Sarah B Mathews1, Steven E Arnold2, C Neill Epperson3. 1. Department of Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, PA; Penn Center for Women's Behavioral Wellness, University of Pennsylvania, Philadelphia, PA. Electronic address: sarah.mathews@uphs.upenn.edu. 2. Department of Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, PA; Department of Obstetrics and Gynecology, University of Pennsylvania School of Medicine, Philadelphia, PA. 3. Department of Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, PA; Penn Center for Women's Behavioral Wellness, University of Pennsylvania, Philadelphia, PA; Department of Obstetrics and Gynecology, University of Pennsylvania School of Medicine, Philadelphia, PA.
Abstract
BACKGROUND: Evidence for a relationship between hospitalization and incident cognitive decline exists mainly in the literature focusing on critical care hospitalization. Recent studies, however, have also found an association between noncritical care hospitalization and the development of cognitive decline. OBJECTIVE: This article will review the literature pertaining to hospitalization and cognitive decline, including hospitalizations for both critical and noncritical care, and in medical and surgical patients. The article will also explore the various factors that have been implicated in the development of cognitive decline and dementia. METHODS: Review of the literature was completed using PubMed and Medline search programs. RESULTS: Several articles supporting evidence for the association between hospitalization and cognitive decline are available. Evidence for potential mediating factors also does exist. CONCLUSIONS: There is evidence to support an association between hospitalization and development of cognitive decline. Factors that could mediate this association include, but may not be limited to, delirium, medications, stress, and depression. There is a need for further research in this area in order to better understand the underlying pathophysiology involved in the development of cognitive decline and dementia and to determine if preventive measures might be beneficial in decreasing risk for cognitive decline for patients who are hospitalized.
BACKGROUND: Evidence for a relationship between hospitalization and incident cognitive decline exists mainly in the literature focusing on critical care hospitalization. Recent studies, however, have also found an association between noncritical care hospitalization and the development of cognitive decline. OBJECTIVE: This article will review the literature pertaining to hospitalization and cognitive decline, including hospitalizations for both critical and noncritical care, and in medical and surgical patients. The article will also explore the various factors that have been implicated in the development of cognitive decline and dementia. METHODS: Review of the literature was completed using PubMed and Medline search programs. RESULTS: Several articles supporting evidence for the association between hospitalization and cognitive decline are available. Evidence for potential mediating factors also does exist. CONCLUSIONS: There is evidence to support an association between hospitalization and development of cognitive decline. Factors that could mediate this association include, but may not be limited to, delirium, medications, stress, and depression. There is a need for further research in this area in order to better understand the underlying pathophysiology involved in the development of cognitive decline and dementia and to determine if preventive measures might be beneficial in decreasing risk for cognitive decline for patients who are hospitalized.
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