Tipping point: When patients stop eating and drinking in the last phase of their life

BACKGROUND: Eating and drinking are essential also in social life. Nutrition and hydration (N&H) at end of life are often a source of discussion and distress. Stopping eating and drinking is a defining element of the dying phase, however, this time point is not well defined. The aim of this retrospective analysis was to investigate whether such a time point can be detected, whether there are specific characteristics associated.

METHODS: The time point when patients stopped oral intake was analyzed in relation to time until death on a specialist palliative care ward (sPCW) of a tertiary comprehensive cancer center. This "tipping point" (TP) was defined as the time point when total food intake fell below 25% of normal solid intake (TP-S) and "tipping point fluid" (TP-F) when fluid intake fell below 500 ml/day (oral/intravenous/subcutaneous). Demographic and medical data, the N&H-module in the electronic patient management system and the daily multiprofessional treatment notes at TP (±3 days) were analyzed in all patients cared on the sPCW between 1/15 and 9/17.

RESULTS: In these 32 months, of 1194 treated patients 683 (57%) died on the ward. A TP-S was identified in 291 patients prior to dying on the ward (43%) with a median time of six days from to TP-S death. In 75% of these patients, TP-S occurred within two weeks prior to death (range: 0-5 weeks). A TP-F was detected in 202 patients (30%) with a median TP-F-time of two days prior to death. In 75% of these patients, the TP-F was within three days prior to death (range: 0-14 days). The cancer entities in patients in whom TPs could be detected were heterogeneous. No specific disease-related or sociodemographic characteristics for patients with TPs could be determined. In the daily treatment notes, oral and swallowing problems, taste alterations and discussions about stopping artificial nutrition were mentioned.

CONCLUSION: In less than half of dying patients a definitive TP could be detected. In these patients, TP-S occurred within two weeks and TP-F within few days before death. No specific characteristics of patients with TPs could be observed. This indicates the individual nature of the trajectory at end of life.