Factors influencing no-reflow phenomenon in patients with ST-segment myocardial infarction treated with primary percutaneous coronary intervention

Background/Aim. It is not know which factors influence no-reflow phenomenon after successful primary percutaneous intervention (pPCI) in patients with myocardial infarction with ST elevation (STEMI). The aim of this study was to estimate predictive value of some admission characteristics of patients...

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Main Authors: Đenić Nemanja, Džudović Boris, Romanović Radoslav, Ratković Nenad, Jović Zoran, Đukić Boško, Spasić Marijan, Stojković Siniša, Obradović Slobodan
Format: Article
Language:English
Published: Ministry of Defence of the Republic of Serbia, University of Defence, Belgrade 2018-01-01
Series:Vojnosanitetski Pregled
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Online Access:http://www.doiserbia.nb.rs/img/doi/0042-8450/2018/0042-84501700030D.pdf
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author Đenić Nemanja
Džudović Boris
Romanović Radoslav
Ratković Nenad
Jović Zoran
Đukić Boško
Spasić Marijan
Stojković Siniša
Obradović Slobodan
author_facet Đenić Nemanja
Džudović Boris
Romanović Radoslav
Ratković Nenad
Jović Zoran
Đukić Boško
Spasić Marijan
Stojković Siniša
Obradović Slobodan
author_sort Đenić Nemanja
collection DOAJ
description Background/Aim. It is not know which factors influence no-reflow phenomenon after successful primary percutaneous intervention (pPCI) in patients with myocardial infarction with ST elevation (STEMI). The aim of this study was to estimate predictive value of some admission characteristics of patients with STEMI, who underwent pPCI, for the development of no-reflow phenomenon. Worse clinical outcome in patients with no-reflow points to importance of selection and aggressive treatment in a group at high risk. Methods. This was retrospective and partly prospective study which included 491 consecutive patients with STEMI, admitted to a single centre, during the period from 2000 to September 2015, who underwent pPCI. Descriptive characteristics of the patients, presence of classical risk factors for cardiovascular disease, total ischemic time and clinical features at admission were all estimated as predictors for the development of no-reflow phenomenon. No-reflow phenomenon is defined as the presence of thrombolysis in myocardial infarction (TIMI) < 3 coronary flow at the end of the pPCI procedure, or ST-segment resolution by less than 50% in the first hours after the procedure. The significance of the predictive value of some parameters was evaluated by univariate and multivariate regression analysis. In univariate analysis, we used the χ2 test and Mann Whitney and Student's t-tests. Results. No-reflow phenomenon was detected in 84 (17.1%) patients (criteria used: TIMI < 3 coronary flow) and in 144 (29.3%) patients (criteria used: STsement resolution < 50%). Patients older than 75 years [odds ratio (OR) = 2.53; 95% confidence interval (CI) 1.48– 4.33; p = 0.001] and those who had Killip class at admission higher than 1 had increased risk to achieve TIMI-3 flow after pPCI. Killip class higher than 1 (OR 1.59; 95% CI 1.23– 2.04; p < 0.001), left anterior descendent artery (LAD) as infarct related artery (IRA) and total ischemic time higher than 4 hour were associated with increased risk to failure of rapid ST segment resolution after pPCI. Conclusion. Older age and Killip class were main predictors of TIMI < 3 flow, and Killip class, LAD as IRA and longer total ischemic time were predictors for the failure of rapid ST segment resolution after pPCI.
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spelling doaj-art-0e8653b2e1384d5a97ac16cd073dcf6b2025-08-20T03:54:24ZengMinistry of Defence of the Republic of Serbia, University of Defence, BelgradeVojnosanitetski Pregled0042-84502406-07202018-01-0175101009101310.2298/VSP160405030D0042-84501700030DFactors influencing no-reflow phenomenon in patients with ST-segment myocardial infarction treated with primary percutaneous coronary interventionĐenić Nemanja0Džudović Boris1Romanović Radoslav2Ratković Nenad3Jović Zoran4Đukić Boško5Spasić Marijan6Stojković Siniša7Obradović Slobodan8nemanemanemanemanemanemanemanemanemaBackground/Aim. It is not know which factors influence no-reflow phenomenon after successful primary percutaneous intervention (pPCI) in patients with myocardial infarction with ST elevation (STEMI). The aim of this study was to estimate predictive value of some admission characteristics of patients with STEMI, who underwent pPCI, for the development of no-reflow phenomenon. Worse clinical outcome in patients with no-reflow points to importance of selection and aggressive treatment in a group at high risk. Methods. This was retrospective and partly prospective study which included 491 consecutive patients with STEMI, admitted to a single centre, during the period from 2000 to September 2015, who underwent pPCI. Descriptive characteristics of the patients, presence of classical risk factors for cardiovascular disease, total ischemic time and clinical features at admission were all estimated as predictors for the development of no-reflow phenomenon. No-reflow phenomenon is defined as the presence of thrombolysis in myocardial infarction (TIMI) < 3 coronary flow at the end of the pPCI procedure, or ST-segment resolution by less than 50% in the first hours after the procedure. The significance of the predictive value of some parameters was evaluated by univariate and multivariate regression analysis. In univariate analysis, we used the χ2 test and Mann Whitney and Student's t-tests. Results. No-reflow phenomenon was detected in 84 (17.1%) patients (criteria used: TIMI < 3 coronary flow) and in 144 (29.3%) patients (criteria used: STsement resolution < 50%). Patients older than 75 years [odds ratio (OR) = 2.53; 95% confidence interval (CI) 1.48– 4.33; p = 0.001] and those who had Killip class at admission higher than 1 had increased risk to achieve TIMI-3 flow after pPCI. Killip class higher than 1 (OR 1.59; 95% CI 1.23– 2.04; p < 0.001), left anterior descendent artery (LAD) as infarct related artery (IRA) and total ischemic time higher than 4 hour were associated with increased risk to failure of rapid ST segment resolution after pPCI. Conclusion. Older age and Killip class were main predictors of TIMI < 3 flow, and Killip class, LAD as IRA and longer total ischemic time were predictors for the failure of rapid ST segment resolution after pPCI.http://www.doiserbia.nb.rs/img/doi/0042-8450/2018/0042-84501700030D.pdfrisk factorspercutaneous coronary intervention
spellingShingle Đenić Nemanja
Džudović Boris
Romanović Radoslav
Ratković Nenad
Jović Zoran
Đukić Boško
Spasić Marijan
Stojković Siniša
Obradović Slobodan
Factors influencing no-reflow phenomenon in patients with ST-segment myocardial infarction treated with primary percutaneous coronary intervention
Vojnosanitetski Pregled
risk factors
percutaneous coronary intervention
title Factors influencing no-reflow phenomenon in patients with ST-segment myocardial infarction treated with primary percutaneous coronary intervention
title_full Factors influencing no-reflow phenomenon in patients with ST-segment myocardial infarction treated with primary percutaneous coronary intervention
title_fullStr Factors influencing no-reflow phenomenon in patients with ST-segment myocardial infarction treated with primary percutaneous coronary intervention
title_full_unstemmed Factors influencing no-reflow phenomenon in patients with ST-segment myocardial infarction treated with primary percutaneous coronary intervention
title_short Factors influencing no-reflow phenomenon in patients with ST-segment myocardial infarction treated with primary percutaneous coronary intervention
title_sort factors influencing no reflow phenomenon in patients with st segment myocardial infarction treated with primary percutaneous coronary intervention
topic risk factors
percutaneous coronary intervention
url http://www.doiserbia.nb.rs/img/doi/0042-8450/2018/0042-84501700030D.pdf
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