PMID- 22961908 OWN - NLM STAT- MEDLINE DCOM- 20140220 LR - 20130723 IS - 1522-726X (Electronic) IS - 1522-1946 (Linking) VI - 82 IP - 2 DP - 2013 Aug 1 TI - Glycoprotein IIb/IIIa inhibitors with or without thienopyridine pretreatment improve outcomes after primary percutaneous coronary intervention in high-risk patients with ST elevation myocardial infarction--a meta-regression of randomized controlled trials. PG - 171-81 LID - 10.1002/ccd.24653 [doi] AB - BACKGROUND: Recent studies have casted a doubt on usefulness of routine glycoprotein IIb/IIIA inhibitors (GPI) in patients, pretreated with aspirin and clopidogrel, undergoing primary percutaneous coronary intervention (PCI) for ST elevation myocardial infarction (STEMI). OBJECTIVE: We aimed to investigate the effect of relevant factors, particularly thienopyridine pretreatment, on clinical benefit from GPI in randomized controlled trials (RCT). METHODS: We searched electronic databases for RCT comparing GPI to control in patients with STEMI undergoing primary PCI. Relevant study covariates and clinical outcomes were extracted. A random effect cumulative and subgroup analyses (thienopyridine non-pretreated studies vs. pretreated studies) were performed. A weighted random effect meta-regression to determine the effect of thienopyridine pretreatment, enrollment year, control group mortality, and ischemic time on mortality benefit from GPI use was conducted. RESULTS: Twenty studies (9 non-pretreated, 11 pretreated) with a total of 7,414 patients (3,811 GPI, 3,603 control) were included. GPI use reduces mortality (risk ratio, RR = 0.75 95% confidence interval (CI) 0.57-0.97, P = 0.03), target vessel revascularization (TVR) (RR = 0.63, 95% CI 0.50-0.80, P = 0.0002), but not reinfarction (RR = 0.66, 95% CI 0.44-1.0, P = 0.05) at 30 days. There was no effect of thienopyridine pretreatment on reduction in mortality (P = 0.39), reinfarction (P = 0.46), or TVR (P = 0.95) in subgroup analysis. Meta-regression analyses showed significant effect of control group mortality risk (B = -12.15, P = 0.034) but not of thienopyridine pretreatment, enrollment year or control group ischemic time on mortality reduction from GPI use. CONCLUSION: The benefit from GPI use in primary PCI for STEMI appears to depend on mortality risk, and not on thienopyridine pretreatment. CI - (c) 2013 Wiley Periodicals, Inc. FAU - Sethi, Ankur AU - Sethi A AD - Division of Cardiology, Department of Medicine, Rosalind Franklin University of Medicine and Sciences, North Chicago, Illinois, USA. drankursethi@gmail.com FAU - Bajaj, Anurag AU - Bajaj A FAU - Bahekar, Amol AU - Bahekar A FAU - Bhuriya, Rohit AU - Bhuriya R FAU - Singh, Mukesh AU - Singh M FAU - Ahmed, Aziz AU - Ahmed A FAU - Khosla, Sandeep AU - Khosla S LA - eng PT - Journal Article PT - Meta-Analysis PT - Review DEP - 20130325 PL - United States TA - Catheter Cardiovasc Interv JT - Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions JID - 100884139 RN - 0 (Platelet Aggregation Inhibitors) RN - 0 (Platelet Glycoprotein GPIIb-IIIa Complex) RN - 0 (Pyridines) RN - 0 (thienopyridine) SB - IM CIN - Catheter Cardiovasc Interv. 2013 Aug 1;82(2):182-3. PMID: 23878029 MH - Chi-Square Distribution MH - Drug Therapy, Combination MH - Evidence-Based Medicine MH - Humans MH - Myocardial Infarction/blood/diagnosis/mortality/*therapy MH - Odds Ratio MH - *Percutaneous Coronary Intervention/adverse effects/mortality MH - Platelet Aggregation Inhibitors/adverse effects/*therapeutic use MH - Platelet Glycoprotein GPIIb-IIIa Complex/*antagonists & inhibitors/metabolism MH - Pyridines/adverse effects/*therapeutic use MH - *Randomized Controlled Trials as Topic MH - Recurrence MH - Risk Factors MH - Time Factors MH - Treatment Outcome EDAT- 2012/09/11 06:00 MHDA- 2014/02/22 06:00 CRDT- 2012/09/11 06:00 PHST- 2012/07/06 00:00 [received] PHST- 2012/09/01 00:00 [accepted] PHST- 2012/09/11 06:00 [entrez] PHST- 2012/09/11 06:00 [pubmed] PHST- 2014/02/22 06:00 [medline] AID - 10.1002/ccd.24653 [doi] PST - ppublish SO - Catheter Cardiovasc Interv. 2013 Aug 1;82(2):171-81. doi: 10.1002/ccd.24653. Epub 2013 Mar 25.