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New score can tell doctors how long cancer patients have left to live

Date:
August 26, 2011
Source:
BMJ-British Medical Journal
Summary:
A new scoring system can more reliably predict whether patients with advanced cancer are likely to survive for "days", "weeks" or "months", a new study finds.

A new scoring system can more reliably predict whether patients with advanced cancer are likely to survive for "days," "weeks" or "months" finds a study published online in the British Medical Journal.

Patients with advanced cancer and their carers often wish to know how long they have left to live. This information is also important for clinicians to help them plan appropriate care. Clinician predictions of survival are the mainstay of current practice, but are unreliable, over-optimistic and subjective.

So a team of researchers, led by Dr Paddy Stone at St George's, University of London, set out to develop a scoring system for use in patients with advanced cancer in different care settings that was as good, or better, than clinicians' best predictions.

The study involved 1,018 patients with advanced incurable cancer, no longer receiving treatment, and recently referred to palliative care services across the UK.

Using a combination of clinical and laboratory variables known to predict survival, the team created two prognostic scores (PiPS-A and PiPS-B) to predict whether patients were likely to survive for "days" (0-13 days), "weeks" (14-55 days) or "months" (more than 55 days) compared with actual survival and clinicians' predictions.

Factors that could have affected the results, such as age, gender, ethnicity, diagnosis, and extent of disease, were taken into account.

Both scores were at least as accurate as a clinician's estimate. PiPS-B (which required a blood test) was significantly better than an individual doctor's or nurse's prediction, but neither scale was significantly more accurate than a multi-professional estimate of survival.

This is the first study to benchmark a prognostic scoring system against current best practice, say the authors. However, further validation work is needed before the scales can be recommended for use in routine clinical practice, they conclude.

In an accompanying editorial, Paul Glare from the Memorial Sloan-Kettering Cancer Center in New York believes that prognosis "needs to be restored as a core clinical skill, to optimise the patient's treatment and planning."

He says that prognostic tools can help, but should not be applied blindly, and he points out that "communicating the prediction to the patient is as important as forecasting it."


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Journal References:

  1. B. Gwilliam, V. Keeley, C. Todd, M. Gittins, C. Roberts, L. Kelly, S. Barclay, P. C. Stone. Development of Prognosis in Palliative care Study (PiPS) predictor models to improve prognostication in advanced cancer: prospective cohort study. BMJ, 2011; 343 (aug25 1): d4920 DOI: 10.1136/bmj.d4920
  2. P. Glare. Predicting and communicating prognosis in palliative care. BMJ, 2011; 343 (aug25 1): d5171 DOI: 10.1136/bmj.d5171

Cite This Page:

BMJ-British Medical Journal. "New score can tell doctors how long cancer patients have left to live." ScienceDaily. ScienceDaily, 26 August 2011. <www.sciencedaily.com/releases/2011/08/110825193101.htm>.
BMJ-British Medical Journal. (2011, August 26). New score can tell doctors how long cancer patients have left to live. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2011/08/110825193101.htm
BMJ-British Medical Journal. "New score can tell doctors how long cancer patients have left to live." ScienceDaily. www.sciencedaily.com/releases/2011/08/110825193101.htm (accessed April 17, 2014).

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