Prevention of Coronary Slow Flow or No-Reflow During PPCI in Patients With Acute STEMI (NOSLOWFLOW-Ⅰ)
ST Segment Elevation Myocardial Infarction, Primary Percutaneous Coronary Intervention
About this trial
This is an interventional prevention trial for ST Segment Elevation Myocardial Infarction focused on measuring Prevention, Slow flow, No reflow, Nitroprusside, Tirofiban
Eligibility Criteria
Inclusion Criteria:
- Ischemic symptoms < 12h, or evidence of ongoing ischemia 12h after symptom onset
- Continued ischemic chest pain > 30min
- ST-segment elevation ≥ 0.1 millivolt in 2 or more contiguous leads on the 12-lead ECG or new left bundle branch block (LBBB)
- Detection of a rise of cardiac biomarker values with at least one value above the 99th percentile upper reference limit (URL)
- Primary coronary artery angiography was planned.
Exclusion Criteria:
- Emergency thrombolytic therapy was performed before primary coronary artery angiography
- Cardiogenic shock with no response to hypervolemic treatment or vasopressor
- Severe cardiomyopathy or valvular disease requiring intervention
- Coronary ectasia
- Severe heart failure
- Contraindication or allergy to antiplatelet drugs
- Contraindication or allergy to experimental drugs
- Unable to receive at least 1 year of dual antiplatelet therapy
- Active bleeding or extreme-risk for major bleeding
- Severe liver or renal failure
- Life expectancy < 1 year
- Unable or unwilling to provide informed consent
- Women of child bearing potential
- Under 18 years of age
- Hemoglobin < 90g/L
- Platelet count < 100×10^9/L
- Can not cooperate (with mental disorders or cognitive disorders)
Sites / Locations
- Anyang District HospitalRecruiting
- The 99th Central Hospital of the People's Liberation ArmyRecruiting
- The People's Hospital of JiaozuoRecruiting
- The second people's Hospital of JiyuanRecruiting
- Huaihe Hospital of Henan UniversityRecruiting
- Kaifeng Central HospitalRecruiting
- The First Affiliated Hospital of Henan University of Science and TechnologyRecruiting
- Lushan People's HospitalRecruiting
- Nanyang City Center HospitalRecruiting
- Pingmei Shenma Medical Group General HospitalRecruiting
- The Second People's Hospital of PingdingshanRecruiting
- Puyang Oilfield General HospitalRecruiting
- Puyang People's HospitalRecruiting
- Yellow River Sanmenxia hospitalRecruiting
- The First People's Hospital of ShangqiuRecruiting
- The First Affiliated Hospital of Xinxiang Medical UniversityRecruiting
- Xinyang Central HospitalRecruiting
- Yanshi People's HospitalRecruiting
- Zhengzhou First People's HospitalRecruiting
- Zhengzhou Cardiovascular HospitalRecruiting
- Zhengzhou Central HospitalRecruiting
- The First Affiliated Hospital of Zhengzhou UniversityRecruiting
- People's Hospital of ZhengzhouRecruiting
- The First People's Hospital of XinmiRecruiting
- Zhoukou Central HospitalRecruiting
- The First People's Hospital of ZhumadianRecruiting
- Zhumadian Central HospitalRecruiting
- Jincheng People's HospitalRecruiting
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Placebo Comparator
Nitroprusside group
Tirofiban group
Control group
After coronary target vessel blood flow recovery by thrombus aspiration or/and balloon angioplasty (diameter ≤ 2.0mm), intracoronary infusion of Nitroprusside Sodium via guide-catheter was performed. Then repeated administration of Nitroprusside Sodium was done prior to coronary stent implantation or post dilatation.
After coronary target vessel blood flow recovery by thrombus aspiration or/and balloon angioplasty (diameter ≤ 2.0mm), intracoronary infusion of Tirofiban Hydrochloride via guide-catheter was performed.
After coronary target vessel blood flow recovery by thrombus aspiration or/and balloon angioplasty (diameter ≤ 2.0mm), intracoronary infusion of heparinized saline via guide-catheter was performed.