How effective are video animations for reducing anxiety and informing patients with CAD? A systematic review

Anxiety is common in people with coronary artery disease (CAD), particularly in association with invasive procedures and investigations. Effective provision of information for patients is crucial, but traditional methods may fail to adequately inform or engage some patients. We aimed to synthesise clinical trials evaluating the effectiveness of video animations provided to patients with CAD. We performed a systematic review of Medline, CINAHL Plus, Cochrane Library and PsycINFO from January 2000 to January 2025. Conducted in accordance with PRISMA guidelines and presented with a narrative synthesis. Five randomised-controlled trials met the inclusion criteria. Four included video animations, and one a 'whiteboard animation'. Each evaluated the animations as an addition to standard care. Patient knowledge was improved in all four trials that assessed it, and anxiety was reduced in two out of four trials that assessed it. There was some evidence of beneficial effects of animations on satisfaction and health behaviours. The quality of evidence was not strong, with two trials having a high risk of bias. In conclusion, video animations show potential for their effects on knowledge and anxiety in patients with CAD, but the evidence-base is small.