Role of right middle pulmonary vein in patients with paroxysmal atrial fibrillation

Hsuan Ming Tsao, Mei Han Wu, Wen Chung Yu, Ching Tai Tai, Yung Kuo Lin, Ming Hsiung Hsieh, Yu An Ding, Mau Song Chang, Shih Ann Chen

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

Introduction: Elimination of the ectopic foci from pulmonary veins (PVs) has proved to be a curative therapy for focal atrial fibrillation (AF). However, information about the importance of the right middle PV (RMPV) in initiation of AF and radiofrequency ablation of AF is limited. Method and Results: Forty-three patients (34 men and 9 women; age 65 ± 12 years) with drug-refractory paroxysmal AF underwent electrophysiologic study and catheter ablation for treatment of AF. Three-dimensional magnetic resonance angiography (MRA) of the PVs and left atrium (LA) was performed to determine the anatomic patterns of RMPV. Diameter of PV ostium was measured at the junction of the LA and each PV. MRA findings showed the following: (1) 36 (84%) of 43 patients had a discrete RMPV; (2) there are three drainage patterns of RMPV, including joining the proximal part (80% of paroxysmal AF patients. Ectopy from RMPV can initiate AF, and radiofrequency ablation of RMPV foci is feasible and safe.

Original languageEnglish
Pages (from-to)1353-1357
Number of pages5
JournalJournal of Cardiovascular Electrophysiology
Volume12
Issue number12
Publication statusPublished - 2001
Externally publishedYes

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Pulmonary Veins
Atrial Fibrillation
Magnetic Resonance Angiography
Heart Atria
Catheter Ablation
Drainage
Therapeutics
Pharmaceutical Preparations

Keywords

  • Atrial fibrillation
  • Magnetic resonance angiography
  • Pulmonary vein

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology

Cite this

Role of right middle pulmonary vein in patients with paroxysmal atrial fibrillation. / Tsao, Hsuan Ming; Wu, Mei Han; Yu, Wen Chung; Tai, Ching Tai; Lin, Yung Kuo; Hsieh, Ming Hsiung; Ding, Yu An; Chang, Mau Song; Chen, Shih Ann.

In: Journal of Cardiovascular Electrophysiology, Vol. 12, No. 12, 2001, p. 1353-1357.

Research output: Contribution to journalArticle

Tsao, HM, Wu, MH, Yu, WC, Tai, CT, Lin, YK, Hsieh, MH, Ding, YA, Chang, MS & Chen, SA 2001, 'Role of right middle pulmonary vein in patients with paroxysmal atrial fibrillation', Journal of Cardiovascular Electrophysiology, vol. 12, no. 12, pp. 1353-1357.
Tsao, Hsuan Ming ; Wu, Mei Han ; Yu, Wen Chung ; Tai, Ching Tai ; Lin, Yung Kuo ; Hsieh, Ming Hsiung ; Ding, Yu An ; Chang, Mau Song ; Chen, Shih Ann. / Role of right middle pulmonary vein in patients with paroxysmal atrial fibrillation. In: Journal of Cardiovascular Electrophysiology. 2001 ; Vol. 12, No. 12. pp. 1353-1357.
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AU - Tsao, Hsuan Ming

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AU - Yu, Wen Chung

AU - Tai, Ching Tai

AU - Lin, Yung Kuo

AU - Hsieh, Ming Hsiung

AU - Ding, Yu An

AU - Chang, Mau Song

AU - Chen, Shih Ann

PY - 2001

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N2 - Introduction: Elimination of the ectopic foci from pulmonary veins (PVs) has proved to be a curative therapy for focal atrial fibrillation (AF). However, information about the importance of the right middle PV (RMPV) in initiation of AF and radiofrequency ablation of AF is limited. Method and Results: Forty-three patients (34 men and 9 women; age 65 ± 12 years) with drug-refractory paroxysmal AF underwent electrophysiologic study and catheter ablation for treatment of AF. Three-dimensional magnetic resonance angiography (MRA) of the PVs and left atrium (LA) was performed to determine the anatomic patterns of RMPV. Diameter of PV ostium was measured at the junction of the LA and each PV. MRA findings showed the following: (1) 36 (84%) of 43 patients had a discrete RMPV; (2) there are three drainage patterns of RMPV, including joining the proximal part (80% of paroxysmal AF patients. Ectopy from RMPV can initiate AF, and radiofrequency ablation of RMPV foci is feasible and safe.

AB - Introduction: Elimination of the ectopic foci from pulmonary veins (PVs) has proved to be a curative therapy for focal atrial fibrillation (AF). However, information about the importance of the right middle PV (RMPV) in initiation of AF and radiofrequency ablation of AF is limited. Method and Results: Forty-three patients (34 men and 9 women; age 65 ± 12 years) with drug-refractory paroxysmal AF underwent electrophysiologic study and catheter ablation for treatment of AF. Three-dimensional magnetic resonance angiography (MRA) of the PVs and left atrium (LA) was performed to determine the anatomic patterns of RMPV. Diameter of PV ostium was measured at the junction of the LA and each PV. MRA findings showed the following: (1) 36 (84%) of 43 patients had a discrete RMPV; (2) there are three drainage patterns of RMPV, including joining the proximal part (80% of paroxysmal AF patients. Ectopy from RMPV can initiate AF, and radiofrequency ablation of RMPV foci is feasible and safe.

KW - Atrial fibrillation

KW - Magnetic resonance angiography

KW - Pulmonary vein

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