scholarly journals Prognostic Association of Circulating Neutrophil Count with No-Reflow in Patients with ST-Segment Elevation Myocardial Infarction following Successful Primary Percutaneous Intervention

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Jinfan Tian ◽  
Yue Liu ◽  
Yanfei Liu ◽  
Xiantao Song ◽  
Min Zhang ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Neutrophil Count ◽  
Percutaneous Intervention ◽  
St Segment Elevation ◽  
Segment Elevation Myocardial Infarction ◽  
No Reflow ◽  
St Segment ◽  
Group A ◽  
Group B ◽  
Primary Percutaneous Intervention

Objective.The aim of the present study was to investigate the predictive value of neutrophil count for no-reflow in patients with ST-segment elevation myocardial infarction (STEMI) who underwent successful primary percutaneous intervention (PCI).Methods.We conducted a retrospective study of 361 patients diagnosed with acute STEMI between 2011 and 2015. All patients underwent successful PCI within 12 h from the onset of symptoms. Angiographic no-reflow was diagnosed based on a post-PCI thrombolysis in myocardial infarction flow grade ≤ 2 without mechanical obstruction. According to a neutrophil count cut-off determined by receiver operating characteristic curve analysis, patients were divided into two groups: group A (neutrophil count < 9.14 × 109/L) and group B (neutrophil count ≥ 9.14 × 109/L).Results.Compared to patients in the normal reflow group, patients with no-reflow had higher neutrophil counts (P<0.05). The incidence rate of no-reflow in group A (18, 9.3%) was significantly lower than that in group B (38). Multivariate logistic regression analysis revealed that a neutrophil count ≥ 9.14 × 109/L was independently predictive for no-reflow (odds ratio = 4.474, 95% confidence interval: 1.610–12.433,P=0.004) after adjusting for potential confounders.Conclusions.A circulating neutrophil count ≥ 9.14 × 109/L is independently associated with no-reflow in patients with acute STEMI following primary PCI.

Abstract 14178: Characteristics and Outcomes of Young ST Segment Elevation Myocardial Infarction Patients Undergoing Primary Percutaneous Intervention

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Benjamin W Tung ◽  
Zhe Yan Ng ◽  
William Kristanto ◽  
Kalyar W Saw ◽  
winnie C sia ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Older Patients ◽  
Young Patients ◽  
Percutaneous Intervention ◽  
Old Patients ◽  
Younger Patients ◽  
St Segment Elevation ◽  
Segment Elevation Myocardial Infarction ◽  
St Segment ◽  
Primary Percutaneous Intervention

Introduction: ST-segment elevation myocardial infarction (STEMI) is associated with significant morbidity and mortality leading to loss of productivity and productive life years, especially in younger patients. Understanding the characteristics of younger patients with STEMI and their outcomes could help focus public health efforts in STEMI prevention within a population. Aim: This study aims to compare the characteristics and outcomes of younger versus older patients with STEMI undergoing primary percutaneous intervention (PPCI). Methods: Data from the Coronary Care Unit database of the National University Hospital between July 2015 to June 2019 was reviewed. Patients were divided into Young (<50 years old) or Old (≥50 years old) groups. Results: Of the 1818 consecutive patients with STEMI and underwent PPCI, 465 (25.6%) were Young patients with mean age 43±4.9 years old as compared to Old patients with mean age 63.2±9.4 years old. Young patients were more likely to be male (94% vs. 85%, p<0.0001), current smokers (61.1% vs. 42.6%, p<0.0001), of Indian ethnicity (32% vs. 16.3%, p<0.0001), and had family history of myocardial infarction (MI) (18.1% vs. 9.5%, p<0.0001). Compared to Old patients, Young patients had better post-MI left ventricular ejection fraction (49.5±10.7 vs. 47.8±11.6, p=0.007) with fewer of them suffered from cardiogenic shock (7.1% vs. 13.2%, p<0.0001), and had lower mortality at one year (3.4% vs. 10.4%, p<0.0001). Although diabetes, hypertension and hyperlipidemia was less common among the Young patients when compared to the Old, the prevalence was high in the range of 28 to 38% (Table 1). Conclusions: A sizable proportion of STEMI patients are younger than 50 years old. The risk profile of these younger patients can be attributed to constitutional factors and smoking but other cardiovascular risk factors are also prevalent among them. Although mortality is lower among the younger than the older patients, it is not negligible.

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