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37 Incidence and one year outcome of periprocedural myocardial infarction following cardiac surgery: are the universal definition and scai criteria fit for purpose?

Heart (British Cardiac Society), 2021-06, Vol.107 (Suppl 1), p.A32-A33 [Peer Reviewed Journal]

Author(s) (or their employer(s)) 2021. No commercial re-use. See rights and permissions. Published by BMJ. ;2021 Author(s) (or their employer(s)) 2021. No commercial re-use. See rights and permissions. Published by BMJ. ;ISSN: 1355-6037 ;EISSN: 1468-201X ;DOI: 10.1136/heartjnl-2021-BCS.37

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  • Title:
    37 Incidence and one year outcome of periprocedural myocardial infarction following cardiac surgery: are the universal definition and scai criteria fit for purpose?
  • Author: Hinton, Jonathan ; Augustine, Maclyn ; Gabara, Lavinia ; Mariathas, Mark ; Allan, Rick ; Borca, Florina ; Nicholas, Zoe ; Ikwoube, John ; Gillett, Neil ; Kwok, Chun Shing ; Cook, Paul ; Grocott, Michael ; Mamas, Mamas ; Curzen, Nick
  • Subjects: Heart attacks ; Heart surgery ; Mortality
  • Is Part Of: Heart (British Cardiac Society), 2021-06, Vol.107 (Suppl 1), p.A32-A33
  • Description: IntroductionThe diagnosis and clinical implication of periprocedural myocardial infarction (PPMI) following coronary artery bypass grafting (CABG) is contentious, especially given its importance in the interpretation of trial data. Two accepted definitions of PPMI yield discrepant results. Little is known about the association between the diagnosis of PPMI, using high sensitivity troponin (hs-cTn), and medium term mortality in patients who undergo CABG, either alone or in conjunction with another procedure.MethodConsecutive patients admitted to a cardiothoracic critical care unit (CCCU) over a six month period following open cardiac surgery had hs-cTnI assay performed on admission and every day for forty-eight hours, regardless of whether there was a clinical indication. Patients were categorised as PPMI using both the Universal Definition of MI (UDMI) and Society of Cardiovascular Angiography and Interventions (SCAI) criteria. Comorbidity data, surgical details and clinical progress in CCCU were recorded. One year mortality data were obtained from NHS Digital.ResultsThere were 245 CABG patients, of whom 20.4% met criteria for UDMI PPMI and 87.6% for SCAI UDMI. The diagnosis of UDMI PPMI was independently associated with one year mortality (hazard ratio 4.175 (95% confidence interval 1.281 – 13.608)), whereas there was no association between SCAI PPMI and one year mortality (figure 1). Of the 243 patients who had non CABG cardiac surgery, 11.4% met criteria for UDMI PPMI and 85.2% for SCAI PPMI but neither was associated with one year mortality.Abstract 37 Figure 1Kaplan Meier curves of one year mortality for PPMI; Panel A UDMI PPMI (p=0.002 (log-rank)); Panal B SCAI PPMI (p=0.156 (log-rank))ConclusionsThe incidence of SCAI PPMI in a real world cohort of cardiac surgery patients is so high as to be of limited clinical value. By contrast, a diagnosis of UDMI PPMI post CABG is independently associated with one year mortality, so may have clinical utility.Conflict of InterestBeckman Coulter provided the assays used in my research but had no other role in the studies
  • Publisher: London: BMJ Publishing Group LTD
  • Language: English
  • Identifier: ISSN: 1355-6037
    EISSN: 1468-201X
    DOI: 10.1136/heartjnl-2021-BCS.37
  • Source: ProQuest Central
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