Author + information
- Kanber Ocal Karabay1,
- Emine Altuntas1,
- Serkan Kahraman1,
- Ersin Ozen2,
- Onder Demıroz1,
- Omer Yildiz2 and
- Vedat Aytekin2
Postdilatation after stent implantation in stable patients has been recommended to achieve better angiographic results, but its effect in primary percutaneous coronary intervention (PCI) is less clear.
Our objective was to determine whether postdilatation has an effect on clinical outcomes in STEMI. Our objective was to determine whether postdilatation has an effect on clinical outcomes in STEMI.
This study was a single-center retrospective, observational study including patients who presented with STEMI and were treated with primary PCI between January 2008 and March 2013. Patients with STEMI who were treated with primary PCI were included. Patients with non-ST-elevation myocardial infarction, bypass graft occlusion, or who were not treated with primary PCI were excluded. The patients were divided into two groups: 1) patients who did not undergo postdilatation after stent implantation (Group 1) and 2) patients who underwent postdilatation (Group 2). The patient demographics, risk factors, clinical presentation, procedural properties, and major adverse cardiac events (MACE), including target lesion revascularization, target vessel failure, and cardiac death at the hospital or during follow-up, were compared between the two groups.
In total, 227 patients underwent primary PCI for STEMI and were treated with at least one stent. A total of 218 patients were included (Group 1= 57, Group 2 =161). The follow-up time was 79.68 ±58.89 weeks in Group 1 and 141.30 ± 87.07 weeks in Group 2 (p<0.001). The patient demographics, risk factors, clinical presentation and procedural properties were all similar except for the increased use of predilatation (75.4% vs. 94.4%, p<0.001) and intracoronary nitroglycerine in Group 2 (50.9% vs. 71.4%, p<0.05). The mean final TIMI coronary flow was better in Group 1 (2.89 ± 0.31 vs. 2.61 ± 0.66, p<0.05). The MACE rate both in hospital and during follow-up did not differ between Groups 1 and 2.
Although stent postdilatation is negatively correlated with the final TIMI flow grade, it does not appear to be correlated with worse long-term clinical outcomes.