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Factors to inform clinicians about the end of life in severe chronic obstructive pulmonary disease.

Abstract：

CONTEXT:Palliative services have historically been offered to terminal patients with cancer, but much less so in other chronic illnesses such as chronic obstructive pulmonary disease (COPD) because of difficulties in predicting the trajectory to death. OBJECTIVES:The goal of this study was to determine if the change over time of the key parameters (trajectory) in patients with severe COPD can independently predict short-term mortality. METHODS:We analyzed data from 1218 patients with severe COPD. Multivariate models for trajectory change were used to forecast mortality at 12 months. RESULTS:Changes in several variables by defined cutpoints increase significantly and independently the odds of dying in 12 months. The earliest and strongest predictors were the decrease in gait speed by 0.14 m/s or six-minute walk by 50 m (odds ratio [OR] 4.40, P<0.0001). Alternatively, if six-minute walk or gait speed were not used, change toward perceiving a very sedentary state using a single question (OR 3.56, P=0.0007) and decrease in maximal inspiratory pressure greater than 11 cmH2O (OR 2.19, P=0.0217) were predictive, followed by change toward feeling upset or downhearted (OR 2.44, P=0.0250), decrease in room air resting partial pressure of oxygen greater than 5 mmHg (OR 2.46, P=0.0156), and increase in room air resting partial pressure of carbon dioxide greater than 3 mmHg (OR 2.8, P=0.0039). Change over time models were more discriminative (higher c-statistics) than change from baseline models. CONCLUSION:The changes in defined variables and patient-reported outcomes by defined cutpoints were independently associated with increased 12-month mortality in patients with severe COPD. These results may inform clinicians when to initiate end-of-life communications and palliative care.

journal_name

J Pain Symptom Manage

journal_title

Journal of pain and symptom management

authors

Benzo R,Siemion W,Novotny P,Sternberg A,Kaplan RM,Ries A,Wise R,Martinez F,Utz J,Sciurba F,National Emphysema Treatment Trial Research Group.

doi

10.1016/j.jpainsymman.2012.10.283

subject

Has Abstract

pub_date

2013-10-01 00:00:00

pages

491-499.e4

issue

eissn

0885-3924

issn

1873-6513

pii

S0885-3924(13)00122-X

journal_volume

pub_type

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Factors to inform clinicians about the end of life in severe chronic obstructive pulmonary disease.