Early rhBNP on Myocardial Work in Patients With STEMI
ST-Segment Elevated Myocardial Infarction

About this trial
This is an interventional treatment trial for ST-Segment Elevated Myocardial Infarction focused on measuring ST-Segment Elevated Myocardial Infarction, rhBNP, non-invasive myocardial work
Eligibility Criteria
Inclusion Criteria:
1. Anterior myocardial infarct (anterior myocardial infarct is defined as persistent chest pain for 30 mins at least, with ST-segment elevation of at least 0.2 mV in two or more contiguous precordial leads) within 12 hours after onsets of symptom;
2. No contraindication for rhBNP;
3. Left anterior descending (LAD) as culprit vessel, with TIMI 0-1 grade.
Exclusion Criteria:
1.Cardiogenic shock (systolic BP <90mmHg after fluid infusion or systolic BP<100mmHg after vasoactive drugs);
2. History of myocardial infarct;
3.Severe arrhythmia: with III degree A-V block ,atrial fibrillation,ventricular fibrillation,ventricular tachycardia;
4. Any history of severe renal or hepatic dysfunction (hepatic failure, cirrhosis, portal hypertension or active hepatitis); neutropenia or thrombocytopenia; known acute pancreatitis;
5. Pregnant or lactating;
6. life expectancy≤12 months;
7. Inability to follow the protocol and comply with follow-up requirements or any other reason the investigator feels would place the patient at increased risk;
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
rhBNP
Control
rhBNP intra-coronary injection 1.5 ug/kg loading dose, with intravenous injection 0.0075-0.01 ug/kg/min persistent for 72 hour.
Saline intra-coronary injection 0.15ml/kg loading dose, with same intravenous injection speed for 72 hour after randomization.