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The Journal of Tehran University Heart Center، جلد ۱۳، شماره ۳، صفحات ۱۰۸-۱۱۴
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عنوان انگلیسی Correlates of the “No-Reflow” or “Slow-Flow” Phenomenon in Patients Undergoing Primary Percutaneous Coronary Intervention
چکیده انگلیسی مقاله Background: Despite recent advances in interventional equipment and techniques, the angiographic no-reflow phenomenon occurs in a considerable number of patients undergoing primary percutaneous coronary intervention (PCI). We investigated the clinical, angiographic, preprocedural, and procedural characteristics associated with the no-reflow phenomenon among patients undergoing primary PCI. Methods: Between March 2008 and April 2013, 530 patients (78.5% male, mean age=58.11±12.39 y) with ST-segment-elevation myocardial-infarction who underwent primary PCI were categorized in 2 groups according to their postprocedural thrombolysis-in-myocardial infarction (TIMI) flow grades:  those with a maximum score of 2 (the no-reflow or slow-flow group) and the ones with a score of 3 (the reflow group). A multivariable logistic regression model was used to find the multiple correlates of the no-reflow phenomenon after PCI. Results: There were 166 (31.3%) patients in the no-reflow group and 364 (68.7%) in the reflow group. The no-reflow patients were older and had significantly longer target lesion lengths, higher SYNergy between percutaneous coronary intervention with TAXus and cardiac surgery (SYNTAX) scores, higher infarct-related artery SYNTAX scores, more thrombus burden, and a higher frequency of initial TIMI flow grades of 2 or lower. Our multivariable logistic regression analysis demonstrated that older age, higher numbers of Q waves, not using statin, longer target lesion lengths, higher thrombus grades, and higher infarct-related artery SYNTAX scores remained the independent correlates of increased no-reflow rates after primary PCI (area under the ROC curve=0.784,  95% CI: 0.742–0.826; P< 0.001). Conclusion: Clinical, angiographic, and procedural features of patients undergoing primary PCI may be correlated with the occurrence of the no-reflow phenomenon. The thrombus grade and the infarct-related artery SYNTAX score could be among these factors.
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نویسندگان مقاله | Mohammad Alidoosti
Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.


| Reza Lotfi
Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.


| Masoumeh Lotfi-Tokaldany
Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.


| Ebrahim Nematipour
Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.


| Mojtaba Salarifar
Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.


| Hamidreza Poorhosseini
Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.


| Arash Jalali
Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.
نشانی اینترنتی http://jthc.tums.ac.ir/index.php/jthc/article/view/743
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