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Influences of balloon deflation strategy on coronary flow during primary percutaneous coronary intervention for acute ST-segment elevation myocardial infarction

A randomized trial of rapid balloon deflation versus slow balloon deflation to improve coronary flow during primary percutaneous coronary intervention acute ST-segment elevation myocardial infarction

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR-ICR-15006910
Enrollment
Unknown
Registered
2015-08-10
Start date
2015-09-01
Completion date
Unknown
Last updated
2017-04-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

acute ST-segment elevation myocardial infarction

Interventions

A:rapid balloon deflation
B:slow balloon deflation

Sponsors

Shanghai Ninth People's Hospital,Shanghai Jiaotong University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. Male and female patients =18 and = 80 years of age; 2. STEMI patients (presenting within 12 h after chest pain onset, with ST-segment elevation=0.1 mV in two contiguous leads on 12-lead electrocardiogram or new left bundle branch block); 3. Target vessel diameter between 2.5mm and 4.0mm; 4. If the target lesion requires stent overlapping, at least 2mm of overlapping section is guaranteed; 5. Visual residual diameter stenosis =70% before stent implantation; 6. Voluntary participation and signed informed consent.

Exclusion criteria

Exclusion criteria: 1. Acute occlusive lesion of left main, bypass grafting and in-stent; 2. Cardiogenic shock; 3. High risk of bleeding; 4. Complicated with Other serious diseases (malignant tumor, Organ transplantation or candidate); 5. Allergy to aspirin, heparin, clopidogrel or rapamycin; 6. Severe liver and kidney disfunction.

Design outcomes

Primary

MeasureTime frame
corrected TIMI frame count (CTFC) of infarction related artery (IRA);

Secondary

MeasureTime frame
TIMI flow grade (TFG) of IRA;TIMI Myocardial Blush Grades (MBG);TIMI myocardial perfusion grade (TMPG);No-reflow;ST-segment resolution on ECG assessed 2 h after reperfusion;Myocardial enzyme peak;LVEF;final infarct size assessed by MRI at 6 months after reperfusion;MACE in hospital, 30 days, 6 months and 12 months after reperfusion;

Countries

China

Contacts

Public ContactChangqian Wang
changqianwang@hotmail.com+86 13916006734

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026