The negative P wave in inferior leads is shallow when the retrograde impulse from the ventricle spreads up the anterior interatrial septum while it is deep when the retrograde impulse propagates up the posterior interatrial septum-Report of three case.

Q: What does this research mean for the field?

The negative P wave in inferior leads is deeper when the retrograde impulse propagates up the posterior interatrial septum compared to when it spreads up the anterior interatrial septum, which can aid in determining ablation sites. Novelty: ClaimNovelty.CONFIRMATORY. Consensus alignment: ConsensusAlignment.NEUTRAL.

Katsuhiko Motokawa; Fumio Suzuki; Kohichi Asami; Hidenobu Ashikawa; Tomoko Terai; Kohji Azegami; Naoko Ishihara; Kazushi Tanaka; Kenzo Hirao; Tokuhiro Kawara; Kazumasa Hiejima

doi:10.5105/jse.15.720

January 1, 1995Japanese Journal of ElectrocardiologyOpen Access

The negative P wave in inferior leads is shallow when the retrograde impulse from the ventricle spreads up the anterior interatrial septum while it is deep when the retrograde impulse propagates up the posterior interatrial septum-Report of three case.

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Why the study?

Does the retrograde impulse pathway (anterior vs. posterior interatrial septum) affect the depth of negative P waves in inferior leads in patients with long RP tachycardia?

Structured PICO

Does the retrograde impulse pathway (anterior vs. posterior interatrial septum) affect the depth of negative P waves in inferior leads in patients with long RP tachycardia?

P

Population

3 female patients (ages 52, 58, 66) with long RP tachycardia who exhibited two types of negative P waves in the same patient, selected from 812 patients who underwent electrophysiological study.

I

Intervention

Observation of retrograde P wave depth during electrophysiological study (EPS) when the retrograde impulse propagates up the posterior interatrial septum.

C

Comparator

Observation of retrograde P wave depth when the retrograde impulse propagates up the anterior interatrial septum.

O

Outcome

Depth of retrograde P waves in inferior leads (II, III, aVF).surrogate

Implication

Observation of P wave morphology during tachycardia has adjunctive diagnostic value for determining the ablation site in patients with long RP tachycardia.

Abstract

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Discussion

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Cite This Study

Motokawa et al. (1995) studied this question.

synapsesocial.com/papers/6a15803915658026c0827151 https://doi.org/10.5105/jse.15.720

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The negative P wave in inferior leads is shallow when the retrograde impulse from the ventricle spreads up the anterior interatrial septum while it is deep when the retrograde impulse propagates up the posterior interatrial septum-Report of three case.

Structured PICO

Implication

Abstract

Discussion

Cite This Study

The negative P wave in inferior leads is shallow when the retrograde impulse from the ventricle spreads up the anterior interatrial septum while it is deep when the retrograde impulse propagates up the posterior interatrial septum-Report of three case.

Structured PICO

Implication

Abstract

Discussion

Cite This Study

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