RESUMO
AIM: A significant proportion of single-chamber ventricular pacemakers are implanted in octogenarian and nonagenarian patients. We aimed to assess whether the current pacing guideline is adhered for these populations. METHODS: We retrospectively identified patients ≥80 years of age, who received their first pacemaker from July 2010 to June 2013. RESULTS: A total of 356 patients were identified. Mean age was 86.1 years and 82.6 years for single and dual-chamber pacemakers respectively (p<0.05). Total procedure-related complications occurred in 9.5% and were comparable between both groups (p=0.08). At the time of implantation, 185 patients who received single-chamber pacemaker were in sinus rhythm (52%). They were older (86.2±4.3 vs 82.6±2.9, p<0.05), more likely to have ischaemic and valvular heart disease (68 vs 27, p= 0.02 and 22 vs 13, p=0.01, respectively), and cognitive impairment (34 vs 0, p= 0.001). They were also more likely to be discharged to a residential care facility (17 vs 1, p<0.01). CONCLUSION: The utility of dual-chamber pacemaker in this age group remains below expectation and did not comply with current cardiac pacing guidelines. The presence of older age, multiple co-morbidities, cognitive impairment and residential care on discharge likely influenced the type of device implanted.
