Percutaneous coronary intervention in the elderly: changes in case-mix and periprocedural outcomes in 31,758 patients
Cathy Johnman1, Keith G Oldroyd, Danny F Mackay
1Public Health, University of Glasgow, United Kingdom.
Insights
Elderly patients undergoing percutaneous coronary intervention (PCI) face higher complication risks. However, despite an increase in elderly PCI procedures, complication rates have remained stable over time.
Area of Science:
- Cardiology
- Geriatric Medicine
- Interventional Cardiology
Background:
- The elderly population is growing, with a high prevalence of coronary heart disease.
- Percutaneous coronary intervention (PCI) is a primary revascularization method for older adults.
- Investigating age-related risks and temporal trends in PCI complications is crucial.
Purpose of the Study:
- To assess if periprocedural complication risk is higher in elderly patients (age ≥75) undergoing PCI.
- To determine if this risk has changed over time.
- To analyze trends in PCI utilization among the elderly.
Main Methods:
- Retrospective cohort study using the Scottish Coronary Revascularization Register (2000-2007).
- Inclusion of 31,758 patients undergoing non-emergency PCI.
- Comparison of complication rates between elderly and younger patients, and analysis of trends over the study period.
Main Results:
- PCI procedures in elderly patients increased significantly from 8.7% to 13.9% between 2000 and 2007.
- Elderly patients presented with more complex conditions: multivessel disease, comorbidities, and prior cardiac events.
- The 30-day major adverse cardiovascular event rate was higher in the elderly (4.5%) compared to younger patients (2.7%).
Conclusions:
- Elderly patients undergoing PCI have a higher risk of periprocedural complications.
- Despite an increasing proportion of elderly patients receiving PCI, the risk of complications has not significantly changed over time.
- This suggests that current PCI practices are managing the increased complexity in elderly patients effectively.
Background:
The elderly account for an increasing proportion of the population and have a high prevalence of coronary heart disease. Percutaneous coronary intervention (PCI) is the most common method of revascularization in the elderly. We examined whether the risk of periprocedural complications after PCI was higher among elderly (age > or =75 years) patients and whether it has changed over time.
Methods And Results:
The Scottish Coronary Revascularization Register was used to undertake a retrospective cohort study on all 31 758 patients undergoing nonemergency PCI in Scotland between April 2000 and March 2007, inclusive. There was an increase in the number and percentage of PCIs undertaken in elderly patients, from 196 (8.7%) in 2000 to 752 (13.9%) in 2007. Compared with younger patients, the elderly were more likely to have multivessel disease, multiple comorbidity, and a history of myocardial infarction or coronary artery bypass grafting (chi(2) tests, all P<0.001). The elderly had a higher risk of major adverse cardiovascular events within 30 days of PCI (4.5% versus 2.7%, chi(2) test P<0.001). Over the 7 years, there was a significant increase in the proportion of elderly patients who had multiple comorbidity (chi(2) test for trend, P<0.001). Despite this, the underlying risk of complications did not change significantly over time either among the elderly (chi(2) test for trend, P=0.142) or overall (chi(2) test for trend, P=0.083).
Conclusions:
Elderly patients have a higher risk of periprocedural complications and account for an increasing proportion of PCIs. Despite this, the risk of complications after PCI has not increased over time.
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