos .

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Chapter Review Questions

Chapter Review Questions

  1. 1.

    How does thought disorder differ from the cognitive changes seen in early dementia?

  2. 2.

    What is the relative risk of Alzheimer’s disease in persons with schizophrenia?

  3. 3.

    What is the mechanism for cognitive impairment with anticholinergics?

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Marcopulos, B.A., Gardella, R. (2019). Schizophrenia Case Study: Residual Thought Disorder versus Emerging Dementia. In: Sanders, K. (eds) Physician's Field Guide to Neuropsychology. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-8722-1_24

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  • DOI: https://doi.org/10.1007/978-1-4939-8722-1_24

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