Context
Patients with terminal illnesses often require surrogate decision makers. Prior research has demonstrated high surrogate stress, and that despite standards promoting substituted judgment, most patients do not want their surrogates to make pure substituted judgments for them. It is not known how best to help loved ones fulfill the surrogate role.
Objectives
To test the effectiveness of an intervention to help surrogate decision makers.
Methods
166 patients (41% with ALS and 59% with gastrointestinal cancers) and their surrogates at 2 university medical centers were randomized to an intensive nurse-directed discussion of the end of life Decision Control Preferences of the patient (TAILORED) or a discussion of nutrition (CONTROL); 163 completed baseline interviews and underwent the intervention.
Results
Twelve patients died during follow-up and 137 dyads completed the study. Post-intervention, using all available data, TAILORED patients and surrogates became more likely to endorse mutual surrogate decision making, i.e., a balance of their own wishes and what the surrogate thinks best (Adjusted odds compared with baseline for patients = 1.78, p = .04; Adjusted odds for surrogates = 2.05, p = .03). CONTROL patients became 40% less likely to endorse mutual surrogate decision making (p = 0.08) while CONTROL surrogates did not change significantly from baseline (adjusted odds = 1.44, p = .28). Stress levels decreased for TAILORED surrogates (Impact of Events Scale = 23.1±14.6 baseline, 20.8±15.3 f/u, p= 0.046), but not for CONTROL (p = .85), and post-intervention stress was lower for TAILORED than CONTROL (p = .04). Surrogate confidence was uniformly high at baseline and did not change. Caregiver burden (Zarit) increased from 12.5±6.5 to 14.7±8.1 for TAILORED (p <.01) while not changing for CONTROL, yet satisfaction with involvement in decision making was higher at follow-up for TAILORED than for CONTROL (71% vs. 52%, p = .03).
Conclusion
TAILORED patients and surrogates who completed the study adopted a more mutual decision making style, balancing their own wishes with what the surrogate thinks would be best for them. Surrogates reported less stress and more satisfaction. Confidence was high at baseline and did not change. There was a modest increase in caregiver burden. These findings suggest that interventions like TAILORED might positively impact surrogate decision making.