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dc.contributor.authorAmbrosio, Giuseppe
dc.contributor.authorDel Pinto, Maurizio
dc.contributor.authorTritto, Isabella
dc.contributor.authorAgnelli, Giancarlo
dc.contributor.authorBentivoglio, Maurizio
dc.contributor.authorZuchi, Cinzia
dc.contributor.authorAnderson, Frederick A. Jr.
dc.contributor.authorGore, Joel M.
dc.contributor.authorLopez-Sendon, Jose
dc.contributor.authorWyman, Allison
dc.contributor.authorKennelly, Brian M.
dc.contributor.authorFox, Keith A. A.
dc.date2022-08-11T08:08:08.000
dc.date.accessioned2022-08-23T15:43:54Z
dc.date.available2022-08-23T15:43:54Z
dc.date.issued2010-02-12
dc.date.submitted2011-09-23
dc.identifier.citationEur Heart J. 2010 Feb;31(4):430-8. Epub 2009 Nov 10. <a href="http://dx.doi.org/10.1093/eurheartj/ehp457">Link to article on publisher's site</a>
dc.identifier.issn0195-668X (Linking)
dc.identifier.doi10.1093/eurheartj/ehp457
dc.identifier.pmid19903682
dc.identifier.urihttp://hdl.handle.net/20.500.14038/27198
dc.description.abstractAIMS: Brief episode(s) of ischaemia may increase cardiac tolerance to a subsequent major ischaemic insult ('preconditioning'). Nitrates can pharmacologically mimic ischaemic preconditioning in animals. In this study, we investigated whether antecedent nitrate therapy affords protection toward acute ischaemic events using data from the Global Registry of Acute Coronary Events. METHODS AND RESULTS: The dataset comprised 52,693 patients from 123 centres in 14 countries: 42,138 (80%) were nitrate-naive and 10,555 (20%) were on chronic nitrates at admission. In nitrate-naive patients, admission diagnosis was ST-segment elevation myocardial infarction (STEMI) in 41%, whereas 59% presented with non-ST-segment elevation acute coronary syndrome (NSTE-ACS). In contrast, only 18% nitrate users showed STEMI, whereas 82% presented with NSTE-ACS. Thus, among nitrate users clinical presentation was tilted toward NSTE-ACS by more than four-fold, STEMI occurring in less than one of five patients (P < 0.0001). After adjustment (age, sex, medical history, prior therapy, revascularization, previous angina), chronic nitrate use remained independent predictor of NSTE-ACS (OR 1.36; 95% CI 1.26-1.46; P < 0.0001). Furthermore, regardless of presentation, within both STEMI and NSTEMI populations, antecedent nitrate use was associated with significantly lower levels of CK-MB and troponin (P < 0.0001 for all). CONCLUSION: In this large multinational registry, chronic nitrate use was associated with a shift away from STEMI in favour of NSTE-ACS and with less release of markers of cardiac necrosis. These findings suggest that in nitrate users acute coronary events may develop to a smaller extent. Randomized, placebo-controlled trials are warranted to establish whether nitrate therapy may pharmacologically precondition the heart toward ischaemic episodes.
dc.language.isoen_US
dc.relation<a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&list_uids=19903682&dopt=Abstract">Link to Article in PubMed</a>
dc.relation.urlhttp://dx.doi.org/10.1093/eurheartj/ehp457
dc.subjectAcute Coronary Syndrome
dc.subjectAdolescent
dc.subjectAdult
dc.subjectAged
dc.subjectCardiotonic Agents
dc.subjectFemale
dc.subjectHospital Mortality
dc.subjectHumans
dc.subjectIschemic Preconditioning, Myocardial
dc.subjectMale
dc.subjectMiddle Aged
dc.subjectMuscle Cells
dc.subjectMyocardial Infarction
dc.subjectNecrosis
dc.subjectNitrates
dc.subjectProspective Studies
dc.subjectTreatment Outcome
dc.subjectYoung Adult
dc.subjectHealth Services Research
dc.titleChronic nitrate therapy is associated with different presentation and evolution of acute coronary syndromes: insights from 52,693 patients in the Global Registry of Acute Coronary Events
dc.typeArticle
dc.source.journaltitleEuropean heart journal
dc.source.volume31
dc.source.issue4
dc.identifier.legacycoverpagehttps://escholarship.umassmed.edu/cor_grace/14
dc.identifier.contextkey2254933
html.description.abstract<p>AIMS: Brief episode(s) of ischaemia may increase cardiac tolerance to a subsequent major ischaemic insult ('preconditioning'). Nitrates can pharmacologically mimic ischaemic preconditioning in animals. In this study, we investigated whether antecedent nitrate therapy affords protection toward acute ischaemic events using data from the Global Registry of Acute Coronary Events.</p> <p>METHODS AND RESULTS: The dataset comprised 52,693 patients from 123 centres in 14 countries: 42,138 (80%) were nitrate-naive and 10,555 (20%) were on chronic nitrates at admission. In nitrate-naive patients, admission diagnosis was ST-segment elevation myocardial infarction (STEMI) in 41%, whereas 59% presented with non-ST-segment elevation acute coronary syndrome (NSTE-ACS). In contrast, only 18% nitrate users showed STEMI, whereas 82% presented with NSTE-ACS. Thus, among nitrate users clinical presentation was tilted toward NSTE-ACS by more than four-fold, STEMI occurring in less than one of five patients (P < 0.0001). After adjustment (age, sex, medical history, prior therapy, revascularization, previous angina), chronic nitrate use remained independent predictor of NSTE-ACS (OR 1.36; 95% CI 1.26-1.46; P < 0.0001). Furthermore, regardless of presentation, within both STEMI and NSTEMI populations, antecedent nitrate use was associated with significantly lower levels of CK-MB and troponin (P < 0.0001 for all).</p> <p>CONCLUSION: In this large multinational registry, chronic nitrate use was associated with a shift away from STEMI in favour of NSTE-ACS and with less release of markers of cardiac necrosis. These findings suggest that in nitrate users acute coronary events may develop to a smaller extent. Randomized, placebo-controlled trials are warranted to establish whether nitrate therapy may pharmacologically precondition the heart toward ischaemic episodes.</p>
dc.identifier.submissionpathcor_grace/14
dc.contributor.departmentDepartment of Medicine, Division of Cardiovascular Medicine
dc.contributor.departmentCenter for Outcomes Research
dc.source.pages430-8


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