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- W3032861851 abstract "Objective To investigate the level of platelet activating factor (PAF) in acute myocardial infarction (AMI) in minipig model and patients, and to study the relationship between PAF and lethal arrhythmia referring to ventricular fibrillation and ventricular tachycardia. Method ( 1 ) The levels of PAF in minipig models ( n = 20) were measured by using ELISA before and 1h after occlusion of left anterior descending coronary artery with balloon at the junction of 1/3 middle and distal portion. The lethal arrythmia was recorded by using electrocardiography. (2) In patients with AMI (n = 72), the levels of PAF were measured on arrival, and 24 h,48 h and 72 h later. The lethal arrythmia, acute heart failure and cardiogenic shock were documented. Results ( 1 ) In minipigs with occlusion of coronary artery for one hour, the mean level of PAF increased from (4.66± 2.89)ng/mL to (6.00±2.82) ng/mL,and thus the increment in PAF was (1 .34± 1.40) ng/mL (P ＜ 0.05). In 13 minipigs with lethal anythmia after occlusion of coronary artery for one hour, the increment in mean level of PAF was ( 1.92 ± 1 .34) ng/mL, whereas the increment in mean level of PAF in other 7 minipigs without lethal arrythmia after occlusion of coronary artery for one hour was as low as (0.28 ± 0. 74 ) ng/mL ( P ＜ 0. 05 ). ( 2 ) In patients, the mean levels of PAF on arrival, 24 h,48 h,and 72 hous after admission were (0.47 ± 0.05) ng/mL,(2.38±0.12) ng/mL,(3.65±0.15) ng/mL and (3.02±0.10) ng/mL, respectively. Of 72 ACI patients, 40 (55%) had complication of lethal arrythnia, heart failure or cardiogenic shock and their mean level of PAF 48 h after admission was (4.72 ± 0.16) ng/mL, whereas mean level of PAF in other 32 (44.44%) without complications was (2.31 ±0.03) ng/mL ( P ＜0.05). Conclusions The level of PAF increased after acute myocardial infarction, and the minipigs and AMI patients complicated with lethal arrythmia had higher levels of PAF.Key words: Platelet activating factor (PAF); Acute myocardial infarction; Ischemic/repeffusion; Arrhythmia" @default.
- W3032861851 created "2020-06-05" @default.
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- W3032861851 date "2010-12-10" @default.
- W3032861851 modified "2023-09-23" @default.
- W3032861851 title "Investigation of platelet activating factor (PAF) in acute myocardial infarction" @default.
- W3032861851 doi "https://doi.org/10.3760/cma.j.issn.1671-0282.2010.12.019" @default.
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