植込み型除細動作動で死亡率増加？

Implantable cardioverter defibrillator (ICD)　ショックは、Seattle Heart Failure Model (SHFM)で予測したより生命予後を悪くする可能性
antitachycardia pacing (ATP)はリスクを増加しない

Shocks burden and increased mortality in implantable cardioverter defibrillator patients
Heart Rhythm Received 26 June 2011; accepted 28 July 2011. published online 03 August 2011.

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専門家による解説が必要だろうが、”"raise concerns that shocks themselves may be causally associated with an increased risk of death and are not just a marker of increased risk due to a deteriorating substrate that leads to the arrhythmias and shocks”ということがmedpageに書かれており、ＩＣＤによる潜在的リスクへの懸念再燃とのこと。