Effects of Linear Ablation at the Isthmus Between the Tricuspid Annulus and Inferior Vena Cava for Atrial Flutter on Autonomic Nervous Activity : Analysis of Heart Rate Variability

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概要

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• Heart rate is largely affected by the autonomic nervous system. However, little is known about the anatomic pathway of autonomic nerve fibers innervating the sinus node. The present study:(1)evaluates the effects of cavotricuspid isthmus ablation for common atrial flutter(AFL)on antonomic nervous function by using heart rate variability analysis, and(2)invertigates the distribution of autonomic nerve pathways innervating the sinus node. Twelve patients with paroxysmal common atrial flutter who maintained sinus rhythm both before and after radiofrequency ablation were selected for the study. Holter ambulatory recordings were performed before and after(2.3±1.0 days)radiofrequency ablation of cavotricuspid isthmus. Heart rate and time domain(SDANN, rMSSD, pNN50)and frequency domain(low frequency(LF), high frequency(HF), LF/HF)analysis of heart rate variability were compared before and after ablation. Mean heart rate did not change significantly after ablation(59±6 vs 61±9beats/min); parasympathetic indices of heart rate variability(SDANN, rMSSD, pNN50, HF)did not change significantly(110±37 vs 117±20ms; 32±21 vs 28±9ms; 4.8±0.9 vs 4.7±0.7ln(ms^2)); and sympathetic indices of heart rate variability(LF/HF)did not change significantly(1.1±0.2 vs 1.2±0.1). Cavotricuspid isthmus ablation for atrial flutter did not significantly change heart rate and heart rate variability because parasympathetic and sympathetic fibers innervating the sinus node are scarce in this region.

• 社団法人日本循環器学会の論文
• 2001-12-20

著者

• Suzuki Akihiro

  Department Of Cardiology Musashino Red Cross Hospital

• Yamaguchi Iwao

  Departments of Internal Medicine, Surgery, Pharmacology, University of Tsukuba

• Kanemoto Miyako

  Cardiology Department of Internal Medicine, University of Tsukuba Graduate School

• Kanemoto Miyako

  Department of Cardiology, Tsukuba Medical Center Hospital

• Endo Masae

  Department Of Cardiology Moriya General Daiichi Hospital

• Komaki Kohtaroh

  Division Of Cardiology Gunma Prefectural Cardiovascular Center

• Kuga Keisuke

  Department Of Cardiology

• Kanemoto Miyako

  Division Of Cardiology Tsukuba University Hospital Graduate School Of Comprehensive Human Sciences

• Kanemoto Miyako

  Division Of Cardiology Cardiovascular Center Tsuchiura Kyodo Hospital

• Endoh Masae

  Department Of Cardiology Moriya General Daiichi Hospital

• Kuga Keisuke

  Cardiology Department Of Internal Medicine University Of Tsukuba Graduate School Of Comprehensive Hu

• Li Aiyan

  Department of Internal Medicine, Institute of Clinical Medicine, University of Tsukuba

• Niho Bumpei

  Department of Internal Medicine, Institute of Clinical Medicine, University of Tsukuba

• Enomoto Mami

  Department of Internal Medicine, Institute of Clinical Medicine, University of Tsukuba

• Kajinami Koji

  Department of Cardiology Kanazawa Medical University

• Niho Bunpei

  Department Of Internal Medicine University Of Tsukuba

• Yamaguchi Iwao

  Division Of Cardiology Institute Of Clinical Medicine Graduate School Of Comprehensive Human Science

• Kanemoto Miyako

  Department Of Cardiology Tsukuba Medical Center Hospital

• Li Aiyan

  Department Of Internal Medicine Institute Of Clinical Medicine University Of Tsukuba

• Niho Bumpei

  Department Of Cardiology Tsukuba Memorial Hospital

• Enomoto Mami

  Department Of Internal Medicine University Of Tsukuba

• Yamaguchi Iwao

  Department Of Cardiology

• Niho Bumpei

  Department Of Internal Medicine University Of Tsukuba

• Kuga Keisuke

  Department Of Internal Medicine University Of Tsukuba

• Endo Masae

  Department Of Internal Medicine Moriya General Daiichi Hospital

• Suzuki Akihiro

  Department Of Anesthesiology And Critical Care Medicine Asahikawa Medical College

• Kanemoto Miyako

  Division Of Cardiology University Of Tsukuba Graduate School Of Comprehensive Human Sciences

• Yamaguchi Iwao

  Department of Applied Chemistry, Faculty of Engineering, Osaka University

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