シリコン被覆リードの運命 植込後12年を経過した症例での光顕的および電顕的検索

進藤 剛毅; 水野 明; 松本 博志; 中山 至誠; 須藤 憲一; 松永 仁; 岡部 英男; 小塚 裕; 浅野 献一

doi:10.11392/jsao1972.10.1146

Late result of implanted silicone insulated pacemaker lead

-its long term followup with scanning electron microscopic analyses

G. SHINDO, A. MIZUNO, H. MATSUMOTO, S. NAKAYAMA, K. SUDO, [in Japanese], H. OKABE, Y. KOTSUKA, K. ASANO

Author information

G. SHINDO
Department of Thoracic Surgery, Faculty of Medicine, University of Tokyo
A. MIZUNO
Department of Thoracic Surgery, Faculty of Medicine, University of Tokyo
H. MATSUMOTO
Department of Thoracic Surgery, Faculty of Medicine, University of Tokyo
S. NAKAYAMA
Department of Thoracic Surgery, Faculty of Medicine, University of Tokyo
K. SUDO
Department of Thoracic Surgery, Faculty of Medicine, University of Tokyo
[in Japanese]
Department of Thoracic Surgery, Faculty of Medicine, University of Tokyo
H. OKABE
Department of Thoracic Surgery, Faculty of Medicine, University of Tokyo
Y. KOTSUKA
Department of Thoracic Surgery, Faculty of Medicine, University of Tokyo
K. ASANO
Department of Thoracic Surgery, Faculty of Medicine, University of Tokyo

Keywords: silicone insulator, scanning electron microscope, transvenous endocardial lead, stimulation threshold

JOURNAL FREE ACCESS

1981 Volume 10 Issue 6 Pages 1146-1149

DOI https://doi.org/10.11392/jsao1972.10.1146

Details

Abstract

Several abnormalities of silicone insulator in its microscopic structure and foundamental microscopic structure of silicone itself were found in Medtronic #5816 pacemaker lead which has been implanted more than 12 yrs, in a human body, although Nickel/alloy lead wire was seemed intact. Recent newer silicone pacemaker insulators are much improved in their microscopic structural qualities.
Further examinations on pacemaker lead insulators will be required for making great progress in this field.

Corresponding author

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