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KMID : 0856920110140010028
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Journal of Hospice and Palliative Care
2011 Volume.14 No. 1 p.28 ~ p.33
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Predictability of Impending Events for Death within 48 Hours in Terminal Cancer Patients
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Hwang In-Cheol
Choi Chung-Hyun
Kim Kyoung-Kon
Lee Kyoung-Shik
Suh Heuy-Sun
Shim Jae-Yong
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Abstract
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Purpose: Recognition of impending death is crucial not only for efficient communication with the caregiver of
the patient, but also determination of the time to refer to a separate room. Current studies simply list the events
‘that have already occurred’ around 48 hours before the death. This study is to analyze the predictability of each
event by comparing the time length from ‘change’ to death.
Methods: Subjects included 160 patients who passed away in a palliative care unit in Incheon. The analysis was limited to 80 patients who had medical records for the last week of their lives. We determined 9 symptoms and 8 signs, and established the standard of ‘significant change’ of each event before death.
Results: The most common symptom was increased sleeping (53.8%) and the most common sign was decreased blood pressure (BP) (87.5%). The mean time to death within 48 hours was 46.8% in the case of resting dyspnea, 13.6% in the ease of low oxygen saturation, and 36.9% in the case of decreased BP. The symptom(s) which had the highest positive predictive value (PV) for death within 48 hours was shown to be resting dyspnea (83%), whereas the combination of resting dyspnea and confusion/delirium (65%) had the highest negative PV. As for the most common signs before death within 48 hours, the positive PVs were more than 95%, and the negative PV was the highest when decreased BP and low oxygen saturation were combined. The difference in survival patterns between symptoms and signs was significant.
Conclusion: The most reliable symptoms to predict the impending death are resting dyspnea and confusion/delirium, and decline of oxygen saturation and BP are the reliable signs to predict the event.
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KEYWORD
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Death, Prognosis, Terminally ill, Neoplasms
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