Baseline characteristics of trials included in the meta-analysis.

REMEDIA = The Randomized Evaluation of the Effect of Mechanical Reduction of Distal Embolization by Thrombus-Aspiration in Primary and Rescue Angioplasty Trial; TASTE = Thrombus Aspiration in ST-Elevation myocardial infarction in Scandinavia; DEAR-MI = The Dethrombosis to Enhance Acute Reperfusion in Myocardial Infarction Study; EXPORT = A Multicentre Randomized Controlled Trial of The EXPORT Aspiration Catheter; TROFI = Randomized Study to Assess the Effect of ThRombus Aspiration on Flow Area in Patients with ST-Elevation Myocardial Infarction; NONSOP = Intracoronary Aspiration before coronary Stenting in Patients with Acute Myocardial Infarction; PIHRATE = the Polish-Italian-Hungarian RAndomized ThrombEctomy Trial; ITTI = The Initial Thrombosuction and Tirofiban Infusion trial; MUSTELA = MUltidevice Thrombectomy in Acute ST-Segment Elevation Acute Myocardial Infarction Trial; TAPAS = The Thrombus Aspiration during Percutaneous Coronary Intervention in Acute Myocardial Infarction Study; INFUSE-AMI = Infuse–Acute Myocardial Infarction; An Optical Frequency Domain Imaging Study; EXPIRA = The Thrombectomy With Export Catheter in Infarct-Related Artery During Primary Percutaneous Coronary Intervention Prospective, Randomized Trial; VAMPIRE = VAcuuM asPIration thrombus Removal trial;*Values for all thrombectomy (manual and mechanical) vs. conventional PCI alone;†Median;‡mean ischaemia time of all patients;NA: not available; H: In-hospital clinical outcomes.Baseline characteristics of trials included in the meta-analysis.

本部分收录多项急性心肌梗死相关血栓抽吸术随机对照试验的定义：
REMEDIA：《原发性与补救性血管成形术中采用血栓抽吸术机械清除远端栓塞效果的随机评估试验》（Randomized Evaluation of the Effect of Mechanical Reduction of Distal Embolization by Thrombus-Aspiration in Primary and Rescue Angioplasty Trial，缩写REMEDIA）；
TASTE：《北欧ST段抬高型心肌梗死患者血栓抽吸术试验》（Thrombus Aspiration in ST-Elevation myocardial infarction in Scandinavia，缩写TASTE）；
DEAR-MI：《心肌梗死急性期血栓清除以增强再灌注研究》（The Dethrombosis to Enhance Acute Reperfusion in Myocardial Infarction Study，缩写DEAR-MI）；
EXPORT：《EXPORT抽吸导管多中心随机对照试验》（A Multicentre Randomized Controlled Trial of The EXPORT Aspiration Catheter，缩写EXPORT）；
TROFI：《评估ST段抬高型心肌梗死患者血栓抽吸术对血流面积影响的随机研究》（Randomized Study to Assess the Effect of ThRombus Aspiration on Flow Area in Patients with ST-Elevation Myocardial Infarction，缩写TROFI）；
NONSOP：《急性心肌梗死患者冠状动脉支架置入术前冠状动脉内抽吸术研究》（Intracoronary Aspiration before coronary Stenting in Patients with Acute Myocardial Infarction，缩写NONSOP）；
PIHRATE：《波兰-意大利-匈牙利随机血栓切除术试验》（the Polish-Italian-Hungarian RAndomized ThrombEctomy Trial，缩写PIHRATE）；
ITTI：《初始血栓抽吸与替罗非班输注试验》（The Initial Thrombosuction and Tirofiban Infusion trial，缩写ITTI）；
MUSTELA：《急性ST段抬高型心肌梗死多器械血栓切除术试验》（MUltidevice Thrombectomy in Acute ST-Segment Elevation Acute Myocardial Infarction Trial，缩写MUSTELA）；
TAPAS：《急性心肌梗死患者经皮冠状动脉介入治疗术中血栓抽吸术研究》（The Thrombus Aspiration during Percutaneous Coronary Intervention in Acute Myocardial Infarction Study，缩写TAPAS）；
INFUSE-AMI：《INFUSE-AMI心肌梗死：光学频域成像研究》（Infuse–Acute Myocardial Infarction; An Optical Frequency Domain Imaging Study，缩写INFUSE-AMI）；
EXPIRA：《原发性经皮冠状动脉介入治疗期间梗死相关动脉使用EXPORT导管血栓切除术的前瞻性随机试验》（The Thrombectomy With Export Catheter in Infarct-Related Artery During Primary Percutaneous Coronary Intervention Prospective, Randomized Trial，缩写EXPIRA）；
VAMPIRE：《真空抽吸血栓清除试验》（VAcuuM asPIration thrombus Removal trial，缩写VAMPIRE）。

*所有血栓切除术（含手动与机械方式）对比单纯常规经皮冠状动脉介入治疗的研究结果；
†中位值；
‡所有受试患者的平均缺血时间；
NA：无可用数据；
H：院内临床结局。
本荟萃分析纳入的各项试验的基线特征。