PMID- 37502767 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230729 IS - 2186-2494 (Electronic) IS - 1882-4072 (Print) IS - 1882-4072 (Linking) VI - 15 IP - 8 DP - 2021 TI - Periprocedural Variability of Platelet Functions in Carotid Artery Stenting: An Analysis Using VerifyNow. PG - 505-516 LID - 10.5797/jnet.oa.2020-0170 [doi] AB - OBJECTIVE: The assessment of platelet functions is necessary to prevent both thromboembolic and hemorrhagic complications under dual antiplatelet therapy (DAPT). Using the VerifyNow (Accumetrics, Inc., San Diego, CA, USA) assay, this study aimed to reveal time-dependent changes in platelet functions after carotid artery stenting (CAS). METHODS: We enrolled retrospectively 43 patients who underwent CAS under DAPT. Aspirin reaction unit (ARU) and P2Y12 reaction unit (PRU) values were determined on the day before and on days 1, 3, and 7 after the procedure. Multiple comparison tests (MCTs) were performed among ARU and PRU measurement points, and the proportions of hypo- and hyper-responses were compared. RESULTS: The median ARU values were 408 (interquartile range: 392-497) before CAS and 418 (405-470) on day 1, 405 (393.0-460.5) on day 3, and 402 (388.5-477.5) on day 7 (not significant in MCTs). The percentages of hypo-responses were 16.3%, 7.0%, 2.3%, and 7.0%, respectively (p = 0.11). The significantly different median PRU values were 173 (116.5-209.5), 233 (166.5-273.5), 139 (70.5-205.5), and 51 (9.0-79.5), respectively. The median PRU was before the procedure within the therapeutic range but exceeded the upper cutoff on day 1 and was below the lower cutoff on day 7. The percentages of hypo-responses were 14.0%, 51.2%, 18.6%, and 11.6%, respectively (p <0.001) and the percentages of hyper-responses were 9.3%, 2.3%, 23.3%, and 62.8%, respectively (p <0.001). CONCLUSION: In the periprocedural CAS period, ARU values were stable, but PRU values showed time-dependent changes. PRU values were above the therapeutic range the day after CAS but decreased below this range on day 7. CI - (c)2021 The Japanese Society for Neuroendovascular Therapy. FAU - Yoshimura, Masataka AU - Yoshimura M AD - Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan. AD - Department of Neurosurgery, Tsuchiura Kyodo General Hospital, Tsuchiura, Ibaraki, Japan. FAU - Sumita, Kazutaka AU - Sumita K AD - Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan. FAU - Fujii, Shoko AU - Fujii S AD - Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan. FAU - Miki, Kazunori AU - Miki K AD - Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan. FAU - Aizawa, Yuki AU - Aizawa Y AD - Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan. FAU - Fujita, Kyohei AU - Fujita K AD - Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan. FAU - Yamamoto, Shinji AU - Yamamoto S AD - Department of Neurosurgery, Tsuchiura Kyodo General Hospital, Tsuchiura, Ibaraki, Japan. FAU - Nemoto, Shigeru AU - Nemoto S AD - Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan. FAU - Maehara, Taketoshi AU - Maehara T AD - Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan. LA - eng PT - Journal Article DEP - 20210106 PL - Japan TA - J Neuroendovasc Ther JT - Journal of neuroendovascular therapy JID - 101488164 PMC - PMC10370580 OTO - NOTNLM OT - VerifyNow OT - carotid artery stenting OT - platelet function COIS- The authors report no conflicts of interest concerning the materials or methods used in this study or the findings specified in this paper. EDAT- 2021/01/01 00:00 MHDA- 2021/01/01 00:01 PMCR- 2021/01/01 CRDT- 2023/07/28 04:21 PHST- 2020/09/03 00:00 [received] PHST- 2020/10/31 00:00 [accepted] PHST- 2021/01/01 00:01 [medline] PHST- 2021/01/01 00:00 [pubmed] PHST- 2023/07/28 04:21 [entrez] PHST- 2021/01/01 00:00 [pmc-release] AID - jnet.oa.2020-0170 [pii] AID - 10.5797/jnet.oa.2020-0170 [doi] PST - ppublish SO - J Neuroendovasc Ther. 2021;15(8):505-516. doi: 10.5797/jnet.oa.2020-0170. Epub 2021 Jan 6.