Abstract | OBJECTIVE: SETTING: Tertiary care single centre registry. PARTICIPANTS: 1008 consecutive PCI patients with stent implantation, without exclusion criteria. INTERVENTION: Peri-interventional individualisation of DAPT, guided by multiple electrode aggregometry (MEA), to overcome high on-treatment platelet reactivity (HPR) to ADP-induced (≥50 U) and arachidonic acid (AA)-induced aggregation (>35 U). OUTCOME MEASURES: RESULTS: 53% of patients presented with acute coronary syndrome (9% STEMI, 44% non-ST-elevation). HPR to ADP after 600 mg clopidogrel loading occurred in 30% of patients (73±19 U vs 28±11 U; p<0.001) and was treated by prasugrel or ticagrelor (73%), or clopidogrel (27%) reloading (22±12 U; p<0.001). HPR to ADP after prasugrel loading occurred in 2% of patients (82±26 U vs 19±10 U; p<0.001) and was treated with ticagrelor (34±15 U; p=0.02). HPR to AA occurred in 9% of patients with a significant higher proportion in patients with HPR to ADP (22% vs 4%, p<0.001) and was treated with aspirin reloading. Definite ST occurred in 0.09% of patients (n=1); probable ST, myocardial infarction, cardiovascular death and MACE occurred in 0.19% (n=2), 0.09% (n=1) and 1.8% (n=18) of patients. TIMI major and minor bleeding did not differ between patients without HPR and individualised patients (2.6% for both). CONCLUSIONS: Individualisation of DAPT with MEA minimises early thrombotic events in an all-comers PCI population to an unreported degree without increasing bleeding. A randomised multicentre trial utilising MEA seems warranted. TRIAL REGISTRATION NUMBER: http://www.clinicaltrials.gov; NCT01515345.
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Authors | Günter Christ, Jolanta M Siller-Matula, Marcel Francesconi, Cornelia Dechant, Katharina Grohs, Andrea Podczeck-Schweighofer |
Journal | BMJ open
(BMJ Open)
Vol. 4
Issue 10
Pg. e005781
(Oct 31 2014)
ISSN: 2044-6055 [Electronic] England |
PMID | 25361837
(Publication Type: Journal Article, Observational Study, Research Support, Non-U.S. Gov't)
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Copyright | Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions. |
Chemical References |
- Piperazines
- Platelet Aggregation Inhibitors
- Thiophenes
- Clopidogrel
- Prasugrel Hydrochloride
- Ticagrelor
- Adenosine
- Ticlopidine
- Aspirin
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Topics |
- Acute Coronary Syndrome
(blood, therapy)
- Adenosine
(analogs & derivatives, therapeutic use)
- Aged
- Angioplasty, Balloon, Coronary
(methods)
- Aspirin
(therapeutic use)
- Blood Platelets
- Clopidogrel
- Cohort Studies
- Coronary Artery Disease
(blood, therapy)
- Female
- Graft Occlusion, Vascular
(prevention & control)
- Humans
- Male
- Middle Aged
- Myocardial Infarction
(blood, therapy)
- Percutaneous Coronary Intervention
(methods)
- Piperazines
(therapeutic use)
- Platelet Aggregation
- Platelet Aggregation Inhibitors
(therapeutic use)
- Prasugrel Hydrochloride
- Precision Medicine
(methods)
- Prospective Studies
- Registries
- Stents
- Thiophenes
(therapeutic use)
- Ticagrelor
- Ticlopidine
(analogs & derivatives, therapeutic use)
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