Observational Study
Copyright ©The Author(s) 2019.
World J Clin Cases. Aug 6, 2019; 7(15): 2013-2021
Published online Aug 6, 2019. doi: 10.12998/wjcc.v7.i15.2013
Table 1 Thrombus extraction in patients with percutaneous coronary intervention at different acute myocardial infarction onset time in non-ST-segment elevation myocardial infarction and ST-segment elevation myocardial infarction groups, n (%)
GroupsWhite thrombus< 3 h3–6 h6–12 h
NSTEMI (38 cases)Yes3 (50.0)12 (75.0)13 (81.25)
No3 (50.0)4 (25.0)3 (18.75)
STEMI (116 cases)Yes1 (4.00)1 (1.92)2 (5.13)
No24 (96.0)51 (98.08)37 (94.87)
Fisher37.66229.418
P value0.016< 0.001< 0.001
Table 2 Relationship between different thrombus properties and incidence of no-reflow and slow blood flow after percutaneous coronary intervention at different acute myocardial infarction onset time, n (%)
SubgroupsNo reflow or slow blood flow< 3 h3-6 h6-12 h
White thrombus (32 cases)No3 (75.0)5 (38.46)3 (20.0)
Yes1 (25.0)8 (61.54)12 (80.0)
Red thrombus (122 cases)No27 (100)50 (90.91)30 (75.0)
Yes0 (0)5 (9.09)10 (25.0)
Fisher15.46713.75
P value0.143< 0.001< 0.001
Table 3 Relationship between acute myocardial infarction onset time and no reflow and slow blood flow during operation, n (%)
No reflow or slow blood flow< 3 h3-6 h6-12 hChi-squareP value
Yes (36 cases)1 (3.23)13 (19.12)22 (40.0)16.201< 0.001
No (121 cases)30 (96.7)755 (80.88)33 (60.0)