Effects of parenteral nutrition and hydration on survival in advanced cancer patients with malignant bowel obstruction: secondary analysis of a multicenter prospective cohort study

Cancer-Related Malnutrition and the Role of Parenteral Nutrition in Cancer; A Narrative Review

The growing incidence rate of cancer and its associated morbidity and mortality prompts the need to identify factors that could improve the quality of life (QoL) and survival of a patient with cancer. Cancer-associated malnutrition is a common complication that could start at the early stages of cancer and could further develop into advanced cachexia. Response to treatment, length of hospital stay, progression of infection, and other complications of cancer including chemotherapy adverse events could all be influenced by the progression of malnutrition. Nutritional interventions may vary from oral to enteral and parenteral therapy. Parenteral nutrition (PN) therapy may benefit patients at certain stages of cancer in whom contraindications or inefficacy of other modalities of nutritional support are present. This method may seem invasive, costly, and risky but at the same time may improve certain patients' QoL and chance of survival. In trained settings with proper facilities, this method of nutritional support can benefit patients; However, the indication for starting PN must be carefully supervised considering that other nutritional support methods may be equally efficient and at the same time easier to access and apply.

Difficulties in Addressing Artificial Hydration and Nutrition Therapy for Terminal Cancer Patients: What to do if Patients/Families' Wishes Differ From the Medically Appropriate Treatment Plans?

PURPOSE

Artificial hydration and nutrition therapy (AHNT) initiated by patients/families sometimes differs from medically appropriate treatment plans. We aimed to identify the causes of these differences and examine the ensuing responses and outcomes.

METHODS

Of 133 adult cancer patients receiving end-of-life care in the last 2 years, these discrepancies occurred in 41 patients. We retrospectively examined the following issues: (1) The reason why these discrepancies occurred. (2) Based on the causes identified in (1), the following actions were taken: 1) If the consent to change to medically appropriate AHNT was obtained, physical findings using Japan Palliative Oncology Study (JPOS) group and Edmonton Symptom Assessment System (ESAS) were compared before and 1 week after the intervention. 2) If consent was not obtained, time-limited trial (TLT) was conducted, and these results were compared. (3) The communication between patients/families and medical professionals was compared using Support Team Assessment Schedule.

RESULTS

(1) Causes: a) the lack of understanding of the disease condition in 26 cases and b) faulty expectation of AHNT in 15 cases. (2) In 30 cases of 1) (20 of a) and 10 of b)) and 11 of 2) in which TLT was performed, JPOS and ESAS improved significantly. (3) The communication above was improved significantly in 1) and 2) (P = .0027 and .0039, respectively).

CONCLUSION

Providing medically appropriate AHNT with the consent of patients/families is expected to not only alleviate distressing symptoms but also improve the communication between patients/families and medical professionals, as well as improve the quality of palliative care.