Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
ISSN-L : 1346-9843
Clinical Investigation
Effect of Combined Intracoronary Adenosine and Nicorandil on No-Reflow Phenomenon During Percutaneous Coronary Intervention
Sang Yup LimEun Hui BaeMyung Ho JeongDong Goo KangYeon Sang LeeKye Hun KimSang Hyun LeeKyung Ho YoonSeo Na HongHyung Wook ParkYoung Joon HongJu Han KimWeon KimYoung Keun AhnJeong Gwan ChoJong Chun ParkJung Chaee Kang
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2004 Volume 68 Issue 10 Pages 928-932

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Abstract

Background This study aimed to clarify the effect of intracoronary administration of combined adenosine and nicorandil on the no-reflow phenomenon. Methods and Results Fifty patients (67±10 years, 30 male) with acute myocardial infarction (AMI) who developed no-reflow phenomenon during primary percutaneous coronary intervention (PCI) between June 2001 and May 2003 comprised the study group, which was divided into 2 groups: group I [25 patients, 67±10 years, 13 male; adenosine (24 μg/ml) alone in addition to nitrate] and group II [25 patients, 66±9 years, 17 male; combined intracoronary administration of adenosine and nicorandil (2 mg/ml) in addition to nitrate]. In-hospital and 6-month major adverse cardiac events (MACE) after PCI were compared between the 2 groups. Risk factors of coronary disease, left ventricular ejection fraction and wall motion score were not significantly different between the 2 groups (p=NS). Time interval from the onset of chest pain to PCI, number of involved vessels, lesion type according to ACC/AHA classification and TIMI flow grade (TFG) were not significantly different in both groups (p=NS). Incidence of thrombosis or dissection after balloon angioplasty, diameter and length of stent, and use of Reopro® during PCI were not significantly different. TFG after PCI (2.0±0.9 vs 2.6±0.6, p=0.024), ΔTFG (1.5±1.1 vs 2.2±1.0, p=0.033) and difference in TIMI frame count (TFC) before and after PCI (ΔTFC) were greater in group II than group I (45.2±24.5 vs 63.6±23.2, p=0.014). Myocardial blush score 3 was obtained more frequently in group II than group I (44% vs 76%, p=0.014). In-hospital death did not occur in any of group II, but 4 patients of group I died (p=0.043). Two cases of MACE developed in each group and heart failure occurred in 3 (12%) of group I and 1 (4%) of group II patients during the 6-month follow-up (p=NS). Conclusions Intracoronary administration of adenosine combined with nicorandil may improve both the occurrence of no-reflow in patients during PCI for AMI and short-term clinical outcome, compared with adenosine alone. (Circ J 2004; 68: 928 - 932)

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© 2004 THE JAPANESE CIRCULATION SOCIETY
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