Secondary Prevention Risk Interventions via Telemedicine and Tailored Patient Education (SPRITE): A randomized trial to improve post myocardial infarction management.
OBJECTIVE: We evaluated the impact of a low intensity web-based and intensive nurse-administered intervention to reduce systolic blood pressure (SBP) among patients with prior MI. METHODS: Secondary Prevention Risk Interventions via Telemedicine and Tailored Patient Education (SPRITE) was a three-arm trial. Patients were randomized to 1) post-MI education-only; 2) nurse-administered telephone program; or 3) web-based interactive tool. The study was conducted 2009-2013. RESULTS: Participants (n = 415) had a mean age of 61 years (standard deviation [SD], 11). Relative to the education-only group, the 12-month differential improvement in SBP was - 3.97 and - 3.27 mmHg for nurse-administered telephone and web-based groups, respectively. Neither were statistically significant. Post hoc exploratory subgroup analyses found participants who received a higher dose (>12 encounters) in the nurse-administered telephone intervention (n = 60; 46%) had an 8.8 mmHg (95% CI, 0.69, 16.89; p = 0.03) differential SBP improvement versus low dose (<11 encounters; n = 71; 54%). For the web-based intervention, those who had higher dose (n = 73; 53%; >1 web encounter) experienced a 2.3 mmHg (95% CI, -10.74, 6.14; p = 0.59) differential SBP improvement versus low dose (n = 65; 47%). CONCLUSIONS: The main effects were not statistically significant. PRACTICAL IMPLICATIONS: Completing the full dose of the intervention may be essential to experience the intervention effect. CLINICAL TRIAL REGISTRATION: The unique identifier is NCT00901277 (http://www. CLINICALTRIALS: gov/ct2/show/NCT00901277?term=NCT00901277&rank=1).
Zullig, LL; Peterson, ED; Shah, BR; Grambow, SC; Oddone, EZ; McCant, F; Lindquist, JH; Bosworth, HB
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