Piccolo R, L Gu Y L, Iversen A Z, Dominguez-Rodriguez A, De Smet B J G L, Mahmoud K D, Eitel I, Abreu-Gonzalez P, Thiele H, Piscione F. Clinical impact of intracoronary abciximab in patients undergoing primary percutaneous coronary intervention: an individual patient-data pooled analysis of randomised studies. Heart 2012 May 24 [Epub ahead of print] doi:10.1136/heartjnl-2011-301101. The findings in this paper are unreliable because it fails to address the data from AIDA STEMI [Lancet 2012;379:923-31], to which the authors had access prior to submission and which contraindicate the paper's conclusion by showing no advantage for intracoronary administration. The authors were asked to update the paper to include the AIDA STEMI findings but, with the exception of Dr Olivier F Bertrand, they declined. Owing to this difference of opinion, Dr Bertrand asked to be removed from the list of authors, a request to which we acceded. Under these circumstances, the matter was considered by COPE who recommended retraction and this paper has now been withdrawn from Heart.