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ȣ - 480358 21 |
Impact of Balloon Inflation Pressure during Primary Coronary Stenting on Clinical Outcomes in Patient with Acute Myocardial Infarction |
Division of Cardiology, Internal Medicine, Dongsan Medical Center, Keimyung University |
Yun-Kyeong Cho, Seung-Ho Hur, Kwon-Bae Kim, Young-Soo Lee, Chang-Wook Nam, Sang-Hoon Lee, Seong-Wook Han, Mi-Sun Song, Kee-Sik Kim, Yoon-Nyun Kim |
Background: High pressure balloon inflation has been used as a standard technique during stent implantation in practice. However, the efficacy of this strategy is not well established during primary coronary stenting. We evaluated the clinical outcomes at 6 months follow-up according to balloon inflation pressure in patient with acute myocardial infarction (AMI) who underwent primary coronary stenting. Methods: This retrospective study included 117 patients who underwent coronary stent (≥ 3.0mm sized) implantation. According to balloon inflation pressure, all patients were divided into 3 groups: Group 1 low pressure (< 12atm), Group 2 moderate pressure (≥ 12 to < 16atm), Group 3 high pressure (≥ 16atm). The clinical outcomes (include death, non-fatal myocardial infarction, target vessel revascularization) were evaluated at 6 months follow-up. Results: See as a following table. Conclusion: The use of moderate to high pressure balloon inflation during primary coronary stenting did not show better late clinical outcomes.
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Group 1 |
Group 2 |
Group 3 |
Number of Patients |
21 |
66 |
30 |
Age (years) |
59 |
61 |
59 |
Reference VD (mm) |
3.2 |
3.4 |
3.4 |
Post_MLD (mm) |
3.1 |
3.3 |
3.3 |
Stent size (mm) |
3.4 |
3.5 |
3.5 |
No - reflow |
1 (4.8%) |
5 (7.6%) |
2 (6.7%) |
AT or SAT |
1 (4.8%) |
0 (0.0%) |
0 (0.0%) |
Death |
0 (0.0%) |
4 (6.1%) |
1 (3.3%) |
Non-fatal MI |
0 (0.0%) |
1 (1.5%) |
0 (0.0%) |
TVR |
1 (4.8%) |
4 (6.1%) |
1 (3.3%) |
All data p>0.05, VD: vessel diameter, MLD: minimal lumen diameter,
AT: acute thrombosis, SAT: subacute thrombosis, TVR: total vessel
revascularization
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