Abstract
Patients with implantable cardioverter defibrillators (ICDs) are at risk for postimplant anxiety. Computerized treatments for anxiety are well supported and desirable because of accessibility, anonymity, and cost-effectiveness. However, there currently exists no computerized psychosocial treatment for ICD populations. Our objective was to evaluate whether a pilot program (patient-assisted computerized education for recipients of ICDs [PACER of ICDs]) of a computerized intervention for ICD patients would improve ICD-related knowledge and psychological outcomes versus usual care. Outcomes were also compared with those from a related study that used the same intervention but in an in-person format. Patients (N = 30) with an ICD were randomized to PACER or usual care. Mean time from implantation was 10.71 months (SD, 21.81 months). Outcomes included ICD-related knowledge, trait anxiety, defibrillation-related anxiety, patient acceptance of the ICD, and quality of life. Patients were assessed at baseline and at 1 month follow-up. Knowledge score over time did not differ by treatment group, although both groups improved their scores. Among treatment patients, increased knowledge accounted for a significant amount of variance in device acceptance (R2 change = 0.30, P =.02), irrespective of age, education, ejection fraction, and time from implantation. There was no relationship between knowledge and device acceptance among control patients. Compared with previous recipients, new device recipients (< 3 months) were more likely to demonstrate an increase in knowledge (P =.01), greater defibrillation anxiety (P =.02), and worse patient acceptance (P =.04). Patient-assisted computerized education for recipients of ICDs resulted in comparable improvements in trait anxiety, quality of life, and device acceptance as the in-person treatment. The potential utility of PACER to enhance device acceptance lends support for further testing among larger samples.
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