Implantation of automatic implantable cardioverter defibrillator (AICD) in patients with ventricular tachyarrhythmias

We experienced three cases of implantation of automatic implantable cardioverter defibrillator in patients with ventricular tachyarrhythmias. (VT; 1, VT+VF; 1, idiopathic VF; 1) One patient suffered from broad anterior myocardial infarction and another dilated cardiomyopathy. Implantation of AICD wa...

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Published inJinko Zoki Vol. 21; no. 1; pp. 104 - 108
Main Authors MATSUI Y., GOH K., GOHDA T., SAKAI K., YASUDA K., SAKURAI M.
Format Journal Article
LanguageJapanese
Published 一般社団法人 日本人工臓器学会 1992
JAPANESE SOCIETY FOR ARTIFICIAL ORGANS
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ISSN0300-0818
1883-6097
DOI10.11392/jsao1972.21.104

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Summary:We experienced three cases of implantation of automatic implantable cardioverter defibrillator in patients with ventricular tachyarrhythmias. (VT; 1, VT+VF; 1, idiopathic VF; 1) One patient suffered from broad anterior myocardial infarction and another dilated cardiomyopathy. Implantation of AICD was indicated for patients who survived circulatory arrest or with life-threatening VT. In all cases median sternotomy was performed. Myocardial electrodes for sensory and large patch-small patch electrodes for defibrillation were selected. One case of moderate cardiac failure which needs intensive care and one case of pericarditis occurred as perioperative complication. In the follow-up period, AICD worked effectively in a patient of spontaneous VF 6 months after implantation. It is concluded that AICD system is effective for the life-threatening ventricular tachyarrhythmias although the estimation in longer follow-up period should be warrented. 致死性難治性心室性不整脈に対する植え込み型除細動器(AICD)による外科治療経験を得た。症例は3例で不整脈診断は持続型心室頻拍(VT)+心室細動(VF) 1例、持続型VT 1例、特発性VF 1例で、基礎疾患として広範前壁心筋梗塞1例、拡張型心筋症1例を有していた。3例全例で心蘇生の既往を認めた。術前左室駆出率は26%、37%、67%であった。手術は胸骨正中切開を行い、除細動電極には大小パッチを、感知電極には心筋電極を用いた。除細動域値(DFT)測定のため術中除細動を2-5回行い初回放電ジュールを設定した際、全例有効な除細動が得られた。術後観察期間10箇月-1年7箇月で遠隔死亡はなく1例で6箇月後に自然発作に対しAICDが有効に作動した。合併症として1例に心不全、1例で心膜炎を呈した。遠隔期の作動性能について今後観察を続ける予定である。
ISSN:0300-0818
1883-6097
DOI:10.11392/jsao1972.21.104