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Background: Informed consent is a basic standard of care for all patients undergoing medical procedures, but recall of information has been shown to be poor. We sought to compare verbal, written and animated audiovisual information delivery, during consent for coronary angiography, by measuring improvement in recall. Method: A sample population of 99 cardiac patients at Flinders Medical Centre was randomised (1:1:1) to receive one of three information delivery methods. The information content was standardised by a risk proforma, which explained the procedure and defined 12 specific risks. Recall, satisfaction and anxiety were assessed by a questionnaire administered at three different time points: post-consent, post-procedure and at 30 days. Effect of delivery method on satisfaction and anxiety was rated on a self-reported scale from 1-5, with 5 representing very satisfied or very anxious. Groups were compared by non-parametric testing and a p-value of <0.05 was considered statistically significant. Results: Patients were a median age of 64 (i.q.r. 56, 72) years. Information delivery method had no effect on recall of risks at any time-point (p=0.2, 0.7, 0.5, respectively) and the average recall score across the population was 3-4 out of 12. There was no significant effect on median satisfaction scores: verbal; 5 (i.q.r.4, 5) versus written/audiovisual; 4 (i.q.r.4, 5) (p=ns), or on median anxiety scores: verbal; 3 (i.q.r.2, 4) versus written/audiovisual; 3 (i.q.r.2, 4) (p=ns). Conclusion: Despite careful design of an innovative audiovisual delivery technique aimed at optimising comprehension and aiding memory, recall of information was poor and informational aids showed no improvement. Modes of information delivery are not the key to patient assimilation of complex medical information. [ABSTRACT FROM AUTHOR]

Atrial fibrillation (AF) has been established as an independent predictor of long-term mortality after acute myocardial infarction. However, this is less well defined across the whole spectrum of acute coronary syndromes (ACSs). The Acute Coronary Syndrome Prospective Audit is a prospective multicenter registry with 12-month outcome data for 3,393 patients (755 with ST-segment elevation myocardial infarction, 1942 with high-risk non–ST-segment elevation ACS [NSTE-ACS], and 696 with intermediate-risk NSTE-ACS). A total of 149 patients (4.4%) had new-onset AF and 387 (11.4%) had previous AF. New-onset AF was more, and previous AF was less frequent in those with ST-segment elevation myocardial infarction than in those with high-risk NSTE-ACS or intermediate-risk NSTE-ACS (p <0.001). Compared to patients without arrhythmia, patients with new-onset AF and previous AF were significantly older and had more high-risk features at presentation (p <0.004). Patients with new-onset AF more often had left main coronary artery disease, resulting in a greater rate of surgical revascularization (p <0.001). Only new-onset AF resulted in adverse in-hospital outcomes (p <0.001). Only patients with previous AF had greater long-term mortality (hazard ratio 1.42, p <0.05). New-onset AF was only associated with a worse long-term composite outcome (hazard ratio 1.66, p = 0.004). However, the odds ratio for the composite outcome was greatest for patients with new-onset AF with intermediate-risk NSTE-ACS (odds ratio 3.9, p = 0.02) than for those with high-risk NSTE-ACS (odds ratio 2.0, p = 0.01) or ST-segment elevation myocardial infarction (odds ratio 1.4, p = 0.4). In conclusion, new-onset AF was associated with worse short-term outcomes and previous AF was associated with greater mortality even at long-term follow-up. The prognostic burden of new-onset AF differed with the type of ACS presentation. [Copyright &y& Elsevier]