What does this research mean for the field?

Elective direct-current cardioversion can induce transient ST-segment elevation without biochemical or scintigraphic evidence of permanent myocardial damage. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

January 1, 1981CirculationOpen Access

ST-segment elevation with elective DC cardioversion.

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Why the study?

Does elective direct-current cardioversion cause myocardial damage in patients with atrial fibrillation?

Structured PICO

Does elective direct-current cardioversion cause myocardial damage in patients with atrial fibrillation?

Population

3 patients with atrial fibrillation

Intervention

Elective direct-current cardioversion

Outcome

Transient ST-segment elevation and myocardial damage (assessed by LDH, CPK isoenzymes, and myocardial scintigraphy)surrogate

Elective DC cardioversion can cause transient ST-segment elevation without biomarker or scintigraphic evidence of myocardial damage.

Implication

Transient ST elevation after DC cardioversion may not indicate injury; leaves open whether routine monitoring is warranted.

Abstract

Elective direct-current cardioversion was performed in three patients with atrial fibrillation. Transient ST-segment elevation on monitored leads, lasting seconds, was recorded after cardioversion in all three patients. LDH, CPK isoenzymes, and myocardial scintigraphy did not reveal myocardial damage. Elective cardioversion should be performed with caution, for the potential for cardiac damage cannot be ignored.