{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T16:55:16Z","timestamp":1790182516452,"version":"4.1.0"},"reference-count":31,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation"],"published-print":{"date-parts":[[2026,1,27]]},"abstract":"<jats:sec>\n                    <jats:title>BACKGROUND:<\/jats:title>\n                    <jats:p>The universal definition of percutaneous coronary intervention (PCI)\u2013related myocardial infarction (MI) has been substantially updated over the years, including an increase in the biomarker threshold (from 3 to 5 times the upper reference limit) and the introduction of ancillary criteria such as ischemic symptoms and electrocardiographic or angiographic complication. The impact of these changes in patients with acute coronary syndrome (ACS) remains incompletely understood. The objective of this study was to compare prognostic implications of evolving universal definitions of PCI-MI in a large cohort of patients with ACS from the MATRIX trial (Minimizing Adverse Haemorrhagic Events by Transradial Access Site and Systemic Implementation of AngioX).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS:<\/jats:title>\n                    <jats:p>Among 6724 patients undergoing PCI in the MATRIX trial, PCI-MI was prospectively adjudicated by the second, third and fourth universal definition of MI (UDMI). The 2 co-primary end points were all-cause and cardiovascular death (from 24 hours to 1 year after PCI) in patients with non\u2013ST-segment\u2013elevation ACS. Hazard ratios and 95% CIs were generated for primary and secondary end points with the use of Cox proportional hazards time-to-event analyses for each MI definition.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS:<\/jats:title>\n                    <jats:p>\n                      PCI-MI occurred in 590 patients (9%) with the second UDMI, 193 (3%) with the third UDMI, and 182 (3%) with the fourth UDMI applied in the overall ACS population. Among patients with non\u2013ST-segment\u2013elevation ACS, the corresponding figures were 15%, 5%, and 5%. Only PCI-MI defined by the fourth UDMI in patients with non\u2013ST-segment\u2013elevation ACS was associated with increased risks of all-cause (hazard ratio, 2.08 [95% CI, 1.00\u20134.30];\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      =0.048) and cardiovascular (hazard ratio, 2.62 [95% CI, 1.03\u20136.65];\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      =0.043) death. In patients with ST-segment\u2013elevation myocardial infarction, PCI-MI was uncommon (1% to 4% depending on the working definition) and was not associated with increased mortality. In the absence of objective ancillary criteria (electrocardiographic and angiographic complications), isolated troponin elevations up to 20 times the upper reference limit were not associated with increased mortality risk.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS:<\/jats:title>\n                    <jats:p>PCI-MI defined according to the fourth UDMI was associated with increased risks of 1-year mortality only in patients with non\u2013ST-segment\u2013elevation ACS. These data support the evolution of the universal definition of PCI-MI.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>REGISTRATION:<\/jats:title>\n                    <jats:p>\n                      URL:\n                      <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/www.clinicaltrials.gov\">http:\/\/www.clinicaltrials.gov<\/jats:ext-link>\n                      ; Unique identifier: NCT01433627.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1161\/circulationaha.125.077174","type":"journal-article","created":{"date-parts":[[2026,1,6]],"date-time":"2026-01-06T10:00:36Z","timestamp":1767693636000},"page":"230-242","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":6,"title":["Prognostic Implications of Evolving Universal Definitions of Periprocedural Myocardial Infarction in Patients With Acute Coronary Syndrome"],"prefix":"10.1161","volume":"153","clinical-trial-number":[{"clinical-trial-number":"nct01433627","registry":"10.18810\/clinical-trials-gov"}],"author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4800-6132","authenticated-orcid":true,"given":"Sergio","family":"Leonardi","sequence":"first","affiliation":[{"name":"University of Pavia and Fondazione IRCCS Policlinico San Matteo, Italy (S.L.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio","family":"Landi","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Lugano, Switzerland (A.L., E.F., A.M., M.V.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1351-6749","authenticated-orcid":true,"given":"Andrea","family":"Zito","sequence":"additional","affiliation":[{"name":"Fondazione Poliambulanza Istituto Ospedaliero, Brescia, Italy (A.Z.)."},{"name":"Department of Cardiovascular and Pulmonary Sciences, Catholic University of the Sacred Heart, Rome, Italy (A.Z.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mattia","family":"Branca","sequence":"additional","affiliation":[{"name":"Department of Clinical Research, University of Bern, Switzerland (M.B., D.H.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Enrico","family":"Frigoli","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Lugano, Switzerland (A.L., E.F., A.M., M.V.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5552-6382","authenticated-orcid":true,"given":"Giuseppe","family":"Ando\u2019","sequence":"additional","affiliation":[{"name":"Azienda Ospedaliera Universitaria Policlinico \u201cGaetano Martino,\u201d University of Messina, Italy (G.A.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2105-8186","authenticated-orcid":true,"given":"Carlo","family":"Briguori","sequence":"additional","affiliation":[{"name":"Interventional Cardiology Unit, Mediterranea Cardiocentro, Naples, Italy (C.B.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5018-830X","authenticated-orcid":true,"given":"Paolo","family":"Calabro","sequence":"additional","affiliation":[{"name":"Division of Cardiology, \u201cSant\u2019Anna e San Sebastiano\u201d Hospital, Caserta, Italy (P.C.)."},{"name":"Department of Translational Medicine, University of Campania \u201cLuigi Vanvitelli,\u201d Caserta, Italy (P.C.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Gagnor","sequence":"additional","affiliation":[{"name":"Cardiology Department, Maria Vittoria Hospital, Turin, Italy (A.G.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roberto","family":"Garbo","sequence":"additional","affiliation":[{"name":"Maria Pia Hospital, GVM Care &amp; Research, Turin, Italy (R.G.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8766-7945","authenticated-orcid":true,"given":"Dik","family":"Heg","sequence":"additional","affiliation":[{"name":"Department of Clinical Research, University of Bern, Switzerland (M.B., D.H.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ugo","family":"Limbruno","sequence":"additional","affiliation":[{"name":"Cardiology Department, Misericordia Hospital, Grosseto, Italy (U.L.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Milzi","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Lugano, Switzerland (A.L., E.F., A.M., M.V.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3875-8621","authenticated-orcid":true,"given":"Elmir","family":"Omerovic","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden (E.O.)."},{"name":"Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Sweden (E.O.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Filippo","family":"Russo","sequence":"additional","affiliation":[{"name":"Interventional Cardiology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy (F.R.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2316-3705","authenticated-orcid":true,"given":"Manel","family":"Sabat\u00e9","sequence":"additional","affiliation":[{"name":"Interventional Cardiology Department, Cardiovascular Institute, Institut d\u2019Investigacions Biom\u00e8diques August Pi I Sunyer, CIBER-CV, Hospital Cl\u00ednic de Barcelona, Spain (M.S.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7575-6118","authenticated-orcid":true,"given":"Andrea","family":"Santarelli","sequence":"additional","affiliation":[{"name":"Cardiology Unit, Bufalini Hospital, Cesena, Italy (A.S.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gennaro","family":"Sardella","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Sciences, Policlinico Umberto I, Sapienza University of Rome, Italy (G.S.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paolo","family":"Tosi","sequence":"additional","affiliation":[{"name":"IRCCS Ospedale Sacro Cuore Don Calabria, Negrar, Verona, Italy (P.T.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2344-7564","authenticated-orcid":true,"given":"Arnoud W.J.","family":"Van\u2019t 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