高齢者における上室性頻脈(SVT)アブレーション:特徴と転帰
Yi Yi Chua1, Julian Cheong Kiat Tay1, Eric Tien Siang Lim1
1Department of Cardiology National Heart Centre Singapore Singapore Singapore.
Journal of arrhythmia
|February 4, 2026
まとめ
上室性頻脈(SVT)のカテーテルアブレーションは、高齢者患者において安全かつ有効であり、若年患者と比較して同等の高い成功率と低い合併症率を示した。症候性SVTに対するアブレーション治療を検討する上で、年齢を障壁とすべきではない。
科学分野:
- 心臓病学、電気生理学、老年医学
背景:
- カテーテルアブレーションは、症候性上室性頻脈(SVT)の主要な治療法である。高齢者集団におけるSVTアブレーションの有効性と安全性に関するデータは限られている。本研究では、高齢成人におけるSVTアブレーションの特徴と転帰を調査する。
研究 の 目的:
- 70歳以上の患者群と70歳未満の患者群を対象とした、SVTに対するカテーテルアブレーションの臨床的および手技的特徴と転帰の比較を目的とする。高齢者におけるSVTアブレーションの安全性と有効性を評価する。
主な方法:
- 2011年5月から2022年5月の間にSVT(AVNRT、AVRT、AT)アブレーションを受けた1758例の患者の後ろ向き解析を実施した。患者を70歳以上(n=150)と70歳未満(n=1608)の2群に分類した。除外基準は、心房粗動、心房細動、または心室性不整脈に対する同時アブレーションであった。
主要な成果:
- 高齢者群では、構造的心疾患および虚血性心疾患の有病率が高く、AVNRTの有病率が高かった。基礎疾患に違いがあったにもかかわらず、手技時間は高齢者群の方が短かった。重要なことに、即時合併症率と成功率は、高齢者群と若年者群の間で同等であった。
結論:
- SVTカテーテルアブレーションは、高齢者患者において、若年コホートと比較して同等の高い急性期成功率と低い合併症率を示す。症候性高齢者患者は、年齢に関わらずSVTアブレーションの適応を考慮すべきである。高齢者におけるSVTアブレーションの患者選択を洗練させるために、併存疾患と長期転帰に関するさらなる研究が必要である。
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