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Survival Prediction in Terminally Ill Cancer Patients: Laboratory Variables and Prospective Validation of The Palliative Prognostic Index  

Son, Hyo-Rim (Department of Family Medicine, Gwangju Veterans Hospital)
Kim, Dae-Eun (Department of Internal Medicine, Chonnam National University Medical School)
Kang, Hyun-Wook (Department of Internal Medicine, Chonnam National University Medical School)
Kim, Ha-Na (Department of Internal Medicine, Chonnam National University Medical School)
Seo, Il-Kook (Department of Internal Medicine, Chonnam National University Medical School)
Yoon, Ju-Young (Department of Internal Medicine, Chonnam National University Medical School)
Hwang, Jun-Eul (Department of Internal Medicine, Chonnam National University Medical School)
Shim, Hyun-Jeong (Department of Internal Medicine, Chonnam National University Medical School)
Cho, Sang-Hee (Department of Internal Medicine, Chonnam National University Medical School)
Chung, Ik-Joo (Department of Internal Medicine, Chonnam National University Medical School)
Bae, Woo-Kyun (Department of Internal Medicine, Chonnam National University Medical School)
Publication Information
The Korean Journal of Medicine / v.81, no.3, 2011 , pp. 359-365 More about this Journal
Abstract
Background/Aims: The palliative prognostic index (PPI) was designed to predict life expectancy based on clinical symptoms. In this study, a PPI was constructed and used with other biological parameters to predict 3-week survival in patients with advanced cancer. Methods: The study included 222 patients. The PPI was constructed with five variables (performance status, oral intake, edema, dyspnea at rest, and delirium). PPI scores were grouped as follows: 4 (group 1); > 4 and ${\leq}$ 6 (group 2); and > 6 (group 3). At admission, seven biological variables (white blood cell count, lymphocyte, C-reactive protein [CRP], bilirubin, albumin, creatinine, and lactate dehydrogenase) were measured. Results: The overall survival duration was 50 days in group 1, 22 days in group 2, and 14 days in groups 3. Using the PPI, a survival of < 3 weeks in group 3 was predicted with a sensitivity of 76.5% and a specificity of 65.4%. The important factors significantly affecting the 3-week survival rate were a PPI score > 6 and increases in serum bilirubin and CRP levels. Furthermore, the 3-week survival rate in patients with hepatopancreatobiliary cancer was more accurately predicted using a combination of the PPI, CRP, and serum bilirubin levels. Conclusions: Although a PPI has limitations, it can be quickly applied to determine survival duration in patients admitted to hospice and accurately predicts 3-week survival. Furthermore, bilirubin and CRP are useful factors for predicting 3-week survival in patients with gastrointestinal cancer, including hepatopancreatobiliary cancer.
Keywords
Hospice Care; Survival Analysis; Bilirubin;
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Times Cited By KSCI : 1  (Citation Analysis)
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