Cardiac memory presenting as ST elevations following premature ventricular complex ablation

Abstract

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ST‐segment elevation during arrhythmia ablations—A review

“…However, there are few reports of CM that can present as STE. A case of STE in the anterior leads after ablation of premature ventricular contractions (PVCs) near the aortomitral continuity was reported recently 20 . The STE persisted for few hours and the patient was completely asymptomatic and the coronary angiography revealed a normal coronary anatomy without any stenosis, vasospasm, or air embolism (Figure 3).…”

“…ST segment elevation can result from other mechanisms besides injury to the coronary artery or hypoperfusion. Cardiac memory (CM) is a known phenomenon which can lead to electrocardiographic changes that can mimic ischemic changes 20 . However, there are few reports of CM that can present as STE.…”

“…The STE persisted for few hours and the patient was completely asymptomatic and the coronary angiography revealed a normal coronary anatomy without any stenosis, vasospasm, or air embolism (Figure 3). 20 The patient initially presented with bigeminy and the PVCs were discovered to originate in the area of the aortomitral continuity (Figure 4). 20 Once the bigeminy was abolished the CM presented as STE 20 …”

“… 20 The patient initially presented with bigeminy and the PVCs were discovered to originate in the area of the aortomitral continuity (Figure 4). 20 Once the bigeminy was abolished the CM presented as STE 20 …”

“…Physicians also need to be careful while performing ablations in patients with known coronary artery disease as these patients are more susceptible to have an adverse outcomes in case coronary artery injury occurs. There are times when these STE are observed when the procedure is completed, such as in patients who developed these changes following administration of protamine 9 and in a case of CM following ablation of PVC 20 . In such situations, a cardiac catheterization may be still warranted based on the clinical situation and physician's clinical judgment.…”