The End-of-Life Experience for a Cohort of Patients with Pulmonary Arterial Hypertension
Bibliographic record
Abstract
INTRODUCTION: Pulmonary arterial hypertension (PAH) is a progressive and ultimately fatal disease of the pulmonary circulation. There has never been an investigation of the end-of-life symptoms in patients with PAH. In this investigation, we surveyed surrogates of recent decedents with PAH. We evaluate their responses to better understand the end-of-life experience of patients with PAH. METHODS: The survey instrument includes demographic information and the Edmonton Symptoms Assessment Scale. Accredo Therapeutics mailed the survey to surrogates of recent decedents with PAH, and responses were anonymously returned to investigators at Virginia Commonwealth University and used in our descriptive analysis. RESULTS: Of 100 surveys distributed over 24 months (February 2009 to February 2011), we obtained 36 responses (response rate 36%). We found that most patient deaths (90%) were related to PAH, that the majority of patients died in the hospital (67%), with the majority of in-hospital deaths (83%) occurring in intensive care. Palliative care was infrequently involved in patients' care, and many surrogates were unaware of palliative care and hospice services available to the decedents. Patients died with a high symptom burden, especially dyspnea. CONCLUSION: In this cohort, patients with PAH usually died from their disease, often in the hospital setting with a high symptom burden. Further study will be needed to confirm the findings from this study and to better understand the forces leading to the trends uncovered in this investigation.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".