File(s) under permanent embargo
Long-term prognostic significance of periprocedural myonecrosis in patients with stable coronary artery disease undergoing elective percutaneous coronary intervention
journal contribution
posted on 2016-08-01, 00:00 authored by Michael MokMichael Mok, M B Yudi, C Y Goh, D J Clark, J Ramchand, A Al-Fiadh, N Jones, D Fernando, K Lu, O FarouqueThe clinical significance of myonecrosis, measured by cardiac troponin, in the context of percutaneous coronary intervention (PCI) is a matter of ongoing debate. The lack of substantial scientific evidence in this domain is apparent from the ever-changing definitions of periprocedural myocardial infarction and the uncertainty regarding its prognostic relevance.
Myonecrosis due to PCI is common and occurs in up to 40% of cases, depending on the definition and biomarker used5. In the Third Universal Definition of Myocardial Infarction (MI), the cutoff cardiac troponin level to diagnose myonecrosis increased from 3 to 5 times the upper reference limit (URL). In contrast to previous definitions, troponin elevation needs to be associated with clinical, electrocardiographic, angiographic or cardiac imagingrelated evidence of ischaemia to be classified as a periprocedural MI, or type 4a MI. However, the occurrence of post-PCI chest pain without troponin elevation and troponin elevation without chest pain, angiographic complications or other signs of ischaemia is well documented. The Society of Cardiovascular Angiography and Interventions (SCAI) has proposed an alternative definition of “clinically significant myocardial infarction” requiring troponin levels of ≥70x upper limit of normal (ULN) or ≥35x ULN with electrocardiographic evidence of infarction.
Myonecrosis due to PCI is common and occurs in up to 40% of cases, depending on the definition and biomarker used5. In the Third Universal Definition of Myocardial Infarction (MI), the cutoff cardiac troponin level to diagnose myonecrosis increased from 3 to 5 times the upper reference limit (URL). In contrast to previous definitions, troponin elevation needs to be associated with clinical, electrocardiographic, angiographic or cardiac imagingrelated evidence of ischaemia to be classified as a periprocedural MI, or type 4a MI. However, the occurrence of post-PCI chest pain without troponin elevation and troponin elevation without chest pain, angiographic complications or other signs of ischaemia is well documented. The Society of Cardiovascular Angiography and Interventions (SCAI) has proposed an alternative definition of “clinically significant myocardial infarction” requiring troponin levels of ≥70x upper limit of normal (ULN) or ≥35x ULN with electrocardiographic evidence of infarction.
History
Journal
Asia interventionVolume
2Pagination
121 - 128Publisher
Europa Digital & PublishingLocation
Toulouse, FrancePublisher DOI
ISSN
2491-0929Language
engPublication classification
C Journal article; C1.1 Refereed article in a scholarly journalCopyright notice
2016, Europa Digital & PublishingUsage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC