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KMID : 0607520140220020087
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Korean Journal of Psychosomatic Medicine
2014 Volume.22 No. 2 p.87 ~ p.92
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Clinical Characteristics of Misdiagnosed Delirium
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Oh Eu-Gene
Baek Sue-Hyun
Kim Min-Hyuk
Min Seong-Ho
Park Ki-Chang
Ahn Joung-Sook
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Abstract
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Objectives : Delirium of hospitalized patients is common and it is significantly associated with increased mortality rate. Misdiagnosis rates of delirium are reported in a range of 36.7 to 63% in clinical setting. We aimed to identify the clinical features and symptomatic characteristics associated with misdiagnosis of delirium.
Methods : Subjects were 256 inpatients who were referred for psychiatric consultation and diagnosed with delirium by a psychiatrist at a university hospital between January 1 and June 30, 2012. Clinical data were obtained with retrospective chart review. Patients were divided into misdiagnosed group and correct diagnosed group, after reviewing the reason which were described in the consultation request form.
Results : Sixty nine(27%) subjects of the 256 patients were referred for other reasons(mood, substance, anxiety, dementia etc.) than "delirium/confusion" by clinician(misdiagnosed group). In misdiagnosed group, use of antipsychotics was more common. There were no differences between the two groups in age, gender, and department of referring clinician. Fluctuation score of DRS-R-98 was higher in the correct diagnosed group.
Conclusions : In this study, the risk of misdiagnosis was higher when the patients have taken antipsychotics or less symptom fluctuation. Careful clinical attention is needed for diagnosis for delirium in these patients.
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KEYWORD
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Delirium, Misdiagnosis, Symptom
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