Abstract
Background. No-reflow phenomenon during primary percutaneous coronary intervention (PCI) is a significant clinical problem in patients with ST-elevation myocardial infarction (STEMI), and its predictors remain unclear.Aim. To develop a scoring system to predict the risk of no-reflow in patients undergoing PCI for STEMI.Methods. Data were collected from 1280 consecutive patients with STEMI (59.2±11.4 years, 74.2% men, 5.2% no-reflow) who were admitted to the coronary care unit and underwent PCI. Baseline clinical, angiographic and procedural variables were used to develop the risk score in a training dataset (n=888, 70%) which was then validated in a test dataset (n=392, 30%). A credit risk assessment tool was used to construct a precise screening tool for no-reflow.Results. The model comprised age, pain to revascularisation time, neutrophil count, admission plasma glucose level, initial TIMI flow and direct stenting as the only independent predictors of no-reflow. These factors were weighted and used to develop a risk score ranging from 0 to 7. In the training dataset, the optimal threshold score for predicting no-reflow was ≥35, with 69% sensitivity and 81% specificity (area under the curve (AUC) = 0.84, p < 0.001). When these findings were applied to the test dataset, the AUC was 0.75 (p < 0.001), with 70% sensitivity and 80% specificity.Conclusion. The score developed in this study, based on clinical, angiographic and procedural features, can be used with acceptable accuracy to predict no-reflow in STEMI patients treated by PCI. Received 29 August 2019. Revised 25 March 2020. Accepted 16 April 2020. Funding: The study did not have sponsorship. Conflict of interest: Authors declare no conflict of interest.
Highlights
ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯПоступила в редакцию 29 августа 2019 г.
Принята к печати 16 апреля 2020 г.
Цитировать: Бессонов И.С., Кузнецов В.А., Горбатенко Е.А., Сапожников С.С., Дьякова А.О., Зырянов И.П., Петелина Т.И.
Summary
Поступила в редакцию 29 августа 2019 г. Принята к печати 16 апреля 2020 г. Цитировать: Бессонов И.С., Кузнецов В.А., Горбатенко Е.А., Сапожников С.С., Дьякова А.О., Зырянов И.П., Петелина Т.И. Шкала оценки риска феномена no-reflow при чрескожных коронарных вмешательствах у пациентов с острым инфарктом миокарда с подъемом сегмента ST.
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