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研究發現:部分70歲以下輕中度心臟功能障礙患者植入ICD可能降低猝死風險
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自由时报1 hour agoHealth2 min readChinaView translation

研究發現:部分70歲以下輕中度心臟功能障礙患者植入ICD可能降低猝死風險

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澳洲主導的國際研究發現,對於部分70歲以下、左心室射出分率36%-50%、有心肌疤痕的輕中度心臟功能障礙患者,植入式心律轉復除顫器(ICD)可能顯著降低心因性猝死風險,但對所有年齡層合併分析則無顯著整體益處。

AI-generated summary

Why It Matters

目前治療指引認為只有心臟功能嚴重下降的患者適合植入ICD,但研究顯示許多因心臟事件突然死亡的患者並無嚴重功能障礙,因此未符合現行標準。

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2026/09/09 14:41

研究發現,對部分70歲以下、患有輕度至中度心臟功能障礙及心肌疤痕的患者而言,ICD可能為其帶來益處。圖為示意圖。(擷自shutterstock)

〔編譯謝宜哲/綜合報導〕1項由澳洲主導的國際研究發現,對於部分70歲以下、患有輕度至中度心臟功能障礙及心肌疤痕的患者而言,植入式心律轉復除顫器(ICD)可能為其帶來益處。此研究發表在《美國醫學會期刊》上。

根據科學網站《SciTechDaily》報導,ICD是1種植入人體內的小型裝置,可以偵測並矯正危險的心律異常,而這些心律異常可能進一步導致心因性猝死。目前的治療指引主要認為,只有心臟功能嚴重下降的患者才適合植入ICD。對此澳洲弗林德斯大學心血管醫學教授塞爾瓦納亞甘(Joseph Selvanayagam)與其團隊測試,ICD是否也能讓病情較輕的患者受益。

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研究在澳洲、德國及英國的18個研究中心進行,受試者為輕度至中度心臟功能障礙患者,他們的左心室射出分率為36%至50%,且透過心臟磁共振檢測出心肌疤痕。研究團隊讓這類患者植入ICD,並觀察是否能降低心因性猝死或嚴重心室性心律不整發生率。

分析結果顯示,將所有年齡層的患者合併分析後,植入ICD並沒有顯著降低心因性猝死或嚴重心室性心律不整這2種事件的整體發生率。但研究團隊進一步單獨分析心因性猝死後發現,植入ICD與顯著降低整體研究族群的心因性猝死風險相關。

研究團隊還注意到,在研究開始前就預先設定的分組分析中,70歲以下患者的心因性猝死或嚴重心室性心律不整發生率顯著降低。

研究團隊表示,大多數因心臟事件而突然死亡的患者,其實並沒有嚴重心臟功能障礙。因這類患者生前不符合現行公認治療指引,通常不會被提供ICD。而此研究的發現,為個別患者的治療決策提供重要的新資訊。

研究團隊補充,如有人因為心肌病變或心肌梗塞導致心臟功能輕度至中度下降,那麼應該接受心臟磁共振檢查。

What to Watch

AI outlook — possibilities, not facts

  • 未來治療指引可能修訂,將心肌疤痕檢查納入ICD植入評估標準

    Likely · Within months

Open Questions

  • 具體哪些70歲以下患者最可能從ICD中受益?
  • 長期隨訪結果是否顯示總體生存率提升?
  • 心肌疤痕的檢測標準是否應納入常規評估?

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This article was originally published by 自由时报.

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