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May 12, 2017Annals of Noninvasive ElectrocardiologyOpen Access

In all 3 patients, fast anterograde conduction was documented with shortest preexcited RR intervals of 200-240 ms, despite intermittent preexcitation.

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Why the study?

Does intermittent preexcitation on resting 12-lead ECG reliably indicate a low-risk accessory pathway?

Population

3 patients with intermittent loss of the preexcitation pattern in the ECG that had undergone an…

Design

Case_series

Authors

MJMarek JastrzębskiPKPiotr KuklaMPMaciej Pitak

Discussion

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Overview

Intermittent preexcitation does not preclude rapid conduction; hypothesis-generating for ECG-based risk stratification in preexcitation syndromes.

Structured PICO

Does intermittent preexcitation on resting 12-lead ECG reliably indicate a low-risk accessory pathway?

P
Population
3 patients with intermittent loss of the preexcitation pattern in the ECG that had undergone an electrophysiological study
I
Intervention
Electrophysiological study
O
Outcome
Fast anterograde conduction (shortest preexcited RR intervals)surrogate

Intermittent preexcitation on resting ECG is insufficiently specific for diagnosing a low-risk accessory pathway and cannot replace electrophysiological study.

Cite This Study

Jastrzębski et al. (2017) studied this question.

synapsesocial.com/papers/6a9065c6e73a4c404fc93acfhttps://doi.org/10.1111/anec.12464
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Development of Rapid Preexcited Ventricular Response to Atrial Fibrillation in a Patient with Intermittent Preexcitation2012 · 36 citations
  2. 2Intermittent Preexcitation: Marked Enhancement of Anterograde Conduction in the Atrioventricular Accessory Pathway with Isoproterenol1988 · 16 citations
  3. 3The Electrophysiological Characteristics of Accessory Pathways in Pediatric Patients with Intermittent Preexcitation2013 · 44 citations
  4. 4Can noninvasive testing identify benign patterns of suggested pre‐excitation on electrocardiogram?2019
  5. 5An Unpredictable Atrioventricular Accessory Pathway: Low‐Risk or High‐Risk?2025