PMID- 31324730 OWN - NLM STAT- MEDLINE DCOM- 20200603 LR - 20200603 IS - 1469-0756 (Electronic) IS - 0032-5473 (Linking) VI - 96 IP - 1131 DP - 2020 Jan TI - Incidence of dual antiplatelet therapy interruption within 1 year after primary percutaneous coronary intervention in patients with acute ST elevation myocardial infarction. PG - 9-13 LID - 10.1136/postgradmedj-2019-136760 [doi] AB - BACKGROUND: After primary percutaneous coronary intervention (PPCI) in patients with acute ST elevation myocardial infarction (STEMI), dual antiplatelet therapy (DAPT) is recommended to continue for 1 year. Occasionally, DAPT interruption may be required due to bleeding issues or unplanned surgical procedures. OBJECTIVE: To systematically evaluate the incidence of DAPT interruption within 1 year after PPCI. METHODS AND RESULTS: This was a single-centre, retrospective registry study. Consecutive patients with STEMI who underwent PPCI from 2013 to 2017 (N=538) were recruited into the analysis. The primary outcome was the incidence of interruption of DAPT within 1 year from the index PPCI. Secondary outcomes included incidence of bleeding in 1 year and prevalence of high bleeding risk (HBR) criteria at index presentation. Within 1 year, 17.1% (84/490) of post-PPCI survivors needed DAPT interruption and 7.1% (35/490) had major bleeding (Bleeding Academic Research Consortium type 3 or 5). At index presentation, HBR criteria were present in 36.1% (194/538) of patients. On univariate analysis, age, female gender, anaemia, anticoagulation, diabetes, hypertension and being a non-smoker were associated with DAPT interruption. On multivariate analysis, age was the only independent factor to predict DAPT interruption. CONCLUSION: DAPT interruption was not uncommon after PPCI in patients with STEMI particularly in the elderly. This has implication on stent selection during PPCI, and further studies are required to investigate which type of stent may best suit our real-life patients with STEMI. CI - (c) Author(s) (or their employer(s)) 2020. No commercial re-use. See rights and permissions. Published by BMJ. FAU - Tam, Chor Cheung AU - Tam CC AUID- ORCID: 0000-0003-4159-7635 AD - Medicine, University of Hong Kong, Hong Kong, China frankie.tamcc@gmail.com. FAU - Lee, Jeffrey AU - Lee J AD - Medicine, University of Hong Kong, Hong Kong, China. FAU - Chan, Ki Wan AU - Chan KW AD - Medicine, University of Hong Kong, Hong Kong, China. FAU - Lam, Cheung Chi AU - Lam CC AD - Medicine, University of Hong Kong, Hong Kong, China. FAU - Wong, Yiu Tung AU - Wong YT AD - Medicine, University of Hong Kong, Hong Kong, China. FAU - Chan, Eric AU - Chan E AD - Medicine, University of Hong Kong, Hong Kong, China. FAU - Sze, Michael AU - Sze M AD - Medicine, University of Hong Kong, Hong Kong, China. FAU - Lam, Yui Ming AU - Lam YM AD - Medicine, University of Hong Kong, Hong Kong, China. FAU - Chan, Carmen AU - Chan C AD - Medicine, University of Hong Kong, Hong Kong, China. FAU - Tse, Hung Fat AU - Tse HF AD - Medicine, University of Hong Kong, Hong Kong, China. FAU - Siu, Chung Wah AU - Siu CW AD - Medicine, University of Hong Kong, Hong Kong, China. LA - eng PT - Journal Article DEP - 20190719 PL - England TA - Postgrad Med J JT - Postgraduate medical journal JID - 0234135 SB - IM MH - *Dual Anti-Platelet Therapy/adverse effects/methods MH - Female MH - *Hemorrhage/chemically induced/prevention & control/therapy MH - Humans MH - Incidence MH - Male MH - Middle Aged MH - Patient Selection MH - *Percutaneous Coronary Intervention/instrumentation/methods MH - *Postoperative Complications/etiology/prevention & control MH - Risk Factors MH - ST Elevation Myocardial Infarction/*surgery MH - Stents/standards MH - Surgical Procedures, Operative/adverse effects/methods MH - Withholding Treatment/statistics & numerical data OTO - NOTNLM OT - coronary intervention OT - myocardial infarction COIS- Competing interests: None declared. EDAT- 2019/07/22 06:00 MHDA- 2020/06/04 06:00 CRDT- 2019/07/21 06:00 PHST- 2019/05/10 00:00 [received] PHST- 2019/07/02 00:00 [revised] PHST- 2019/07/09 00:00 [accepted] PHST- 2019/07/22 06:00 [pubmed] PHST- 2020/06/04 06:00 [medline] PHST- 2019/07/21 06:00 [entrez] AID - postgradmedj-2019-136760 [pii] AID - 10.1136/postgradmedj-2019-136760 [doi] PST - ppublish SO - Postgrad Med J. 2020 Jan;96(1131):9-13. doi: 10.1136/postgradmedj-2019-136760. Epub 2019 Jul 19.