What does this research mean for the field?

Coronary QS waves in myocardial infarction may represent negative potentials transmitted from viable intramural muscle and the cavity, while coronary QR waves indicate transmural infarcts with mixed viable and dead tissue rather than purely subendocardial lesions. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

January 1, 1953CirculationOpen Access

Intramural Depolarization Potentials in Myocardial Infarction

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Why the study?

What is the electrophysiological basis of coronary QS and QR waves in myocardial infarction?

Structured PICO

What is the electrophysiological basis of coronary QS and QR waves in myocardial infarction?

Population

41 animals with coronary artery occlusion and normal hearts

Intervention

Recording of potentials at multiple depths within the ventricular wall using small intramural electrodes

Comparator

Normal hearts

Outcome

Electrocardiographic and histologic correlations of coronary QS and QR wavessurrogate

The study provides electrophysiological evidence that coronary QS and QR waves in myocardial infarction reflect specific transmural distributions of viable and dead tissue.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

May inform ECG interpretation in experimental MI; leaves open human validation for infarct localization.

Cite This Study

Prinzmetal et al. (1953) studied this question.

synapsesocial.com/papers/6a19daf760e90a7f5feabe6b https://doi.org/10.1161/01.cir.7.1.1

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Intramural Depolarization Potentials in Myocardial Infarction

Structured PICO

Discussion

Implication

Cite This Study

Intramural Depolarization Potentials in Myocardial Infarction

Structured PICO

Discussion

Implication

Cite This Study

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