Catheter electrode

… A pacemaker consists of a battery and electrodes that transmit electric current to the heart. There are two types of electrodes: myocardial electrodes, which are fixed directly to the myocardium, and catheter electrodes, which are inserted through a peripheral vein using a thin, cord-like conductor called a catheter and then inserted into the right atrium or right ventricle and fixed there along the venous flow. Myocardial electrodes are sewn into place after an incision is made in the chest to expose the myocardium, and are often used during cardiac surgery. Catheter electrodes require only a small incision in a peripheral vein under local anesthesia, so they have little effect on the body. …

*Some of the terminology that refers to "catheter electrodes" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…　ペースメーカーは電池と，電流を心臓に伝える電極からできている。電極には，心筋に直接固定する心筋電極と，末梢静脈からカテーテルといわれる細い索状の導線を挿入し，静脈の流れに沿って右心房あるいは右心室へ入れて固定するカテーテル電極がある。心筋電極は胸部を切開して心筋を露出したうえで縫いつけるもので，心臓手術時にしばしば用いられ，カテーテル電極は末梢静脈を局所麻酔で小さく切開するだけですむため，生体に与える影響は小さい。…

※「カテーテル電極」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報