No-reflow phenomenon is common in patients with acute coronary syndrome(ACS)after percutaneous coronary intervention(PCI),and it is strongly associated with adverse clinical prognosis.Previous studies have shown that ...No-reflow phenomenon is common in patients with acute coronary syndrome(ACS)after percutaneous coronary intervention(PCI),and it is strongly associated with adverse clinical prognosis.Previous studies have shown that heavy thrombus burden could predict the development of no-reflow in PCI.Manual and mechanical thrombus aspiration catheters are widely used;however,there is still residual refractory thrombus left after the routine use of thrombectomy,especially in patients with subacute myocardial infarction(SMI).In our practice,child catheter aspiration has been used as a safe and effective approach to solve the residual thrombus in SMI patients.We described this technique in detail by a series of cases.展开更多
Background： Previous studies revealed that culprit vessels of ST-segment elevation myocardial infarction （STEMI） were often related to mild or moderate stenosis. However, recent studies suggested that severe stenos...Background： Previous studies revealed that culprit vessels of ST-segment elevation myocardial infarction （STEMI） were often related to mild or moderate stenosis. However, recent studies suggested that severe stenosis was primarily found in culprit lesions. The objective of this study was to analyze the stenosis severity of culprit lesions in STEMI patients and to clarity the paradoxical results. Methods： A total of 489 consecutive STEMI patients who underwent primary percutaneous coronary intervention were retrospectively studied from January 2012 to December 2014. The patients were divided into three groups based on stenosis severity using quantitative coronary analysis： Group A, 314 cases, stenosis 〉70%： Group B, 127 cases, stenosis 50-70%： and Group C, 48 cases, stenosis 〈_50%,. The clinical, demographic, and angiographic data of all groups were analyzed. Results： Patients in Group A exhibited a significantly higher prevalence of history of angina pectoris （95.9% vs. 62.5%, P 〈 0.001 ）, inultivessel disease （73.2% vs. 54.2%, P = 0.007）, and lower cardiac ejection ITaction （53.3 ± 8.6 vs. 56.8 ± 8.4, P = 0.009） than those in Group C. Multivariable analysis revealed that history of angina pectoris （odds ratio [OR]： 13.89, 95% confidence interval [（7]： 6.21-31.11 ） and multivessel disease （OR： 2.32, 95%, CI： 1.25-4.31 ） were correlated with severe stenosis of the culprit lesion in Group A. Conclusions： Most culprit lesions in STEM[ patients were severe stenosis. These patients exhibited a higher prevalence of angina history and multivessel diseases.展开更多
文摘No-reflow phenomenon is common in patients with acute coronary syndrome(ACS)after percutaneous coronary intervention(PCI),and it is strongly associated with adverse clinical prognosis.Previous studies have shown that heavy thrombus burden could predict the development of no-reflow in PCI.Manual and mechanical thrombus aspiration catheters are widely used;however,there is still residual refractory thrombus left after the routine use of thrombectomy,especially in patients with subacute myocardial infarction(SMI).In our practice,child catheter aspiration has been used as a safe and effective approach to solve the residual thrombus in SMI patients.We described this technique in detail by a series of cases.
文摘Background： Previous studies revealed that culprit vessels of ST-segment elevation myocardial infarction （STEMI） were often related to mild or moderate stenosis. However, recent studies suggested that severe stenosis was primarily found in culprit lesions. The objective of this study was to analyze the stenosis severity of culprit lesions in STEMI patients and to clarity the paradoxical results. Methods： A total of 489 consecutive STEMI patients who underwent primary percutaneous coronary intervention were retrospectively studied from January 2012 to December 2014. The patients were divided into three groups based on stenosis severity using quantitative coronary analysis： Group A, 314 cases, stenosis 〉70%： Group B, 127 cases, stenosis 50-70%： and Group C, 48 cases, stenosis 〈_50%,. The clinical, demographic, and angiographic data of all groups were analyzed. Results： Patients in Group A exhibited a significantly higher prevalence of history of angina pectoris （95.9% vs. 62.5%, P 〈 0.001 ）, inultivessel disease （73.2% vs. 54.2%, P = 0.007）, and lower cardiac ejection ITaction （53.3 ± 8.6 vs. 56.8 ± 8.4, P = 0.009） than those in Group C. Multivariable analysis revealed that history of angina pectoris （odds ratio [OR]： 13.89, 95% confidence interval [（7]： 6.21-31.11 ） and multivessel disease （OR： 2.32, 95%, CI： 1.25-4.31 ） were correlated with severe stenosis of the culprit lesion in Group A. Conclusions： Most culprit lesions in STEM[ patients were severe stenosis. These patients exhibited a higher prevalence of angina history and multivessel diseases.
