1. Postoperative Delirium and Postoperative Cognitive Dysfunction
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Xu G, Daniel Habtemariam, Nee J, Sarah Rastegar, Jamey Guess, Benjamin K. I. Helfand, Ochsner L, Gruen T, Douglas K. Ayres, Richard N. Jones, Bradford C. Dickerson, Anna Gersten R, Yun Gou R, Tammy T. Hshieh, Mouhsin M. Shafi, Asha Albuquerque, Simon T. Dillon, Selwyn O. Rogers, Sylvie E. Bertrand, Steven E. Arnold, Stephanie A. Studenski, Anthony D. Whittemore, Jane S. Saczynski, Sarah L. Dowal, Tamara G. Fong, Alex Brown, David C. Alsop, Margaret A. Pisani, Towia A. Libermann, Kettell J, George A. Kuchel, Christopher Rockett, de Rooij S, Cyrus M. Kosar, Jason Strauss, Jacqueline Gallagher, Eva M. Schmitt, Ross M, Mark P. Callery, Enghorn D, Charles R.G. Guttmann, Marc L. Schermerhorn, Vella M, James C. Gee, John P. Wright, Michele Cavallari, Parisi K, Sarinnapha M. Vasunilashorn, Douglas Tommet, Margaret O'Connor, Tatiana F Abrantes, Alvaro Pascual-Leone, Michael Belkin, Sharon K. Inouye, Kamen Vlassakov, Lisa Kunze, Eran D. Metzger, Eyal Y. Kimchi, Bryan M, Hodara A, Gary L. Gottlieb, Wong B, Weiying Dai, Yaakov Stern, Janet E. McElhaney, Madeline L D'Aquila, Daniel Z. Press, Inloes J, Thomas G. Travison, Kerry Palihnich, Daiello La, Zara Cooper, Michael D. Fox, Alden L. Gross, Tasker K, Gou Y, Annie M. Racine, Amy E. Callahan, Isaza I, Edward R. Marcantonio, Kuczmarska A, John Orav, Reisa A. Sperling, Margaret R. Puelle, Emese Nemeth, Long Ngo, Ann Kolanowski, Frank B. Pomposelli, and Zhongcong Xie
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business.industry ,Follow up studies ,Retrospective cohort study ,medicine.disease ,Comorbidity ,03 medical and health sciences ,0302 clinical medicine ,Anesthesiology and Pain Medicine ,030202 anesthesiology ,Anesthesia ,medicine ,Delirium ,Postoperative delirium ,medicine.symptom ,Cognitive impairment ,business ,Postoperative cognitive dysfunction ,030217 neurology & neurosurgery ,Cohort study - Abstract
Editor’s PerspectiveWhat We Already Know about This TopicWhat This Article Tells Us That Is NewBackgroundPostoperative delirium and postoperative cognitive dysfunction share risk factors and may co-occur, but their relationship is not well established. The primary goals of this study were to describe the prevalence of postoperative cognitive dysfunction and to investigate its association with in-hospital delirium. The authors hypothesized that delirium would be a significant risk factor for postoperative cognitive dysfunction during follow-up.MethodsThis study used data from an observational study of cognitive outcomes after major noncardiac surgery, the Successful Aging after Elective Surgery study. Postoperative delirium was evaluated each hospital day with confusion assessment method–based interviews supplemented by chart reviews. Postoperative cognitive dysfunction was determined using methods adapted from the International Study of Postoperative Cognitive Dysfunction. Associations between delirium and postoperative cognitive dysfunction were examined at 1, 2, and 6 months.ResultsOne hundred thirty-four of 560 participants (24%) developed delirium during hospitalization. Slightly fewer than half (47%, 256 of 548) met the International Study of Postoperative Cognitive Dysfunction-defined threshold for postoperative cognitive dysfunction at 1 month, but this proportion decreased at 2 months (23%, 123 of 536) and 6 months (16%, 85 of 528). At each follow-up, the level of agreement between delirium and postoperative cognitive dysfunction was poor (kappa less than .08) and correlations were small (r less than .16). The relative risk of postoperative cognitive dysfunction was significantly elevated for patients with a history of postoperative delirium at 1 month (relative risk = 1.34; 95% CI, 1.07–1.67), but not 2 months (relative risk = 1.08; 95% CI, 0.72–1.64), or 6 months (relative risk = 1.21; 95% CI, 0.71–2.09).ConclusionsDelirium significantly increased the risk of postoperative cognitive dysfunction in the first postoperative month; this relationship did not hold in longer-term follow-up. At each evaluation, postoperative cognitive dysfunction was more common among patients without delirium. Postoperative delirium and postoperative cognitive dysfunction may be distinct manifestations of perioperative neurocognitive deficits.
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- 2019
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