ST‐segment elevation on intracoronary electrocardiogram after percutaneous coronary intervention is associated with worse outcome in patients with non‐ST‐segment elevation myocardial infarction

Abstract

The present study suggests that presence of IC-ECG STE might help identify high-risk NSTEMI patients with greater myocardial injury leading to adverse cardiac events.

Diagnostic Performance and Pressure Stability of a Novel Myocardial Ischemic Diagnostic Index ― The Intracoronary-Electrocardiogram-Triggered Distal Pressure/Aortic Pressure Ratio ―

“…28, 29 However, patients with ischemic heart disease often have myocardial conduction delay. 30 IC-ECG recording is more sensitive and reliable for detecting regional myocardial ischemia than standard S-ECG recording, 31,32 and is useful for predicting myocardial infarction-related microvascular obstruction 33 and postprocedural myocardial injury in angina pectoris. 34 Ikenaga et al reported that the estimation of microvascular perfusion from IC-ECG was consistent with the characteristics of plaque by Fourier-domain optical coherence tomography.…”

Prognostic and diagnostic accuracy of intracoronary electrocardiogram recorded during percutaneous coronary intervention: a meta-analysis

“…In the subgroup of ST-segment elevation, there were heterogeneities between two studies. In Hishikari’s study, 7 ST-segment elevation recorded by IC-ECG was associated with lower EF during follow-up in NSTEMI patients, while in Yajima’s study, 9 the result was different in anterior myocardial infarction patients. The possible explanation might be the timing of recording IC-ECG.…”

“…There were no heterogeneities (I 2 =0%, p=0.525). The inclusion criteria of ST-segment elevation subgroup were patients with NSTEMI (Hishikari et al 7 ) or anterior myocardial infarction (Yajima et al 9 ). The pooled WMD was 0.86, with 95%CIs −8.55 to 10.26.…”

“…In some studies, the ST-segment elevation or resolution recorded by IC-ECG during or after PCI procedures have been shown to be sensitive and reliable for detecting myocardial viability, local myocardial ischaemia or microvascular obstruction. [5][6][7][8][9][10][11][12][13][14][15][16] But IC-ECG is neither widely used during PCI nor recommended in guidelines. This up-to-date meta-analysis of published studies was conducted to evaluate the prognostic and diagnostic accuracy of IC-ECG recorded during PCI.…”

Desnível do segmento ST ao eletrocardiograma intracoronário como preditor de infarto periprocedimento na intervenção coronária percutânea em doença arterial coronária estável

“…40,65,112,113 64,65 Os autores que discorreram sobre a relação entre desnivelamento do segmento ST intracoronário e marcadores de injúria miocárdica pós ICP, não descreveram objetivamente a gravidade anatômica da doença coronária entre os pacientes incluidos em seus trabalhos, enviesando a comparação entre seus resultados e os apresentados nesta pesquisa. 91,99,106,115 Diferente dos nossos resultados, Uetani et al 99 O(A) senhor(a) foi internado(a) neste hospital por ter sido acometido por doença arterial coronária, ou seja, por um quadro de angina estável ou por ter exames alterados, apontando obstrução importante das artérias do coração. Por essa razão, você necessita ser submetido(a) a uma angioplastia coronária, com implante de stent.…”