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[Atrioventricular asynchrony and pacing]

Lanfranco Antonini1, Vincenzo Pasceri, Alessandro Aiello

  • 1Dipartimento di Malattie Cardiovascolari, Ospedale San Filippo Neri, Roma. lanfranco.antonini@libero.it

Giornale Italiano Di Cardiologia (2006)
|April 13, 2010
PubMed

Insights

Atrioventricular asynchrony, including dissociation and block, can cause hemodynamic issues. Programmed synchronous atrioventricular delay pacing effectively resolves these issues.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Cardiac Physiology

Context:

  • Atrioventricular asynchrony encompasses atrioventricular dissociation and block.
  • It can manifest in pacemaker syndrome or with asynchronous atrioventricular delay during sequential pacing.
  • A specific form linked to first-degree atrioventricular block and left atrial outflow obstruction has significant hemodynamic impact.

Purpose:

  • To define and categorize types of atrioventricular asynchrony.
  • To highlight the hemodynamic relevance of specific asynchrony patterns.
  • To present sequential pacing with synchronous atrioventricular delay as a solution.

Summary:

  • Atrioventricular asynchrony includes systolic (simultaneous atrial and ventricular contraction) and systo-diastolic (atrial systole at ventricular diastole onset) types.
  • These conditions, particularly when associated with conditions like mitral stenosis, can lead to relevant hemodynamic effects.
  • The study identifies programmed synchronous atrioventricular delay pacing as a method to eliminate these asynchronies.

Impact:

  • Provides a clear classification of atrioventricular asynchrony.
  • Emphasizes the clinical significance of hemodynamic alterations due to asynchrony.
  • Offers a therapeutic strategy for managing atrioventricular asynchrony through optimized pacing.

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