Abstract
In primary percutaneous coronary intervention (PCI) for acute coronary syndrome (ACS), the presence of a thrombus or unstable plaque can cause microvascular obstructions, which may increase infarct size and reduce survival. Excimer laser coronary angioplasty (ELCA) is a unique revascularization technique that can vaporize plaques and thrombi. However, to date, only few reports indicate the efficacy of ELCA for ACS. We retrospectively analyzed 113 consecutive ACS patients who underwent PCI with either ELCA or manual thrombus aspiration therapy (TA) before balloon angioplasty or stenting and who had a Thrombolysis in Myocardial Infarction flow (TIMI) grade 0 on the first contrast injection within 24 h of onset at our hospital from March 2011 to March 2020. Patients were divided into two groups by the procedure used: ELCA (N = 48) and TA (N = 50). Door-to-reperfusion time was significantly shorter in the ELCA group than TA group (89.2 ± 6.7 vs. 137.9 ± 12.3 min, respectively; P < 0.01). There was also a significant difference in peak creatine kinase-myocardial band between the ELCA and TA groups (242 ± 25 vs. 384 ± 63 IU/L, respectively; P = 0.04). Although there was no difference in myocardial blush grade (MBG) before treatment, the MBG after treatment was higher in the ELCA group (P < 0.01). In-hospital major adverse cardiac events (MACE) were also significantly fewer in the ELCA group than in the TA group (8% vs. 20%, P = 0.045). ELCA for TIMI grade 0 ACS may shorten reperfusion time, improve the MBG score, and reduce MACE when compared to TA.
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The data that support the findings of this study are available from the corresponding author on reasonable request.
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by TA, TT, DI, and SF. The first draft of the manuscript was written by TA and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Arai, T., Tsuchiyama, T., Inagaki, D. et al. Benefits of excimer laser coronary angioplasty over thrombus aspiration therapy for patients with acute coronary syndrome and thrombolysis in myocardial infarction flow grade 0. Lasers Med Sci 38, 13 (2023). https://doi.org/10.1007/s10103-022-03691-0
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DOI: https://doi.org/10.1007/s10103-022-03691-0