植込み心臓ペースメーカー装置の放射線照射による影響

• 豊田 道明

  杏林大学医学部胸部外科

書誌事項

タイトル別名

• Effect of telecobalt irradiation on the function of implantable pacemaker.

抄録

In patients implanted with a pacemaker, radiotherapy may be chosen as the treatment when malignant tumor is complicated. Therefore, on the assumption that the pacemaker apparatus is exposed to X-ray, 21 lithium cells used for CMOS or TTL circuit were collected before expiration date and irradiated with ⁶⁰Co. The pacemaker used were 10 apparatuses of unprogrammed model VVI, 9 apparatuses of programmed model VVI and 2 apparatuses programmed model DVI. Irradiation was done up to 1, 000 rads in dividing doses or at 1, 000 rads as a single dose. Observations were made for effects on intervals, amplitude and wave shape of stimula to pacemaker, power, sensitivity, refractory phase, and program functions. In conclusion, it was found that pacemaker is sure to be affected considerably for various functions, although no functional arrest occurs, under irradiation up to 1, 000 rads of ⁶⁰Co in dividing dose. When irradiation at 1, 000 rads was given as a single dose, dysfunctions of pacemaker developed in some cases indicating that direct irradiation at high doses is contraindicated for pacemakers using much of LSI-CMOS.

収録刊行物

• 人工臓器

  人工臓器 15 (4), 1765-1773, 1986

  一般社団法人 日本人工臓器学会

キーワード

• Pacemaker
• Irradiation
• ⁶⁰Co
• LSI-CMOS

詳細情報

• CRID: 1390001204958099968
• NII論文ID: 130001735262
• DOI: 10.11392/jsao1972.15.1765
• ISSN: 18836097
• ISSN: 03000818
• Web Site: https://search.jamas.or.jp/link/ui/1988120904
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
  • Crossref
• 抄録ライセンスフラグ: 使用不可