What question did this study set out to answer?

The aim is to improve localization techniques for ventricular arrhythmias using a new electrocardiographic atlas.

April 1, 1985HeartOpen Access

Ventricular arrhythmias. A guide to their localisation.

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Why the study?

Can 12-lead electrocardiographic patterns accurately localize the site of focal ventricular arrhythmias?

Population

129 patients undergoing cardiac surgery

Design

Case_series

Authors

PHP. HoltGuy's Hospital CSChris SmallpeiceRoyal Stoke University Hospital PDP B DeverallGuy's Hospital

Discussion

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Implication

Paced QRS patterns may aid focal VT localization; hypothesis-generating for 12-lead ECG-guided ablation.

Key Points

The aim is to improve localization techniques for ventricular arrhythmias using a new electrocardiographic atlas.
Paced 27 epicardial sections of the heart during surgery and through temporary wires postoperatively
Recorded and analyzed 12 lead electrocardiograms for various QRS axis measurements
Studied a cohort of 129 patients undergoing cardiac surgery.
Distinctive 12 lead electrocardiographic patterns were produced by each ventricular region paced.
Suboptimal localization accuracy observed for arrhythmias arising from the inferior right ventricle compared to the anterior left ventricle.
Electrocardiogram appearances were influenced by underlying diseases like myocardial infarction.

Structured PICO

Can 12-lead electrocardiographic patterns accurately localize the site of focal ventricular arrhythmias?

Population

129 patients undergoing cardiac surgery

Intervention

Pacing of 27 epicardial sections of the heart and mitral papillary muscles (intraoperatively in 5 patients, postoperatively via temporary epicardial wires in 124 patients)

Outcome

12-lead electrocardiographic appearances (frontal and horizontal plane QRS axis, maximum limb lead QRS amplitude, and QRS duration)surrogate

Epicardial pacing demonstrates that specific ventricular regions produce distinctive 12-lead ECG patterns, providing a useful atlas for localizing ventricular tachycardia to guide ablation.

Cite This Study

Holt et al. (1985) studied this question.

synapsesocial.com/papers/6a215404c4e60624665ae9ec https://doi.org/10.1136/hrt.53.4.417

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Ventricular arrhythmias. A guide to their localisation.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Ventricular arrhythmias. A guide to their localisation.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

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