Goals of Care in Severe Protein-Calorie Malnutrition with Poor Prognosis
In this very elderly patient with severe protein-calorie malnutrition, hyponatremia from tea-and-toast diet, and no malignancy but poor short-term prognosis, comfort-focused care with DNR/DNI status is appropriate, and artificial nutrition or hydration should not be initiated as it provides no benefit and may cause harm in patients with expected survival of weeks. 1
Framework for Decision-Making
The critical determinant is expected survival timeframe, which guides all subsequent interventions:
When Expected Survival is Weeks (Terminal Phase)
Comfort measures are the priority. 1
- Artificial nutrition and hydration are unlikely to provide any benefit and should not be initiated 1
- Treatment should focus exclusively on symptom management and patient comfort 1
- Even patients with severe malnutrition entering the terminal phase (expected survival of weeks) should receive only comfort-oriented interventions, not aggressive nutritional support 1
- The dying phase is characterized by terminal hypometabolism where normal amounts of energy and substrates may be excessive and induce metabolic distress 1
When Expected Survival is Several Months or Longer
Aggressive nutritional intervention is warranted. 1
- Patients with expected survival of several months should receive adequate nutritional counseling and support including oral, enteral, or parenteral nutrition 1
- Performance status should not influence decision-making for or against nutritional support in patients with months of expected survival 1
- Target 35-40 kcal/kg body weight daily with protein intake of 1.2-1.5 g/kg 1, 2
Specific Considerations for This Patient
The Tea-and-Toast Hyponatremia Context
- Chronic hyponatremia from inadequate solute intake (tea-and-toast syndrome) reflects severe dietary restriction and reduced water-excretory capacity 3
- This dietary pattern indicates profound nutritional compromise with caloric intake likely ≤50% of requirements 4
- The hyponatremia itself may contribute to acute confusional states; a short trial of limited hydration can rule out reversible dehydration as a precipitating cause 1
Prognostic Indicators Suggesting Terminal Phase
Key markers that suggest weeks rather than months of survival include: 1, 5
- Severe functional decline with bedbound status or inability to perform activities of daily living 4, 6
- Progressive weight loss >10% within 6 months or >20% beyond 6 months 2, 4, 5
- Obvious significant muscle wasting in temporal areas, shoulders, ribs, scapulae, and extremities 4
- Persistent oral intake ≤50% of energy requirements despite interventions 4, 5
- Advanced age with multiple comorbidities and declining trajectory 1
DNR/DNI and Comfort Measures
DNR/DNI status is appropriate when:
- Expected survival is in the range of weeks 1
- The patient has rapidly progressive functional decline despite supportive care 1
- Nutritional support would not alter the underlying disease trajectory 1
What Comfort Measures Should Include
- Management of nutrition-impact symptoms (nausea, pain, constipation) without aggressive interventions 1
- Oral care and small amounts of food/fluid for comfort only, if desired by the patient 1
- Psychosocial and existential support for patient and family 1
- Clear communication about the natural dying process and what to expect 1
Critical Pitfalls to Avoid
Do not initiate artificial nutrition or hydration in the terminal phase. 1
- Enteral and parenteral nutrition are medical treatments requiring physician prescription and should only be used when there is realistic chance of improvement or maintenance of quality of life 1
- In patients where death is imminent (within the next four weeks), patient comfort is the highest priority 1
- Artificial nutrition in dying patients provides no functional or comfort benefit and may induce metabolic distress 1
Address family distress through communication, not through futile interventions. 1
- Psychosocial distress of family members demanding artificial nutrition should be addressed by communication and educational interventions from multi-professional teams 1
- Respect for religious, ethnic, and cultural background must be granted while explaining medical futility 1
Do not use pharmacological sedation or physical restraints to enable artificial nutrition. 1
- Sedation and physical restraints lead to muscle mass loss and cognitive deterioration, counteracting any potential nutritional goals 1
- The goal of maintaining or gaining muscle mass cannot be achieved through immobilization 1
Documentation and Communication
Essential elements to document: 4, 5
- Precise weight loss percentage and timeframe (>10% in 6 months defines severe PCM) 4, 5
- Functional status using validated scales (WHO or Karnofsky) showing progressive deterioration 4, 5
- Current oral intake quantified as percentage of estimated requirements 4
- Physical examination findings of visible muscle wasting and fat loss 4
- Expected survival timeframe based on clinical trajectory 1
- Goals of care discussion with patient/family and rationale for comfort-focused approach 1