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Quantitative assessment of the recovery property of atriofascicular/atrioventricular-type Mahaim fiber.

Publication ,  Journal Article
Lee, P-C; Kanter, R; Gomez-Marin, O; Wolff, GS; Young, M-L
Published in: J Cardiovasc Electrophysiol
June 2002

INTRODUCTION: One of the characteristics of the Mahaim fiber is that it possesses a decremental property related to the slow rate of recovery of its excitability similar to that of AV node. The aim of this study was to evaluate the recovery property of the atriofascicular/atrioventricular-type Mahaim fiber and compare it with that of the AV node. METHODS AND RESULTS: Nine patients with a Mahaim fiber were studied; 8 of the patients had atriofascicular/atrioventricular-type fiber. Different models were used to analyze the relationship between conduction time for the Mahaim fiber and the corresponding coupling intervals. The simplest model with the best fit was found to be the linear regression of the natural log of conduction time on corrected coupling intervals. The individual R2 values ranged between 0.43 and 0.98 for the Mahaim fiber and between 0.79 and 0.98 for AV node. The final model chosen for the log transformed data for the Mahaim fiber and for the AV node was the line with parameter estimates defined as a weighted average, over patients, of the corresponding individual line parameters. The weight used for each parameter was the inverse of its variance. The slopes of the lines of the transformed data were not significantly different between the Mahaim fiber and the AV node. Thus, the best fitting curve for the recovery property of the AF-type Mahaim fiber is a simple exponential curve similar to that of the AV node. CONCLUSION: The atriofascicular/atrioventricular-type Mahaim fiber has a quantitative recovery property very similar to that of the AV node.

Duke Scholars

Published In

J Cardiovasc Electrophysiol

DOI

ISSN

1045-3873

Publication Date

June 2002

Volume

13

Issue

6

Start / End Page

535 / 541

Location

United States

Related Subject Headings

  • Recovery of Function
  • Predictive Value of Tests
  • Pre-Excitation, Mahaim-Type
  • Male
  • Linear Models
  • Humans
  • Female
  • Electrophysiologic Techniques, Cardiac
  • Child
  • Catheter Ablation
 

Citation

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Lee, P.-C., Kanter, R., Gomez-Marin, O., Wolff, G. S., & Young, M.-L. (2002). Quantitative assessment of the recovery property of atriofascicular/atrioventricular-type Mahaim fiber. J Cardiovasc Electrophysiol, 13(6), 535–541. https://doi.org/10.1046/j.1540-8167.2002.00535.x
Lee, Pi-Chang, Ronald Kanter, Orlando Gomez-Marin, Grace S. Wolff, and Ming-Lon Young. “Quantitative assessment of the recovery property of atriofascicular/atrioventricular-type Mahaim fiber.J Cardiovasc Electrophysiol 13, no. 6 (June 2002): 535–41. https://doi.org/10.1046/j.1540-8167.2002.00535.x.
Lee P-C, Kanter R, Gomez-Marin O, Wolff GS, Young M-L. Quantitative assessment of the recovery property of atriofascicular/atrioventricular-type Mahaim fiber. J Cardiovasc Electrophysiol. 2002 Jun;13(6):535–41.
Lee, Pi-Chang, et al. “Quantitative assessment of the recovery property of atriofascicular/atrioventricular-type Mahaim fiber.J Cardiovasc Electrophysiol, vol. 13, no. 6, June 2002, pp. 535–41. Pubmed, doi:10.1046/j.1540-8167.2002.00535.x.
Lee P-C, Kanter R, Gomez-Marin O, Wolff GS, Young M-L. Quantitative assessment of the recovery property of atriofascicular/atrioventricular-type Mahaim fiber. J Cardiovasc Electrophysiol. 2002 Jun;13(6):535–541.
Journal cover image

Published In

J Cardiovasc Electrophysiol

DOI

ISSN

1045-3873

Publication Date

June 2002

Volume

13

Issue

6

Start / End Page

535 / 541

Location

United States

Related Subject Headings

  • Recovery of Function
  • Predictive Value of Tests
  • Pre-Excitation, Mahaim-Type
  • Male
  • Linear Models
  • Humans
  • Female
  • Electrophysiologic Techniques, Cardiac
  • Child
  • Catheter Ablation