Title: Comorbidities and Percutaneous Coronary Intervention in Elderly Patients with Acute Coronary Syndrome
Abstract: Aim. To assess comorbidities in elderly patients with acute coronary syndrome (ACS) and to analyze patient subgroups with different treatment strategies in the Regional Vascular Center (RVC). Material and methods . The prospective study included 205 patients with confirmed ACS 75 years and older, the mean age was 81±4.9 years, and 68% were women. ST segment elevation myocardial infarction (STEMI) was diagnosed in 46 (22.4 %) patients, non-ST segment elevation myocardial infarction (NSTEMI) was diagnosed in 159 (77,6 %) patients. The Charlson Comorbidity Index (CCI) was calculated in every patient. Early outcomes were defined as those assessed during hospital stay. Late outcomes were assessed at 6 months after the discharge using phone calls and/or clinic visits. All patients provided written informed consent. Results. Percutaneous coronary intervention (PCI) was performed in 42% of patients. In patients with STEMI and NSTEMI PCI was performed in 73% and 32%, respectively. Mean CCI score was 7.9 points: 7.6 points in men and 8.04 in women. Patients with STEMI had higher CCI score than NSTEMI patients (p<0.01): 8.1 points and 7.1 points, respectively. Patients who underwent PCI had lower CCI score (7.2 points) than patients in non-PCI group (8.2 points; p<0.05). Patients with STEMI in PCI and non-PCI groups had significant difference in CCI score (p<0.05): 7.4 and 8.4 points, respectively. Mean CCI score in patients who died in hospital was 8.5 while discharged patients had 7.6 points (p<0.01). In 6 months 13 patients (6.3%) died, their mean age was 84.9 years, mean CCI was 9 points, PCI was performed in 3 (23%) patients. Conclusions. Elderly patients with ACS had high comorbidity level assessed by CCI score. Higher CCI score was associated with PCI non-performance in elderly patients. Elderly patients with STEMI had higher CCI score than patients with NSTEMI which was significantly associated with PCI non-performance. Patients who died in hospital or in 6 months after the ACS onset had higher CCI score than other elderly patients with ACS.