Advanced Dementia and Feeding Tubes: Do Physician Factors Contribute to State Variation?

Is parenteral hydration beneficial in terminally ill cancer patients?

INTRODUCTION

It is common for terminally ill patients to have a reduced fluid intake, which often results in a need for more medical support. However, it is not clear if this measure has a real clinical impact.

METHODS

To answer this question we used Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others. We extracted data from the systematic reviews, reanalyzed data from primary studies and generated a summary of findings table using the GRADE approach.

RESULTS AND CONCLUSIONS

We identified four systematic reviews including 51 studies overall, from which three were randomized trials. We concluded the administration of parenteral hydration might make little or no difference in terms of survival and quality of life in terminally ill cancer patients, and that it is not clear whether it has any other benefit because the certainty of the evidence is very low.

Feeding tube placement in patients with advanced dementia: the beliefs and practice patterns of speech-language pathologists

PURPOSE

To describe the beliefs and practices of speech-language pathologists (SLPs) about the use of percutaneous endoscopic gastrostomy (PEG) among patients with advanced dementia and dysphagia.

METHOD

A survey was mailed to a geographically stratified random sample of 1,050 medical SLPs.

RESULTS

The response rate was 57%, and 326 surveys met inclusion criteria. Fifty-six percent of SLPs recommended PEG for a patient with advanced dementia and dysphagia. Contrary to the evidence, many respondents believed that PEG improves nutritional status and increases survival. Relatively few SLPs believed that PEG improved patients' functional status or quality of life. Patient factors (e.g., age or prognosis) were more often identified as influences on recommendations for PEG than were extrinsic factors (e.g., cost). Nearly 40% believed that PEG was the standard of care, while 15% believed it should be. Very few SLPs (11%) would want a PEG themselves. Perceived standard of care was significantly related to both geographic region and population density (p < .05), but self-reported practices were not.

CONCLUSIONS

Discrepancies between SLPs' beliefs, the literature, and self-reported practices were observed. The findings suggest the need to connect the evidence base to clinical practice and to include SLPs in local and national discussions about end-of-life care protocols.

Artificial nutrition and hydration at the end of life: Ethics and evidence

The case of Terri Schiavo resulted in substantial media attention about the use of artificial nutrition and hydration (ANH) especially by percutaneous endoscopic gastrostomy (PEG). In this article, I review ethical and legal principles governing decisions to choose or forgo ANH at the end of life, including issues of autonomy and decision-making capacity, similarities and differences between ANH and other medical treatments, the role of proxies when patients lack decision-making capacity, and the equivalence of withholding and withdrawing treatment. Evidence for palliative or life-sustaining benefits for ANH are reviewed in three disease processes: amyotrophic lateral sclerosis (ALS), cancer, and dementias, including Alzheimer's disease. Although more recent studies suggest a possible palliative role for ANH in ALS and terminal cancer, feeding tubes do not appear to prolong survival or increase comfort in advanced dementia of the Alzheimer's type.