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Abstract:

Aim: was to evaluate results of endovascular treatment of patients with acute coronary syndrome (ACS) without ST-segment elevation, with multivessel coronary disease.

Materials and methods: 346 patients were enrolled in study and initially randomized into 3 groups. 1st group included 100 patients with complete myocardial revascularization which had been performed during initial PCI. 2nd group included 124 patients with complete myocardial revascularization, performed during initial hospitalization: 3rd group - 122 patients with complete revascularization, performed at different times after initial hospitalization. Inclusion criteria: ACS patients without ST-segment elevation; multivessel coronary disease (risk SYNTAX score = 23-32); high and medium risk for the GRACE scale; absence of previous myocardial revascularization.

Results: long-term results of treatment were evaluated in 192 patients. After 12 months, patients in 3rd group was significantly more likely to have greater cardiovascular complications and re-interventions on the target vessel. It was found that complete myocardial revascularization, performed after 30 days from the date of diagnosed acute coronary syndrome, has a negative impact on the prognosis of the disease (r = 0,58, p <0,05). Risk factors adversely affecting the prognosis of ACS patients without ST-segment elevation and presence of multivessel disease include: subtotal stenosis in non-symptomatic arteries; circulation failure Killip class III; myocardial infarction in past; high risk on GRACE scale; lesion length in non-symptomatic arteries more than 20 mm diabetes mellitus; degree of risk on a SYNTAX scale-score> 25; overweight/obesity; high cholesterol 6.5 mmol/l.

Conclusions: when performing PCI in patients with ACS without ST-segment elevation with multivessel coronary disease, performing a complete myocardial revascularization 30 days after the date of diagnosed acute coronary syndrome, has a negative impact on the prognosis of the disease.

 

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