Why the study?
Although the incidence of atrioventricular and intraventricular blocks in acute coronary syndromes has decreased in the emergency PCI era, their prognosis remains a matter of debate.
Conduction disturbances such as AV and IV blocks during acute coronary syndromes remain significant predictors of adverse prognosis and increased in-hospital mortality.
Conduction blocks in AMI still signal higher mortality despite lower incidence; confirms prognostic value but leaves open targeted interventions.
Acute coronary syndromes (ACS) might be complicated by atrioventricular (AV) and intraventricular (IV) blocks in a significant number of cases, and often represent a diagnostic and a therapeutic challenge. These conduction disturbances are predictors of adverse prognosis, with complete AV blocks presenting the most severe outcomes, showing an increased in-hospital mortality. With the advent of emergency percutaneous coronary intervention (PCI) and the end of the thrombolysis era, the incidence of both AV and IV blocks has surely decreased, but their prognosis in this setting still remains a matter of debate. The aim of this review is to evaluate the current knowledge on AV and IV blocks in the AMI setting with or without ST segment elevation.
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Schiavone et al. (2021) studied this question.
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